钢桁连续刚构桥模型简化方案

特大桥梁模型试验规模较大，制作、测试均较复杂，因此，需要在尽可能反映实桥真实应力的情况下简化试验模型。通过不同模型方案计算分析后得知，在一定的边界条件下，钢桁连续刚构桥全桥一半模型完全能够真实地反映实桥受力状态。这样就能将模型所需的资源减小一半，而且可以在有限的试验室空间内将模型尺寸相对做大。

Model simplification of steel truss continuous rigid frame bridge

Model experiment of large bridge requires large space and is extremely complicated in terms of fabrication and testing. Therefore, testing model must be simplified as much as possible on condition that it still reflects stress state of real bridge. Through calculation and analysis of different models, it has found that half bridge model can fully reflect the stress state of real bridge under given boundary conditions. Thus experiment resource is halved and testing model can be relatively bigger in the limited laboratory space.