建筑结构学报2025，Vol.46Issue(6)：60-71,12.DOI:10.14006/j.jzjgxb.2024.0306
配置阻尼器的可更换角钢仿古建筑钢结构节点抗震性能试验研究
Seismic behavior of steel joints with replaceable angles for antique buildings with dampers
摘要
Abstract
To address the issue of seismic damage to steel structure antique buildings,where the special form of the structure leads to easy tearing of the beam end parent material and difficulty in post-earthquake repair,a damage-controllable steel beam-column joint with replaceable angles was proposed.One steel semi-rigid joint with replaceable angles for antique buildings was designed,along with two sets of joint specimens with shear dampers and one with rotational dampers for comparison.Based on cyclic loading tests of these joints,the failure modes,hysteretic characteristics,stiffness degradation,and energy dissipation capacity of the specimens were compared.The experimental results show that the damage of all specimens is concentrated on the replaceable angle part.After replacing the damaged angles,the performance of the joint specimens can be recovered,indicating that the joints have good seismic performance and repairability.Compared with the semi-rigid joint specimen,the replaceability of the angles in joints with shear damper and rotational damper is improved.Specifically,the strength and cumulative energy dissipation of the specimen with shear dampers increase by 225％and 202％,respectively.Based on the experiment results,a three-dimensional refined numerical model was established,and the parametric analysis results suggest that when designing such joints,the thickness of the shear damper connection plate,the sliding force and the thickness of replaceable angles should be increased to effectively improve the energy dissipation capacity of the joint and enhance the post-earthquake repairability of the structural system.关键词
仿古建筑/钢结构节点/可更换角钢/摩擦阻尼器/有限元分析/抗震性能Key words
antique building/steel joint/replaceable angle/friction damper/finite element analysis/seismic performance分类
土木建筑引用本文复制引用
薛建阳,袁振,戚亮杰,薛高明..配置阻尼器的可更换角钢仿古建筑钢结构节点抗震性能试验研究[J].建筑结构学报,2025,46(6):60-71,12.基金项目
国家自然科学基金项目(52008330). （52008330）
