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.
出处
《地震工程与工程振动》
CSCD
北大核心
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)
