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To better understand the response of stainless steel plate girders loaded in shear, an experimental campaign was carried out at UPC as a part of extensive research on shear behaviour of stainless steel girders.A total of 8 stainless steel plate girders were tested. The primary design variables were, apart from the aspect ratio and slenderness of the web panel, the rigid or non-rigid condition of the end post. In parallel, a numerical model was developed in code ABAQUS [Hibbit, Karlsson and Sorensen Inc., ABAQUS/Standard, Version 6.3. User’s manual. Rhode Island (USA); 2002]. The tests results served as a basis for calibration of numerical models and furthermore for the development and verification of a new approach to structural stainless steel design.Different responses and modes of failure in shear were observed and special attention was taken of the effect of the rigidity of the end post during the analysis of results. The comparative analysis of the experimental results with current codes’ approaches clearly shows that shear design procedures included in Eurocode 3 Part 1.4 [European Committee for Standardisation. ENV 1993-1-4. Eurocode 3: Design of steel structures. Part 1.4: General rules—supplementary rules for stainless steel. Brussels; 1996], which specifically deals with stainless steel structures, are overly conservative. 相似文献
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Hyung-Keun Ryu Seok-Goo Youn Young-Ki Lee 《Journal of Constructional Steel Research》2006,62(9):847-855
In this research, the flexural behaviour of composite girders under non-monotonic service loads and the bending capacity of composite girders with Class 3 section were studied through experimental work. Three specimens were fabricated and, through the 4-point flexural test, the stiffness and strength of the composite girder under hogging moments were observed. Test specimens were overhanging simple support beams, in total 6 m long. From the test results, the deflection, stiffness, moment-curvature relationship, and strain distribution of the composite girder section under service and ultimate loading were analyzed. The flexural behaviour under reloading-unloading cycles and tension stiffening effects on the mechanical behaviour of composite girders were discussed. The ultimate strength of composite girders with different Class flange sections and a same Class web section were also studied. Test results were analyzed by design equations in Eurocode 3 and 4 for flexural stiffness and sectional resistances. Also, a new simple design equation for the bending capacity of composite girders with Class 3 sections was suggested. 相似文献
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