The Stability Study Of Thin-walled Steel Curved Beams In Plan

With the application of thin-walled curved beams, people studing on the curved beams from theoretical research to Experimental Study has a great degree of development. But so far, the existing theoretical research finded and experimental results have not yet reached complete reunification, is not enough to form a reliable norms, need further study. On this basis ,this paper is to have the curved beam of a further analysis, expected to find a universally accepted theory to be for everyone.This paper deducted curved beam's linear and nonlinear formula in the first. and then, listed five Typical theories in Abroad. Then, calculated the critical capacity of the curved beams which section was H Species in the concentrated load. This paper made a Comparison on the results form the formula and the results form the existing test results. At last, this paper calculated the critical Moment of the curved beams which section was H Species in the end-moment.and made a Comparison on the results form the formula and the results form the ansys's analysis.The results of the analysis show that the stability derived formula for a series of specific examples, it theoretically with the results of the experimental results are rather close, verify the correctness of the theory of curved beams.