Assessment method and system of in-service inhaul cable and sling structure system

Abstract

The invention discloses an assessment method and system of an in-service inhaul cable and sling structure system. The method includes the steps of obtaining on-site detection data of the in-service inhaul cable and sling structure system formed by connecting a first sub system, a second sub system and a third sub system in series, wherein the first sub system is composed of outer protective sleeveassemblies, the second sub system is composed of cable bodies on the damaged parts of outer protective sleeves, and the third sub system is composed of steel wires or steel strands in a lower anchoring area; according to the on-site detection data, the first sub system, the second sub system and the third sub system, determining a service life curve of the outer protective sleeve assemblies, a first corrosion curve of the cable bodies on the damaged parts of the outer protective sleeves and a second corrosion curve of the steel wires and the steel strands in the lower anchoring area; according to the curves above, comprehensively determining the reliability and risk degree of the in-service inhaul cable and sling structure system. By means of the method or system, each inhaul cable and sling structure assembly in an actual inhaul cable bridge is taken into consideration, the reliability and risk degree of inhaul cables and slings are comprehensively evaluated, and the evaluation precision is improved.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to an evaluation method and system for in-service tension and suspension cable structure systems. Background technique [0002] In the 21st century, with the rapid development of economy and technology, infrastructure construction has also advanced by leaps and bounds. The span of cable-stayed bridges has exceeded 1000 meters, such as the Shanghai-Shanghai-Tongtong Railway Bridge with a main span of 1092m, and the concrete-filled steel tube arch bridge has also exceeded 500m. Nanjing Dashengguan Bridge. Bridges across rivers, rivers, and seas are rising one after another. For bridges that cross larger rivers, rivers, and oceans, cable-stayed bridges are often the bridge type favored by designers. Such as Sutong Yangtze River Bridge, Donghai Bridge, Hong Kong-Zhuhai-Macao Bridge, Xiamen-Zhangzhou Cross-sea Bridge and the second Humen Bridge in Guangdong under construction. These br...

AI Technical Summary

Problems solved by technology

With the development of science and technology, as well as the in-depth study of structure enhancement and reliability theory, it is found that the reliability of structure points does not guarantee the reliability of the whole system.

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