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。
When doing structural optimization calculations, first-order method is more commonly used, because of it is more sensitive to design variables and Converge faster. The results would be more accurate.
在结构优化设计计算中，一阶方法是较常用的方法，它对设计变量更加敏感，收敛速度快，计算结果更精确。
At the first step, using the synthetic factor method to pre-locate and determine the priority order, which provides the basis for the optimization in the following step;
即在第一阶段运用综合因素法确定预选场址和布局方案，并进行了预排序，给出了各个备选地址间的优劣性，为下一阶段选址提供了很好的依据；
应用推荐