非经典振型分解法求混凝土房屋及其上钢塔的地震响应  

Non-classical mode superposition method for earthquake response of a reinforced concrete building with a steel tower atop it

作　　者：王依群[1] 王华明[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《地震工程与工程振动》2006年第3期94-96,共3页Earthquake Engineering and Engineering Dynamics

摘　　要：钢结构与混凝土结构阻尼比不同,混凝土房屋与其顶上钢塔组成了非比例阻尼结构系统。本文用非经典振型分解法求解该类结构系统的线弹性地震响应,发现只用前几阶振型响应迭加的结果即可逼近直接积分法的精确度。The damping ratio of steel structures and RC structures are different. A reinforced concrete building with a steel tower atop it composes a non-proportional damping system. The non-classical modal superposition method is used for the elastic earthquake response analysis of this system in this paper. An example is calculated, and it is, found that a few modes can provide sufficiently accurate results compared to the direct integration method.

关 键 词：非比例阻尼 振型分解法 钢筋混凝土 钢塔 地震响应 

分 类 号：P315.961[天文地球—地震学]