地震工程学报2026，Vol.48Issue(4)：810-819,10.DOI:10.20000/j.1000-0844.20241126001
工字形软钢阻尼器装配单连梁结构的抗震性能研究
Seismic performance of assembled single-coupling beam structures with I-shaped mild steel dampers
摘要
Abstract
Herein,we propose a design scheme to address the issues related to the poor seismic per-formance and low construction efficiency of coupling beam connections in prefabricated concrete struc-tures.The proposed scheme employs metal dampers for the connection of precast shear walls and cou-pling beams.Using the ABAQUS finite element software,we investigated the mechanical perfor-mance of 24 structures with assembled single-coupling beams equipped with I-shaped mild steel damp-ers under low-cycle reciprocating loading.Specifically,we analyzed the effects of different parameters on the load-displacement(P-Δ)skeleton curves,stiffness degradation curves,and strength degrada-tion curves of the assembled single-coupling beam structures.The results showed that the grout strength and web thickness of an I-shaped mild steel damper slightly affect the P-Δ skeleton curves;the variation in bearing capacity does not exceed 10%.In contrast,the shear wall thickness and web height of the damper significantly affect the P-Δ skeleton curves;the bearing capacity variations exceed 40%and 15%,respectively.The web height and thickness of the mild steel damper and the grout strength considerably affect the initial stiffness of the coupling beam;however,their effect on stiffness degradation is minimal.The strength degradation curves generally exhibit an initial increase,followed by a gradual decrease.The proposed design scheme is applicable to engineering applications and meets the multifunctional coordination requirements of load-bearing,energy dissipation,and assembly of the structure.The design results can be used as a reference for the engineering application of prefabricated frame-shear wall structures.关键词
装配式混凝土结构/ABAQUS有限元软件/工字形软钢阻尼器/荷载-位移骨架曲线Key words
prefabricated concrete structure/ABAQUS finite element software/I-shaped mild steel damper/load-displacement skeleton curve分类
建筑与水利引用本文复制引用
郑博,李维滨,刘雅,于童,艾雅译,陈燕,周承宗..工字形软钢阻尼器装配单连梁结构的抗震性能研究[J].地震工程学报,2026,48(4):810-819,10.基金项目
国家自然科学基金项目(51778143) （51778143）
