- 摘 要
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（1 天津大學建筑設計研究院， 天津 300072； 2 天津大學建筑工程學院， 天津 300072；3 天津港（集團）有限公司， 天津 300461）
［摘要］為研究預制高強混凝土管柱-鋼梁框架節(jié)點的抗震性能，對6個不同參數(shù)的預制高強混凝土管柱-鋼梁框架節(jié)點試件進行了低周反復荷載試驗?；谠囼灁?shù)據(jù)，采用有限元分析軟件ABAQUS建立了預制高強混凝土管柱-鋼梁框架節(jié)點的有限元模型，有限元模型模擬結(jié)果和試驗結(jié)果吻合較好，表明該有限元模型參數(shù)可靠。在此基礎上，利用該有限元模型進行變參數(shù)分析，分析了柱軸壓比、預應力張拉控制應力、環(huán)板寬度對節(jié)點抗震性能的影響。分析結(jié)果表明：隨著軸壓比的增加，試件的承載能力顯著增加，但試件的延性降低； 增大預應力筋張拉控制應力和環(huán)板寬度，試件承載能力均有一定提高且剛度變大。
［關(guān)鍵詞］裝配式建筑； 高強混凝土管柱； 梁柱節(jié)點； 抗震性能
中圖分類號：TU398-2, TU317-1文獻標識碼：A文章編號：1002-848X(2020)22-0009-07
Analysis of seismic behavior of precast reinforced concrete tube column-steel beam frame joints
ZHANG Xizhi1,2, LI Qiannan2, GONG Xuejian2, ZHANG Jiawei2, WANG Long3
(1 Architectural Design & Research Institute of Tianjin University, Tianjin 300072, China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 3 Tianjin Port (Group) Co., Ltd., Tianjin 300461， China)
Abstract:To study the seismic behavior of precast reinforced concrete column-steel beam (RCS) frame joints, experiments of 6 precast reinforced concrete tube column-steel beam frame joints with different parameters under low cyclic reversed loading were conducted. Based on the experimental data, the finite element analysis software ABAQUS was used to establish the finite element model of the precast reinforced concrete tube column-steel beam frame joints. The simulation results of the finite element model and the test results were in good agreement, indicating that the finite element model parameters were reliable. On this basis, the finite element model was used for variable parameter analysis, and the influence of column axial compression ratio, prestressed tension control stress, and width of the loop plate on the seismic performance of the joint was analyzed. The results show that the bearing capacity of the specimens significantly increased with the increase of the axial compression ratio, but the ductility of the specimens decreased. The bearing capacity and stiffness of the specimens are improved by increasing the tension control stress of prestressed tendons and enlarging the width of the loop plate.
Keywords:prefabricated building; reinforced concrete tube column; beam-column joint; seismic performance
*國家自然科學基金資助項目(51578369)，天津市科技計劃項目(19YDLYSN00120),天津港科技計劃項目（2017-379）。
作者簡介：張錫治，博士，研究員，博士生導師，Email: zhang_xz@tju.edu.cn； 通信作者：李倩楠，碩士，助理工程師，Email: 531563378@qq.com。
