不同支撑体系对钢框架的地震反应分析  

Seismic Response Analysis of Steel Frame with Different Support Systems

作　　者：杨子旭 雷庆关 YANG Zi-xu LEI Qing-guan(Graduate School of Anhui Jianzhu University, Hefei 230601, China)

机构地区：[1]安徽建筑大学研究生院

出　　处：《江西科技学院学报》2017年第3期48-54,共7页Journal of Jiangxi University of Technology

基　　金：安徽省高等学校自然科学研究重大项目(NO.KJ2014ZD07)

摘　　要：本文采用SAP2000建立了三种模型：模型1为钢框架结构（不加支撑）、模型2为铜框架-x型支撑结构和模型3为钢框架-倒V型支撑结构。对三个模型分别进行模态、反应谱和时程分析，得出三个模型的层间位移和层间位移角等一些重要结果。对分析出的数据进行综合整理，得出增加x型支撑和倒V型支撑都可以减小结构的自振周期和水平位移，增大结构抗侧移刚度，使结构的抗震性能增大，保障结构更安全。同时可以看到，X型支撑对减小结构的周期和水平位移效果稍微好一点，在进行结构设计时，应该优先考虑。This paper uses SAP2000 to establish three models： Model 1, a steel frame structure （no support）, model 2, a steel frame-X type support structure and model 3, a steel frame - inverted V support structure. The three models are ana- lyzed by modal, response spectrum and time history, and some important results such as interlayer displacement and inter- laminar displacement angle of the three models are obtained. It is concluded that increasing the X-type support and the inverted V-shaped support can reduce the vibration period and horizontal displacement of the structure, and that increasing the lateral stiffness of the structure, and the seismic performance of the structure can make the structure more secure. At the same time it is verified that the X-type support is slightly better to reduce the structure of the cycle and horizontal displacement effect, which should be given priority in the structural design.

关 键 词：钢框架-支撑结构 模态分析 反应谱分析 时程分析 动力性能 

分 类 号：O302[理学—力学]