梁板一体化复合材料夹芯桥面板弯曲性能研究  

RESEARCH ON BENDING PROPERTIES OF BEAM-SLAB INTEGRATED COMPOSITE DECKS

作　　者：姚盛杰 李俊杰 王俊[1] 汤传平 YAO Shengjie;LI Junjie;WANG Jun;TANG Chuanping(School of Civil Engineering,Nanjing University of Technology,Nanjing 211816,China;Anqing Xinbi Real Estate Development Co.,Ltd.,Anqing 246001,China)

机构地区：[1]南京工业大学土木工程学院,南京211816 [2]安庆新碧房地产开发有限公司,安徽安庆246001

出　　处：《工业建筑》2019年第10期105-109,共5页Industrial Construction

基　　金：国家自然科学基金面上项目(51578283);江苏省“六大人才高峰”项目(2016-13)

摘　　要：采用工业化成型工艺,制备成梁板一体化复合材料夹芯构件,并进行四点弯曲试验,分析纤维铺层厚度、水平腹板等参数对夹芯板的破坏形式、极限荷载、跨中变形和整体刚度等的影响规律。结果表明:当纤维铺层数从2层增加到4层和6层,极限承载力分别提高99.8%、213%,刚度分别提高42.6%、99.8%;设立水平腹板对构件极限承载力的影响不大,但能提高构件的延性。建立三维有限元模型,将数值模拟结果与试验结果对比,验证了模型准确性,用验证后的模型分析受压面层厚度和竖向腹板对结构的受力影响。结果表明:与4层纤维复合夹层构件相比,受压区面层为6层的构件的极限荷载增加了23.4%;添加竖向腹板,会使构件的极限承载力提高22.1%。The paper presented the experimental and analytical results of beam-slab integrated composite panels.The four-point bending test results of the beam-slab integrated composite sandwich member showed the influence of the thickness of the fiber layer and the horizontal lattice structure on the failure mode,ultimate load,mid-span deformation and overall stiffness of the sandwich panel.When the fiber lay-up increased from two layers to four and six layers,the ultimate bearing capacity was increased by 213%and 99.8%,respectively,the stiffness was increased by 42.62%and 99.8%.The establishment of horizontal web had little effect on the bearing capacity of components,but it increased the ductility.The finite element model was established to compare with the experimental results.The verified model was used to analyze the influence of the thickness of the pressed surface layer and the longitudinal lattice structure on the structure.The results showed that compared with the four-layer fiber composite sandwich component,the ultimate load of six-layer fiber composite sandwich component was increased by 23.4%;adding vertical lattice could increase the ultimate bearing capacity of the component by 22.1%.

关 键 词：夹芯构件 梁板一体化 弯曲性能 纤维增强复合材料 桥面板 

分 类 号：TU3[建筑科学—结构工程]