Nonlinear 3D finite element modelling of conventional and composite steel spaceframes structures

Haitham H. Muteb, Harith Al-Salman


Spaceframes steel structures are a common worldwide technique for roofing wide areas. In this study, after validating one of the models experimentally, nonlinear 3d finite element modelling were performed to analyze failure mechanism of space frames models with the help of Abaqus program. Additionally, this study attempts to convert such common roofing structure to a composite structure using ultra high strength concrete slab to withstand various floor loads. Various space frames shaft angles were tested, namely, 30, 45, and 60. Tests results were evaluated and compared in term of ultimate load, load at maximum displacement, toughness, and stiffness. Tests results have shown that spaceframes models with angle 60 have the highest load capacity compared to other angles, and highest toughness compared to various techniques. Also, compositing 40 mm of ultra-high-performance concrete slab method has approved its efficiency to withstand loads and showed comparable results with the conventional spaceframes. the composite systems with sufficient concrete slab thickness and strength have reflected an efficient technique for flooring wide span structures.


Spaceframes, concrete Composite Spaceframes, Ultra high-performance concrete, Finite element Analysis, Abaqus.

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ISSN: 2303-4521

Digital Object Identifier DOI: 10.21533/pen

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License