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（大連理工大學(xué)土木工程學(xué)院結(jié)構(gòu)工程研究所， 大連 116024）

［摘要］簡(jiǎn)述了恢復(fù)力模型的主要特征即剛度退化、強(qiáng)度退化以及捏縮效應(yīng)，分析了相關(guān)的影響因素。詳細(xì)介紹了幾種典型的恢復(fù)力模型：能夠綜合考慮結(jié)構(gòu)構(gòu)件抗震性能且在抗震研究及設(shè)計(jì)中得到廣泛應(yīng)用的三參數(shù)模型和Pivot模型；從耗能角度全面考慮構(gòu)件從開(kāi)始受荷至倒塌的過(guò)程中所有重要循環(huán)退化性能的Ibarra滯回退化模型。分析了模型的主要特點(diǎn)。為研究人員在結(jié)構(gòu)抗震分析中選擇合理構(gòu)件的恢復(fù)力模型提供了資料。

［關(guān)鍵詞］鋼筋混凝土構(gòu)件； 恢復(fù)力模型； 滯回規(guī)則； 骨架線； 研究進(jìn)展

中圖分類(lèi)號(hào)：TU357-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

*國(guó)家自然科學(xué)基金資助項(xiàng)目（51278081,51478077）。

作者簡(jiǎn)介：張艷青，博士研究生, Email:zhangyanqingtaian@163.com。