RETROFITTING OF STRUCTURAL STEEL CHANNEL SECTION USING COLD-FORMED STEEL ENCASING CHANNELS BY FEM

  • Miss Renuka Bhausaheb Pawar, Prof. Mayur Singi

Abstract

The retrofitting technique using CFS section transforms the open-channel HRS section to a closed composite (HRS-CFS) section, thereby increasing its torsional rigidity to inhibit failure due to lateral-torsional buckling (LTB). The integrity of the HRS¬¬-CFS section was ensured by adequate spot welding of the CFS section to the HRS at regular intervals along the length of the member. This technique has the advantage of accumulating minimum residual stress (spot welding) in addition to reduced manpower required for section fabrication. The analysis will be carried out by finite element analysis over 28 specimens where 4 HRS and 24 HRS-CFS built up sections will be there with 3 different slenderness ratios L/4, L/6, L/10 & L/15 with two different thickness of cold form section i.e., 1.5mm & 2.5mm. Keywords: cold-formed steel (CFS), hot rolled sections retrofitting, field welding, lateral torsional buckling (LTB)
How to Cite
Miss Renuka Bhausaheb Pawar, Prof. Mayur Singi. (1). RETROFITTING OF STRUCTURAL STEEL CHANNEL SECTION USING COLD-FORMED STEEL ENCASING CHANNELS BY FEM. ACCENT JOURNAL OF ECONOMICS ECOLOGY & ENGINEERING ISSN: 2456-1037 INTERNATIONAL JOURNAL IF:7.98, ELJIF: 6.194(10/2018), Peer Reviewed and Refereed Journal, UGC APPROVED NO. 48767, 6(8), 38-43. Retrieved from https://ajeee.co.in/index.php/ajeee/article/view/2040
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