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Assessing the Impact of Changes on Design and Material of Howe Bridges by Finite Element Analysis

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  • Jairo Aparecido Martins
  • Estaner Claro Romão

Abstract

This paper presents an investigation of changes on design and material of a Howe bridge under vertical loads. Specifically, it aimed to find out how small changes on Howe bridge design and material affected von Mises stresses as well as stresses at Z direction. As a method, it was used a finite element analysis (linear-elastic) by Autodesk F-360. Half of a bridge was designed (one bridge side) and loaded with a central higher load and two equal smaller lateral loads. In essence, von Mises stresses (s) and stress at Z direction (sz) decreased on stresses values until a certain design change, which was proportional to a raise of mass due to beams added on the trusses. With a change of material to a lighter metal, from steel to aluminum, it was possible to overcome the mass drawback brought by steel and utterly possible to end up for a more effective design for a Howe truss bridge by applying minimal design changes.

Suggested Citation

  • Jairo Aparecido Martins & Estaner Claro Romão, 2021. "Assessing the Impact of Changes on Design and Material of Howe Bridges by Finite Element Analysis," European Journal of Applied Physics, European Open Science, vol. 3(3), pages 33-37, May.
    • Handle: RePEc:epw:physic:v:3:y:2021:i:3:id:11082
    DOI: 10.24018/ejphysics.2021.3.3.82
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