钢管混凝土系杆拱桥的结构检测与评估

Structural Testing Inspection and Evaluation of Concrete-filled Steel Tube Bowstring Arch Bridge

对钢管混凝土系杆拱桥实施了常规检测和动、静载试验,并结合有限元建模与分析,最终对桥梁进行了安全评估。结论为:从荷载试验结果看,桥梁的各项检测指标符合试验规程要求,即当前满足于设计荷载等级,但由于该桥的结构特点,针对现存的安全隐患,应立即组织维修。

The conventional testing inspection,dynamic and static loading experiments are implemented for the concrete-filled steel tube bowstring arch bridge.Based on the finite element model and analysis,the article finally evaluates the bridge security.The conclusion of loading experimental result shows that various testing inspection indexes of bridges conform to the rule requirements of experiment,which currently satisfy the design loading class.However,this bridge has to be maintained immediately according to the existing hidden danger because of its structural characteristics.