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优化计算在拱桥液压同步提升转体施工控制中的应用

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Keywords: 桥梁工程,拱桥,一阶最优化计算理论,液压同步提升,转体施工,索力

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Abstract:

？根据一阶最优化计算理论,构建了采用液压同步提升技术进行转体施工拱桥的优化有限元模型。指定各吊点提升索力大小为设计变量,将结构物特定点的空间坐标设为目标函数,液压同步提升技术的控制要求则设为约束条件,通过对目标函数的优化处理,求解各竖转角度下的结构受力,并通过算例和现场试验予以验证。结果表明:该方法能有效节省计算工作量,在采用转体技术施工的桥梁施工控制中有着广泛的工程应用前景。

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