| Profiled metal sheets are widely used and the late-model sections and exceptive model sections have been ceaselessly coming forth. But the test dates of profiled metal sheets are minor in China. The main purpose of this paper is to realize the section properties and moment capacities of profiled sheets by experimental study and academic analysis for three types of profiled metal sheets which are called U450, U860and Super Combination Profiled Metal Sheets produced by Shanghai Baosteel Metallurgical Construction Corporation. Its main contents include:(l) According to "European Recommendations for the Testing of Profiled Metal Sheets", the moment capacities of 32 full-size U450 and U860simple and continuous specimens are tested. (2) Using the finite element program ANSYS and nonlinear finite element method, the moment capacities of Super Combination Profiled Metal Sheets profiled are analyzed. Large deflection of shell elements and elastic-perfectly plastic model of materials are involved in the analysis, and the effect of initial imperfection is also considered. As a result, the curves of load-deflection and the ultimate load Pmax are obtained. The section properties are obtained by the slope of the curves of load-deflection and the ultimate loads. The theoretical analysis results are compared with the results of experimental study by TONGJI UNIVERSITY. The conclusions of experimental study and the theoretical analysis presented in this paper are adopted by Shanghai Baosteel Metallurgical Construction Corporation as the technique base of production application. |