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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >Ultimate behavior of corrugate steel web bridges with tapered cross-section
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Ultimate behavior of corrugate steel web bridges with tapered cross-section

机译：锥形截面波纹钢腹板的极限性能

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摘要

This paper presents ultimate bending behavior of corrugate web girder with longitudinally tapered cross-section. Two bending tests were conducted, changing the tapered angle of compressive flange in order to investigate load-carrying rate of web's shear force. Both test girders were collapsed by shear buckling of the web, which cause cracks of pre-stressed concrete flange. From the tests, following conclusions were obtained: (1) Shear stress in the corrugate steel web is distributed almost uniformly in vertical direction at every cross-section, even though the cross-section is in the tapered region. (2) Since the inclined PC flange carries shear force according to the slope, the shear force carried by corrugate web decreases, and the steeper PC flange makes shear force of the web smaller.
机译：本文介绍了具有纵向锥形横截面的波纹腹板梁的极限弯曲行为。进行了两次弯曲试验，改变了压缩法兰的锥角，以研究腹板剪切力的承载率。腹板的剪切屈曲使两个测试梁均塌陷，这会导致预应力混凝土法兰破裂。从测试中得出以下结论：（1）即使横截面处于锥形区域，波纹钢腹板中的剪应力在垂直方向上也几乎均匀地分布在每个横截面上。 （2）由于倾斜的PC法兰根据其斜率承载剪切力，因此波纹腹板所承受的剪切力减小，而PC法兰越陡，腹板的剪切力就越小。

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