SHIPENGINEERING船舶工程Vol.45No.12023总第45卷,2023年第1期—33—风电机组混合塔筒转接结构的轴压性能试验郭松龄1,邓然2,曹锋2,王宇航2,周扬1,彭驰1(1.中国船舶集团海装风电股份有限公司,重庆400037;2.重庆大学土木工程学院,重庆400045)摘要:对4个钢筋混凝土转接环缩尺试件进行轴压试验,得到转接环的典型破坏模态,并分析试件的荷载-变形关系和钢筋的应变发展规律,考察配筋率对试件承载性能的影响。研究结果表明:当配置了适量的底部环向钢筋时,转接环的破坏模式为延性破坏,表现为混凝土裂缝逐渐从底部向上发展,最终环向钢筋屈服、混凝土被压碎;当底部环向钢筋配筋率过高时,转接环容易发生脆性破坏;增加箍筋对提高试件承载力作用不大,但可改善试件的变形能力。关键词:风力发电;混合塔筒;转接结构;轴压;破坏模式中图分类号:U661.43文献标志码:A【DOI】10.13788/j.cnki.cbgc.2023.01.05ExperimentalontheAxialCompressiveBehaviorofAdaptersintheHybridTowerforWindTurbineGUOSongling1,DENGRan2,CAOFeng2,WANGYuhang2,ZHOUYang1,PENGChi1(1.CSSCHaizhuangWindPowerCo.,Ltd.,Chongqing400037,China;2.SchoolofCivilEngineering,ChongqingUniversity,Chongqing400045,China)Abstract:4reinforcedconcreteadapterspecimensaretestedunderaxialcompressiveload.Thetypicalfailuremodesofspecimensareobtainedandtheload-deformationrelationsandthestraindevelopmentareanalyzed.Meanwhile,theeffectofrebarratioonthecompressivebehaviorofspecimensisinvestigated.Theresultsshowthat:Thefailureoftheadapterisductilewhenappropriateamountofbottomcircumferentialreinforcementisdeployed,thefailuremodeshowsthattheconcretecracksgraduallydevelopfromthebottomtothetop,andfinallythecircumferentialreinforcementyieldsandtheconcreteiscrushed.Whenthereinforcementratioofbottomcircumferentialreinforcementistoohigh,theadapterispronetobrittlefailure.Increasingstirrupshaslittleeffectonincreasingthebearingcapacityofthespecimen,butitcanimprovethedeformationcapacityofthespecimen.Keywords:windpower;hybridtower;adapter;axialcompression;failuremode0引言目前,我国能源发展正处于深刻变革和重大调整的关键时期。大力发展风电清洁能源,是推动我国发电技术进步和产业升级,实现“双碳”目标的...