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汶川地震重灾区典型钢筋混凝土框架结构震害现象

Keywords: 汶川地震,钢筋混凝土框架结构,震害,倒塌,抗震构造措施

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Abstract:

介绍了5·12四川汶川地震近震源区钢筋混凝土框架结构的震害现象,从房屋整体跨塌、房屋整体严重歪斜、房屋部分集中垮塌、房屋部分楼层垮塌、房屋底层侧移过大等方面总结了震害现象,从剪切、剪压、压屈、压弯、塑性铰等破坏方面分析了梁柱震害现象.从结构平立面布置、结构体系和结构构件等方面初步分析了钢筋混土框架结构破坏的主要原因.

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