EFFECT OF WEB HOLES AND BEARING STIFFENERS ON FLEXURAL-SHEAR INTERACTION STRENGTH OF STEEL COLD-FORMED C-CHANNEL SECTIONS

Authors

  • IMAN FARIDMEHR UTM CONSTRUCTION RESEARCH CENTRE (CRC), INSTITUTE OF SMART INFRASTRUCTURES AND INNOVATIVE CONSTRUCTION, UNIVERSITI TEKNOLOGI MALAYSIA (UTM), SKUDAI, JOHOR BAHRU, 81300, MALAYSIA HTTP://ORCID.ORG/0000-0003-3307-3444
  • MOHD HANIM OSMAN UTM CONSTRUCTION RESEARCH CENTRE (CRC), INSTITUTE OF SMART INFRASTRUCTURES AND INNOVATIVE CONSTRUCTION, UNIVERSITI TEKNOLOGI MALAYSIA (UTM), SKUDAI, JOHOR BAHRU, 81300, MALAYSIA
  • MAHMOOD MD. TAHIR UTM CONSTRUCTION RESEARCH CENTRE (CRC), INSTITUTE OF SMART INFRASTRUCTURES AND INNOVATIVE CONSTRUCTION, UNIVERSITI TEKNOLOGI MALAYSIA (UTM), SKUDAI, JOHOR BAHRU, 81300, MALAYSIA
  • ABBAS RAZAVYKIA FACULTY OF MECHANICAL ENGINEERING, UNIVERSITI TEKNOLOGI MALAYSIA (UTM), SKUDAI, JOHOR BAHRU, 81300, MALAYSIA
  • ALI FAROKHI NEJAD FACULTY OF MECHANICAL ENGINEERING, UNIVERSITI TEKNOLOGI MALAYSIA (UTM), SKUDAI, JOHOR BAHRU, 81300, MALAYSIA

Keywords:

COLD-FORMED STEEL, PURE BENDING TEST, DIRECT STRENGTH METHOD, INELASTIC BUCKLING STRENGTH, LOCAL BUCKLING, DISTORTIONAL BUCKLING, NON-DIMENSIONAL SLENDERNESS

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.

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Published

2016-02-27

Issue

Vol. 13 No. 6 (2016)

Section

Articles

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