通过对梁拱组合式桥梁成桥状态目标的优化分析，可以得到不同施工阶段合理的吊杆内力。
Rational internal force of hangers under different construction stage can be obtained through optimization analysis of the object under the finished bridge condition of the camber composite bridge.
在拱梁组合桥梁设计和施工分析中，确定成桥状态时的吊杆张拉力非常关键。
In design and construction of composite arch and Beam bridge, it is very important to determine the boom tensile force when the bridge is almost completed.
因此在对悬索桥作施工全过程动力特性分析之前，必须首先计算各状态的主缆轴力和几何形状。
Therefore, the cable tension and shape have to be calculated for each construction stage before analyzing its dynamic behaviour.
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