参数不确知桥梁结构计算模型的研究

Calculation model research of bridge structure with uncertain parameters

针对某些图纸缺失、外部装饰和连接区域特别处理等因素导致的约束条件难以确定的桥梁结构,提出以多种计算模型对结构进行模拟计算分析的方法,同时根据实测结果与各计算模型计算结果的比较,从中确定该桥梁结构的计算模型.实例分析表明,多种计算模型分析方法对该类桥梁结构分析起到较好的效果.

In the consideration of some bridge structures, it is such factors as lack of design papers, outer ornament and joint forward multiple computing models to compute and analyze b difficult to decide support conditions because of region with special treatment etc. This paper puts ridge structures. On the basis of comparison of measured value to theory computing value, we ascertain the theory computing models of bridge structures. Analysis from a practical bridge structure shows that the method of setting up multiple computing models is effective to analysis of the kind of bridge structure.