钢管混凝土扁柱-钢梁节点抗震性能有限元分析.pdfVIP

第47卷第2期合肥工业大学学报（自然科学版）Vol.47No.2

2024年2月JOURNALOFHEFEIUNIVERSITYOFTECHNOLOGY(NATURALSCIENCE)Feb.2024

DOI:10.3969/j.issn.1003-5060.2024.02.009

钢管混凝土扁柱-钢梁节点抗震性能有限元分析

黄志鹏，蒋庆1²，王瀚钦，宣典春1

摘要：为避免钢框架结构中梁柱节点凸出墙体，文章提出一种钢管混凝土扁柱与钢梁节点，采用ABAQUS

有限元模拟软件建立4个不同连接位置的钢管混凝土扁柱-钢梁节点的有限元模型，分析节点在低周往复荷

载下的破坏模式和抗震性能；结果表明，所提出的节点构造可以实现梁柱刚性连接，所有节点均发生梁铰破

坏，抗震性能和耗能能力良好。进一步研究轴压比、竖向隔板厚度和连接构造对节点抗震性能的影响规律，

结果表明：随着轴压比的提高，柱端峰值承载力随之下降；减小柱内竖向内隔板的厚度会导致柱端承载力的

降低；将盖板连接改为竖向加劲肋连接后，能有效缓解节点处柱壁的应力集中现象。

关键词：钢管混凝土扁柱；梁柱节点；有限元模拟；抗震性能；参数分析

中图分类号：TU398.9文献标志码：A文章编号：1003-5060(2024)02-0200-07

Finiteelementanalysisofseismicperformanceofjointsbetween

concrete-filledsteeltubularflatcolumnsandH-beams

HUANGZhipeng’

(1.SchoolofCivilandHydraulicEngineering,HefeiUniversityofTechnology,Hefei230009,China;2.AnhuiKeyLaboratoryofCivil

EngineeringStructuresandMaterials,Hefei230009,China)

Abstract:Toavoidtheprojectionofbeam-columnjointsfromthewallinthesteelframestructure,thispaper

proposesakindofjointbetweenconcrete-flledsteeltubularflatcolumnandH-beam.Finiteelementmodelof

thejointswithfourdifferentconnectionpositionswasestablishedinABAQUSsoftwaretoanalyzethefailure

modeandseismicperformanceofthejointsunderlow-cyclicreversedloads.Finiteelementanalysisresults

showthattheproposedjointscanachievearigidbeam-columnconnection.Alljointsaresubjecttobeam-

hingeddamagewithgoodseismicperformanceandenergydissipationcapacity.Onthisbasis,theeffectsof

axialcompressionratio,thicknessofverticalinternalplateandbeam-endconfigurationontheseismicper-

formanceofthejointswerefurtherinvestigated.Theresultsshowthattheforceappliedonthecolumn-end

decreaseswiththeincreaseofaxialp