Effect of Web Holes and Bearing Stiffeners on Flexural-Shear Interaction Strength of Steel Cold-Formed C-Channel Sections

AUTOR(ES)

Faridmehr, Iman, Osman, Mohd Hanim, Tahir, Mamood Md., Razavykia, Abbas, Nejad, Ali Farokhi

FONTE

Lat. Am. j. solids struct.

DATA DE PUBLICAÇÃO

2016-06

RESUMO

Abstract This paper presents an investigation on interaction equation between the required flexural strength, M, and the required shear strength, V, of cold-formed C-channels with web holes and bearing stiffeners. The primarily shear condition test was employed to study total 8 back to back lipped C channel sections of 95 and 100 mm depth when bearing stiffeners and circular holes were placed at center and both ends of specimens. The interaction equation were evaluated via Direct Strength Method, DSM, in accordance with the American Iron and Steel Institute for the design of cold-formed steel structural members, AISI 2007. A nonlinear finite element model was developed and verified against the test results in terms of failure buckling modes. It was concluded that the M-V interaction equation for specimens with web stiffeners was conservative where these specimens experienced plastic failure mode rather than local (Msl) or distortional (Msd) buckling mode. Moreover, the results indicated that proposed M-V interaction equation calculated by local buckling strength (Msl) adequately predicted the behavior of specimens with circular web holes.

Documentos Relacionados

• Reliability analysis of welded and bolted connections in cold-formed steel sections
• Structural Behaviour of Cold-Formed Steel of Double C-Lipped Channel Sections Integrated with Concrete Slabs as Composite Beams
• Experimental analysis of built-up cold-formed steel lipped channel stub column
• Bolted Shear Connectors Performance in Self-Compacting Concrete Integrated with Cold-Formed Steel Section
• Reliability assessment of cold-formed steel beams by the FORM method