摘要
【目的】探究不同高度隔震层对框架结构的抗震性能。【方法】基于某高层框架结构,运用SAP2000有限元软件对非隔震模型进行建模,并在此基础上分别建立基础隔震、6层隔震、12层隔震、18层隔震及22层隔震结构模型。【结果】对于上述结构模型进行反应谱和时程分析,通过软件运算得到模型在地震波下的基本周期、层间剪力以及层间位移,使其之间相互对比,探究不同隔震层位置对结构受力的影响。【结论】研究表明,随着隔震层高度的上升,基本周期在逐渐缩小,层间剪力和层间位移逐渐增大,在隔震层接近顶层时,基本周期、层间剪力和层间位移接近非隔震结构。
[Purposes]In order to investigate the seismic performance of frame structures with different heights of seismic isolation layers.[Methods]Based on a high-rise frame structure,a non-seismic model is established by using SAP2000 finite element software,and on this basis,structural models of base isolation,6-story isolation,12-story isolation,18-story isolation and 22-story isolation are estab⁃lished respectively.[Findings]The response spectrum and time analysis are carried out for the above structural models,and the basic period,interstory shear force and interstory displacement of the models under seismic waves are obtained through software calculations,so that they can be compared with each other to explore the changes of structural forces by different seismic isolation layer locations.[Conclu⁃sions]It is shown that as the height of the seismic isolation layer rises,the fundamental period is gradu⁃ally decreasing,and the interstory shear force and interstory displacement are gradually increasing,and the fundamental period,interstory shear force and interstory displacement are close to those of the nonseismic isolation structure when the seismic isolation layer is near the top.
作者
冯子超
兰文改
FENG Zichao;LAN Wengai(College of Civil Engineering and Communication,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)
出处
《河南科技》
2023年第3期82-85,共4页
Henan Science and Technology
关键词
框架结构
时程分析
层间隔震
frame structure
time analysis
interlayer seismic
