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Bridge Design

Subject : engineering
Instructions:
  • Answer 47 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A bridge status assigned by the FHA under the National Bridge Inspection Standards. This type of bridge was built to the standards of the day but are not used today. These bridges are not considered inherently unsafe - but they may have lane widths -






2. Any member of a truss that is subjected to tensile forces






3. A heavy column of wood - steel - or reinforced concrete sunk vertically into a stream or riverbed to support a bridge (also commonly used for docks and wharves). When the stream or river is not stabe (soft silt or mud) pilings or groups of piles are






4. The bottom horizontal member of a truss. It extends the length of the deck truss but consists of shorter chord members spliced together






5. A plate that joins two chord members of a truss of that is used to extend the length of a member






6. Horizontal timbers or support at top and bottom between which vertical posts and diagonal braces are attached. (counter braces)






7. A structural member that projects beyond a supporting column or wall and is supported only at one end.






8. A welded truss perpendicular to the main trusses - used to support the deck






9. A vertical structure that supports the ends of a multispan superstructure at a location between abutments






10. The horizontal space between two supports of a structure






11. An individual angle - beam - plate - or built- up piece intended to become an integral part of an assembled frame or structure






12. The top horizontal member of a truss. the upper chord extends the length of the deck truss but it is made uyp of shorter chord memebers joined at nodes.






13. A bridge support bearing that accommodates thermal expansion and contraction of the superstructure through a rocking action






14. A retaining wall that supports the ends of a bridge. It may be built of stone - bedrock - wood - iron - or concrete.






15. A metal plate used to unite multiple structural members of a truss






16. A bridge typically composed of straight structural elements connected to form triangles.






17. The vertical member connecting the upper and lower chords at the like- numbered nodes.






18. A force that causes part of a material to slide past one another in opposite direction






19. In metal - a brittle cracking mechanism caused by repitive loading over time






20. A structural member connecting the upper and lower chords on the diagonal (as opposed to the vertical).






21. The vertical or upright supports.






22. A basic underlying element- infrastructure. The bottom or lowest part of a structure.






23. A device located between the bridge structure and a supporting pier or abutment






24. Bracing that spans between the main beams or girders of a bridge and assists in the distribution on loads






25. Frameworks of beams or girders used for support. A truss can be metal (steel) or of wooden construction.






26. Act of twisting; twisting of a body by two opposing forces






27. A horizontal structural member supporting verticle loads by bending






28. A bridge bearing comprising of a single roller or a group of rollers housed so as to permit longitun=dinal expansion or contraction






29. A beam aligned with the length of a span that supports the deck






30. A structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.






31. In a bridge truss - a diagonal timber or support that slants away from the midpoint of the bridge.






32. A metal fastener






33. The stress a bridge must carry in the form of cars - trucks - people - trains - etc. This weight or load is constantly changing. Hopefully a bridge will carry MANY times it's own weight.






34. A force that pushes or presses toward the center of an object or from the ends toward the middle of a structural member. Compression shortens the material. It is the opposite of tension.






35. A force that stretches or pulls on a material. Tension lengthens a material - any material.






36. The bridge structure that supports the superstructure and transfers loads from it to the ground or bedrock. the main components are abutments - piers - footings - and pilings.






37. A drain - pipe - or channel that allows water to pass under a road - railroad - or embankment.






38. A truss member that is subjected to compressive forces.






39. The bridge structure that receives and supports traffic loads and in turn transfers those loads to the substructure.






40. The vertical portion of an 'I' beam or girder






41. A loss of metal usually resulting from corrosion - that reduces the thickness of a steel bridge component






42. A structural steel member with two flat flanges separated by a horizontal steel plate (web) to form an 'H'






43. A connecting point where the upper and lower chords were joined






44. The weight of all columns - beams - floors - roadways - arches - and other components of a bridge. The weight of the bridge itself.






45. The stress above which permanent (plastic) deformation occurs






46. A steel member within a non - load- path- redundnat structure - the failure of which would cause a partial or total collapse of the structure






47. A structural steel shape - such as an angle - that is attached to a flat plate such as a gusset plate or the web of a member to add compression strength







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