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钢-混凝土组合箱梁桥杆系模型的工程应用

Keywords: 桥梁工程,钢-混凝土组合箱梁桥,荷载试验,杆系模型,工程应用

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Abstract:

?为了研究组合箱梁桥杆系模型的准确性和适用性,将杆系模型应用于实际钢-混凝土组合箱梁桥的设计分析中,首先介绍了1座直线和1座曲线连续组合箱梁桥的荷载试验情况,之后建立了2座实桥的精细模型和杆系模型,并将精细模型、杆系模型与荷载试验实测结果进行综合对比分析。结果表明:实测结果对于精细模型的挠度校验系数在0.5~0.8之间,应力校验系数在0.5~0.9之间,而杆系模型与精细模型的计算误差在±10%以内,充分证明了杆系模型的精确度与合理性,证实了杆系模型适用于组合箱梁桥;研究成果可为组合箱梁桥的设计和分析提供有效的数值工具。

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