Q1 (a) During construction of a highway bridge, the main girders as shown in Figure Q1(a) are cantilevered outward from one pier toward the next. Each girder has a cantilever length of 45 m and an I-shaped cross section with dimensions shown in the Figure Q1(a). The load on each girder (during construction) is assumed to be 9.1 kN/m, which includes the weight of the girder. (Notice that there are four girders used in the construction of the bridge). Determine the maximum bending stress in a girder due to this load.

Q1 (a) During construction of a highway bridge, the main girders as shown in Figure Q1(a) are cantilevered outward from one pier toward the next. Each girder has a cantilever length of 45 m and an I-shaped cross section with dimensions shown in the Figure Q1(a). The load on each girder (during construction) is assumed to be 9.1 kN/m, which includes the weight of the girder. (Notice that there are four girders used in the construction of the bridge). Determine the maximum bending stress in a girder due to this load.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter5: Stresses In Beams (basic Topics)

Section: Chapter Questions

Problem 5.5.7P: Each girder of the lift bridge (sec figure) is 180 ft long and simply supported at the ends. The...

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