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首页> 外文期刊>Thin-Walled Structures >Shake-table testing and numerical modelling of inelastic seismic response of semi-rigid cold-formed rack moment frames
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Shake-table testing and numerical modelling of inelastic seismic response of semi-rigid cold-formed rack moment frames

机译:半刚性冷弯型弯矩框架非弹性地震响应的振动台试验和数值模拟

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摘要

An experimental program consisting of quasi-static cyclic, pull-back and seismic shake table tests was conducted to examine the inelastic seismic response of cold-formed selective rack structures. Hysteretic response of the connectors and base plates are presented. In the seismic tests, racks could sustain up to 10% drifts without collapse. Pallet sliding was observed in the tests. A numerical model is proposed in OpenSees to predict the rack seismic response, including pallet sliding. It is used to study the response of 6-bay racks having 3-6 levels. Displacements are sensitive to assumed viscous damping, base plate properties and pallet sliding.
机译:进行了一个包括准静态循环试验,回拉试验和地震振动台试验的试验程序,以检验冷成型选择性机架结构的非弹性地震响应。给出了连接器和基板的滞后响应。在抗震测试中,齿条可以承受高达10%的漂移而不会崩溃。在测试中观察到托盘滑动。在OpenSees中提出了一个数值模型来预测机架的地震响应,包括托盘滑动。它用于研究具有3-6级水平的6托架机架的响应。位移对假定的粘性阻尼,底板特性和托盘滑动很敏感。

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