應(yīng)用HRB500級高強鋼筋的剪力墻與框筒結(jié)構(gòu)體系安全性分析*
于敬海1，王少華2，王燕3，謝劍2，丁永君1
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（1 天津大學(xué)建筑設(shè)計研究院， 天津 300073； 2 天津大學(xué)建筑工程學(xué)院， 天津 300072；3 天津市建筑設(shè)計院， 天津 300074）
［摘要］針對HRB500級高強鋼筋在剪力墻與框筒結(jié)構(gòu)體系中作為受力鋼筋的安全性進行了分析。采用HRB500級鋼筋代替HRB400級鋼筋，應(yīng)用EPDA軟件對兩個工程實例進行建模和彈塑性時程分析。分析結(jié)果表明，對于使用HRB500級高強鋼筋的結(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滿足變形要求，達到“大震不倒”的第三水準抗震設(shè)防目標。分析結(jié)果可為使用高強鋼筋的結(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級高強鋼筋; 剪力墻結(jié)構(gòu); 框筒結(jié)構(gòu); 彈塑性時程分析; 層間位移角; 安全性中圖分類號：TU511.32，TU375 文獻標識碼：A 文章編號：1002-848X(2015)22-0055-05
Analysis on safety of shear wall and framed-tube structure using HRB500 high-strength rebarYu Jinghai1, Wang Shaohua2, Wang Yan3, Xie Jian2, Ding Yongjun1(1 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China;2 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 3 Tianjin Architecture Design Institute, Tianjin 300074, China)Abstract: The safety of the HRB500 high-strength rebar used in shear wall and framed-tube structure was analyzed. Using HRB500 high-strength rebar instead of HRB400 ones, EPDA software was applied to establish the structure modeling of two engineering projects and elastic-plastic time-history analysis was carried out. The analysis results show that, for HRB500 high-strength rebar structure, in requirements of the requirement axial compression ratio and deformation requirement under frequent earthquake conditions, the largest interlayer displacement angle of the structure using HRB500 high-strength rebar under severe earthquake can satisfy the deformation requirement. It can achieve the third level seismic fortification goal. The analysis of the results can be used for the safety of the structure using HRB500 high-strength rebar to provide data support and technical depend.Keywords:HRB500 high-strength rebar; shear wall structure; framed-tube structure; elastic-plastic time-history analysis; interlayer displacement angle; safety
*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。
