结构工程师2025，Vol.41Issue(4)：57-68,12.DOI:10.15935/j.cnki.jggcs.20250703.002
屈曲约束支撑与自复位支撑-框架结构抗震韧性评估对比研究
Comparative Study on Seismic Resilience Assessment of Buckling-Restrained Braced and Self-Centering Braced Steel Frame Structures
摘要
Abstract
Earthquake disasters have a significant impact on urban socioeconomic systems,and the seismic resilience of buildings has garnered widespread attention.Traditional seismic-design approaches struggle to meet the resilience demands of modern structures.As a novel seismic component,self-centering braces require quantitative investigation to characterize their resilience advantages.Based on the Standard for Seismic Resilience Evaluation of Buildings(GB/T 38591-2020),this study conducts and compares seismic-resilience assessments of steel-frame buildings equipped with buckling-restrained braces(BRBs)and those with self-centering braces.Results indicate that both structural types receive a one-star resilience rating.The self-centering-braced structure demonstrates superior performance in controlling residual drift angle and maximum inter-story drift angle,while the BRB-braced structure excels in limiting peak floor acceleration.The current standard does not adequately account for the impact of residual displacement on resilience;it is recommended that future revisions incorporate related indexes.This study provides reference data for the resilience evaluation of novel seismic-resistant systems and carries important implications for the enhancement of building seismic-resilience standards.关键词
抗震韧性/支撑-框架结构/屈曲约束支撑/自复位支撑/工程需求参数Key words
seismic resilience/braced-frame structure/buckling-restrained brace/self-centering brace/engineering demand parameters分类
建筑与水利引用本文复制引用
施乔译,肖意,吕西林..屈曲约束支撑与自复位支撑-框架结构抗震韧性评估对比研究[J].结构工程师,2025,41(4):57-68,12.基金项目
国家重点研发计划项目(2023YFC3805000) （2023YFC3805000）
国家自然科学基金项目(52208501) （52208501）
