scholarly journals Numerical Study on Required Stiffness of Longitudinal Stiffener in Plate Girders

2016 ◽  
Vol 28 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Kun Joon Lee ◽  
Yong Myung Park ◽  
Byeong Jun Kim ◽  
Chan Hee Park
Keyword(s):  
Numerical Study ◽  
Plate Girders ◽  
Longitudinal Stiffener

scholarly journals SHEAR BUCKLING EVALUATION IN STEEL PLATE GIRDERS WITH RIGID END POSTS SUBJECTED TO ELEVATED TEMPERATURES

2016 ◽  
Author(s):  
André Reis ◽  
Nuno Lopes ◽  
Paulo Vila Real
Keyword(s):  
Elevated Temperatures ◽  
Steel Plate ◽  
Numerical Study ◽  
Ultimate Shear Strength ◽  
Plate Girders ◽  
Aspect Ratios ◽  
Wide Range ◽  
Geometrical Imperfections ◽  
Shear Buckling ◽  
Steel Grades

The current study intends to analyse the behaviour of steel plate girders with rigid end posts subjected to elevated temperatures, aiming the assessment of the ultimate shear strength in case of fire. A parametric numerical study was performed involving a wide range of cross-section’s dimensions, plate girders’ aspect ratios and steel grades. Plate girders were numerically tested at both normal and elevated temperature, being considered three different uniform temperatures. The influence of the geometrical imperfections, as well as the residual stresses, was taken into account. Finally, the numerical results were compared to the Eurocode 3 (EC3) prescriptions, adapted to fire situation by the direct application of the reduction factors for the stress-strain relationship of steel at elevated temperatures. It was shown that the EC3 design rules should be improved because they are not conservative, conducting to unsafe results.

Numerical study of slender I-girders with one longitudinal stiffener under patch loading

2020 ◽  
Vol 167 ◽  
pp. 105964
Author(s):  
Felipe Eduardo Demari ◽  
Gustavo Prates Mezzomo ◽  
Zacarias Martin Chamberlain Pravia
Keyword(s):  
Numerical Study ◽  
Longitudinal Stiffener ◽  
Patch Loading

scholarly journals Numerical study on reduction of the elevated structure noise by surface absorption on plate girders

2009 ◽  
Vol 70 (9) ◽  
pp. 1143-1147 ◽  
Author(s):  
Kazutoshi Michishita ◽  
Zenzo Yamaguchi ◽  
Noboru Nakajima ◽  
Kimihiro Sakagami ◽  
Masayuki Morimoto
Keyword(s):  
Numerical Study ◽  
Surface Absorption ◽  
Plate Girders ◽  
Elevated Structure

scholarly journals Experimental and numerical study for the post buckling behaviour of plate girders subjected to bending and shear

2018 ◽  
Vol 162 ◽  
pp. 04027
Author(s):  
Wael Shawky ◽  
Ghaidaa Nabil
Keyword(s):  
Shear Strength ◽  
Ultimate Load ◽  
Numerical Study ◽  
Steel Plates ◽  
Strength Analysis ◽  
Ultimate Shear Strength ◽  
Concentrated Load ◽  
Plate Girders ◽  
Post Buckling ◽  
Plate Girder

This research offers experimental and numerical study for the ultimate strength analysis and post buckling behaviour of plate girders subjected to shear and bending stresses. Two Plate girders of length 2.5m are designed consisting from three separate structural steel plates welded together to form I - section. The dimensions of the first girder section is 512 mm × 120 mm while the second girder section is 412mm × 120 mm. Mechanical properties for plate girders components were found by testing three samples of each plate. The ultimate shear strength was found by examining two plate girders in the laboratory under concentrated load applied at the middle span. A numerical study of the tested plate girders was carried out by using the software program (ANSYS) to study the behaviour of girders steel under the influence of loads application. The results showed that the ratio of the experimental ultimate load strength to the numerical ultimate load strength is 97% 94% for plate girders 1 and 2 , respectively. For the part of using theoretical study. The results obtained from the equations , it was observed that the ratio of the experimental ultimate load strength to the theoretical ultimate load strength is 83% for plate girders1 and 90% for the plate girder 2.Through comparison between experimental, numerical and theoretical results it was observed good andacceptable agreement. Thus confirming the accuracy of the modelling between this methods and obtain convergent results in all cases. Also it was found when an increase in the depth of the web has effect in increasing the ultimate shear strength for plate girder by about 19%.

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