FRP筋混凝土简支梁试验研究

Experimental Studies on Mechanical Behavior of Concrete beam Reinforced with FRP Rebars

本文通过5根FRP筋和1根钢筋混凝土简支梁三分点加载试验,研究了使用阶段二者之间受弯力学性能的差异,得到了FRP筋混凝土梁的开裂荷载、裂缝分布特征、荷载—变形关系,并根据试验结果及理论分析,提出了FRP筋混凝土梁开裂弯矩计算公式,理论计算与试验结果及文献数据较吻合。

5 simple -supported beams reinforced with FRP rebars and one reinforced with steel rebars were tested in flexure. An experimental and theoretieal eomparison between flexure behavior of these two group beams was investigated, involving eraeking behavior and load - defleetion response. Aeeording to the result of the experiment and the theory analysis, the method to ealeulate the eraek moment is provided. The ealeulating results agree well with the experimental data and available test results.