Bridge Girders with Corrugated Webs

9634570 Elgaaly梁的经济设计通常需要薄腹板。 使用波纹腹板是一种可能的方法，可以在不使用加劲肋的情况下获得足够的面外刚度。 主要研究者的报告总结了一个研究项目的结果，以调查静态载荷下波纹腹板梁的行为已经完成。 本计画将探讨波纹腹板梁在重复荷载作用下的行为。 有限试验的初步结果表明，波纹腹板梁的疲劳强度高于常规加劲梁。 本项目将确定波纹腹板桥梁在重复荷载作用下的行为，并确定此类桥梁的疲劳强度。 在静载荷作用下的最佳形状可能不是在重复载荷作用下的最佳形状。 ***

9634570 Elgaaly Economical design of girders normally requires thin webs. The use of corrugated webs is a possible way of achieving adequate out-of-plane stiffness without recourse to using stiffeners. A report by the Principal Investigator summarizing the results from a research project, to investigate the behavior of beams with corrugated webs under static loading has been completed. This project will investigate the behavior of girders with corrugated webs under repeated loading. Preliminary results from very limited tests indicate that the fatigue strength for the girders with corrugated webs can be higher than for conventionally stiffened girders. This project will determine the behavior of bridge girders with corrugated webs under repeated loading and establish the fatigue strength for such girders. The optimum shape of the corrugation under static loading may not be the optimum shape under repeated loading. ***