消能减震框架结构减震控制

摘要

Aiming at the seismic control problem of high-rise energy dissipation frame structure as well as according to the engineering experience and different seismic ideas,three seismic control methods including the sequential addition control,maximum interlayer displacement control and hysteretic energy control were proposed,and the elasto-plastic energy response analysis for each seismic control effect was carried out with the PERFORM-3D finite element software. The results show that the three seismic control methods can effectively reduce the seismic response to a certain extent, and thus the structural seismic control is achieved. In addition, the hysteretic energy control method is superior to the maximum interlayer displacement control method, and the maximum interlayer displacement control method is better than the sequential addition method. Under the condition that the horizontal and vertical space of the structure is complex,it is more scientific and reasonable to adopt the hysteretic energy control method.%针对高层消能减震框架结构的减震控制问题,根据工程经验以及不同的抗震思想,提出了顺序添加控制、最大层间位移控制和滞回耗能控制三种减震控制方法,并运用PERFORM-3D有限元软件对各种减震控制效应进行了弹塑性能量响应分析.结果表明,三种减震控制方法均可有效地将地震响应缩减到一定的范围内,实现了结构的震动控制;滞回耗能控制方法优于最大层间位移控制方法,而最大层间位移控制方法又优于顺序添加法;在结构横向及纵向空间较为复杂的情况下,采取滞回耗能控制方法更为科学合理.