摘要
通过SAP2000有限元分析软件对某Z型不规则钢框架结构进行地震响应分析,在结构的薄弱位置加入支撑并与原结构进行对比,结果显示:加入支撑后,结构的自振周期显著降低,抗扭刚度提高,各楼层的最大位移和最大层间位移角有较大程度降低;其中,不同类型的支撑抵抗地震作用的能力不同,加入X形支撑对结构的抗震效果最优,加入人字形支撑次之,加入单斜杆支撑的效果最低。
This article mainly uses SAP2000 finite element analysis software to analyze the seismic response of a Z-shaped irregular steel frame structure.Supports are added to the weak position of the structure and compared with the original structure,and the corresponding conclusions are drawn.This article mainly analyzes the structure from the three aspects of modal,response spectrum and time history.After adding supports,the natural vibration period of the structure is significantly reduced,the torsional stiffness is improved,and the maximum displacement and the maximum displacement angle between floors are larger.Among them,different types of bracing have different abilities to resist seismic effects.The addition of central bracing has the best seismic effect on the structure,the addition of herringbone bracing is second,and the addition of single diagonal rod bracing has the best effect.
作者
万小康
雷庆关
WAN Xiao-kang;LEI Qing-guan(School of Architecture and Construction,AnHui JianZhu University,Hefei 230601,China)
出处
《河南城建学院学报》
CAS
2020年第6期8-16,共9页
Journal of Henan University of Urban Construction
基金
安徽省高等学校自然科学研究重大项目(KJ2014ZD07)。
关键词
不规则结构
支撑类型
模态分析
反应谱分析
时程分析
irregular structure
support type
modal analysis
response spectrum analysis
time history analysis
作者简介
万小康(1996-),男,安徽霍山人,在读硕士研究生,研究方向:工程结构抗震理论。
