Deformed steel bar and prestressed tendon connector and construction method for connection using same

Abstract

A deformed steel bar and prestressed tendon connector comprises a connection anchor plate, clamping pieces I and II, hollow bolts I and II, and columnar elastomers I and II. A conical hole I, a conical hole II, an inner threaded hole I and an inner threaded hole II are formed in the two end faces of the connection anchor plate correspondingly. The conical hole I and the conical hole II are used for installing the clamping piece I and the clamping piece II. The inner threaded hole I and the inner threaded hole II are used for installing the hollow bolt I and the hollow bolt II. The taper directions of the conical hole I and the conical hole II are opposite. The hollow bolt I and the hollow bolt II are of a center-penetrating type and are provided with outer threads. In an installation state, a prestressed tendon and a deformed steel bar penetrate through inner holes of the hollow bolt I and the hollow bolt II correspondingly. The clamping piece I and the clamping piece II are installedin the conical hole I and the conical hole II of the connection anchor plate correspondingly. The columnar elastomer I and the columnar elastomer II are installed in the hollow bolt I and the hollow bolt II correspondingly to be clamped tightly by clamping grooves. The hollow bolt I and the hollow bolt II are screwed into the inner threaded hole I and the inner threaded hole II of the connection anchor plate correspondingly. The deformed steel bar and prestressed tendon connector has the advantages of being easy to install, high in efficiency and high in anchoring reliability.

Description

technical field [0001] The invention relates to a product suitable for the field of prefabricated and assembled prestressed engineering and a supporting construction method, especially a kind of connection between prestressed rods and tendons in different directions, which serves as a transitional connection and transfers prestress. A connector for prestressed rods and prestressed tendons and a construction method for connecting prestressed rods and prestressed tendons. Background technique [0002] In some prestressed projects similar to wind power towers, the main body is composed of foundation sections, prefabricated concrete tower sections and steel tower sections. After the three are assembled, they are reinforced with prestress to prevent collapse; the foundation part is the lower part The structure is pre-embedded with rigid threaded steel rods. The prefabricated concrete tower section and the steel tower section are the upper structure, which are connected by flexibl...

AI Technical Summary

Problems solved by technology

[0003] A kind of threaded steel rod and steel strand connector of prior art such as Figure 10-1~Figure 10-2 As shown, it includes the connecting anchor plate 9a, the working clip 3a, and the hollow bolt 1a. When installing, first connect the connecting anchor plate 9a and the threaded steel rod embedded in the concrete through the knob, and then connect the steel strand Penetrate into the taper hole connecting the anchor plate 9a, then install the working clip 3a, tap the working clip 3a with a tool, and finally install the hollow bolt 1a; the disadvantages of this connector are: (1) There are many installation procedures and low construction efficiency ; (2) Difficult to install in a small space

The above process is very difficult to operate when the reserved space is small, and sometimes it is impossible to install the connector; (3) because the connecting anchor plate 9a and the threaded steel rod need to be connected by a knob, when the threaded steel rod is fixed, The object of the knob can only be one-to-one, not suitable for multiple objects, so this structure is only suitable for connecting a single threaded steel rod when the threaded steel rod is fixed, and cannot be connected with multiple threaded steel rods at the same time; (4 ) The working clip 3a is installed after penetrating the steel strand. Due to the limited construction space, the operation is extremely inconvenient, and it often happens that the working clip 3a is not tight. It also often falls down, all of the above will cause the clip to be unable to clamp the steel strand, resulting in slippage during the tensioning process

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