| FRP tubes have many advantages for not only lightweight, higher corrosion resistancebut aslo higher heat resistance. It improved the durability of the structure. The concrete filledwith FRP tube are constrained. The last but not least, FRP tube work as permanent formworkfor Structure which is above of the ground.This paper take FRP tube filled with prestressingsteel concrete members as the object of this study.FRP tube filled with prestressing steelconcrete members which arranged every place. The purpose is that the prestressing steel andthe prestressing bar are used fully to reach the ultimate stress.This paper take an research forFRP tube filled with prestressing steel concrete members on account of the steel tube withprestressed rebar concrete members and FRP tubes with concrete column.This paper analyseand discuss the stress performance of FRP tube filled with prestressing steel concretemembers by the theoretical analysis and numerical simulation.Details are as follows:1.this paper puts forward the structural scheme of FRP tube filled with prestressing steelconcrete members and prestressed cable arrangement.2.The formula of ultimate strength for FRP tube filled with prestressing steel concretemembers have gainned on the basis of equilibrium condition of forces Principle.3.The finite element model of FRP tube filled with prestressing steel concrete membershave build.And to verify the finite element model correct or not.4.The prestressed steel cable arrangement, the size of prestressed steel, the concretestrength grade and the size of eccentric distance have treat as control variable. And themechanical behavior of FRP tube filled with prestressing steel concrete members have be agreat research by changing the control variable.The last but not least,the law of themechanical behavior of FRP tube filled with prestressing steel concrete members have begainned.The results show that:The best of the cable arrangements is Unilateral reverse bousso; If the prestress degreebe on a certain range of the whole degree,With the increase of prestress degree, the ultimatebearing capacity is aslo increasing;The more of the concrete strength is greater, Themechanical behavior of FRP tube filled with prestressing steel concrete members is larger, sothe efficiency of material are fully played; The more of the size of eccentric distance,theultimate bearing capacity of the FRP tube filled with prestressing steel concrete members isbe smaller.all of this have a result is that the research results provided the cornerstone for the construction of FRP tube filled with prestressing steel concrete members. |
