建筑结构学报2025，Vol.46Issue(6)：47-59,13.DOI:10.14006/j.jzjgxb.2024.0325
可更换H型钢梁柱仿生铰节点抗震及修复性能试验研究
Experimental study on seismic and repair performance of H-shaped steel beam-column joints with replaceable bio-inspired hinges
摘要
Abstract
To achieve structural concentrated energy dissipation and rapid repair,an H-shaped steel beam-column joint with a replaceable bio-inspired hinge(RBHJ)was proposed.This joint imitated the knee joint structure and was composed of energy dissipation systems to withstand bending moments and connection systems to withstand shear forces.Three specimens were designed and subjected to three low-cycle loading tests and four repair tests.The effects of anti-buckling plates,curved panel diameters and energy dissipation plate weakening rates on the failure mode,hysteresis curve,bearing capacity,energy dissipation capacity and stiffness degradation of the joint were investigated.A finite element model of the RBHJ was established using ABAQUS,and the damage evolution of RBHJ was analyzed in depth based on the test data.The results show that the plastic damage of the joint is mainly concentrated on the energy dissipation plate,avoiding damage to the main structural components under strong earthquakes and achieving precise control of joint damage.After the earthquake,the energy dissipation plate can be replaced by removing bolts,and the performance of the joint can be rapidly restored after repair,indicating stable seismic performance and excellent repairability of the joint.The joint demonstrates superior rotational capability,with a maximum drift ratio of up to 8.70％.The utilization of anti-buckling plates can effectively inhibit the deformation of the energy dissipation plate and improve its ductility.Specimens with larger curved plate diameters exhibit higher bearing capacity,energy dissipation capacity and deformation capacity.Weakening the central part of the energy dissipation plate allows for more precise control of damaged areas,and an increase in the weakening rate enhances the energy dissipation capacity and ductility of the joint.Therefore,it is recommended to give priority to the use of anti-buckling plates,large-diameter curved plates,and weakening-type energy dissipation plates in joint design.关键词
装配式钢结构/梁柱节点/可更换仿生铰/拟静力试验/抗震性能/损伤可控Key words
prefabricated steel structure/beam-column joint/replaceable bio-inspired hinge/quasi-static test/seismic performance/damage control分类
土木建筑引用本文复制引用
王文达,安爱红,袁玉杰,史艳莉..可更换H型钢梁柱仿生铰节点抗震及修复性能试验研究[J].建筑结构学报,2025,46(6):47-59,13.基金项目
甘肃省基础研究创新群体项目(24JRRA169),甘肃省教育厅产业支撑计划项目(2024CYZC-16). （24JRRA169）
