HRB400级钢筋混凝土柱损伤的评价  

Evaluation of damage to HRB400 grade reinforced concrete columns

作　　者：王全凤[1] 刘良林[1] 沈章春[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《地震工程与工程振动》2009年第2期173-178,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50578066)

摘　　要：针对当前典型的损伤模型存在一定程度上的缺陷,提出一个基于弹性变形能形式的损伤评价模型。该模型将过程量转化为状态量,考虑了滞回过程中构件位移与刚度退化的影响。通过对滞回过程进行简化与等效,使得地震作用计算变得贴近实际情况。通过四个HRB400级钢筋混凝土柱破坏性试验数据的分析,验证了本文提出的模型的正确性与合理性。Aiming at some defects in the typical damage model, a new evaluation model of the seismic damage based on the form of elastic deformation energy is proposed in this paper. The process state is changed into the static one in the new damage model, and the effects of displacements and the stiffness degradation of four columns are taken into account. We may simplify the hysteretic process in the new model to make the seismic action calculation close to the factual circumstance. According to the results based on the destructive test of four HRB400 grade reinforced concrete columns, it is proved that the new model is correct and rational.

关 键 词：HRB400级钢筋混凝土 滞回曲线 损伤模型 损伤评价 

分 类 号：TU317.1[建筑科学—结构工程] TU375.4