Finite Element Analysis Of Mechanical Behavior Of Combination Of High Strength Steel Single Layer Single Span Y-EBF

Combination of high strength steel Y-EBF has excellent seismic behavior, in whichlinks using low strength steel to ensure structure has a good ductility and energydissipation capacity, and other members using high strength steel in order to savematerial and reduce cost. So for high intensity earthquake areas the research of thestructure has extremely important significance.Based on the FEM ABAQUS software, combination of high strength steel Y-EBFare studied systematically in this paper by establishing of a1/2scale specimens andcarried on the analysis of monotonic loading and cyclic loading, and compared with thetest results which we did. The finite element results coincides with the test result, so itcould provide a basis for the follow-up parameter analysis.This paper applies nonlinear finite element method to analyze the mechanicalbehavior of combination of high strength steel Y-EBF under monotonic loading andcyclic loading. The major parameters including links’ length, thickness of links’ web,height of links’ web, distance of links’ stiffened plate and different material steelcombination are studied. The results show that: The link’s length which in the range of(0.7~1) Mp/Vpcan make the whole seismic-resistant performance fully developed; Asthe thickness and height of the links’ wed increases, the overall mechanical of thestructure are increased. Considering comprehensive factors in the actual engineering,we should choose the optimal height and thickness of web to meet the specification;Distance of the links’ stiffened plate is greatly influencing stress of the links’ web. Thesmaller stiffened plate spacing is, the more uniform stress distribute and the smaller themaximum stress is; In the condition of the same cross section, the mechanical behavior of combination of high strength steel Y-EBF is better than that of common Y-EBF, andcompared with several frames of different strength steel, we can find that the specimencombined by Q235steel and Q460steel has the best overall mechanical performance.