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小跨径板梁桥承载力多采用实桥荷载试验法或依据有关规范规定的计算分析评定法,存在周期长、干扰大、计算复杂、费用高等不足。采用小跨径板梁桥承载力快速评定模型方法,首先现场调查上部构造基本结构尺寸以及结构病害参数,然后结合理论计算,实现承载力的快速分析与定量评定;并以云南省某板梁桥为例,应用本快速评定方法进行了承载力评定,与实桥荷载试验法的评定结果一致。本方法在数量众多的小跨径板桥梁承载力评定中具有一定的推广使用价值。
Load carrying capacity of small-span plate girder bridge more use of real bridge load test method or calculated according to the relevant provisions of the analytical method, there is a long cycle, interference, computational complexity, high cost. The method of rapid assessment of bearing capacity of small-span slab-beam bridges is adopted. Firstly, the basic structure dimensions and structural parameters of the upper structure are investigated on site. Then the theoretical analysis is carried out to realize the rapid analysis and quantitative assessment of the bearing capacity. For example, the method of this quick assessment of the bearing capacity assessment, and the real bridge load test results of the assessment of the same. The method has a certain value of popularization and application in the evaluation of bearing capacity of a large number of small-span plate bridges.