In a plate girder, the primary function of intermediate transverse web stiffeners is to:
Choose the correct answer
Increase the flange area
Increase the compression flange resistance to LTB
Prevent shear buckling of the web and improve shear capacity
Provide attachment points for secondary beams
Correct Answer
C. Prevent shear buckling of the web and improve shear capacity
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Transverse web stiffeners in plate girders divide the web into panels, increasing the elastic shear buckling capacity. They also help mobilize tension field action (post-buckling reserve). Longitudinal stiffeners improve bending capacity of deep webs.
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