The first order optimization method is used to determine the rational construction cable forces and the prearranged Angle of girders.
本文以某千米级斜拉桥为例，采用一阶最优化计算方法来确定斜拉桥的合理施工状态。
Based on first-order optimization calculating theory, authors established the optimal finite element model of swivel construction of arch bridge adopting hydraulic sync elevation technology.
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。
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