湖南大学学报（自然科学版）2026，Vol.53Issue(7)：75-88,14.DOI:10.16339/j.cnki.hdxbzkb.2026062
再生混凝土波形腹板PEC柱(弱轴)-钢梁中节点抗震性能研究
Study on seismic performance of recycled concrete corrugated web PEC columns(weak-axis)-steel beam intermediate joints
摘要
Abstract
Based on previous research on corrugated web PEC columns,this study designed a recycled aggregate concrete corrugated web PEC column(weak axis)-steel beam interior joint specimen subjected to low-cycle reversed loading.A total of 15 finite element models were established to analyze the influence of several variables,including the concrete strength in the joint panel zone,the thickness of the vertical stiffener plate,the flange thickness,the web configuration,and the axial compression ratio.The results indicate that,compared with flat web joint specimens,the corrugated web joint specimens reached their peak load capacity at a later stage and exhibited a more rapid strength degradation after the peak.Significant shear failure was observed in the recycled concrete within the joint core area,significant buckling was observed in the column flanges on both sides of the panel zone,and the weld at the steel beam-to-end-plate connection fractured.Variations in the flange thickness and vertical stiffener plate thickness in the joint region had a considerable influence on both the joint bearing capacity and cumulative energy dissipation.In contrast,changes in the concrete strength and axial compression ratio in the joint zone had relatively minor effects.The shear capacity of the joint was primarily controlled by the restraining action provided by the flanges and the vertical stiffener plate.Based on mechanical analysis of the joint,a formula for predicting the shear capacity of recycled concrete corrugated web PEC column(weak axis)-steel beam joints was proposed.The calculated results showed good agreement with both experimental data and finite element simulations.关键词
PEC柱-型钢梁框架/中节点/拟静力试验/抗震设计/波形钢板/组合结构Key words
PEC column-steel beam frame/intermediate joints/pseudo-static test/seismic design/corrugated steel plates/composite structures分类
建筑与水利引用本文复制引用
王威,钱源明,史鑫鑫,李昱,张珂柔,石垚阳..再生混凝土波形腹板PEC柱(弱轴)-钢梁中节点抗震性能研究[J].湖南大学学报（自然科学版）,2026,53(7):75-88,14.基金项目
国家自然科学基金资助项目(52278214,52378314),National Natural Science Foundation of China(52278214,52378314) （52278214,52378314）
陕西省自然科学基础研究计划重点项目(2022JZ21),Key Project of Nature Science Foundation Program of Shaanxi Province(2022JZ21) （2022JZ21）
土木工程防灾减灾全国重点实验室开放基金(SLDRCE23-06),State Key Laboratory Foundation of Disaster Reduction in Civil Engineering(SLDRCE23-06) （SLDRCE23-06）
