某钢管砼拱桥静载测试分析

A Study of Artificial Combination Earthquake Waves

铭选大桥主孔为９０ｍ净跨的钢管砼中承式拱，大桥建成后进行静载测试．对测试结果进行了整理，并与理论计算进行对比分析．结果表明，该桥在试验活载作用下处于弹性阶段，服从平截面假定，材料非线性和几何非线性影响很小．

In this paper, based on the actual engineering, liner methods of superposition with a stochastic phase angle cosine function of uniform distribution are selected as a mathematial model to be combined into earthquakewaves to meet the needs of the actual engineering. The model not only is able to meet the three essential factors of the earthquake wave, but is linked up with the response spectrum method in current code. Based on the mathematical pattern offered, the corresponding program, which has being applied to actual engineeing, is drawn up.