Abstract
To investigate the failure mechanism of restrained stainless steel H-section columns under axial compression during fire exposure, the mechanical properties of S30408 (EN1.4301) austenitic stainless steel at normal and elevated temperatures were obtained by the tensile tests, and 7 restrained stainless steel H-section columns under axial compression were tested in fire. By high temperature steady-state test, the elastic modulus, ultimate strength, yield strength and stress-strain curve under different temperatures were obtained. Comparing on the mechanical properties of stainless steel at normal and elevated temperatures, the mechanical property reduction factors under different temperatures were proposed. The influences of axial/rotational restraint stiffness ratio, load ratio and slenderness ratio on the fire resistance were analysed. The failure modes, temperature curves, axial displacement curves, mid-span lateral displacement curves, buckling temperatures and critical temperatures of the specimens were presented. The result shows that axial/rotational restraint stiffness ratio, load ratio and slenderness ratio all have great influences on the fire resistance of restrained stainless steel H-section columns under axial compression.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
