建筑钢结构进展2023，Vol.25Issue(12)：23-29,7.DOI:10.13969/j.cnki.cn31-1893.2023.12.003
安装有位移放大型扭转阻尼器的框架节点抗震性能分析
Seismic Performance Analysis of Frame Beam-Column Joints with Displacement-Amplified Torsional Dampers
摘要
Abstract
A new type of displacement-amplified torsional damper(DATD)can realize composite energy dissipation by the shear hysteresis deformation of lead core and high damping rubber.This paper further analyzed the working principle and energy dissipation performance of DATD.The seismic performance of frame beam-column joints with this damper was studied.The ABAQUS software was used to establish the finite element model of the DATD,the ordinary cast-in-place joint and the joint equipped with the DATD respectively.By comparing the finite element analysis results of the ordinary cast-in-place joint with the previous test results,the hysteresis curves of the two were in good agreement,thus verifying the effectiveness of the numerical simulation method.Furthermore,the energy dissipation performance of ordinary joints and joints equipped with DATD under cyclic loads were compared,and the influence of DATD on the seismic performance of beam-column joints was analyzed.The research results show that DATD joints have full hysteretic curves and superior energy dissipation capacity,which can significantly delay joint cracking,and protect beam-column joints.关键词
位移放大型扭转阻尼器/耗能能力/框架梁柱节点/抗震性能/数值模拟Key words
displacement-amplified torsional damper/energy dissipation capacity/frame beam-column joint/seismic performance/numerical simulation分类
建筑与水利引用本文复制引用
颜学渊,魏晓颖,刘旭宏,施燊,毛会敏..安装有位移放大型扭转阻尼器的框架节点抗震性能分析[J].建筑钢结构进展,2023,25(12):23-29,7.基金项目
国家自然科学基金(52278490),福建省科技计划项目(2022Y3001、2023J01133433),福州市科技计划项目(2021-Y-082) （52278490）
