Innovative Application of Construction Technology and Structural Health Monitoring System for Half-through Concrete-filled Steel Tube Arch Bridges

Zhiqiang Li

doi:10.6919/ICJE.202506_11(6).0030

Authors

Zhiqiang Li

DOI:

https://doi.org/10.6919/ICJE.202506_11(6).0030

Keywords:

Half-through CFST Arch Bridge; Construction Technology; Structural Health Monitoring System; Innovative Application; Bridge Engineering.

Abstract

This article focuses on the half-through Concrete-filled Steel Tube (CFST) arch bridge, focusing on the innovative application of its construction technology and structural health monitoring system. In view of the important position of this type of arch bridge in modern bridge engineering and the limitations of the existing technology, through the combination of theoretical analysis, numerical simulation and practical engineering cases, the construction technologies such as fabrication and installation of steel tube arch ribs, concrete pouring and suspender tension are innovated and improved. Futhermore, a comprehensive structural health monitoring system is constructed, including sensor arrangement, data acquisition and transmission, data processing and analysis based on wavelet analysis and finite element model updating algorithm. The experimental results show that the new construction technology significantly improves the quality of steel tube arch rib and the efficiency of concrete pouring, and the data of structural health monitoring system is reliable, and the algorithm can accurately assess the structural state. Thus, the innovative application of this article can effectively improve the quality of bridge construction and structural safety, and provide useful reference for the technical development in the field of bridge engineering.

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