CN213952717U - Steel bar connection node of assembly structure - Google Patents

Abstract

The utility model relates to a steel bar connection node of an assembly structure, which comprises at least two groups of connection components, wherein each group of connection components comprises a first connection joint and a second connection joint, the first connection joint comprises a screw thread end and a pin shaft end, and the second connection joint comprises a pin shaft joint and a screw thread end which correspond to the pin shaft end; the first connecting joints of the two groups of connecting assemblies are arranged on the outer side, the second connecting joints are arranged on the inner side, the first connecting joints and the second connecting joints are connected together through pin shaft ends and pin shaft joints in an inserting mode, the screw thread ends of the first connecting joints positioned on the outer side are connected with the steel bars of the prefabricated component or the wall preformed hole, and two ends of the site node section steel bars are respectively connected with the screw thread ends of the two groups of second connecting joints. The utility model discloses reduce the field weld, reduce cost practices thrift the manual work.

Description

Steel bar connection node of assembly structure

Technical Field

The utility model relates to a steel bar connection field, specific steel bar connection node of assembled structure that says so.

Background

With the rising of the assembly type buildings, the technical requirements of the connection nodes involved in the assembly type buildings are higher and higher. At present, the steel bar connecting nodes of the prefabricated concrete structure are connected and fixed by adopting the modes of steel bar lap joint binding connection, welding and screw thread sleeve connection.

The screw thread sleeve connection needs to complete sleeve installation in the hoisting process, and if the space between the butted steel bars after the hoisting component is temporarily fixed is smaller than the length of the sleeve, the sleeve cannot be connected with the steel bars on two sides simultaneously; the steel bar overlapping binding connection mode has larger overlapping length, and longer exposed steel bars need to be reserved; the welding connection needs a certain operation space, and the operation space of the joint connection part is small, the welding difficulty is high, and the actual welding quality is difficult to ensure.

The existing connection mode has the following problems:

the optimal of current connected mode is muffjoint, and the work efficiency is low in the contrast, needs the loop wheel machine fit time long.

The existing screw thread bushing connection mode is that if the assembled components are installed without a crane in a matching mode, the butt joint gap of the steel bars is inevitably smaller than a sleeve for connecting the assembled components, the sleeve cannot be connected with two steel bar mantle wires simultaneously, the assembled components can only be connected in a welding mode, and the welding quality cannot be guaranteed.

The different connection methods available are only specific to the environment.

Disclosure of Invention

The utility model aims at overcoming prior art's defect, provide a steel bar connection node of assembled structure, solve assembled concrete structure steel bar connection node connection difficulty scheduling problem.

In order to solve the technical problem, the utility model discloses a realize like this:

the utility model provides a steel bar connection node of assembled structure which characterized in that: the connecting device comprises at least two groups of connecting components, wherein each group of connecting components comprises a first connecting joint and a second connecting joint, the first connecting joint comprises a screw thread end and a pin shaft end, and the second connecting joint comprises a pin shaft joint and a screw thread end which correspond to the pin shaft end;

the first connecting joints of the two groups of connecting assemblies are arranged on the outer side, the second connecting joints are arranged on the inner side, the first connecting joints and the second connecting joints are connected together through pin shaft ends and pin shaft joints in an inserting mode, the screw thread ends of the first connecting joints positioned on the outer side are connected with the steel bars of the prefabricated component or the wall preformed hole, and two ends of the site node section steel bars are respectively connected with the screw thread ends of the two groups of second connecting joints.

The utility model has the advantages that: the problem of assembled structure scene reinforcing bar pass reserve hole department node because of the space is narrow and small, the reinforcing bar can't carry out the bolt connection is solved. The field welding is reduced, the cost is reduced, and the labor is saved.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

fig. 1 is a schematic view of the connection of fabricated structural member rebar to the present application.

Fig. 2 is wall preformed hole reinforcing bar and this application's connection schematic diagram.

Detailed Description

As shown in fig. 1 and 2: a steel bar connecting joint of an assembly structure comprises at least two groups of connecting components, wherein each group of connecting components comprises a first connecting joint 1 and a second connecting joint 2, the first connecting joint comprises a screw thread end 3 and a pin shaft end 4, and the second connecting joint comprises a pin shaft joint 5 and a screw thread end 3 which correspond to the pin shaft end;

the first connecting joints of the two groups of connecting assemblies are arranged on the outer side, the second connecting joints are arranged on the inner side, the first connecting joints and the second connecting joints are connected together through pin shaft ends and pin shaft joints in an inserting mode, the screw thread ends of the first connecting joints positioned on the outer side are connected with the assembled component 6 or the reinforcing steel bars 9 of the wall body preformed holes 8, and two ends of the reinforcing steel bars 7 of the site node sections are respectively connected with the screw thread ends of the two groups of second connecting joints.

The connection design of the pin shaft and the connection component is selected to ensure that the shear strength is greater than the tensile strength of the connected steel bars. The thickness and the pin shaft hole diameter of the connecting component meet the design standards of a steel structure of GB50017-2017, and the design of the threading part refers to the connection of a steel bar thread sleeve.

The diameter of the pin shaft is 2mm larger than that of a steel bar which needs to be connected through the pin shaft hole, and the thickness of the connecting component meets the relation between the thickness of the connecting component and the diameter of the pin shaft on the premise of meeting the strength listed in GB50017-2017 Steel Structure design Standard.

The connection sequence in the construction process is as follows:

the first step is as follows: the reserved steel bar section on the assembly type component (wall reserved hole) is connected with the first connecting joint through a screw thread;

the second step is that: after the on-site node steel bars penetrate through the reserved holes, two ends of the on-site node steel bars are connected with the second connecting joint through screw threads;

the third step: the pin shaft ends of the first connecting joint and the second connecting joint and the pin shaft joint are adjusted to the same direction and slide in from the side, so that the link that a double-screw nut is used for connecting a steel bar needing bending is avoided, and the screw thread is screwed to apply proper prestress to the steel bar after the pin shaft ends are connected through the pin shaft joints.

Claims (1)

1. The utility model provides a steel bar connection node of assembled structure which characterized in that: the connecting device comprises at least two groups of connecting components, wherein each group of connecting components comprises a first connecting joint and a second connecting joint, the first connecting joint comprises a screw thread end and a pin shaft end, and the second connecting joint comprises a pin shaft joint and a screw thread end which correspond to the pin shaft end;

the first connecting joints of the two groups of connecting assemblies are arranged on the outer side, the second connecting joints are arranged on the inner side, the first connecting joints and the second connecting joints are connected together through pin shaft ends and pin shaft joints in an inserting mode, the screw thread ends of the first connecting joints positioned on the outer side are connected with the steel bars of the prefabricated component or the wall preformed hole, and two ends of the site node section steel bars are respectively connected with the screw thread ends of the two groups of second connecting joints.

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