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

打开文本图片集

中图分类号：TU31，TU352 文献标志码：A DOI： 10.15935/j.cnki.jggcs.20250703.002

AbstractEarthquake 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.Asa 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—202O），this study conducts and compares seismicresilience assessments of stel-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 forthe enhancement of building seismic-resilience standards.

Keywordsseismic resilience，braced-frame structure，buckling-restrained brace，self-centering brace， engineering demand parameters

0 引言

我国城镇化进程持续加快，城镇化水平稳步提升1。（剩余16308字）