罕遇地震下自复位钢框架抗震性能参数分析*

(1. 北京建筑大学 土木与交通工程学院,北京100044; 2. 北京建筑大学 工程结构与新材料 北京市高校工程研究中心,北京100044)

自复位钢框架结构; 初始预应力值; 摩擦阻尼器的摩擦力值; 抗震性能

Analysis of the Seismic Performance Influence Factor of Self-centering Steel Frame under the Rare Earthquake
ZHANG Yanxia1,2, CHEN Yuanyuan1,WANG Zongyang1,FEI Chenchao1

(1.School of Civil and Transportation Engineering,University of Civil Engineering and Architecture,Beijing 100044,China)(2.Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials,University of CivilEngineering and Architecture,Beijing 100044,China)

self-centering steel frame structure; the initial prestress value; friction value of friction dampers; seismic performance

备注

分析研究对梁腹板带有摩擦阻尼器的自复位钢框架结构抗震性能起主要影响作用的钢绞线初始预应力值和摩擦阻尼器的摩擦力值这两项参数。首先,采用ABAQUS有限元软件的连接单元法建立结构分析模型。然后,对结构分析模型的计算参数进行取值。最后,分析了预应力钢绞线的初始预应力值和摩擦阻尼器的摩擦力值这两项参数对自复位钢框架结构抗震性能的影响。

The initial prestress value of steel strands and the friction value of friction dampers play major roles in the seismic performance of self-centering moment resisting frame containing web friction damper. These two parameters are analyzed and studied in this paper. Firstly, the integral structure analysis model was established by utilizing connecting element method of ABAQUS finite element software. Secondly, the two variable parameters of different initial prestressed values and friction dampers value were obtained. Finally, the influences of the two factors on the self-centering steel frame are analyzed.