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（1 江蘇科技大學(xué)船舶與建筑工程學(xué)院， 張家港 215600；2 東南大學(xué)混凝土及預(yù)應(yīng)力混凝土結(jié)構(gòu)教育部重點(diǎn)實(shí)驗(yàn)室，南京 210096）

［摘要］為了研究鋼筋混凝土柱-鋼梁混合結(jié)構(gòu)邊節(jié)點(diǎn)的損傷模型，對(duì)比了常用的修正的Park-Ang模型和基于剛度的非累積損傷指數(shù)模型，設(shè)計(jì)了鋼筋混凝土柱-鋼梁混合結(jié)構(gòu)邊節(jié)點(diǎn)組合件，通過(guò)低周反復(fù)荷載試驗(yàn)進(jìn)行地震損傷研究。結(jié)合試驗(yàn)結(jié)果，對(duì)鋼筋混凝土柱-鋼梁混合結(jié)構(gòu)邊節(jié)點(diǎn)的損傷模型進(jìn)行了對(duì)比分析。研究表明，以鋼梁彎曲破壞為主的鋼筋混凝土柱-鋼梁混合結(jié)構(gòu)邊節(jié)點(diǎn)基于剛度的非累積損傷指數(shù)模型模擬結(jié)果與試驗(yàn)結(jié)果符合較好；當(dāng)滯回耗能因子β取0.05時(shí)，修正的Park-Ang模型也能較好地評(píng)價(jià)節(jié)點(diǎn)試件的損傷情況。

［關(guān)鍵詞］鋼筋混凝土柱-鋼梁; 混合節(jié)點(diǎn); 抗震性能; 地震損傷分析

中圖分類號(hào)：TU398      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)06-0070-04

Damage model study of single-sided joint of the RC column-steel beam hybrid structure

Zhang Yibao1, Zhou Zhibin1, Pan Zhihong1, Zhu Yanzhang1, Li Aiqun2

 (1 School of Naval Architecture and Architectural Engineering, Jiangsu University of Science and Technology, Zhangjiagang 215600, China; 2 Key Laboratory of C & PC Structures, Ministry of Education, Southeast University, Nanjing 210096, China)

Abstract: In order to study the damage model of single-sided joint of the RC column-steel beam hybrid structure, commonly-used modified Park-Ang model and stiffness-based non-cumulative damage index model were compared. The single-sided joint specimen of the RC column-steel beam hybrid structure was designed to carry out seismic damage study through low cyclic loading test. Damage models of single-sided joint of the RC column-steel beam, hybrid structure were compared based on the test results. The results indicate that stiffness-based non-cumulative damage index model are in good agreement with the experimental results for such single-sided joint of the RC column-steel beam, hybrid structure that is mainly suffered steel beam bending failure. When hysteretic energy factor β is 0.05, the modified Park-Ang model can evaluate the damage of joint specimen effectively.

Keywords: RC column-steel beam; hybrid joint; seismic performance; seismic damage analysis

*中鐵集團(tuán)科研項(xiàng)目，江蘇省研究生科研創(chuàng)新計(jì)劃項(xiàng)目（CXLX13_709），江蘇科技大學(xué)大學(xué)生創(chuàng)新計(jì)劃項(xiàng)目。

作者簡(jiǎn)介：張義保,碩士研究生,Email:y.b.zhang@hotmail.com。

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