摘要
为使平立面不规则结构具有良好的抗扭性和整体性,更好地满足抗震设防要求,本文提出了设置金属阻尼器来控制结构平面不规则和立面不规则参数的设想和实现方法,并对一栋9层的L型平立面不规则结构在设置金属阻尼器前后建立了分析模型。通过对该模型的动力时程分析表明,设置金属阻尼器不仅能够有效消耗地震能量,降低结构水平位移,而且在控制扭转变形的同时增强了整体结构的侧向刚度。研究表明:通过设置金属阻尼器控制结构的平立面不规则参数,增强结构整体抗震性能的设想是可行的。
To make flat facade irregular frame structure with good resistance to twist and integrity,to satisfy the requirements of seismic fortification intensity,in this paper,the metal damper to control plane irregular and facade irregular tentative plan and implementation method are put forward,and a nine-floors L flat facade irregular model with metal dampers is established.The dynamic time-history analysis shows that install metal damper can not only reduce the horizontal displacement,also strengthening the structure stiffness and enhance wrest resistant structure the lateral stiffness.Research shows that metal damper can not only effective consume earthquake energy and horizontal displacement also control the torsional deformation and enhance overall structure stiffness under earthquake.By setting a metal damper to control structure parameters of the flat facade irregular,strengthening the structure integrity is feasible.
出处
《工程抗震与加固改造》
北大核心
2011年第6期28-33,共6页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金(50978130)
关键词
平立面不规则
金属阻尼器
周期比
位移比
侧向刚度
薄弱层
flat facade irregular
metal damper
period ratio
displacement ratio
lateral stiffness ratio
frail-layer
