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介绍框架阻尼填充墙的构造、原理与特点。结合某工程,利用PERFORM-3D软件对阻尼填充墙框架、普通填充墙框架和纯框架结构进行了动力特性及弹塑性地震响应分析,研究了阻尼填充墙和普通填充墙对多层框架结构抗震性能的影响及阻尼填充墙的减震效果。结果表明:阻尼填充墙可耗散输入结构的部分地震能量,减小结构构件的非线性耗能,减轻结构构件在地震中的损伤;阻尼填充墙的刚度效应明显小于普通填充墙,对于解决结构纵、横向填充墙布置形式或数量差异过大造成的结构两个平面主轴动力特性不相近的抗震问题具有良好的效果;阻尼填充墙框架结构的自振周期介于纯框架结构和普通填充墙框架结构之间,较普通填充墙框架结构大为延长;采用阻尼填充墙可有效避免普通填充墙对结构破坏机制的不利影响,有助于框架结构实现“强柱弱梁”的屈服机制。
Introduce the structure, principle and characteristics of the frame damped infill wall. Combined with a project, the dynamic characteristics and elasto-plastic seismic response analysis of the damping infilled wall frame, ordinary infill wall frame and pure frame structure were carried out by using PERFORM-3D software. The seismic performance of the damping infilled walls and ordinary infilled walls was studied. The effect of damped wall damping and damping effect. The results show that the damped infilled walls can dissipate some of the seismic energy input to the structure and reduce the nonlinear energy consumption of the structural members and reduce the damage of the structural members in the earthquake. The damping effect of the infilled walls is obviously less than that of ordinary infill walls. Longitudinal and transverse infill wall layout forms or the number of large differences caused by the structure of the two planar spindle dynamic characteristics of seismic resistance is not the same with good effect; damping infilled wall frame structure of the natural period between pure frame structure and ordinary infill wall frame Compared with ordinary infill walls, the infill structure can be greatly prolonged. The use of damping infill walls can effectively avoid the unfavorable influence of ordinary infill walls on the structural failure mechanism and contribute to the yield mechanism of “strong column and weak beam” of the frame structure.