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对11根矩形截面新疆杨木梁进行抗弯静力试验,研究在受拉区粘贴碳纤维布加固木梁的抗弯性能,同时对新疆杨木的含水率、顺纹抗拉强度、顺纹抗压强度和局部横纹抗压强度等进行测定。验证平截面假定,并得出破坏特征、极限荷载以及荷载与挠度之间关系等。试验结果表明:在木梁受拉区粘贴碳纤维布是提高新疆杨木梁抗弯性能的有效方法。
Eleven rectangular buckled Xinjiang Poplar Beams were subjected to the bending static test to study the flexural properties of the wooden beams bonded with carbon fiber cloth in the tension zone. Meanwhile, the moisture content, the parallel grain tensile strength, the parallel grain compressive strength And local transverse compressive strength were measured. Verify the cross-sectional assumptions and derive the damage characteristics, the ultimate load and the relationship between load and deflection. The test results show that affixing carbon fiber cloth in the tension zone of the wooden beam is an effective method to improve the bending performance of poplar in Xinjiang.