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为了研究采用玻璃纤维增强筋作为配筋材料的混凝土桥梁面板的工作性能,结合板内的压缩薄膜效应对该结构类型在交通荷载作用下的工作性能进行了非线性有限元分析。通过对已建的GFRP筋混凝土桥梁结构、现行GFRP筋桥梁面板设计规范和数值模拟结果的比较分析,可以发现由于压缩薄膜效应的作用,实际的桥梁面板中所需的配筋率要远低于规范的计算结果。基于所建立的非线性有限元模型与试验结果有着良好的吻合,对结合了压缩薄膜效应进行设计的GFRP筋混凝土桥梁结构的工作性能进行了分析。分析结果表明,该非金属桥梁结构在交通荷载作用下有着良好的工作性能。
In order to study the working performance of concrete bridge panels with glass fiber reinforced ribs as reinforcement material, the nonlinear finite element analysis of the performance of the structure type under traffic load was carried out with the compression film effect in the panel. Through the comparison and analysis of the design rules and numerical simulation results of the existing GFRP tendon concrete bridge structure and the existing GFRP tendon bridge panel, it can be found that the required reinforcement ratio in the actual bridge panel is much lower than that of the compressive film effect Specification of the results. Based on the good agreement between the nonlinear finite element model and the experimental results, the working performance of the GFRP reinforced concrete bridge structure with compressive film effect is analyzed. The analysis results show that the non-metallic bridge structure has good working performance under traffic load.