日本钢筋混凝土多层结构抗震评估方法
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(1 清华大学土木工程系，北京 100084； 2 日本神户大学大学院工学研究科，日本 6578501；3 吉林大学建设工程学院，长春 130026； 4 西南交通大学土木工程系，成都 610031)［摘要］介绍了日本既有钢筋混凝土多层结构的抗震评估方法，方法基于综合考虑结构抗震承载力和塑性变形能力的原则和理论，给出了结构楼层抗震能力评价指标，并结合实际震害分析确定了该评价指标的取值。根据结构楼层可能发生的各种破坏模式，给出了各类竖向构件抗震能力的确定方法，方法从简单计算逐级到更准确计算，形成了三级评估体系，其中的结构抗震能力评估原则、理论、结构破坏模式判别和楼层抗震能力指标的确定方法，对发展我国多层钢筋混凝土结构抗震评估和结构震害分析都具有参考意义。［关键词］钢筋混凝土多层建筑；抗震评估；抗震能力；承载力；延性；破坏模式Introduction of evaluation method of the seismic capacity of existing multistory RC buildings in JapanYe Lieping1, Sun Yuping2, Zhu Shan3, Zhao Shichun4(1 Department of Civil Engineering, Tsinghua University, Beijing 100084,China; 2 Dep. of Arch., Graduate School of Engineering, Kobe University, 6578501, Japan; 3 School of Arch. Eng., Jilin University, Changchun 130026,China; 4 Dep. of Civil Eng., Xi’nan Jiaotong University, Chengdu 610031,China)Abstract:The evaluation method of the seismic capacity of existing multistory RC buildings in Japan is introduced. Three levels of screening procedures are prepared in the Japanese method, and each level of screening can be used independently to evaluate the seismic capacity of each story of exiting buildings in every principal direction. Seismic safety is judged by comparing the seismic capacity index of each story with the seismic demand index. The seismic capacity index is calculated on the basis of the ultimate strength, deformability, and failure pattern of all vertical members at each story. The seismic evaluation theory, failure pattern checking and the determination of seismic capacity index are valued for developing the evaluation method of the seismic capacity of existing multistory RC buildings in China.Keywords:reinforced concrete; multistory buildings; evaluation; seismic capacity; strength index; ductility index; failure pattern国家科技支撑计划课题(2006BAJ03A02)；国家科技支撑计划项目(2009BAJ28B01)；国家自然科学基金重大研究计划重点项目资助(90815025)。作者简介：叶列平(1960)，男，温州人，教授，博士生导师，Email:ylp@mail.tsinghua.edu.cn。参考文献［1］HIROYUKI AOYAMA. A method for the evaluation of the seismic capacity of existing reinforced concrete buildings in Japan ［R］. Bulletin of the New Zealand National Society for Earthquake Engineering，1981,14(3):105-130.［2］SUN Y P, ZHAO S C, LIU Y H. Seismic evaluation of concrete buildings in China［Ｃ］∥Proceedings of International Conference on Earthquake Engineering: The 1st Anniversary of Wenchuan Earthquake, Chengdu,2009.［3］清华大学土木结构组，西南交通大学土木结构组，北京交通大学土木结构组.汶川地震建筑震害分析［J］.建筑结构学报，2008,29(4):1-9.［4］王亚勇.汶川地震建筑震害启示——抗震概念设计［J］.建筑结构学报, 2008, 29(4): 20-25.［5］GB50011—2001 建筑抗震设计规范［S］. 北京:中国建筑工业出版社, 2001.［6］VELETSOS A S, NEWMARK N M. Effect of inelastic behavior on the response of simple system to earthquake motion［C］∥Pro
