钢管混凝土拱桥安全性评价的SVM机器模型

Safety evaluation of concrete filled steel tube arch bridge based on support vector machine

从影响钢管混凝土拱桥安全性的承载能力、承重构件损伤以及外观损伤等3个主要方面进行考虑,建立高度非线性的输入与输出的映射关系。引入SVM方法,建立了钢管混凝土拱桥安全性评价的SVM机器模型。通过仿真得到桥梁承载能力、承重构件损伤、外观损伤以及成桥状态下最终的安全性信息。将建立的模型应用到实际桥分析中,较好地评价了钢管混凝土拱桥结构的安全性状况。

To gain the result of the safety assessment of CFST arch bridge,based on the traditional safety evaluation methods,a support vector machine model of safety evaluation method was presented.With consideration of several key factors which affect the whole safety state such as load bearing capability,damage of bearing component and damaged state of appearance,a support vector machine model were established and trained by checking samples gained from the data measured on the spot.Finally,the whole safety evaluation of load bearing capability,damage of bearing component,damaged state of appearance and completed state of arch bridge were gotten by the method of simulation.The result of safety evaluation one practical Bridge shows that the approach is highly potential and practical to evaluate the safety of long-span concrete filled steel tube arch bridge.