Key Construction Technologies for Steel Truss Bridges in High Water Level and High Flow Velocity Conditions: A Case Study for Shoupanyan Bridge

Abstract

Temporary steel truss bridges are increasingly used in engineering projects due to the large-scale construction and development of sea-crossing bridges. However, the construction of these bridges is greatly affected by environmental factors and can face significant challenges when dealing with complex conditions such as fast currents, water depth, and large fluctuations in water level. Therefore, advanced construction techniques are necessary to overcome these challenges. This paper discusses the design, analysis, and construction of a steel truss bridge over water under high water level and rapid flow conditions, using the Shupan Yan Bridge construction project as an example. The paper proposes novel techniques for drilled piles, lateral support, and bridge deck structure. Additionally, a detailed finite element model is established. The results of the finite element analysis demonstrate the suitability and practicality of the novel technology design proposed in this study for constructing steel truss bridges in complex water environments. The technology improves safety during construction. The research findings can provide guidance for similar projects.