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首页> 外文会议>Third International Conference on Coupled Instabilities in Metal Structures CIMS'2000, 3rd, Sep 21-23, 2000, Lisbon-Portugal >LATERAL TORSIONAL BUCKLING OF CHANNEL SHAPED BEAMS EXPERIMENTAL RESEARCH
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LATERAL TORSIONAL BUCKLING OF CHANNEL SHAPED BEAMS EXPERIMENTAL RESEARCH

机译：槽形梁的横向扭转屈曲试验研究

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Two sets of tests have been carried out on hot-rolled UPE-channel sections with parallel flanges. In the first set, the sections were loaded in bending about the major axis, with load applied at the shear centre, to determine the lateral torsional buckling load. In the second set the sections were loaded in the plane of the web which caused failure through bending and torsion. Much effort has been put into avoiding unwanted influences of load application. A test rig was designed such to minimise these effects. In the first set the members failed through sudden lateral torsional buckling. The predicted buckling resistance load according to Eurocode 3 is conservative when compared to the experimental failure load. In the second set the mebers failed gradually through bending and torsion. The failure loads were, as was expected, lower than in the first set of experiments.
机译：在带有平行法兰的热轧UPE通道型材上进行了两组测试。在第一组中，将截面绕主轴弯曲加载，并在剪切中心处施加载荷，以确定横向扭转屈曲载荷。在第二组中，将截面加载到腹板平面中，这会由于弯曲和扭转而导致失效。为了避免负载施加的不利影响，已经做了很多努力。设计了一个测试平台，以使这些影响最小化。在第一组中，构件由于突然的横向扭转屈曲而失败。与实验失效载荷相比，根据欧洲规范3预测的抗屈曲载荷是保守的。在第二组中，成员通过弯曲和扭转逐渐失败。正如预期的那样，失效载荷低于第一组实验。

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