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Corresponding Author

彭卫兵peng wei bing

Abstract

Changxing County in Huzhou City, Zhejiang Province is located in the Taihu Lake Basin. The plain rivers and ports are interwoven, with undulating and dense waterways. Over the past decade or so, a number of various types of steel truss bridges have been established. In recent years, steel truss bridges have been widely used due to their advantages such as a small number of components, light overall self-weight, and fast construction and assembly across waterways. As the service life of steel truss bridges increases, some components show varying degrees of aging and damage, resulting in the structural load-bearing capacity being unable to meet the operational safety requirements. To ensure the driving safety and smooth traffic flow of steel truss bridges under long-term cyclic loads, extend the service life of the bridges, and reduce the cost of periodic maintenance, this paper used unmanned aerial vehicle remote sensing technology to detect the structural surface diseases of a certain steel truss bridge in Changxing County. The research results show that the case bridge has typical diseases such as coating deterioration, steel corrosion, and bolt breakage and detachment. Based on the existing diseases of the steel bridge, the causes of the diseases were analyzed, and the research on preventive maintenance technology was carried out. The maintenance of anti-corrosion coating of steel components, inspection and treatment of welds, treatment of bending and damage of members, and preventive management and maintenance of auxiliary structures such as expansion joints and anti-collision guardrails were proposed.

Publication Date

6-18-2022

DOI

10.14048/j.issn.1671-2579.2022.03.015

First Page

80

Last Page

85

Submission Date

May 2025

Reference

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