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Study on the Correlation Between Geometric and Mechanical Properties of Parallel Truss Bridges

Author(s)

Wu Jiangchen

Affiliation(s)

Central South University, Changsha, Hunan, China

Abstract

Truss bridge is a widely used structural form in bridge engineering, whose main feature is to realize the support and stability of the bridge by truss structure. The structure of truss bridge consists of a series of truss units, which are connected by rods of steel or other materials with triangles as the basic members. In terms of geometric performance, the geometric design of parallel truss bridges involves the arrangement of truss units, length of rods, and node connection methods. Parallel truss structures are usually characterized by symmetry and uniform distribution, which makes their geometric performance show better stability and consistency in large-span bridges. This paper reveals the key role of structural geometry on bridge performance by comparatively analyzing the effects of different geometric parameters on the overall stability and deformation characteristics of bridges. As for mechanical properties, the mechanical properties of parallel truss bridges include load distribution, stress distribution, stiffness and strength. Studies have shown that parallel truss bridges can effectively distribute and transfer stresses when subjected to static and dynamic loads, thus improving the load carrying capacity and deformation resistance of bridges. In this paper, the mechanical response of parallel truss bridges under actual loading is discussed in depth, which reveals the mechanical behavior of truss units and their influence on the overall performance of bridges.

Keywords

Truss Bridge; Geometric Properties; Mechanical Properties; Load Distribution; Load Carrying Capacity

References

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