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Abstract

The inspection and evaluation of the load-bearing capacity of in-service bridges are crucial for ensuring structural and operational safety. This paper investigates a 90 m span hollow-box arch bridge, assessing its damage condition, material properties, and state parameters to determine partial evaluation coefficients. The bridge’s ultimate limit state and serviceability limit state load-bearing capacities of the main arch ring were then evaluated using both the original design standards and the current code. The results show that, compared to the original design standards, the safety factor for the compressive load-bearing capacity of the main arch ring cross-section is significantly reduced when evaluated with the current code. In addition, deflection under vehicle load increases noticeably, indicating an insufficient safety reserve in the main arch ring’s load-bearing capacity. This finding warrants serious attention.

Publication Date

5-11-2023

DOI

10.14048/j.issn.1671-2579.2023.02.022

First Page

121

Last Page

125

Submission Date

March 2025

Reference

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