Study On The Performance Of Box Girder Transfer Story With Corrugated Web

With the broad construction of rail transit,in order to enhance land utilization of transport node,it's necessary to conduct a secondary development and construction in the car depot.To meet its constructive requirements,a transfer story between the metro depot and the re-developed building is indispensable.With a large span and complicated loading states,in the whole structure,the transfer story belongs to the weak link.As a consequence,carrying on a investigation into the transfer story is significantly requisite.This article revolves around the research object,namely,the steel-frame construction above the car depot in Qianhai,Shenzhen.Taking advantage of YJK structure computation software,according to the current design specifications,we designed and calculated the whole structure of the transfer story with flat box beam web and obtained the internal force and deflection of flat web boxed beam transfer story.Afterwards,the load could be received by inverse computation method,which provides data for analyzing box beam transfer story separately.Beam with corrugated web perfectly applies to long-span structure.Given that it has a series of advantages,such as relatively higher shear yield strength,out-of-plane stiffness,flexural rigidity and integral stability bearing capacity,This paper try to use the beam with corrugated web as conversion component,and compare with the flat web boxed conversion beam.Taking flat web boxed conversion beam and corrugated web boxed conversion beam as the research object,we analysis its static behaviors by ANSYS finite element software.Stress and strain diagram,load-deflection curves of two boxed beam conversion layers are received.We analysis the mechanical property by above information.After that,we made a research on their mechanical performance under the situation of cyclic loading,drew load-displacement hysteretic curve and skeleton curve and ultimately analyzed their hysteretic behavior,ductility and energy-dissipating capacity.On the basis of the static analysis,we can roughly come to a conclusion that the corrugated web boxed conversion beam owns a more evenly distributed stress and strain,while the flat web boxed conversion beam has stress concentrating in the beam flange and column connection;The plastic hinge of the box girder with corrugated transferfloor appears near the beam end,meeting the requirements of "strong column and weak beam" and "strong node weak component".On the contrary,the plastic hinge of the flat box beam web transformation layer is closer to the node,which may be a hidden danger.In accordance with the hysteresis analysis,both the two types boxed beam have a certain degree of shock resistance and energy-dissipating capacity.By contrast,the corrugated web boxed beam has a relatively better ductility,energy-dissipating capacity and bearing capacity.