Upper screw lower connecting pile fastener and precast member

Abstract

The invention involves a kind of tube column to meet the buckle, as well as uses with the time mouth constitution pre-stressed high strength pre- workpiece and -odd in view of the fact that with the between between connection structure and the connection method, is the pre- workpiece to meet buckles with the pre- workpiece manufacture domain. On under the spiral goes against pile extension buckles by pulls the cap nut, inflates the screw and goes against pulls the cap nut constitution, pulls the cap nut screw together in the spiral which inflates the screw wire shorts, inflates the screw the inflation measure expansion in to go against pulls in the cap nut in the inflation cavity, when pile extension, demands the collection attire two maybe certain to pull the cap nut with the between nose minute to buckle goes against pulls the cap nut mouth which corresponds with the prefabrication, inflates the screw the spiral wire shorts screw together in pulls the cap nut screw thread in, Inflates the screw the inflation to carefully examine like goes against pulls the cap nut the inflation cavity also the inflation sells under the function in its nose to inflate in goes against pulls the cap nut in the inflation cavity, completes docking between the pre- workpiece and pre- workpiece.

Description

Technical field: [0001] The invention relates to a pipe pile joint, a prefabricated plate joint, a bridge pier joint, a bridge joint, an electric pole interface and its prefabricated parts, and a pipe pile joint, a prefabricated plate joint, a bridge pier joint and a bridge joint. The prestressed high-strength pipe piles and the connection between the pipe pile and the pipe pile, the connection between the prefabricated slab and the prefabricated slab, the connection between the pier and the pier, the connection structure between the prefabricated pole and the prefabricated pole The connection method belongs to the field of prefabricated part buckle and prefabricated part manufacturing. Background technique: [0002] Authorized announcement number CN2495685Y, name "Prestressed Concrete Pipe Pile Quick Connect", the joint includes two end plates and connecting pins fixedly connected to the upper and pile connection ends respectively, and threaded holes are opened in the end p...

AI Technical Summary

Problems solved by technology

Its shortcomings: First, because the end plate of the lower pile only depends on 6 joint boxes, and the upper pile only depends on the end of the joint box whose volume is smaller than that of the joint box to solidify together with the concrete in the pipe pile, and cannot be integrated with the longitudinal direction of the pipe pile. The steel bar is connected as a whole and cannot form an integral structure with the steel bar framework in the pipe pile. The strength, initiative and reliability of the connection cannot be guaranteed at all, especially when the joint box and the end are impacted by external forces, the joint box and the end cannot be It is impossible to ensure the reliable docking of the upper and lower piles, which is one of the technical problems that cannot be solved in this technical field; the second is the pressure spring in the joint box in the upper and lower pile heads. After the piles go deep into the ground and come into contact with groundwater, corrosion will inevitably occur. The elasticity of the pressure springs will gradually disappear over time, and finally the piles will inevitably break, which will seriously affect the safety factor and safety of the built buildings. This not only exists in the docking of pipe piles and pipe piles in this structure, but also seriously exists in the butt joints of pipe piles and pipe piles in other pipe pile structures. It is the second technical problem that has not yet been solved in this technical field; When it is prefabricated, it is impossible to solve the cracks generated between the upper and lower pile head plates and the concrete and the grout leakage phenomenon caused by the upper and lower pile head plates, so the strength of the concrete is reduced and the piles are prone to breakage. The third unresolved technical problem; the fourth is that the skirts of the upper and lower pile head plates prevent the circumferential steel bars 5-6 circles before the pile from the head plate to be spot-welded on the longitudinal steel bars. When the length produced by the longitudinal extension of the steel bar is such that there is no circumferential steel bar on the longitudinal steel bar several to tens of meters away from the pile head plate, the prefabricated pipe pile will inevitably be broken at its part, which will affect the piling at least. If the quality is heavy, it will cause piling failure. This is the fourth technical problem that this technical field wants to solve, but has not yet been solved; the fifth is that it cannot solve the longitudinal extension consistency of some longitudinal steel bars in the pipe pile, and cannot realize the standardization of strong tensile steel bars. Purpose, the adverse after effects produced are: the inability to ensure the strength of pipe piles and the consistency of the internal quality of several pipe piles are the fifth technical problem that this technical field wants to solve but has not yet been solved; the sixth is the cost of construction High, the manufacturing cost of each pile head plate is as high as 300 yuan, which greatly increases the project cost

Images