高层钢结构建筑耗能器的布置

Optimum installation of the shear plate dissipating energy device for the high-rise steel structures

剪切板耗能装置是一种新型有效的耗能减震装置,本文旨在研究高层结构体系中耗能剪切板的减震效果。先介绍了低屈服点钢剪切板耗能装置的减振机理、动力特性及恢复力模型,建立了安装了剪切板耗能装置的高层钢结构建筑的计算模型。结合具体工程实例,进行多种剪切板耗能装置的布置方案设计。加入耗能剪切板后,利用剪切板耗能,让主体结构在罕遇地震作用下保持弹性状态。选取合适的地震波采用有限元法对每种布置方案进行减震效果的分析。对整体位移、层间位移、动力反应加速度、反应速度进行分析比较,在经济上、技术上建立剪切板耗能装置在上述结构体系中的的最优配置方案。

Shear plate dissipating energy device is a kind of modern efficient passive control device for suppressing vibration and dissipating energy.This paper introduces the principle of low yield strength steel shear plate dissipating energy.A model capable of simulating the movements of high-rise steel building installed with shear plate dissipating energy devices is set up.The effects of suppressing vibration for different location of dampers are calculated by means of finite element analysis and compared.And combined with theoretical analyses,economic factors and technical factors,a method about choosing the optimum devices position of energy dissipation devices is put forward.Finally,a practical example is given to illustrate the application of the method.