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基于一榀型钢高强高性能混凝土(SRHSHPC)框架结构试件拟静力试验,观测了SRHSHPC框架结构在低周反复荷载作用下的裂缝开展和破坏模式,得到了框架结构的荷载位移曲线和骨架曲线,通过对试验现象的分析,揭示了SRHSHPC框架结构中梁、柱构件损伤与结构单层破坏之间的关系,引入节点位置权重系数,建立了结构单层地震损伤模型;通过对结构单层损伤与整体结构破坏之间的关系进行分析,建立了SRHSHPC框架结构地震损伤模型。计算结果与试验结果的对比表明:该文所建立的地震损伤模型能够较好地描述SRHSHPC框架结构的地震损伤演化过程与损伤程度,并反映构件损伤、局部结构损伤以及整体结构损伤三者之间迁移演化规律。
Based on the pseudo-static test of SRHSHPC frame structure specimens, the crack initiation and failure modes of SRHSHPC frame structure under cyclic low cyclic loading were observed. The load-displacement curves and skeleton curves of SRHSHPC frame structure were obtained. Through the analysis of the test phenomena, the relationship between the damage of beam and column members and the failure of single-layer structure in SRHSHPC frame was revealed. The weight coefficient of node position was introduced to establish the single-layer earthquake damage model. And the relationship between the damage of the whole structure and the earthquake damage model of SRHSHPC frame structure. The comparison between the calculated results and the experimental results shows that the earthquake damage model established in this paper can well describe the evolution and damage degree of seismic damage of the SRHSHPC frame structure and reflect the relationship between the structural damage, the local structural damage and the overall structural damage Migration and evolution rules.