TY - CONF
T1 - Steel plates in combined shear and moment
T2 - Annual Stability Conference Structural Stability Research Council 2021, SSRC 2021
AU - Wang, Peter Y.
AU - Masungi, Parfait M.
AU - Garlock, Maria E.M.
AU - Quiel, Spencer E.
N1 - Funding Information:
This research was sponsored by the National Science Foundation (NSF) under grants CMMI-1662886 and CMMI-1662964. All opinions expressed in this paper are the authors' and do not necessarily reflect the policies and views of the sponsors. The authors would like to acknowledge Ted P. Zoli for his consultation and conceptualization in this work.
Publisher Copyright:
© 2021 Proceedings of the Annual Stability Conference Structural Stability Research Council 2021, SSRC 2021. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Slender steel plates are susceptible to shear buckling in nearly all of their myriad applications, including plate girders. Traditional strategies to enhance web shear buckling strength include welded stiffeners and corrugated webs, but these are subject to higher fatigue sensitivity and specialized fabrication requirements, respectively. The authors propose a novel strategy, introducing low-frequency sinusoids (LFS) in the web along its length. The LFS have been shown to increase web shear buckling strength substantially with minimal increase in material and greater fabricability. However, their combined shear and moment capacity have yet to be studied. This paper studies various combinations of pure shear, high shear – low moment, pure moment, and high shear – high moment. Experimentally validated finite element analyses are used to determine elastic shear buckling loads and ultimate loads as well as web stress distributions. Results show that LFS have slightly greater moment strength than corrugated webs but less than flat webs; they are thus suitable for high-shear low-moment situations, though additional flange reinforcement may be needed for high-shear high-moment situations.
AB - Slender steel plates are susceptible to shear buckling in nearly all of their myriad applications, including plate girders. Traditional strategies to enhance web shear buckling strength include welded stiffeners and corrugated webs, but these are subject to higher fatigue sensitivity and specialized fabrication requirements, respectively. The authors propose a novel strategy, introducing low-frequency sinusoids (LFS) in the web along its length. The LFS have been shown to increase web shear buckling strength substantially with minimal increase in material and greater fabricability. However, their combined shear and moment capacity have yet to be studied. This paper studies various combinations of pure shear, high shear – low moment, pure moment, and high shear – high moment. Experimentally validated finite element analyses are used to determine elastic shear buckling loads and ultimate loads as well as web stress distributions. Results show that LFS have slightly greater moment strength than corrugated webs but less than flat webs; they are thus suitable for high-shear low-moment situations, though additional flange reinforcement may be needed for high-shear high-moment situations.
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M3 - Paper
AN - SCOPUS:85109259853
Y2 - 13 April 2021 through 16 April 2021
ER -