Interactive shear buckling of corrugated webs (Exprimental work).pdf (original) (raw)
2016, Asmaa Yasseen Hamed
This paper focuses on behaviour of the interactive shear stress of corrugated steel webs with trapezoidal corrugations experimentally and analytically Proposed interaction equation, which based on local buckling of the corrugation fold as isotropic flat plates, global buckling of the entire web panels as an orthotropic plate, and steel yielding of the web is presented. Four beams with corrugated steel webs were tested to failure under shear; the failure was due to buckling of the web. Finite element method (FEM) was used to perform nonlinear analysis to the models of the test specimens to determine ultimate load of these girders. Comparisons between the results from the proposed equation, the finite element analysis, and the tests are satisfactory. A new formula by the author is developed, which considers interaction among the various shear failure modes. The conditions of many of these tests are found to be inconsistent with the theoretical conditions assumed in deriving the shear strength formulas. The various formulas for predicting critical shear stress are then compared with selected test results.
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