大跨度悬索桥索夹螺杆张力检测与思考

Testing and Thinking on the Tension of Screw Clamp of Long-Span Suspension Bridge

近年来,悬索桥以其优良的跨越能力和较佳的可观赏性得到了广泛的应用。论文重点介绍了国内悬索桥索夹滑移的病害及成因,结合规范要求阐明索夹螺杆张力的确定方法和索夹螺杆张力的测试工艺,分析了超声测试方法的精度影响因素,并结合某悬索桥测试结果,给出了国内悬索桥索夹螺杆张力养护工作的结论和建议,为国内类似桥梁的养护提供了宝贵的经验。

In recent years,suspension bridges have been widely used due to their excellent spanning ability and better viewing.This article focuses on the diseases and causes of domestic suspension bridge cable clamp slippage,combined with the requirements of the specification to clarify the determination method of the cable clamp screw tension and the test technology of the cable clamp screw tension,analyzes the factors affecting the accuracy of the ultrasonic testing method,and combines it with a suspension bridge test.As a result,the conclusions and recommendations of the maintenance work of the cable clamp screw tension of domestic suspension bridges are given,and valuable experience is provided for the maintenance of similar domestic bridges.