配置HRB500高強鋼筋框架與框剪結(jié)構(gòu)的抗震性能分析*
于敬海1,2，王少華1，趙珊珊3，謝劍1，丁永君2
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（1 天津大學(xué)建筑工程學(xué)院，天津 300072； 2 天津大學(xué)建筑設(shè)計研究院， 天津 300073；3 中國建筑科學(xué)研究院，北京 100013）
［摘要］對配置HRB500高強鋼筋作為受力鋼筋的框架與框剪結(jié)構(gòu)體系的抗震性能進(jìn)行了分析。應(yīng)用EPDA軟件對采用HRB500高強鋼筋代替HRB400高強鋼筋的若干工程實例進(jìn)行建模和彈塑性時程分析。對于配置HRB500高強鋼筋的結(jié)構(gòu)，在滿足軸壓比、構(gòu)造要求及常遇地震作用時的變形要求等條件下，結(jié)構(gòu)在罕遇地震作用下的最大層間位移角均小于規(guī)范要求，滿足罕遇地震作用下的變形要求，達(dá)到了“大震不倒”的第三水準(zhǔn)抗震設(shè)防目標(biāo)。分析結(jié)果可為使用HRB500高強鋼筋的結(jié)構(gòu)的安全性提供數(shù)據(jù)支持和技術(shù)依靠。［關(guān)鍵詞］HRB500高強鋼筋; 框架結(jié)構(gòu); 框剪結(jié)構(gòu); 抗震性能; 彈塑性時程分析中圖分類號：TU511.32，TU375 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)16-0071-06
Seismic performance analysis of frame and frame-shear wall structures using HRB500 high-strength rebarYu Jinghai1,2, Wang Shaohua1, Zhao Shanshan3, Xie Jian1, Ding Yongjun2(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China; 3 China Academy of Building Research, Beijing 100013, China)Abstract: The seismic performances of frame and frame-shear wall structural systems using HRB500 high-strength rebar as mechanical reinforcement were researched. EPDA software was applied to carry out the structure modeling and elastic-plastic time-history analysis of several engineering projects using HRB500 high-strength rebar instead of HRB400 rebar. The structure using HRB500 high-strength rebar satisfied the requirements of axial compression ratio, structural details and deformation requirement under the frequent earthquake condition. Considering the largest interlayer displacement angle under the rare earthquake fulfilling code requirement, the structure using HRB500 high-strength rebar satisfied the deformation requirement under the rare earthquake condition, and can achieve the third level seismic fortification goal of ″not collapse under the rare earthquake″. The analyses results can provide data support and technical support for the safety of the structure using HRB500 high-strength rebar.Keywords: HRB500 high-strength rebar; frame structure; frame-shear wall structure; seismic performance; elastic-plastic timehistory analysis
*天津市建委科技計劃項目（2012-24）。作者簡介：于敬海，研究員，博士生導(dǎo)師，Email：yjh300072@163.com。
