连续刚构桥纵向预应力钢束优化分析

在超静定桥梁结构的系统下,为了使桥梁结构强度、刚度、耐久性满足相关的规范要求,传统的连续刚构桥配束方式通常需要结合初始配束方式进行反复的试算与验算,这样会使连续刚构桥的设计工作量加大,从而降低了工作效率。基于这种情况,可以用算法对纵向预应力钢束的初始配束方式采用合理优化,得到目标函数最优的配束方式,使桥梁设计者减轻了很多任务量。

OPTIMIZATION ANALYSIS OF LONGITUDINAL PRESTRESSED STEEL BRIDGES IN CONTINUOUS RIGID FRAME BRIDGE

In order to make the strength,stiffness and durability of the bridge structure meet the relevant specification requirements,the traditional continuous rigid frame bridge system usually needs to be combined with the initial arrangement method to check and check,this will make the continuous rigid frame bridge design work increased,thereby reducing the efficiency.Based on this situation,the algorithm can be used to optimize the initial distribution method of the longitudinal prestressed steel beam,and obtain the optimal matching method of the objective function,so that the bridge designer can reduce the amount of the task.