建筑结构学报2025，Vol.46Issue(1)：51-60,10.DOI:10.14006/j.jzjgxb.2024.0018
装配式混合框架-偏心支撑结构抗震性能试验研究
Experimental study on seismic performance of eccentrically braced precast hybrid frame
摘要
Abstract
The prefabricated eccentrically braced hybrid frame is an innovative structural system that cleverly combines eccentric bracing with a precast concrete column-steel beam hybrid frame.Three specimens were tested for seismic performance under low-cycle repeated loading,including two with eccentric bracing(called"eccentrically braced substructures")and one for comparison with a traditional hybrid frame.The experiments varied the nominal yielding shear force in the energy-dissipating link to study failure modes and seismic performance.Results show that,under horizontal seismic loading,plastic deformation in the eccentrically braced substructures mainly occurred in the link,with minor damage at the base of the columns,while other components mostly stayed elastic.Compared to the traditional hybrid frame,the eccentrically braced substructures exhibit significant improvements in load capacity,initial stiffness,and energy dissipation,with increases of at least 1.58 times,3.05 times,and 2.29 times,respectively.The nominal yield force in the link increases by 30％,and the corresponding load capacity and initial stiffness of the braced substructure increase by 10％and 8％respectively,and the displacement ductility coefficient remained consistent.The eccentrically braced substructure's ultimate load capacity calculation based on the virtual work principle showes a relative error within 11％.关键词
混合框架/偏心支撑子结构/装配式/拟静力试验/抗震性能/承载力Key words
hybrid frame/eccentrically braced substructure/prefabricated/quasi-static test/seismic performance/bearing capacity分类
土木建筑引用本文复制引用
张锡治,马相,章少华,董泊军,刘瑞珩,鞠杰..装配式混合框架-偏心支撑结构抗震性能试验研究[J].建筑结构学报,2025,46(1):51-60,10.基金项目
国家自然科学基金项目(52278203),天津市科技计划重点项目(19YDLYSN00120),安徽省自然科学基金"水科学"联合基金项目(2208085US08). （52278203）
