建筑钢结构进展2026，Vol.28Issue(3)：71-81,11.DOI:10.13969/j.jzgjgjz.20250308001
模块化钢框架外套筒焊接连接节点的抗震性能试验研究
Experimental Study on Seismic Performance of Welded Connection Joints with Outer Sleeves of Modular Steel Frames
摘要
Abstract
The seismic performance of inter-module joints is crucial to the overall structural safety.This paper proposes a welded inter-module joint(WIMJ).Through reversed loading tests on three WIMJ,the influence of outer sleeve height and thickness on their failure modes,stress distribution,ductile energy dissipation capacity and other seismic performance aspects was investigated.Additionally,the stiffnss of WIMJ was evaluated.The results indicate that the failure mode of WIMJ is beam-end bending failure,with the failure location primarily concentrated at the welded connection between the beam flange and the column.The hysteresis curves of WIMJ are relatively full,undergoing four force stages sequentially:initial slip,elastic deformation,elastoplastic deformation,and failure.The ductility coefficient of WIMJ ranges from 0.75 to 2.03,the equivalent viscous damping coefficient reaches up to 0.15,and the strength degradation coefficient ranges between 0.85 and 1.00,demonstrating good seismic performance.The influence of outer sleeve height and thickness on peak load-bearing capacity and ductile deformation capacity is minimal.The residual deformation curve of WIMJ exhibits a two-stage variation trend.WIMJ are classified as semi-rigid,partial strength connection joints.关键词
模块化钢结构/模块间节点/焊接连接/抗震性能/试验研究/刚性评估/等效黏滞阻尼系数Key words
modular steel structure/inter-module joint/welded connection/seismic performance/experimental study/stiffness evaluation/equivalent viscous damping coefficient分类
建筑与水利引用本文复制引用
宋海涛,王江涛,陈永旗,吴成龙,王永洪,李大壮,张庆华,蒿雨露..模块化钢框架外套筒焊接连接节点的抗震性能试验研究[J].建筑钢结构进展,2026,28(3):71-81,11.基金项目
国家自然科学基金(52208482),山东省自然科学基金(ZR2021QE046) （52208482）
