粘滞阻尼墙在框架剪力墙结构中的应用与设计

Application and Design of Viscous Damping Wall in Frame-shear Wall Structure

某医疗建筑病房楼采用的结构体系为附加粘滞阻尼墙的混凝土框架-剪力墙结构。采用动力弹塑性时程分析法能够准确模拟附加粘滞阻尼墙元件的混凝土框架-剪力墙结构的动力响应。基于粘滞阻尼墙的非线性特性,在多遇地震作用下,以考虑附加阻尼比的反应谱法进行结构设计,在罕遇地震作用下采用弹塑性时程分析的方法评估结构的抗震性能。结果表明,采用粘滞阻尼墙,主体结构地震反应降低,抗震性能显著提高。

In a medical building,the structural system is a concrete frame-shear wall structure with viscous damping walls.The dynamic elasto-plastic time history analysis method can accurately simulate dynamic response of the concrete frame-shear wall structure with viscous damping wall elements.Based on the nonlinear characteristics of the viscous damping wall,under frequent earthquakes,the response spectrum method considering additional damping ratio is used for structural design,and the elastoplastic time history analysis method is used to evaluate seismic performance of the structure under rare earthquakes.The results show that use of viscous damping walls reduces seismic response of the main structure and significantly improves seismic performance.