Upper-screw-lower-top expansion meshing body pile-connecting fastener and prefab

Abstract

The invention refers to the methods of making the pipe stake interface, prefabricate part consisted of the interface of the prefabricate part, the connection instruction between the prefabricate parts and prefabricate part. Top screw blow tip inflation mesh connection interface comprises inflation draw screw cap; the inflation mesh the screw; peak draw screw cap and inflation pin. The inflation draw screw cap connects to the screw part of the inflation mesh the screw. When they are face to face connected, the mesh gear of inflation mesh the screw inflate mesh in the inflation mesh cavity of the peak draw screw cap by the role of the inflation pin, the pre-make part which is made of top screw blow tip inflation mesh connection interface has the inflation draw screw cap and the top draw screw cap inserted in the two ends respectively. Many items of the portrait reinforcing steel bar's two ends clip to the steel cap of the inflation draw screw cap and the peak draw screw cap respectively. The inflation mesh screw cap used to the connection between the pre-make parts.

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 pipe pile 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 bridge pier and the bridge pier, the connection structure between the prefabricated pole and the prefabricated pole and the production of prefabricated parts The method belongs to the fields of prefabricated part fastening and prefabricated part manufacturing. Background technique: [0002] Authorized announcement number CN2495685Y, name "concrete pipe pile quick connector", the joint includes two end plates and connecting pins fixedly connected with the upper and pile connecting ends respectively, and a threaded hole is opene...

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

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