结构工程师2024，Vol.40Issue(3)：68-75,8.
底层自复位框架结构抗震性能分析
Seismic Performance Analysis of Bottom-Storey Self-Centering Frame Structure
摘要
Abstract
A three-dimensional finite element model is established for both a multi-storey conventional frame structure and a bottom-storey self-centering frame structure in an area designed for an 8-intensity seismic fortification(0.2g),modelled using the finite element software ABAQUS.Four ground motion records are selected and amplified to the peak accelerations of 0.07g and 0.4g,respectively,to conduct elastic-plastic time history analysis.The dynamic responses and damage patterns of the two structures under seismic actions are compared.Numerical simulation results indicate that the inter-storey drift ratio of the self-centering frame structure is similar to those of the conventional frame structure and is within the specified limits in the standard.Under severe seismic loads,the damage is mainly propagated on the beam ends of the bottom two storeys.The damage to the column bases of the bottom-storey self-centering structure is lighter than that of the conventional frame structure.The residual displacement of the self-centering frame structure is much smaller than that of the conventional frame structure.关键词
底层自复位框架结构/ABAQUS/弹塑性时程分析/抗震性能Key words
bottom-storey self-centering frame structure/ABAQUS/elastic-plastic time history analysis/seismic performance引用本文复制引用
许势然,李培振,何胤龙..底层自复位框架结构抗震性能分析[J].结构工程师,2024,40(3):68-75,8.基金项目
国家自然科学基金项目(51978524) （51978524）
