太原国海广场主楼罕遇地震弹塑性时程分析
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（苏州工业园区设计研究院股份有限公司， 苏州 215021）［摘要］基于不同的阻尼模型、求解方式及分析假定，采用ABAQUS与MIDAS Building软件，对太原国海广场主楼进行了罕遇地震作用下的弹塑性时程分析，并参考相关科研成果，针对圆钢管混凝土柱中的核心混凝土，采用考虑约束效应的材料本构编写材料子程序，较真实地模拟圆钢管混凝土特性。分析表明，基于两种软件的计算结果在损伤程度上存在差异，但趋势基本一致，结构最大弹塑性层间位移角满足规范要求，构件塑性损伤满足预设抗震性能目标，分析结果可为优化结构设计与加强薄弱部位提供指导依据。［关键词］超限高层; 弹塑性; 基于性能; 罕遇地震中图分类号：TU973.3+1文献标识码：A文章编号：1002-848X(2014)21-0042-05Elastic-plastic time-history analysis of the main building of Guohai Plaza in Taiyuan under rare earthquakeLu Jianglong, Yang Lülei, Gong Minfeng, Zhu Xunyan, Zhang Jin(Suzhou Industrial Park Design & Research Institute Co., Ltd., Suzhou 215021, China)Abstract: The elastic-plastic time-history analysis of the main building of Guohai Plaza in Taiyuan under rare earthquake was carried out by programs of ABAQUS and MIDAS Building based on different damper models, solving methods and analysis assumptions. Based on relevant scientific researches, material subroutines were compiled with the concrete constitutive relation considering the constrain effect to simulate the core concrete in concrete filled circular steel tube column accurately. Analysis results show that the calculation results of damage degree based on two programs exist differences but the trends are identical. The maximum elastic-plastic story drift is within the limit of codes. The plastic damage of the structure can meet the requirements of expected performance-based seismic design objectives. The analyses can guide the structural optimization design and weak parts strengthening.Keywords: out-of-code high-rise building; elastic-plastic; performance-based; rare earthquake作者简介：路江龙，高级工程师，一级注册结构工程师，英联邦特许结构工程师，Email : Lujianglong@sipdri.com。参考文献［1］赵变青，谈丽华，刘强,等.太原国海广场主楼抗震设计与分析［J］. 建筑结构，2014,44(21):36-41.［2］JGJ 3—2010高层建筑混凝土结构技术规程［S］. 北京：中国建筑工业出版社，2011.［3］GB 50010—2010混凝土结构设计规范［S］. 北京：中国建筑工业出版社，2011.［4］韩林海.钢管混凝土结构——理论与实践［M］. 2版. 北京：科学出版社，2007.［5］GB 50011—2010建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.
