高烈度区大高宽比装配式剪力墙结构抗震性能设计实践  

Seismic performance design practice of large height-width ratio assembled shear wall structure in high intensity area

作　　者：赵楠 徐小童 肖明 陶劲夫 李鹏飞 朱静怡 张祚嘉 ZHAO Nan;XU Xiaotong;XIAO Ming;TAO Jinfu;LI Pengfei;ZHU Jingyi;ZHANG Zuojia(JZFZ Architectural Design Co.,Ltd.,Chengdu 610017,China;China Institute of Building Standard Design&Research,Beijing 100048,China)

机构地区：[1]基准方中建筑设计股份有限公司,成都610017 [2]中国建筑标准设计研究院有限公司,北京100048

出　　处：《建筑结构》2025年第1期91-94,100,共5页Building Structure

基　　金：北京市科学技术协会北京优秀青年工程师创新工作室种子基金资助(2024-A)。

摘　　要：北京市丰台区城乡一体化小瓦窑村改造项目为高烈度区的大高宽比高装配率居住建筑,竖向预制构件应用比例不低于35%,主体结构采用预制内外剪力墙作为承重抗侧力构件。项目主体结构高宽比为4.0~7.9,远超国家规范限值,创新性地运用抗震性能设计方法,总结高烈度区大高宽比剪力墙结构的抗震性能措施。重点分析与控制预制构件在多遇地震下不出现小偏心受拉,竖向钢筋平均拉应力水平不大于50%的屈服应力,并适当加强边缘构件配箍特征值。在设防地震下构件的拉应力水平不超过2倍混凝土抗拉强度标准值,并对出现小偏心受拉的联肢墙进行加强。在罕遇地震下复核结构的弹塑性层间位移角和损伤情况,验证抗震性能措施的安全性和合理性,保证小震不坏、中震可修及大震不倒的设防目标。The reconstruction project of Xiaowayao Village in Fengtai District of Beijing is a residential building with large height-width ratio and high assembly rate in high intensity area.The application proportion of vertical prefabricated components is not less than 35%.The main structure adopts prefabricated internal and external shear walls as load-bearing and lateral force-resisting components.The height-width ratio of the project main structure is 4.0 ~ 7.9,far exceeding the national standard limit.The seismic performance design method was innovatively used,the seismic performance measures of the shear wall structure with large height-width ratio in high intensity area were summarized.It focuses on the analysis and control of prefabricated components without small eccentric tension under frequent earthquakes.The average tensile stress level of vertical steel bars is not greater than 50% of the yield stress,and the stirrup characteristic value of the edge members was appropriately strengthened.Under the fortification earthquake,the tensile stress level of the component does not exceed 2 times the standard value of the tensile strength of the concrete,and the coupled wall with small eccentric tension was strengthened.The elastic-plastic inter-story displacement angle and damage of the structure under rare earthquakes were reviewed to verify the safety and rationality of the seismic performance measures,and the fortification targets of no damage under small earthquakes,repairable under medium earthquakes and no collapse under large earthquakes were ensured.

关 键 词：高烈度 高宽比 装配式 剪力墙 小偏心受拉 性能设计 

分 类 号：TU398.7[建筑科学—结构工程]