Calculation Method of Pushing Force for Multi-span Continuous Rigid Frame Bridge Closure Based on Linear Programming

At present, there is a significant shortcomings for solving multi-cross-continuous bridge, and the rigidity: (1) The analysis of the principle of combined mechanics is only applicable to conventional three-cross-continuous frame bridge, and multi-cross-continuous bridge overhead There are many times, it is difficult to seek the analysis; (2) Other methods are repeatedly tried more than the finite element software, with random, difficult to find the optimal solution, and multi-cross-continuous rigid bridge top push must be satisfied Multiple target values and constraints, so that it is difficult to solve the difficulty in solving the trial algorithm.