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复合受力下内藏钢桁架混凝土核心筒扭转性能试验

Keywords: 钢筋混凝土,钢桁架,核心筒,偏心加载,扭转性能

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Abstract:

对2个1/6缩尺的核心简结构模型进行了偏心水平荷载作用下的低周反复荷载试验,一个为普通混凝土核心筒,另一个为内藏钢桁架混凝土组合核心筒.在试验基础上,对比分析了2个试件的抗扭承载力、扭转刚度、扭角延性、扭矩-扭角滞回特性、耗能能力以及破坏特征.试验研究表明,内藏钢桁架混凝土组合核心筒比普通混凝土核心筒抗扭能力显著提高.

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