Mechanical connection assembly for pile foundation reinforcing steel bars for highway bridge engineering, and connecting method of mechanical connection assembly

Abstract

The invention discloses a mechanical connection assembly for pile foundation reinforcing steel bars for highway bridge engineering. The mechanical connection assembly comprises a sleeve, a reinforcingsteel bar and a fixing sleeve, wherein one end of the sleeve is arranged as a threaded connecting end, and another end opposite to the threaded connecting end is arranged as a guide connecting end; one end of the reinforcing steel bar is matched with the threaded connecting end of the sleeve, and the other end of the reinforcing steel bar is matched with the guide connecting end; the outer diameter, at the guide connecting end, of the reinforcing steel bar is larger than that of a reinforcing steel bar body; the fixing sleeve comprises a sleeve fixing end matched with the sleeve, and a reinforcing steel bar fixing end matched with the reinforcing steel bar, thus rapidly connecting and fixing the sleeve and the reinforcing steel bar; furthermore, the fixing sleeve is high in joint strength, stable in structure and suitable for operation in a vertical direction. The invention also discloses a connecting method of the mechanical connection assembly for the pile foundation reinforcing steel bars for the highway bridge engineering. The connecting method has the advantages of simple steps, convenient construction, wide application scope, and capabilities of realizing rapid connection and fixation between the reinforcing steel bars, accelerating the project progress, and saving manpower and material resources.

Description

technical field [0001] The invention relates to the field of construction engineering, and more specifically, the invention relates to a mechanical connection assembly and a connection method for a pile foundation steel bar of a highway bridge engineering. Background technique [0002] When the existing highway and bridge engineering pile foundation steel bars are connected, mechanical connectors such as straight thread sleeves, tapered thread sleeves or extrusion sleeves are generally used for connection. The tapered thread is suitable for the thread on the inner wall of the sleeve. The two opposite steel bar ends are connected in the sleeve by screwing. The connection procedure is complicated and labor-intensive. A joint requires more than a dozen or even dozens of screwing actions. The connection can only be completed, and it is not suitable for the mechanical connection of a large number of steel bars in the pile foundation of highway bridge engineering in the vertical d...

AI Technical Summary

Problems solved by technology

[0002]The existing highway and bridge engineering pile foundation steel bars are generally connected by mechanical connectors such as straight thread sleeves, tapered thread sleeves or extrusion sleeves. Connection, through processing straight thread or tapered thread at the end of the steel bar to be connected in the early stage, matching with the thread on the inner wall of the sleeve, connecting two opposite steel bar ends in the sleeve by screwing, the connection procedure is complicated, It is manpower-intensive, and a joint needs more than a dozen or even dozens of screwing actions to complete the connection. It is not suitable for the mechanical connection of a large number of steel bars in the pile foundation of highway bridge engineering in the vertical direction. It can be seen that the development of a joint with fast connection speed and High strength, stable structure, wide application range, suitable for connecting components operated in the vertical direction, and the development of a connection component matching the steps is simple, convenient construction, meets the requirements of various technical regulations for steel bar connection, and is suitable for large It is very necessary to connect the mechanical components of the pile foundation reinforcement of the highway bridge engineering pile foundation connected by batches of reinforcement

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