Good Qualities A Leader Must Possess

Good Qualities A Leader Must Possess Every people have many points of view and statement to justify a person which is the person is a successful person. So, the people are looking for the qualities and achievement of the successful person for identified how successful they are. From here, we are known that the successful person must have the qualities and achievement so that the people will call them as successful people. In addition, what are actually meaning of qualities and achievement? Qualities is meaning that the characteristic and act of behaviour of an individual. Qualities also refer to disposition of a person. There are many type of qualities was having on an individual such as mature, excellent ability, stable personality, working hard and so on. Different people have different of qualities; some of the people are having good qualities and some of the people having bad qualities too. For the successful person, it should have well of qualities and use their qualities in the right ways. In my view and my statement, I feel that a successful person should have many good of qualities. The good of qualities for the successful person that I feel that such as, good presentation of skills, kindness, politeness, generosity of spirit, humbleness and uniqueness of personality. Firstly, we talk about good presentation of skills, good presentation of skill is mean that an individual can express themselves and performing by well and people can understand easily. An individ ual can use good presentation of skills in many-sided such as business presentation, school presentation, giving speech and entertainment performance. Due to having this quality the people will being attract from an individualà ¢Ã¢â€š ¬Ã¢â€ž ¢s performance and an individual easily to express and presented to the others. Secondly, kindness, kindness is refers to kind it also mean that a personà ¢Ã¢â€š ¬Ã¢â€ž ¢s acting and treating the others by familiar behaviour and always concern the others. An individual having kindness of qualities, that individual will be treasured by others. Besides that, kindness people will also care about the other and will not do something that will hurt and harm to the others as this kind of people will concern and take cares about the peopleà ¢Ã¢â€š ¬Ã¢â€ž ¢s feelings and heartfelt wishes. Thirdly, politeness, meaning of politeness is best expressed as the practical of good manner or ritual. Put it simple, politeness was also meaning that an individual always respect to the eldership and greet people when faced them. Politeness was very common in our surrounding, whatever we talk, we meet others, we go somewhere and we see someone, we will be politeness as we are inherited our culture from our parents. Different culture has different way how to greet people or talk to others. Fourthly, we are going to talk about generosity of spirit. Generosity of spirit is mean that an individual was willingness to give of share something to needy people or others, it also mean that an individual share and give something to someone based on his or her ability and without asking any remuneration. Usually this kind of people are rich people as they are helping the poor and needy people by giving them money or conduct a charity to support them. Next, the fifth quality is humbleness. Humb leness is refer to meekness, it mean an attitude of modesty and lack of pride or proud. The humbleness people will not act pride and will not be blow up when the others was praise them or achieved something. A humble person is often not worried about who is best or better. A humbleness person has a realistic evaluation of her own qualities and realizes there are many people with the same qualities. The last quality is uniqueness of personality. Uniqueness of personality was mean that an individual has the personality that the majority of people does not have and uniqueness of personality also mean an individual always doing and thinking something different between the others. So, this kind of people can think and act something new and creative. Besides that, the person who was having this type of quality will always make others not too easy to understanding about him or her. However, a successful person was not only has these type of good qualities, it also need some achievement to make people feel and justified that was a successful person itself. So, what achievement an individual had as I feel that he or she is a successful person? In my view and my statement, I feel that a successful person should had achieved such as organized and support charity to the poor and needy people, has a happiness family, gain a lot of people recognized and appreciated, has a lot of money and gain many award. So, what is organized and support charity to the poor and needy people? Organized and support charity to the poor and needy people is mean that an individual organize a charity such as donate a lot of money to the charity institution, hospital and school. Next, has a happiness family, this is mean that an individual able to let his or her family members especially father and mother have a good and comfortable shelter and bring to them a good living condition such as always by them sides to accompany them, always take care the family members and let them enjoy glory and wealthy living. Gain a lot of people recognized and appreciated, this is meaning that a person getting much of the people recognized, appreciated, love and respect as that people has a lot of talent such as talented entertaining, talented in business, talented in performing and so on. Most of these kinds of people were entertainer, singer, minister and so on. Other achievement are has a lot of money, a successful people should has a lot of money. This is because they can use the money to do some mean full things such as conduct a charity and establish a charity institution, this is linked to the organized and support charity to the poor and needy people. The last achievement is gain many award, in my view, a successful person should get many award so that I am calling him or her is a successful person. For example of the award is Grammy award, Guinness World Records award, Billbo ard award and so on. These awards were well known in the world, a person was being called as a successful person as they get these awards. One of a good example of that qualities and achievement would I feel justified in calling an individual successful is Michael Jackson. Michael Jackson is a good presentation of skills, kindness, and politeness, generosity of spirit, humbleness and uniqueness of personality person. As we knew, Michael Jackson is a well-known entertainer, he has a lot of talented such as in singing, dancing and performing. Why I feel that Michael Jackson is a successful person? This is because he has the qualities that I mentioned. For good presentation of skills, Michael Jackson has good presentation of skills, as he has had performed his concert all around the world and he always brought his message into his song and sing for us. Besides that, he expressed his feel and message by performing his concert and he also has had wrote his autobiography into a book and share to others. Next, Michael Jackson also has the qualities of generosity of spirit; he likes to help the people who are needy, poor and si ck person. From the previous news, we were knew that Michael Jackson was the most contribution to the charity in the world for all time as he is the worldà ¢Ã¢â€š ¬Ã¢â€ž ¢s largest personal donation on behalf of individuals. Other quality of Michael Jackson he has is humbleness. Michael Jackson is a humbleness person, he always be modest and do not be proud full as many people was praise and recognized him. Last quality does Michael Jackson has is uniqueness of personality, Michael Jackson is a person who is special and different between the other people. This is because whatever his dress up, his belief and his talent is different between the other entertainers. Michael Jackson had achieved many things that in family, in wealth, in music, been recognized by many people, in charity and many more. For the family, Michael Jackson was brought to his family a lot of things such as shelter, good living condition, luxury and happiness. He loved his family member and he always respect his elder parent especially his mother and his father. Therefore, he was achieved a happiness family. Next, Michael Jackson also achieved gain a lot of money; he was earned much of money by his world tour concert and selling his albums. Besides that, he also purchased the Neverland ranch from golf course entrepreneur William Bone in 1988 for a sum variously reported to be 16.5 dollars to 30 million dollars. From this, we are knew that Michael Jackson was has a lot of money. The other achievement that Michael Jackson achieved is gain a lot of people recognized and appreciated. Michael Jackson has been recognized by many people such as well-known entertainer, artist, sin ger, fans and so on. The people who are like him and love him was also appreciated him, the fans was bought his album and Michael Jackson was also achieved the most bigger selling albums in the world for all time as much of the people or fans are bought his albums. Apart from this, Michael Jackson also organized and support charity to the poor and needy people. He was established many centre such as hospital, charity centre and so on. Michael Jackson had earned the profit from his concert and donated all the profit to the charity centre and hospital. Michael Jackson also listed in the 2000 book of Guinness World Records for his support more charities than any other entertainer or personality. From here, we were knew that Michael Jackson was achieved organized and support charity to the poor and needy people. The last achievement that Michael Jackson had achieved is gain many award. There are many awards that Michael Jackson was gained such as Guinness Book of World Records for 13 ti mes, Grammy Awards for 19 times, Golden Globe award, American Music Award for 22 times, Billboard Awards for 40 times, World Music Award for 12 times, MTV Awards 13 times and many more. So, Michael Jackson is a successful person that I was called, it is because he is adopts my idea qualities and achievement that I felt. In conclusion, an individual wants to be a successful person, it must be with some qualities that can achieve to succeed and also needs some achievement to proof to the others as the others will calling him or her as a successful person. 3.0 Conclusion In this assignment, I had learned how to be a good and efficient leader by training and practise some characteristics that could be a leader. So, in order to be a good and efficient leader, it should have some certain qualities and characteristic. Then, the member will listen to you and respect you as long as you are a good and efficient leader. Besides that, I also get many information and details about how to be a good and efficient leader and some example of character that related to the topic. So, based on my research, I found many of good and efficient leaders, I will learn from them and practise like them. Apart from this, for this assignment, I also learned how to become a successful person. To become a successful person, it needs some qualities and achievement to become it. So, based on my ideas qualities and achievement, one of a character is been put in my assignment as an example to explain it. So, after this I will learn from that character and always training the good qualities in order to become a successful person.

Bridge Construction

LRFD Design Example for December 2003 FHWA NHI-04-041 Steel Girder Superstructure Bridge Prepared for FHWA / National Highway Institute Washington, DC US Units Prepared by Michael Baker Jr Inc Moon Township, Pennsylvania Development of a Comprehensive Design Example for a Steel Girder Bridge with Commentary Design Process Flowcharts for Superstructure and Substructure Designs Prepared by Michael Baker Jr. , Inc. November 2003 Technical Report Documentation Page 1. 4. Report No. 2. Government Accession No. 3. 5. Recipient’s Catalog No.Report Date FHWA NHI – 04-041 Title and Subtitle LRFD Design Example for Steel Girder Superstructure Bridge with Commentary 7. Author (s) December 2003 6. Performing Organization Code Raymond A. Hartle, P. E. , Kenneth E. Wilson, P. E. , S. E. , William A. Amrhein, P. E. , S. E. , Scott D. Zang, P. E. , Justin W. Bouscher, E. I. T. , Laura E. Volle, E. I. T. 8. Performing Organization Report No. B25285 001 0200 HRS 10. 11. 13. Work Unit No. (TRAIS) Contract or Grant No. 9. Performing Organization Name and Address Michael Baker Jr. , Inc. Related reading: Padma Bridge ParagraphAirside Business Park, 100 Airside Drive Moon Township, PA 15108 12. Sponsoring Agency Name and Address DTFH61-02-D-63001 Type of Report and Period Covered Federal Highway Administration National Highway Institute (HNHI-10) 4600 N. Fairfax Drive, Suite 800 Arlington, Virginia 22203 15. Supplementary Notes Final Submission August 2002 – December 2003 14. Sponsoring Agency Code Baker Principle Investigator: Raymond A. Hartle, P. E. Baker Project Managers: Raymond A. Hartle, P. E. and Kenneth E. Wilson, P. E. , S. E. FHWA Contracting Officer’s Technical Representative: Thomas K.Saad, P. E. Team Leader, Technical Review Team: Firas I. Sheikh Ibrahim, Ph. D. , P. E. 16. Abstract This document consists of a comprehensive steel girder bridge design example, with instructional commentary based on the AASHTO LRFD Bridge Design Specifications (Second Edition, 1998, including interims for 1999 through 2002). The design example and commentary are intended to serve as a guide to aid bridge design engineers with the implementation of the AASHTO LRFD Bridge Design Specifications, and is offered in both US Customary Units and Standard International Units.This project includes a detailed outline and a series of flowcharts that serve as the basis for the design example. The design example includes detailed design computations for the following bridge features: concrete deck, steel plate girder, bolted field splice, shear connectors, bearing stiffeners, welded connections, elastomeric bearing, cantilever abutment and wingwall, hammerhead pier, and pile foundations. To make this reference user-friendly, the numbers and titles of the design steps are consistent between the detailed outline, the flowcharts, and the design example.In addition to design computations, the design example also includes many tables and figures to illustrate the various design procedures and many AASHTO references. AASHTO references are presented in a de dicated column in the right margin of each page, immediately adjacent to the corresponding design procedure. The design example also includes commentary to explain the design logic in a user-friendly way. Additionally, tip boxes are used throughout the design example computations to present useful information, common practices, and rules of thumb for the bridge designer.Tips do not explain what must be done based on the design specifications; rather, they present suggested alternatives for the designer to consider. A figure is generally provided at the end of each design step, summarizing the design results for that particular bridge element. The analysis that served as the basis for this design example was performed using the AASHTO Opis software. A sample input file and selected excerpts from the corresponding output file are included in this document. 17. Key Words 18. Distribution StatementBridge Design, Steel Girder, Load and Resistance Factor Design, LRFD, Concrete Deck, Bolte d Field Splice, Hammerhead Pier, Cantilever Abutment, Wingwall, Pile Foundation 19. Security Classif. (of this report) 20. Security Classif. (of this page) This report is available to the public from the National Technical Information Service in Springfield, Virginia 22161 and from the Superintendent of Documents, U. S. Government Printing Office, Washington, D. C. 20402. 21. No. of Pages 22. Price Unclassified Form DOT F 1700. 7 (8-72) Unclassified 644 Reproduction of completed page authorizedThis page intentionally left blank ACKNOWLEDGEMENTS We would like to express appreciation to the Illinois Department of Transportation, Washington State Department of Transportation, and Mr. Mike Grubb, BSDI, for providing expertise on the Technical Review Committee. We would also like to acknowledge the contributions of the following staff members at Michael Baker Jr. , Inc. : Tracey A. Anderson Jeffrey J. Campbell, P. E. James A. Duray, P. E. John A. Dziubek, P. E. David J. Foremsky, P. E. M aureen Kanfoush Herman Lee, P. E. Joseph R. McKool, P. E. Linda Montagna V. Nagaraj, P. E. Jorge M. Suarez, P. E.Scott D. Vannoy, P. E. Roy R. Weil Ruth J. Williams Table of Contents 1. Flowcharting Conventions 2. Flowcharts Main Flowchart Chart 1 – General Information Chart 2 – Concrete Deck Design Chart 3 – Steel Girder Design Chart 4 – Bolted Field Splice Design Chart 5 – Miscellaneous Steel Design Chart 6 – Bearing Design Chart 7 – Abutment and Wingwall Design Chart 8 – Pier Design Chart P – Pile Foundation Design Flowcharts Design Example for a Two-Span Bridge Flowcharting Conventions Start A process may have an entry point from more than one path. An arrowhead going into a process signifies an entry point.Unique sequence identifier Process description Reference Process A Design Step # Chart # or AASHTO Reference Unless the process is a decision, there is only one exit point. A line going out of a process signifies an exit point. Commentary to provide additional information about the decision or process. Flowchart reference or article in AASHTO LRFD Bridge Design Specifications Supplemental Information No Decision Yes Process Design Step # Chart # or AASHTO Reference Go to Other Flowchart FHWA LRFD Steel Design Example 1 Flowcharts Design Example for a Two-Span Bridge Main Flowchart Start Design Step 1General Information Chart 1 Design Step 2 Concrete Deck Design Chart 2 Design Step 3 Steel Girder Design Chart 3 Splices are generally required for girders that are too long to be transported to the bridge site in one piece. Yes No Are girder splices required? Design Step 4 Bolted Field Splice Design Chart 4 Design Step 5 Miscellaneous Steel Design Chart 5 Go to: A FHWA LRFD Steel Design Example 1 Flowcharts Design Example for a Two-Span Bridge Main Flowchart (Continued) A Design Step 6 Bearing Design Chart 6 Design Step 7 Abutment and Wingwall Design Chart 7 Design Step 8 Pier Design Chart 8 Des ign Step 9Miscellaneous Design Chart 9 Design Step 10 Special Provisions and Cost Estimate Chart 10 Design Completed Note: Design Step P is used for pile foundation design for the abutments, wingwalls, or piers. FHWA LRFD Steel Design Example 2 Flowcharts Design Example for a Two-Span Bridge General Information Flowchart Chart 1 Start Start Design Step 1 General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 2 Design Step 1. 1 Obtain Design Criteria Design Step 3 No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 BearingDesign Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Includes: Governing specifications, codes, and standards Design methodology Live load requirements Bridge width requirements Clearance requirements Bridge length requirements Material properties F uture wearing surface Load modifiers Design Step 5 Design Step 6 Design Step 1. 2 Obtain Geometry Requirements Design Step 7 Includes: Horizontal curve data and alignment Vertical curve data and grades Design Step 8 Design Step 9 Yes Design Step 10Does client require a Span Arrangement Study? No Includes: Select bridge type Determine span arrangement Determine substructure locations Compute span lengths Check horizontal clearance Design Step 1. 3 Perform Span Arrangement Study Design Step 1. 3 Select Bridge Type and Develop Span Arrangement Go to: A FHWA LRFD Steel Design Example 1 Flowcharts Design Example for a Two-Span Bridge General Information Flowchart (Continued) Chart 1 Start Design Step 1 General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 A Design Step 2 Design Step 3 No Are girder splices required?Design Step 1. 4 Yes Obtain Geotechnical Recommendations Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bea ring Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 5 Includes: Boring logs Foundation type recommendations for all substructures Allowable bearing pressure Allowable settlement Overturning Sliding Allowable pile resistance (axial and lateral) Design Step 6 Design Step 7 Design Step 8 Yes Does client require a Type, Size and Location Study?No Design Step 9 Design Step 10 Includes: Select steel girder types Girder spacing Approximate girder depth Check vertical clearance Design Step 1. 5 Perform Type, Size and Location Study Design Step 1. 5 Determine Optimum Girder Configuration Design Step 1. 6 Plan for Bridge Aesthetics S2. 5. 5 Considerations include: Function Proportion Harmony Order and rhythm Contrast and texture Light and shadow Return to Main Flowchart FHWA LRFD Steel Design Example 2 Flowcharts Design Example for a Two-Span Bridge Concrete Deck De sign Flowchart Chart 2 Start Start General Information Chart 1 Design Step 1Design Step 2. 1 Obtain Design Criteria Design Step 2 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 3 Includes: Girder spacing Number of girders Top and bottom cover Concrete strength Reinforcing steel strength Concrete density Future wearing surface Concrete parapet properties Applicable load combinations Resistance factors To compute the effective span length, S, assume a girder top flange width that is conservatively smaller than anticipated. The deck overhang region is required to be designed to have a resistance larger than the actual resistance of the concrete parapet.Based on Design Steps 2. 3 and 2. 4 and based on client standards. No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions an d Cost Estimate Chart 10 Design Completed Design Step 2. 2 Determine Minimum Slab Thickness S2. 5. 2. 6. 3 & S9. 7. 1. 1 Design Step 5 Design Step 6 Design Step 2. 3 Determine Minimum Overhang Thickness S13. 7. 3. 1. 2 Design Step 7 Design Step 8 Design Step 9 Design Step 2. Select Slab and Overhang Thickness Design Step 10 Yes Equivalent Strip Method? (S4. 6. 2) No Other deck design methods are presented in S9. 7. Design Step 2. 5 Compute Dead Load Effects S3. 5. 1 & S3. 4. 1 Includes moments for component dead load (DC) and wearing surface dead load (DW). Go to: A FHWA LRFD Steel Design Example 1 Flowcharts Design Example for a Two-Span Bridge Concrete Deck Design Flowchart (Continued) Chart 2 A Start General Information Chart 1 Design Step 2. 6 Compute Live Load Effects S3. 6. 1. 3 & S3. 4. 1 Design Step 1 Design Step 2 Concrete Deck Design Chart 2Steel Girder Design Chart 3 Design Step 3 Design Step 2. 7 Compute Factored Positive and Negative Design Moments S4. 6. 2. 1 Considera tions include: Dynamic load allowance (S3. 6. 2. 1) Multiple presence factor (S3. 6. 1. 1. 2) AASHTO moment table for equivalent strip method (STable A4. 1-1) No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design CompletedDesign Step 2. 8 Design for Positive Flexure in Deck S5. 7. 3 Resistance factor for flexure is found in S5. 5. 4. 2. 1. See also S5. 7. 2. 2 and S5. 7. 3. 3. 1. Generally, the bottom transverse reinforcement in the deck is checked for crack control. The live load negative moment is calculated at the design section to the right and to the left of each interior girder, and the extreme value is applicable to all design sections (S4. 6. 2. 1. 1). Generally, the top transverse reinforcement in the deck is checked for crack control. Design Step 5 Design Step 6 Design Step 2. 9 Design Step 7Check for Positive Flexure Cracking under Service Limit State S5. 7. 3. 4 & S5. 7. 1 Design Step 8 Design Step 9 Design Step 2. 10 Design for Negative Flexure in Deck S4. 6. 2. 1 & S5. 7. 3 Design Step 10 Design Step 2. 11 Check for Negative Flexure Cracking under Service Limit State S5. 7. 3. 4 & S5. 7. 1 Design Step 2. 12 Design for Flexure in Deck Overhang S5. 7. 3. 4, S5. 7. 1 & SA13. 4 Go to: B FHWA LRFD Steel Design Example 2 Flowcharts Design Example for a Two-Span Bridge Concrete Deck Design Flowchart (Continued) Chart 2 For concrete parapets, the case of vertical collision never controls.B Design Case 1 Design Overhang for Horizontal Vehicular Collision Force SA13. 4. 1 Design Case 2 Design Overhang for Vertical Collision Force SA13. 4. 1 Design Case 3 Design Overhang for Dead Load and Live Load SA13. 4. 1 Check at Case Inside Face 1A of Parapet Check at Case Design 1B Section in Overhang Check at Case Design 1C Section in First S pan Check at Case Design 3A Section in Overhang Check at Case Design 3B Section in First Span As(Overhang) = maximum of the above five reinforcing steel areas Start General Information Chart 1 Design Step 1 Design Step 2 Concrete Deck Design Chart 2Steel Girder Design Chart 3 Yes Design Step 3 As(Overhang) > As(Deck)? No No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Use As(Overhang) in overhang. Use As(Deck) in overhang. Check for Cracking in Overhang under Service Limit State S5. 7. 3. 4 & S5. 7. 1 The overhang reinforcing steel must satisfy both the overhang requirements and the deck requirements.Design Step 5 Design Step 2. 13 Design Step 6 Does not control the design in most cases. Design Step 7 Design Step 8 Design Step 2. 14 Compute Ov erhang Cut-off Length Requirement S5. 11. 1. 2 Design Step 9 Design Step 10 Go to: C FHWA LRFD Steel Design Example 3 Flowcharts Design Example for a Two-Span Bridge Concrete Deck Design Flowchart (Continued) Chart 2 C Start General Information Chart 1 Design Step 2. 15 Compute Overhang Development Length S5. 11. 2 Appropriate correction factors must be included. Design Step 1 Design Step 2 Concrete Deck Design Chart 2 Steel Girder Design Chart 3Design Step 2. 16 Design Bottom Longitudinal Distribution Reinforcement S9. 7. 3. 2 Design Step 3 Compute Effective Span Length, S, in accordance with S9. 7. 2. 3. Based on temperature and shrinkage reinforcement requirements. No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 2. 17 Design Top Longitudinal Distribution Reinforcement S5. 0. 8. 2 Design Step 5 Design Step 6 Design Step 2. 18 Design Longitudinal Reinforcement over Piers Design Step 7 Design Step 8 Design Step 9 Yes Continuous steel girders? No Design Step 10 For simple span precast girders made continuous for live load, design top longitudinal reinforcement over piers according to S5. 14. 1. 2. 7. For continuous steel girders, design top longitudinal reinforcement over piers according to S6. 10. 3. 7. Design Step 2. 19 Draw Schematic of Final Concrete Deck Design Return to Main Flowchart FHWA LRFD Steel Design Example 4 FlowchartsDesign Example for a Two-Span Bridge Steel Girder Design Flowchart Chart 3 Start Includes project specific design criteria (such as span configuration, girder configuration, initial spacing of cross frames, material properties, and deck slab design) and design criteria from AASHTO (such as load factors, resistance factors, and multiple presence factors). Start General Information C hart 1 Concrete Deck Design Chart 2 Design Step 1 Design Step 3. 1 Obtain Design Criteria Design Step 2 Design Step 3 Steel Girder Design Chart 3 No Are girder splices required? Yes Design Step 4Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed A Design Step 3. 2 Select Trial Girder Section Design Step 5 Design Step 6 Design Step 7 Design Step 8 Design Step 9 Yes Composite section? No Considerations include: Sequence of loading (S6. 10. 3. 1. 1a) Effective flange width (S4. 6. 2. 6) Design Step 10 Design Step 3. 3 Compute Section Properties for Composite Girder S6. 10. 3. 1Design Step 3. 3 Compute Section Properties for Noncomposite Girder S6. 10. 3. 3 Go to: B FHWA LRFD Steel Design Example 1 Flowcharts Design Example for a Two-Span Bridge Steel Girder Design Flowchart (Continued) Chart 3 B Includes component dead load (DC) and wearing surface dead load (DW). Start General Information Chart 1 Concrete Deck Design Chart 2 Design Step 3. 4 Compute Dead Load Effects S3. 5. 1 Design Step 1 Design Step 2 Design Step 3 Steel Girder Design Chart 3 Design Step 3. 5 Compute Live Load Effects S3. 6. 1 Considerations include: LL distribution factors (S4. . 2. 2) Dynamic load allowance (S3. 6. 2. 1) Includes load factors and load combinations for strength, service, and fatigue limit states. Considerations include: General proportions (6. 10. 2. 1) Web slenderness (6. 10. 2. 2) Flange proportions (6. 10. 2. 3) Go to: A No Are girder splices required? Yes Design Step 4 Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 3. Combine Load Effects S3. 4. 1 Design Step 5 Design Step 6 Design Step 7 Design Step 3. 7 Check Section Proportion Limits S6. 10. 2 Design Step 8 Design Step 9 Design Step 10 Are section proportions adequate? Yes Go to: C No FHWA LRFD Steel Design Example 2 Flowcharts Design Example for a Two-Span Bridge Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Flowchart (Continued) Chart 3 Design Step 1 Design Step 2 C Design Step 3 Steel Girder Design Chart 3 No Are girder splices required? Yes No Composite section? Yes Design Step 4Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 5 Design Step 3. 8 Compute Plastic Moment Capacity S6. 10. 3. 1. 3 & Appendix A6. 1 Considerations include: Web slenderness Compression flange slenderness (N only) Compression flange bracing (N only) Ductility (P only) Plastic forces and neutral axis (P only) Des ign for Flexure Strength Limit State S6. 10. (Flexural resistance in terms of stress) Considerations include: Computations at end panels and interior panels for stiffened or partially stiffened girders Computation of shear resistance Check D/tw for shear Check web fatigue stress (S6. 10. 6. 4) Check handling requirements Check nominal shear resistance for constructability (S6. 10. 3. 2. 3) Design Step 6 Design Step 7 Design Step 8 Design Step 9 D Design Step 3. 9 Determine if Section is Compact or Noncompact S6. 10. 4. 1 Design Step 10 Yes Design for Flexure Strength Limit State S6. 10. 4 (Flexural resistance in terms of moment) Compact section? No Design Step 3. 10 Design Step 3. 0 Design Step 3. 11 Design for Shear S6. 10. 7 Note: P denotes Positive Flexure. N denotes Negative Flexure. Go to: E FHWA LRFD Steel Design Example 3 Flowcharts Design Example for a Two-Span Bridge Steel Girder Design Flowchart (Continued) Chart 3 E No Transverse intermediate stiffeners? If no stiffeners are used, then the girder must be designed for shear based on the use of an unstiffened web. Design includes: Select single-plate or double-plate Compute projecting width, moment of inertia, and area Check slenderness requirements (S6. 10. 8. 1. 2) Check stiffness requirements (S6. 10. 8. 1. 3) Check strength requirements (S6. 0. 8. 1. 4) If no longitudinal stiffeners are used, then the girder must be designed for shear based on the use of either an unstiffened or a transversely stiffened web, as applicable. Design includes: Determine required locations Select stiffener sizes Compute projecting width and moment of inertia Check slenderness requirements Check stiffness requirements Yes Start General Information Chart 1 Concrete Deck Design Chart 2 Design Step 1 Design Step 3. 12 Design Transverse Intermediate Stiffeners S6. 10. 8. 1 Design Step 2 Design Step 3 Steel Girder Design Chart 3 No Are girder splices required? Yes Design Step 4Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed No Longitudinal stiffeners? Design Step 5 Design Step 6 Yes Design Step 7 Design Step 8 Design Step 3. 13 Design Longitudinal Stiffeners S6. 10. 8. 3 Design Step 9 Design Step 10 Go to: F FHWA LRFD Steel Design Example 4 Flowcharts Design Example for a Two-Span Bridge Steel Girder Design Flowchart (Continued) Chart 3 F No Is stiffened web most cost effective? Yes Use unstiffened web in steel girder design.Use stiffened web in steel girder design. Start General Information Chart 1 Concrete Deck Design Chart 2 Design Step 1 Design Step 2 Design Step 3. 14 Design Step 3 Steel Girder Design Chart 3 Design for Flexure Fatigue and Fracture Limit State S6. 6. 1. 2 & S6. 10. 6 No Are girder splices required? Yes Check: Fatigue load (S3. 6. 1. 4) Load-induced fatigue (S6. 6. 1. 2) Fatigue requirements for we bs (S6. 10. 6) Distortion induced fatigue Fracture Compute: Live load deflection (optional) (S2. 5. 2. 6. 2) Permanent deflection (S6. 10. 5) Check: Web slenderness Compression flange slenderness Compression flange bracing ShearDesign Step 4 Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 5 Design Step 3. 15 Design for Flexure Service Limit State S2. 5. 2. 6. 2 & S6. 10. 5 Design Step 6 Design Step 7 Design Step 8 Design Step 3. 16 Design for Flexure Constructibility Check S6. 10. 3. 2 Design Step 9 Design Step 10 Go to: G FHWA LRFD Steel Design Example 5 Flowcharts Design Example for a Two-Span Bridge Steel Girder Design Flowchart (Continued) Chart 3 GStart General Information Chart 1 Concrete Deck Design Chart 2 Design Step 3. 17 Check Wind Effects on Girder Flanges S6. 10. 3. 5 Design Step 1 Refer to Design Step 3. 9 for determination of compact or noncompact section. Design Step 2 Design Step 3 Steel Girder Design Chart 3 No Are girder splices required? Yes Design Step 4 Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Have all positive and negative flexure design sections been checked?No Go to: D (and repeat flexural checks) Design Step 5 Yes Design Step 6 Design Step 7 Design Step 8 Were all specification checks satisfied, and is the girder optimized? No Go to: A Design Step 9 Design Step 10 Yes Design Step 3. 18 Draw Schematic of Final Steel Girder Design Return to Main Flowchart FHWA LRFD Steel Design Example 6 Flowcharts Design Example for a Two-Span Bridge Bolted Field Splice Design Flowchart Chart 4 Start Includes: Splice location Girder section properties Material and bo lt properties Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3Design Step 4. 1 Obtain Design Criteria Design Step 1 Design Step 2 Design Step 3 Design Step 4. 2 Select Girder Section as Basis for Field Splice Design S6. 13. 6. 1. 1 Design bolted field splice based on the smaller adjacent girder section (S6. 13. 6. 1. 1). No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Left Design Step 5 Which adjacent girder section is smaller? RightDesign Step 6 Design Step 7 Design Step 8 Design bolted field splice based on left adjacent girder section properties. Design bolted field splice based on right adjacent girder section properties. Design Step 9 Design Step 10 Design Step 4. 3 Compute Flange Splice Design Lo ads 6. 13. 6. 1. 4c Includes: Girder moments Strength stresses and forces Service stresses and forces Fatigue stresses and forces Controlling and noncontrolling flange Construction moments and shears Go to: A FHWA LRFD Steel Design Example 1 Flowcharts Design Example for a Two-Span Bridge Bolted Field Splice Design Flowchart (Continued) Chart 4Check: Yielding / fracture of splice plates Block shear rupture resistance (S6. 13. 4) Shear of flange bolts Slip resistance Minimum spacing (6. 13. 2. 6. 1) Maximum spacing for sealing (6. 13. 2. 6. 2) Maximum pitch for stitch bolts (6. 13. 2. 6. 3) Edge distance (6. 13. 2. 6. 6) Bearing at bolt holes (6. 13. 2. 9) Fatigue of splice plates (6. 6. 1) Control of permanent deflection (6. 10. 5. 2) A Design Step 4. 4 Design Bottom Flange Splice 6. 13. 6. 1. 4c Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 1 Design Step 2 Design Step 3 No Are girder splices required?Design Step 4. 5 Yes Desi gn Top Flange Splice S6. 13. 6. 1. 4c Check: Refer to Design Step 4. 4 Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 5 Design Step 6 Design Step 4. 6 Design Step 7 Compute Web Splice Design Loads S6. 13. 6. 1. 4b Design Step 8 Check: Girder shear forces Shear resistance for strength Web moments and horizontal force resultants for strength, service and fatigueDesign Step 9 Design Step 10 Go to: B FHWA LRFD Steel Design Example 2 Flowcharts Design Example for a Two-Span Bridge Bolted Field Splice Design Flowchart (Continued) Chart 4 B Check: Bolt shear strength Shear yielding of splice plate (6. 13. 5. 3) Fracture on the net section (6. 13. 4) Block shear rupture resistance (6. 13. 4) Flexural yielding of splice plates Bearing resistance (6. 13. 2. 9) Fatigue of spli ce plates (6. 6. 1. 2. 2) Both the top and bottom flange splices must be designed, and they are designed using the same procedures.Are both the top and bottom flange splice designs completed? No Go to: A Design Step 4. 7 Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 1 Design Web Splice S6. 13. 6. 1. 4b Design Step 2 Design Step 3 No Are girder splices required? Yes Design Step 4 Bolted Field Splice Design Chart 4 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 5 Design Step 6 Design Step 7Yes Design Step 8 Design Step 9 Design Step 10 Do all bolt patterns satisfy all specifications? No Go to: A Yes Design Step 4. 8 Draw Schematic of Final Bolted Field Splice Design Return to Main Flowchart FHWA LRFD Steel Design Example 3 Flowcharts Design Example for a Two-S pan Bridge Miscellaneous Steel Design Flowchart Chart 5 Start No Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Composite section? For a composite section, shear connectors are required to develop composite action between the steel girder and the concrete deck.Design includes: Shear connector details (type, length, diameter, transverse spacing, cover, penetration, and pitch) Design for fatigue resistance (S6. 10. 7. 4. 2) Check for strength limit state (positive and negative flexure regions) (S6. 10. 7. 4. 4) Design includes: Determine required locations (abutments and interior supports) Select stiffener sizes and arrangement Compute projecting width and effective section Check bearing resistance Check axial resistance Check slenderness requirements (S6. 9. 3) Check nominal compressive resistance (S6. 9. 2. 1 and S6. 9. 4. ) Design Step 1 Yes Design Step 2 Design Step 3 No Are girder splices required? Design Step 5. 1 Yes Design Shear Conn ectors S6. 10. 7. 4 Design Step 4 Bolted Field Splice Chart 4 Design Step 5 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 6 Design Step 7 Design Step 8 Design Step 9 Design Step 5. 2 Design Bearing Stiffeners S6. 10. 8. 2 Design Step 10 Go to: A FHWA LRFD Steel Design Example 1Flowcharts Design Example for a Two-Span Bridge Miscellaneous Steel Design Flowchart (Continued) Chart 5 A Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 1 Design Design Welded Connections Step 5. 3 S6. 13. 3 Design Step 2 Design Step 3 Design includes: Determine required locations Determine weld type Compute factored resistance (tension, compression, and shear) Check effective area (required and minimum) Check minimum effective length requirements To determine the need for diaphragms or cross frames, refer to S6. . 4. 1. No Are girder splices required? Yes Design Step 4 Bolted Field Splice Chart 4 No Are diaphragms or cross frames required? Design Step 5 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design Step 6 Yes Design Step 7 Design Step 8 Design Step 9 Design Step 10 Design Step 5. 4 Design Cross-frames S6. 7. 4 Go to: BDesign includes: Obtain required locations and spacing (determined during girder design) Design cross frames over supports and intermediate cross frames Check transfer of lateral wind loads Check stability of girder compression flanges during erection Check distribution of vertical loads applied to structure Design cross frame members Design connections FHWA LRFD Steel Design Example 2 Flowcharts Design Example for a Two-Span Bridge Miscellaneous Steel Design Flowchart (Continued) C hart 5 B Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 1 No Is lateral bracing required?To determine the need for lateral bracing, refer to S6. 7. 5. 1. Design Step 2 Design Step 3 Yes No Are girder splices required? Yes Design Step 4 Bolted Field Splice Chart 4 Design Step 5. 5 Design Lateral Bracing S6. 7. 5 Design Step 5 Miscellaneous Steel Design Chart 5 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design Completed Design includes: Check transfer of lateral wind loads Check control of deformation during erection and placement of deck Design bracing members Design connections Design Step 6Design Step 7 Design Step 8 Design Step 9 Design Step 5. 6 Compute Girder Camber S6. 7. 2 Design Step 10 Return to Main Flowchart Compute the following camber components: Camber due to dead load of structural steel Camber due to de ad load of concrete deck Camber due to superimposed dead load Camber due to vertical profile Residual camber (if any) Total camber FHWA LRFD Steel Design Example 3 Flowcharts Design Example for a Two-Span Bridge Bearing Design Flowchart Chart 6 Start Includes: Movement (longitudinal and transverse) Rotation (longitudinal, transverse, and vertical) Loads (longitudinal, transverse, and vertical)Start General Information Chart 1 Concrete Deck Design Chart 2 Steel Girder Design Chart 3 Design Step 6. 1 Obtain Design Criteria Design Step 1 Design Step 2 Design Step 3 No Are girder splices required? Yes Design Step 6. 2 Select Optimum Bearing Type S14. 6. 2 See list of bearing types and selection criteria in AASHTO Table 14. 6. 2-1. Design Step 4 Bolted Field Splice Chart 4 Miscellaneous Steel Design Chart 5 Design Step 5 Design Step 6 Bearing Design Chart 6 Abutment and Wingwall Design Chart 7 Pier Design Chart 8 Miscellaneous Design Chart 9 Special Provisions and Cost Estimate Chart 10 Design CompletedSteelreinforced elastomeric bearing? No Design selected bearing type in accordance with S14. 7. Includes: Pad length Pad width Thickness of elastomeric layers Number of steel reinforcement layers Thickness of steel reinforcement layers Edge distance Material properties Method A usually results in a bearing with a lower capacity than Method B. However, Method B requires additional testing and quality control (SC14. 7. 5. 1). Note: Method A is described in S14. 7. 6. Method B is described in S14. 7. 5. Design Step 7 Yes Design Step 8 Design Step 9 A

Comparing Medieval Art to Renaissance Art Essay

Medieval art period Medieval art covers a large scope of time. The period covered over 1000 years of art in Europe, Middle East and North Africa. The period was characterized by major art movements based on national art and regional art. There was also the aspect of revivals and artists crafts. Art historians have been successful in classifying medieval art into major periods and styles. This is often characterized with significant difficulty. The major periods of art in medieval period include, the early Christian art, the migration period art, the insular art, the Pre Romanesque art, and lastly the Romanesque art. Gothic art was also a prominent period on medieval art. In addition to these periods, each region which later became nations had its own distinct artistic style. Medieval art was basically produced in a large array of media (Veronica, 2008). The works have remained significant and large in number. They include illuminated manuscripts, stained glass, sculptures and mosaics. Paintings were als o a common occurrence during this period. Historians have pointed out that medieval art in Europe grew as a result of artistic heritage that highly influenced by the Roman Empire. There is also an influence of iconographic traditions in this art period. It has been noted that these artistic source we mixed with what warfare to as barbarian artistic culture of northern Europe to provide excellent pieces of art. Byzantine art was one of the most influential arts during medieval time. This art form was basically influence by the Byzantine Empire and went on to be accepted in major areas. From the period of the late antique in the medieval period, there emerged the Byzantine Art (Veronica, 2008). Although it basically originated from the catholic Europe, the art was embraced by all as a result of its originality. During the period of 730 to 843, there were a large number of icons that were destroyed and therefore very little remain today to present the originality of this era in medieval art. From the medieval eras, there came prominent artist by the name of Michelangelo di Lodovico Buonarroti, commonly known as Michelangelo. The most famous piece by Michelangelo was his art work done on the Sistine Chapel in Rome: the scenes from Genesis on the ceiling and The Last Judgment in the altar wall. His works were inspired by the developments of the time. His works encompassed rhythm and contrast in a way that brought out the basic details of the artistic works. He used dull colors to reflect his somber mood while also embracing balance as a way of inspiring the generations. Most of his notable artistic works were influenced by color and balance. He used these two aspects of art to bearing out a message through his works. There is a major understanding the medieval art period was the real cause for the developments in the renaissance period (Lawrence, 2007). It is also argued by historians that as a result of the best steps taken by artists of the medieval period especially the late medieval period, the artists of pre renaissance period were able to build their trade. The argument is informed by the fact that during the late medieval period, there were early renaissance period artistic representations that were present. There is the basic understanding that the two periods ran concurrently for a certain period of time before they partied ways. The later medieval period gave rise to the early renaissance period. Renaissance Art Renaissance Art period is conceivably one of the utmost celebrated art periods in the history of mankind. The period was characterized by a wide array of disincentive artistic talent that put paint to work producing excellent results. Some of the notable artists of this period include Leonardo da Vinci, Robert camping, Santos Botticelli, Raphael and titian. There have been arguments in the artistic historical world whether the period was the best period in the history of art. Renaissance art originated from the renaissance period (Johnson, 2009). According to art historians, the period was characterized by sculpture, painting and decorative arts that formed the renaissance period in history. The period emerged with its distinct style in about 1400 parallel to developments in philosophical, literary and musical industries. The period art is referred to as the rebirth of ancient traditions and has its roots in the classical antiquity. The period has transformed by the absorption of recent developments to give a different approach to art in the northern Europe through application of contemporary scientific knowledge. The renaissance art period was also characterized by the renaissance humanist philosophy that spread throughout the western history. This affects both the artists and the patrons of their works. There was a development of new techniques and also new artistic sensibilities. The renaissance period was basically the time from medieval period to early modern age. One of the most respected pieces of art of this period was the Last Supper by Leonardo da Vinci. The artistic representation of the last supper has been addressed as one of the unsurpassed in the history of mankind. This has given Leonardo da Vinci an upper hand among his peers of the renaissance period. The absorption of recent developments in the early modern age characterized a radical shift in renaissance art. It is believed that this change of tact formed the basis for the new approach on the aspect of artistic representation of ideas. Historical facts show that early renaissance art was infarct produced parallel with the late medieval art. By 1500, the renaissance part was declared the better of the time thereby prevailing over the late medieval art. The late renaissance art was later called mannerisms and developed to become a fully fledge artists pattern. This pattern took distinctive attributes of each region and merged them together (Johnson, 2009). The proto renaissance period was basically I Italy and ran from 1280 to 1400. By the late 14th century, Italy had already been introduced to the new version of the renaissance era. That period was characte4rise by outstanding arts like the sculpture of Nicola Pisano and also Giovanna Pisano. There was a major development in figurative painting where precedence was set on naturalistic and three dimensional approaches that classified the classics it into different categories (Charles, 2009). The period was viewed as aim of classifying and rebirth of art from different perspectives. Leonardo da Vinci work captured all the major aspect of art including color, balance rhythm and balance. He used bright colors in his trademark works including the Last Supper. The use of bright colors was restricted to the foreground on f the pictures while the background was characterized by dark colors. In conclusion, there was an aspect of balance in both periods as they seek to balance different occasions with specific colors. There is a major understanding that both works have a similar approach to balance. The use of rhythm in the latest installations of these works in the periods offered a new way of understanding art. The two periods have emphasized on the need to build themes based on the current issues of the time. References Charles, A, 2009, ‘Renaissance Art’, Washington: Parkstone International Johnson, A, 2009, ‘Renaissance Art: A Very Short Introduction’, Washington: Oxford University Press Lawrence, N, 2007, ‘Early Medieval Art’, Washington: Oxford University Press Veronica, A, 2008, ‘Medieval Art’, Washington: Oxford University Press

Relationship Between Homeostasis Maintenance And The Body...

In this assignment I will be discussing homeostatic principals and discussing the relationship between homeostasis maintenance specifically physiologic growth and the body and how homeostatic challenges are expressed in the body. Homeostasis refers to metabolic balance maintained by several processes. The human body has several examples of homeostasis. Homeostasis is maintained within the body by a complex series of organs and organ systems, they work together to keep the body functioning correctly, when the equilibrium within the body is maintained, homeostasis occurs, the body maintains a steady internal environment for proper functioning. There 2 feedback loops positive and negative positive feedback, almost all homeostatic control†¦show more content†¦Insulin reduces glucose concentration, while cortisol and catecholamine and glucagon increase glucose concentration. The bones and teeth contain 99 %of the calcium in the body, the other 1% circulates in the blood. Too much calcium in the blood and too little calcium in the blood both have negative effects. If blood calcium levels decrease too much, the parathyroid glands activate their calcium-sensing receptors and release parathyroid hormone. PTH signals the bones to release calcium to increase the amount of calcium in the bloodstream. If calcium levels increase too much, the thyroid gland releases calcitonin and fixes more calcium in the bones. This decreases the amount of calcium in the blood. The body has to maintain a constant internal environment, which means it must regulate the loss and gain of fluid. Hormones help to regulate this balance by causing the excretion or retention of fluid. If the body does not have enough fluid, antidiuretic hormone signals the kidneys to retain fluid and decrease urine output. If the body has too much fluid, it suppresses aldosterone and signals the excretion of more urine. Another one of the most common examples of homeostasis in humans is the regulation of body temperature. Normal body temperature is 37 degrees C or. Temperatures high above or below these normal levels cause serious complications. Muscle failure occurs at a temperature of 28 degrees C. At 33 degrees C, loss ofShow MoreRelatedEssay on Understanding Change15189 Words   |  61 Pagesknowledge and practice of organizational change are influenced by assumptions derived from the models or perspectives we use. For example, if we regard change as a matter of systemic structural arrangements we can make in an organization, then we can see how the analogy of organism or biological system helps to inform our judgements. Because perspectives offer ways of seeing, they will inevitably organize our perception in line with the dominant analogy used. However, analogies are only partial knowledge