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基于不同角部方案的RC结构抗连续倒塌设计

     

摘要

In order to study the anti-collapse performance of structure under different corner schemes,three different corner arrangement schemes of reinforced concrete(RC)frame shear structures were proposed,and the nonlinear analysis for the anti-continuous collapse performance under the occasional load action was carried out with the SAP2000 software. The results show that in a given situation, the internal force of column corner under no Rachel condition is higher than that under the Rachel condition. Under the situation of given load combination, when the Rachel treatment for the vertical load-bearing structure at the corner where the model 3 is adopted is given, the anti-continuous collapse performance of structures can be improved to a certain extent,which can achieve the anti-continuous collapse purpose of structures.%为了研究不同角部方案下的结构抗倒塌性能,提出了三种不同的钢筋混凝土框剪结构角部布置方案.应用SAP2000软件对偶然荷载作用下的抗连续倒塌性能进行了非线性分析.结果表明,在给定的有拉结情况比无拉结情况下角柱内力有所增大;在给定的荷载组合情况下,对角部竖向承重结构加以拉结(采用模型3的拉结方案),可在一定程度上增加结构抗连续倒塌性能,实现结构抗连续倒塌的目的.

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