Detachable fabricated type prefabricated floor slab steel bar connecting device, structure and method

Abstract

The invention discloses a detachable fabricated type prefabricated floor slab steel bar connecting device, structure and method. The detachable fabricated type prefabricated floor slab steel bar connecting device comprises an upper cover plate, a lower cover plate and a connecting piece. The bottom face of the upper cover plate and the top face of the lower cover plate are both planes, through grooves are formed in the bottom face of the upper cover plate and the top face of the lower cover plate, a plurality of protruding structures are arranged in the through grooves, and after the bottom face of the upper cover plate and the top face of the lower cover plate are buckled, the upper cover plate and the lower cover plate are connected and fixed through the connecting piece. The stability and reliability of the connecting device are guaranteed, the situation that the stress and force transmission performance of reinforcing steel bars is fully exerted is ensured, the reinforcing steel bars at splicing positions are well protected, and corrosion and damage of the reinforcing steel bars are avoided.

Description

technical field [0001] The invention belongs to the field of civil construction engineering, and relates to a detachable and assembled prefabricated floor reinforcement connection device, structure and method. Background technique [0002] With the continuous development of construction industrialization and industrialization, the application of prefabricated structures has gradually become a trend in the field of construction. Traditional cast-in-place slabs have good overall performance, but they do not conform to the trend of building industrialization. Now prefabricated assembled slabs are commonly used, but there are a large number of protruding steel joints in prefabricated slabs. The steel bar joint process is the link with the lowest efficiency and the least industrialization degree in the construction of reinforced concrete structures; at the same time, the quality of the steel bar joints is a key factor that determines the safety of buildings. At present, mechanic...

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Problems solved by technology

However, the existing mechanical connections have the problems of weakening of the reinforcement area and damage to the sleeve and base metal. The reinforcement must be processed in advance before use, but the end is easily damaged during transportation and construction, which seriously affects the quality of the joint.

[0003] The connection problem of small-diameter steel bars in floor splicing cannot be solved only with the existing mechanical connection technology

The threaded connection technology will cause too much damage to the base metal; while the sleeve extrusion connection has a high construction strength, the hydraulic oil of the equipment will pollute the steel bars and it is difficult to clean

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