玄武岩纤维间隔加固新疆杨木方形截面长柱轴心受压力学性能试验研究  

EXPERIMENTAL RESEARCH ON THE MECHANICAL PROPERTIES OF XINJIANG LONG RECTANGULAR-SECTION POPLAR COLUMN STRENGTHENED BY BASALT FIBER ALTERNATELY UNDER AXIAL COMPRESSION

作　　者：王静辉 王广部 张良 韩风霞[3] 刘清[3] WANG Jinghui;WANG Guangbu;ZHANG Liang;HAN Fengxia;LIU Qing(Shenzhen Architectural Design Research Institute Co.,Ltd.,Shenzhen 518031,China;Shenzhen Xinqiyuan Industrial Development Co.,Ltd.,Shenzhen 518000,China;College of Architectural and Civil Engineering,Xinjiang University,Urumqi 830047,China)

机构地区：[1]深圳市建筑设计研究总院有限公司,广东深圳518031 [2]深圳市新启源实业发展有限公司,广东深圳518000 [3]新疆大学建筑工程学院,乌鲁木齐830047

出　　处：《工业建筑》2020年第4期44-48,65,共6页Industrial Construction

基　　金：国家自然科学基金项目(51268054);新疆维吾尔自治区自然科学基金重点资助项目(2012211A006);新疆维吾尔自治区高校科研计划科学研究重点资助项目(XJEDU2012S08)。

摘　　要：针对外粘贴玄武岩增强复材(BFRP)布加固杨木矩形长柱在力学性能上存在差异,分别采用间隔粘贴1层、间隔粘贴2层对木柱进行轴压力学性能试验,获得了长柱破坏形态、极限承载力、荷载-应变关系、荷载-位移关系、延性指标等。试验结果表明:杨木长柱以典型的中部弯曲破坏形式为主,与未加固长柱比较,木柱极限承载力分别提高8.75%、30.00%,横向粘贴BFRP纤维布能有效约束木柱横向变形,提高纵向变形能力,延性得到进一步改善。The mechanical properties of long rectangular section poplar columns strengthened with BFRP fiber cloth are different.By respectively pasting at intervals of 1 layer and 2 layers of BFRP on the poplar columns,the axial compression test was conducted,the failure mode,ultimate bearing capacity,load-strain curve,load-displacement curve,ductility and so on were analyzed.The test results showed that the failure mode of long poplar column was bending failure,compared with the long columns without reinforcement,the ultimate bearing capacity of poplar column was improved by 8.75%and 30%,respectively,transverse pasting BFRP fiber cloth could effectively constrain the lateral deformation of poplar column,improve the capacity of vertical deformation,and further improve the ductility.

关 键 词：玄武岩复合材料 方形长柱 轴压力学性能 延性 

分 类 号：TU317[建筑科学—结构工程]