第45卷第4期2023年8月Vol.45No.4Aug.2023土木与环境工程学报（中英文）JournalofCivilandEnvironmentalEngineering侧压竹集成材柱轴心受压试验研究谢亚孜,陈伯望,刘哲,王柳,邓谋韬（中南林业科技大学土木工程学院，长沙410004）摘要：竹集成材是一种将竹片用胶黏剂胶合后压制而成的型材，侧压竹集成材具有良好的受力性能。为了探究侧压竹集成材柱的轴心受压性能，对6组18个不同长细比的试件进行轴心受压试验，分析其承载力、应变、侧向位移、轴向位移与长细比之间的关系，并探讨不同长细比试件的破坏形式。结果表明：侧压竹集成材柱的受力过程经历了弹性、弹塑性和破坏阶段，随着长细比的增大，从材料强度破坏向失稳破坏转变，材料破坏具有明显的延性性质。将试验结果与现行规范的计算结果进行比较分析，提出了侧压竹集成材柱的轴心受压承载力计算公式，计算值与试验值吻合较好。关键词：侧压竹集成材；竹结构；轴心受压；长细比；承载力中图分类号：TU366.1文献标志码：A文章编号：2096-6717（2023）04-0146-08Experimentalstudyonside-pressurelaminatedbamboocolumnunderaxialcompressionXIEYazi，CHENBowang，LIUZhe，WANGLiu，DENGMoutao(CollegeofCivilEngineering,CentralSouthUniversityofForestryandTechnology,Changsha410004,P.R.China)Abstract:LaminatedbamboolumberisabamboomaterialthatflatlaminatesaregluedbyadhesivesandcoMPactedintomould.Side-pressurelaminatedbamboolumberhasagoodmechanicalproperty.Inordertoexploreitsmechanicalpropertiesunderaxialcompression,anexperimentalstudywascarriedoutin6groupsof18specimenswithdifferentslendernessratio.Therelationshipsbetweenvariousparameters(bearingcapacity,strain,lateraldisplacementandaxialdisplacement)andslendernessratiowereanalyzed,andthefailuremodesofspecimensunderdifferentslendernessratioswerediscussed.Theresultsindicatethemechanicalprocessofside-pressurelaminatedbamboolumberhasexperiencedthestagesofelasticity,elastic-plasticandfailure.Withtheincreaseofslendernessratio,thefailuremodechangesfrommaterialstrengthfailuretobucklingfailure,andthematerialstrengthfailurehasobviousductilityproperty.Thecomparisonbetweenexperimentalresultsandvariousspecificationswasmadetoputforwardtheformulaofbearingcapacityunderax...
