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首页> 外文期刊>International journal of structural stability and dynamics >PERFORMANCE VARIATIONS OF A CABLE-STAYED BRIDGE WITH DAMAGED CABLES
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PERFORMANCE VARIATIONS OF A CABLE-STAYED BRIDGE WITH DAMAGED CABLES

机译：含受损电缆的电缆固定桥的性能变化

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摘要

A cable-stayed bridge model was made based on the design drawings of Shandong Binzhou Yellow River Highway Bridge (BZB) and detailed model tests were conducted. In the tests, the cable damage effects on the loading behavior and dynamic performance of the bridge model were studied by considering different cable damages' locations, different numbers of damaged cables, and different damaged levels of cables etc. The experimental results revealed that the cable damages may significantly affect the internal forces of other cables and the stress distributions of the girders; however, they have less influence on the natural frequencies of the bridge model. In parallel with the model tests, a finite element model of the bridge structure has been established. Numerical analysis for the bridge model with cable damages was carried out to validate the experimental results and explain the phenomena observed in the model tests.
机译：根据山东滨州黄河公路大桥的设计图，制作了斜拉桥模型，并进行了详细的模型试验。在测试中，通过考虑不同的电缆损伤位置，不同的电缆损伤数量以及电缆的损伤程度等，研究了电缆损伤对桥梁模型的荷载行为和动力性能的影响。实验结果表明，电缆损坏可能会严重影响其他电缆的内力和大梁的应力分布;但是，它们对电桥模型的固有频率影响较小。与模型测试同时，建立了桥梁结构的有限元模型。对具有电缆损伤的桥梁模型进行了数值分析，以验证实验结果并解释模型试验中观察到的现象。

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