（大连理工大学土木工程学院结构工程研究所， 大连 116024）

［摘要］简述了恢复力模型的主要特征即刚度退化、强度退化以及捏缩效应，分析了相关的影响因素。详细介绍了几种典型的恢复力模型：能够综合考虑结构构件抗震性能且在抗震研究及设计中得到广泛应用的三参数模型和Pivot模型；从耗能角度全面考虑构件从开始受荷至倒塌的过程中所有重要循环退化性能的Ibarra滞回退化模型。分析了模型的主要特点。为研究人员在结构抗震分析中选择合理构件的恢复力模型提供了资料。

［关键词］钢筋混凝土构件； 恢复力模型； 滞回规则； 骨架线； 研究进展

中图分类号：TU357-3文献标识码：A文章编号：1002-848X(2017)09-0065-06

Reviews of restoring force model for reinforced concrete members (Ⅰ)

Zhang Yanqing, Gong Jinxin, Han Shi

(Structural Engineering Institute, Department of Civil Engineering, Dalian University of Technology, Dalian 116024， China)

Abstract:Three main features of restoring force model were briefly introduced including stiffness degradation, strength deterioration and pinching effect, and relevant influential factors were analyzed as well. Details of several typical restoring force models were descripted, including three-parameter model and Pivot model which can consider comprehensive seismic performance of members in RC structures and were widely applied in seismic research and design, Ibarra hysteretic degradation model which considers all the important cyclic degradation performance of members in the process from the start of loading to collapse from the viewpoint of energy dissipation. Main features of these models were also analyzed. The research provides a reference for researchers to select reasonable restoring force model for members in the seismic analysis of structures.

Keywords:reinforced concrete member; restoring force model;  hysteretic rule; backbone curve; research development

*国家自然科学基金资助项目（51278081,51478077）。

作者简介：张艳青，博士研究生, Email:zhangyanqingtaian@163.com。