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GFRP-钢组合梁桥的荷载试验

, PP. 48-54

Keywords: 桥梁工程,组合结构,荷载试验,GFRP桥面板,有限元

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Abstract:

对国内首座GFRP-钢组合梁桥进行荷载试验,并将荷载试验的实测结果与理论计算结果进行了分析比较。对GFRP桥面板的局部变形进行测量,并与有限元计算值进行对比,分析了在车轮荷载作用下桥面板结构的变形情况与沥青混凝土铺装层的应变状态。结果表明各主梁变形实测值和理论值接近,由车轮荷载引起的铺装层表面拉应力小于沥青混凝土的抗拉极限强度,结构处于安全受力状态。分析结果可为GFRP-钢组合梁桥的设计和应用提供参考依据。

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