Steel bar connecting device for precast concrete component and steel bar connecting method for precast concrete component

Abstract

The invention discloses a steel bar connecting device for a precast concrete component and a steel bar connecting method for the precast concrete component. The connecting device comprises a hoop and a plurality of connecting screw bolts, wherein the hoop is tightly hooped at a connecting part between two steel bars to be connected; the connecting screw bolts are uniformly arranged on the hoop; the hoop comprises an outer hoop body sleeving on two steel bars and three connecting plates arranged at the outer side of the outer hoop body; each outer hoop body is in a 3 shape and is formed by connecting two arc-shaped plates; a plurality of connecting screw bolts are arranged on the three connecting plates; a plurality of screw bolt installing holes through which a plurality of connecting screw bolts are installed are formed in the three connecting plates; the three connecting plates are in parallel arrangement and comprise a first connecting plate, a second connecting plate and a third connecting plate; and two steel bars are tightly hooped between the two arc-shaped plates and the third connecting plate. The connecting method comprises the following steps of: 1, steel bar penetration; and 2, screw bolt tightening. The connecting device and the connecting method have the advantages that the design is reasonable; the use and the operation are simple and convenient; economic performance and practicability are realized; the steel bar connecting process can be simply, conveniently and fast completed; and the connection is reliable.

Description

technical field [0001] The invention belongs to the technical field of construction of prefabricated assembled concrete components, and in particular relates to a steel bar connection device and connection method for prefabricated assembled concrete components. Background technique [0002] Prefabricated concrete components are also called prefabricated concrete structures, and prefabricated concrete is referred to as PC (Precast Concrete). Prefabricated prefabricated concrete components are concrete structures that are assembled, connected and partially cast-in-place with concrete prefabricated components as the main component. Foreign concrete prefabricated components and reinforced concrete started almost at the same time, but industrialized prefabricated concrete components in the modern sense were not really developed until half a century ago. [0003] The development of construction industrialization is the fundamental transformation of the construction production mod...

AI Technical Summary

Problems solved by technology

Among them, when using the lap joint connection method for steel bar connection, the length of the lap joint is generally between 40 and 80 times the diameter of the steel bar, and the consumption of steel bars is large; moreover, when the steel bars are densely distributed, it will also cause concrete pouring and vibration. Difficult to tamp, so that the thickness of the concrete protective layer is uneven

When using the sleeve extrusion connection method to connect steel bars, the sleeve extrusion connection equipment used is heavy, the equipment investment cost is high, and there are defects such as complicated steel bar connection process, high labor intensity, and slow connection speed.

When the threaded sleeve connection is used to connect the steel bars, the alignment accuracy of the steel bars to be connected is high, and it is difficult to achieve accurate alignment when connecting, which is labor-intensive and time-consuming.

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