. Physics Bridge Project 2013 Due May 21 Dimensions: Span at least 24 – 36 inches No wider than 8 inches (can be thinner) No taller than 18 inches Can have no more than 4 layers of lasagna noodles in one section The bridge must be self supporting and weigh less than 5 pounds. It must be designed to rest on lab stools that are placed a minimum of 22 inches for testing. Materials: store bought pasta Elmers Glue or hot glue Each bridge must hold a minimum of 5 lbs for 5 minutes. Bridge 500pts Multimedia Bridge Diary May 11 100pts Bridge Vocabulary Due May 7 100 pts Bridge Vocab Quiz on Study Island Load Combination Worksheet 100 pts 100 pts History of Bridges and Discussion Questions May 18 Or Produce a Physics Review Board West Point Bridge Schematic May 17 200 pts Bridge Schematic Due May 14th 100 pts 100 pts 10 pts Lowest Mass to load ratio Up to 5 pts Style of bridge beam = 0 pts Arched bridge = 2 pts Suspension bridge = 5 pts Helpful websites: http://quizlet.com/10902497/bridge-vocabulary-flash-cards/ http://service.columbia.k12.mo.us/15tla01/bridge-vocabulary/ http://www.jhu.edu/virtlab/bridge/truss.htm http://teachersites.schoolworld.com/webpages/JPrice2/files/Bridge%20Designs.pdf http://civil.camosun.bc.ca/spaghetti_bridge/Tips.htm http://www.historicbridges.org/ http://www.mnhs.org/places/nationalregister/bridges/nrwasb/sign.html http://www.mnhs.org/places/nationalregister/bridges/bridloc.html http://bridgehunter.com/ http://www.jillhubbard.com/engineering/bridge-design-lessons/truss-bridges-vocabulary http://www.cheney268.com/MSMath/Gillett/Bridges/resources.htm http://spaghettibridgedesigns.com/ http://www.ask.com/wiki/Bridge http://www.ask.com/web?l=sem&ifr=1&qsrc=999&ad=semA&an=google_s&q=spaghett i%20bridge%20designs&siteid=15148&o=15148&ar_uid=B690A10B-F850-405B-9836F7C71E6124C6&click_id=1811A9DB-9349-4CC4-A039-9FDDE0B2957C http://42explore.com/bridge.htm http://www.angelfire.com/vt2/techedquincy/pasta_bridge_project.pdf Vocabulary Abutment Arch bridge Beam bridge Cantilever bridge Cable stay bridge culvert Bridge cable Catenary Compression Dead load Deck Deck truss Expansion joint Girder Howe truss King truss Load Live load Thermal load Lattice Parapet Pier Pile or pillar Pony truss Pylon stay Shear torsion Through truss Trestle Truss Aqueduct Tension Cable-stayed bridge Pontoon bridge Bascule bridge Deck Multimedia Bridge Diary Instructions This must be a powerpoint featuring a minimum of 2 different bridges from the 7 types of bridges. Along with a picture of the 12 bridges you must include the following information. Location, designer, date the bridge was built, type of bridge, length Points will be given for completion of information and creativity on the powerpoint. Discussion Questions: 1. What forces act on bridges? 2. What are the strengths and weaknesses of each of the six types of bridges? 3. What situations would require each of the seven types of bridges? Arch Bridge- Truss Bridge- Cable-Stay Bridge- Suspension Bridge- Beam Bridge- Cantilever Bridge- Pontoon Bridges- 4. What is a draw-bridge? What are its advantages? 5. What are expansion joints and why are they used? 6. What was the Tay bridge disaster and why did it occur? 7. What is the longest bridge in the world and where is it located? 8. What was the first covered bridge in the United States and where was it located? 9. What is the longest bridge over water in the United States and where is it located? 10. What materials were the first bridges made of? 11. What are the most popular or efficient materials for modern bridge designs? 12. What material replaced wrought and cast iron in bridge building and why? 13. What is the longest cable-stayed bridge in the US and where is it located? 14. What is a girder bridge? An I beam? Why would you use them? 15. When and where was the first iron bridge built. 16. What is the longest bridge over ice covered water? Where is it located. 17. What is the world’s highest bridge and its location? 18. Describe the Royal Gorge Bridge. 19. What is the advantage of a truss bridge over a simple beam bridge? 20. What is resonance and what did it have to do with the Tacoma Narrows bridge? Explain. 21. Name and describe at least three types of loads that must be considered in bridge construction? Example: live load 22. Compare and contrast a beam bridge and an arch bridge. List 3 ways they are similar and three ways they are different. 24.Sketch the Howe Kingpost design, Through Truss, Deck Truss, Pratt truss. 23. There are 7 different types of loads that can affect a bridge. Name and describe each. ( goto Building Big-Forces Lab Site) Use this site for questions 26-30. http://www.pbs.org/wgbh/nova/bridge/build.html 26. How do the abutments support arch bridges? 27. Discuss the issues related to span in beam bridges. 28a. What are the advantages of using pre-stressed concrete? b. Briefly describe the elaboration process. 29. What are the main differences between Cable-Stayed bridges and Suspension bridges? 30. What are some of the advantages of Cable-Stayed bridges over other types of Suspension bridges?