摘要
借助SAP2000有限元软件建立竖向不规则钢结构模型,比较分析该结构在加支撑前后的抗震性能。通过模态分析、反应谱分析、时程分析,比较了结构加支撑前后的自振周期、水平位移和层间位移角。分析结果表明,加了支撑后结构的抗震性能更好。支撑可以减小结构的自振周期、水平位移和水平层间位移角,显著提高结构的抗震性能,使得结构更加安全稳定。
The vertical irregular steel structure model is established with the help of SAP2000 finite element software,and the seismic performance of the structure before and after the support is compared and analyzed.Through modal analysis,response spectrum analysis and time history analysis,the natural vibration period,horizontal displacement and interlayer displacement angle of the structure before and after the support are compared.The analysis results show that the structure has better seismic performance after the support is added.The support can reduce the natural vibration period,horizontal displacement and horizontal interlayer displacement angle of the structure,significantly improve the seismic performance of the structure,and make the structure more security and stability.
作者
胡志
雷庆关
HU Zhi;LEI Qingguan(School of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2020年第3期102-108,共7页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
安徽省高等学校自然科学研究重大项目“非规则结构地震反应特性与抗震减震研究”(KJ2014ZD07)。
关键词
高层住宅
钢结构
大底盘
加支撑
抗震性能
high-rise residence
steel structure
large chassis
added support
seismic performance
