摘要
位移相关型消能器可有效增加结构阻尼比,同时增加结构刚度,是高烈度地区一种有效被动抗震方法。本文以云南省某学校一框架结构教学楼为例,该项目同时采用了屈曲约束支撑及金属消能器(软钢剪切)两种位移相关型消能器,介绍分析了消能器设计设计流程、减震目标、分析方法及消能器模拟、延性系数等。弹性及弹塑性时程分析结果表明设置消能器形成了良好的抗震耗能机制,达到了预期的减震目标。
Displacement dependent energy dissipation device can effectively increase the damping ratio of the structure and the structural stiffness,which is an effective passive seismic method in high intensity areas.In this paper,a frame structure teaching building in Yunnan was taken as an example.In this project,two kinds of displacement related energy dissipators,i.e.buckling-res trained brace and metal energy dissipation device(soft steel shear) were used simultaneously.The related problems of energy dissipation device design were introduced and analyzed,including design process,shock absorption target,analysis method,energy dissipation device simulation,ductility coefficient,etc.The results of elastic and elastic-plastic time history analysis showed that a good anti-seismic energy dissipation mechanism was formed by setting energy dissipation device,which achieved the expected goal of energy dissipation.
作者
陈柏宇
杨扬
Chen Baiyu;Yang Yang(Yunnan Zhengyuan Antai Construction Engineering Design Consulting Co.Ltd.,Kuming 650000,China;Yunnan civil air defense Architectural Design Institute Co.Ltd.,Kuming 650000,China)
出处
《特种结构》
2020年第2期113-117,122,共6页
Special Structures
关键词
屈曲约束支撑
金属消能器
减震设计及目标
弹性及弹塑性时程分析
Buckling-restrained brace
Metal energy dissipation device
Designand target of energy dissipation
Elastic and elastic-plastic time history analysis
