Juned Khan, Dr. Raghvendra Singh
Volume 6, Issue 3 2022
Page: 12-25
Bridge plays very important role in transportation, whether it is Highway Bridge or Footbridge Bridge or combination of both. There are so many types of bridges such as arch bridge, beam Bridge, truss bridge, cantilever bridge, suspension bridge, etc. But most of the footbridge bridges are constructed with the help of steel truss. Truss structure comprise of members that are joined to make a rigid frame of steel. The individual members of a truss bridge act as the load carrying components of the system, they are arranged in the form of triangle and because of this when load is applied on the truss there is only axial force (tension or compression) act on the members of the truss. Some of these bridges are situated in earthquake prone area, so it is very important to analyses different sections of truss by considering seismic forces and live load and select an appropriate section. For this dissertation 3 different type of sections are used (i.e. Warren truss, Pratt truss and Howe truss). Two span lengths are considered i.e. 50 meter and 100 meter with height of 7 meter and 6 meter width, simply supported at ends. the walk way bridge is being analyzed. The analysis has been done using STAAD. Pro V8i. The result has been interpreted by analyzing node displacements, beam end forces and support reactions.
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