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密肋复合墙体的地震损伤极限概率分析

, PP. 123-130

Keywords: 密肋复合墙体,性能水平,损伤模型,损伤指数,概率特性

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Abstract:

密肋复合墙体是密肋壁板结构体系的主要承载构件,本文根据32块密肋复合墙体在单调及低周往复循环荷载作用下的试验结果,结合我国现行规范的目标性能,提出了针对密肋复合墙体的三个损伤性能水平及相应的量化参数,研究了这种新型墙体的损伤模型及各性能水平的允许极限破坏指标的概率特性.结果表明,采用四种地震损伤模型计算的墙体屈服、极限、破坏状态的损伤指数,在给定的显著性水平下分别服从正态分布、对数正态分布或极值Ⅰ型分布,并得到了分布的统计参数,可为该类墙体基于损伤性能的可靠度分析提供依据和参考.

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