Extension of the DSM to welded H profile cross-sections

[en] The objective of the paper is to assess the accuracy of current Direct Strength Method (DSM) equations applied to steel structural welded H shapes in axial compression. Commercialised hot-rolled H sections covering IPE, HE, HD, HL, HP, W and UB profiles and made of three grades (235MPa, 355MPa and 460MPa) were treated in (Li & Rossi 2012). This analysis focuses on welded sections made of the same three grades, including sections characterized by local buckling with a significant post-buckling reserve. The finite element model is described. Then, the results of a parametric analysis using the finite element model are re-ported. The codified resistances are also compared to the numerical results. For each cross-section, the recently developed analytical expressions provided in (Seif & Schafer 2010) for hot-rolled profiles are used to cal-culate the elastic cross-section local buckling stress. A comparison with CUFSM results is also reported. Then, the possibility to use the concept of DSM for the design of structural welded steel shapes is discussed.

Disciplines :

Civil engineering

Author, co-author :

Rossi, Barbara ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo

Li, Yongzhen ; Université de Liège - ULiège > Doct. sc. ingé. (architecture, génie civ. & géol.)

Language :

English

Title :

Extension of the DSM to welded H profile cross-sections

Publication date :

2013

Event name :

The 5th International Conference on Structural Engineering, Mechanics and Computation (SEMC 2013)

Event organizer :

University of Cape Town

Event place :

Cape Town, South Africa

Event date :

du 2 septembre 2013 au 4 septembre 2013

Audience :

International

Main work title :

Research and Applications in Structural Engineering, Mechanics and Computation

Publisher :

CRC Press

ISBN/EAN :

9781138000612

Peer reviewed :

Peer reviewed

Available on ORBi :

since 26 November 2013

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