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Estimation of maximum admissible precambering of steel beams

Autor(en): (ArcelorMittal Global R&D, Eschsur‐Alzette Luxembourg)
(ArcelorMittal Global R&D, Eschsur‐Alzette Luxembourg)
(University of Coimbra, ISISE, ARISE, Department of Civil Engineering Coimbra Portugal)
Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: ce/papers, , n. 3-4, v. 6
Seite(n): 119-124
DOI: 10.1002/cepa.2463
Abstrakt:

Precambering of steel beams is a common process in construction to induce cold or heat deformation (parabola) to compensate for the deflections due to permanent dead loads and a fraction of a live load. However, the maximum allowable cambering (and consequently the minimum radius of curvature) before buckling of the element is not simple to be defined as it is dependent on the straightness of the beam and on the adopted cambering procedure. The main objective of this study is to describe and validate a numerical procedure (validated with experimental tests of beams with and without holes in the web) to properly assess the maximum load allowable. This numerical analysis was conducted including non‐linear material and geometrical imperfections (GMNIA). The effect of the magnitude of the imperfections as well as the impact of the distance between consecutive load application points have been considered and discussed.

Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.1002/cepa.2463.
  • Über diese
    Datenseite
  • Reference-ID
    10767182
  • Veröffentlicht am:
    17.04.2024
  • Geändert am:
    17.04.2024
 
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