Abstract
In this study, titanium-clad bimetallic steel (TCBS) was innovatively introduced into the plate girder as a web, which enhanced the durability. The ultimate strength of a longitudinally stiffened TCBS plate girder under patch loading was investigated. There were clear differences in the nonlinear properties of the stress–strain curves of Q235 carbon steel, TA1 titanium, and TCBS. The numerical modeling method was verified via an experiment on a TCBS plate girder. A parametric study was performed on the ultimate strength of a longitudinally stiffened TCBS plate girder. The key parameters selected in this study included the position of the longitudinal stiffener, web aspect ratio, web slenderness, and relative load length. The variations in the ultimate strength and the buckling reduction coefficient were examined. The results indicated that the effects of the key parameters on the ultimate strength were clearly different from those on the buckling reduction coefficient. Additionally, the design equations in EN 1993–1–5 were too conservative to be suitable to predict the ultimate strength of the TCBS plate girders subjected to patch loading. Based on the numerical results, a predictive equation for the buckling reduction coefficient of a longitudinally stiffened TCBS plate girder under patch loading was devised. Compared with design equations in EN 1993–1–5, the proposed equation showed better accuracy.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.