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工程力学  2014 

钢筋混凝土框架-核心筒结构抗震性能研究

Keywords: 框架-核心筒结构,抗震性能,静力弹塑性分析,型钢混凝土柱,轻质楼盖系统

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Abstract:

按照我国现行规范对钢筋混凝土框架-核心筒结构进行设计,经过多方案比较,研究了结构楼盖自重、内筒内墙以及使用轻质楼盖系统、型钢混凝土柱等新型构件形式对整体结构质量、抗侧刚度等的影响,提出减轻结构自重是改善结构抗震能力的一个有效途径。采用Perform3D分析软件完成了该框架-核心筒结构的静力弹塑性推覆分析,研究了构件的塑性发展历程、构件变形和核心筒钢筋及混凝土纤维应变变化情况。结果表明:内筒连梁是框架-核心筒结构地震作用下的第一道抗震防线,内筒内墙的布置可增加结构的刚度并具有一定的耗能作用。

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