梁底粘贴CFRP加固的新疆杨木梁抗弯试验研究与有限元分析  

Paste the CFRP strengthened beams low beams strengthened Xinjiang poplar experimental research and finite element analysis

作　　者：梁振武 刘清[1] 李珣辉[2] 刘耘[1] 

机构地区：[1]新疆大学建筑工程学院,新疆乌鲁木齐830047 [2]新疆交通职业技术学院,新疆乌鲁木齐831401

出　　处：《四川建筑科学研究》2014年第5期95-99,104,共6页Sichuan Building Science

基　　金：新疆维吾尔自治区高等学校科研计划重点项目(XJEDU2010I10);新疆维吾尔自治区自然科学基金项目(2012211A006);新疆维吾尔自治区高等学校科研计划青年教师科研培育基金项目(XJEDU201208)

摘　　要：通过6根矩形截面新疆杨木梁的抗弯试验和有限元软件ANSYS模拟分析,通过碳纤维布(CFRP)加固新疆杨木梁的抗弯性能的试验研究,分析未加固梁与加固梁的极限承载力、跨中挠度等性能指标。通过有限元软件ANSYS对加固木梁抗弯试验全过程进行数值模拟,得出加固木梁在静力荷载作用下的荷载-挠度曲线、应力-应变云图等。结果表明:在新疆杨木梁的受拉区粘贴CFRP可以明显的改善木梁的抗弯性能,有限元软件ANSYS模拟结果与CFRP加固新疆杨木梁抗弯试验结果基本吻合,验证了选取单元和建模的正确性。The article through 6 rectangular cross-section of Xinjiang poplar wood beams and finite element analysis software ANSYS, Though carbon fiber sheet experimental study on flexural performance of Xinjiang Yang beams reinforcement, analysis of unreinforced beams and reinforced the ultimate bearing capacity of the beam, the mid-span deflection and other performance indicators. The whole process of reinforced timber beam bending test was simulated by the finite element software ANSYS. then, the load-displacement curve and stress-strain nephogram of reinforced timber beam under static load. The result show that： In Xinjiang poplar wood beams tensile region of the paste CFRP can significantly improved flexural performance of beams, the finite element software ANSYS simulation results and CFRP reinforcing Xinjiang Yang beam bending results are basic agreement, it verify the correctness of the selecting unit and modeling.

关 键 词：新疆杨木梁 碳纤维布 抗弯性能 ANSYS 

分 类 号：TU366.2[建筑科学—结构工程]