| The high strength steel composite Y-EBF combines two advantages, the one ishigh strength material-saving, the other is the excellent ductility energy performance oflink beam of EBF structure, which not only can save material, but also has a goodseismic performance, and easy to repair after earthquake, and link beam section canadopt the section different with frame beam section. The link beam of the frameworkwith low yield strength steel, the structure has a good plastic deformation and energydissipation capacity, and to ensure that the link beam before the other componentsyield. Therefore, the study of the structural system in area of high seismic intensity hasa very important significance.In this paper, consider the influence of length various of like beam to the structureseismic performance, we design two1/2reduction specimen, shear yield and bendingyield type, and experiment with monotonic loading and low cycle loading. Lateralstiffness, bearing capacity, failure mechanism and energy dissipation performanceindicators etc, are reserched, and two types of energy in the form of comparativeanalysis, the comparison of the energy dissipation capacity, bearing capacity size canbe obtained.The initial stiffness, yield displacement and ultimate bearing capacity of highstrength steel composite Y-EBF can be get, according the experimental phenomena andcollected data in monotonic loading test. Carrying capacity, deformation, structuralductility and energy dissipation capacity and other factors of the specimen, during thevarious stages of the test, in low cyclic loading test will be obtained. According to thetest results can be drawn: The high strength steel composite Y-EBF with high initialstiffness, bearing and energy dissipation capacity etc advantages. On the basis of this trial, the combination of high strength steel Y-type eccentrically braced steel frameseismic design recommendations for the application of engineering design. |
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