Node device for segmented hoisting and butt joint of pipe truss

Abstract

The utility model discloses a node device for segmented hoisting and butt joint of a pipe truss, and belongs to the technical field of large-span pipe truss structure installation high-altitude assembly. The node device comprises a first chord pipe, a long round hole, lining iron, a steel bar and a second chord pipe. Lining iron is installed in the first chord pipe, a long round hole is formed in the pipe wall of one side of the first chord pipe, and a steel bar is inserted into the long round hole and used for moving the lining iron. The lining iron is located at the welding position, and the second string pipe is welded to the first string pipe. The node device has the advantages that the node device facilitates high-altitude assembly welding of the main truss chord members, the hoisting time is shortened, the construction quality can be guaranteed, the construction progress is accelerated, the construction efficiency is improved, and the test cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-altitude assembly of large-span pipe truss structures, and particularly relates to a node device used for segmented hoisting and docking of pipe trusses. Background Art

[0002] With the continuous development of building structural forms, more and more large-span tube truss structures are used in large stadiums and large material yards. In particular, in order to actively respond to the national industrial green development plan and help my country achieve carbon neutrality and carbon peak, most of my country’s steel mills, coal mines, logistics storage and other enterprises have carried out closed material yard construction. Through the fully enclosed material production management mode, dust pollution is controlled to meet environmental protection requirements.

[0003] This type of building structure mostly uses a large-span tube truss structure. The main trusses are all hoisted in sections. The butt welds of the truss chords have high quality requirements and the weld quality level is Grade 1. To ensure the welding quality, an inserted lining iron is used inside the chord to ensure the welding quality. When the main truss is hoisted in sections, if the lining iron is installed, the components cannot be hoisted in place at one time, making it difficult to assemble the chord rods. Summary of the invention

[0004] The utility model aims to provide a node device for segmented hoisting and docking of a pipe truss, which solves the problem that the segments cannot be hoisted into place at one time during hoisting, resulting in difficulty in assembling chord rods.

[0005] A node device for segmented lifting and docking of a pipe truss comprises a first chord tube 1, an oblong hole 2, an iron lining 3, a steel bar 4 and a second chord tube 5; the iron lining 3 is installed inside the first chord tube 1, an oblong hole 2 is opened on a tube wall on one side of the first chord tube 1, and the steel bar 4 is inserted into the oblong hole 2 for moving the iron lining 3; the iron lining 3 is located at a welding position, and the second chord tube 5 is welded to the first chord tube 1.

[0006] The lining iron 3 is a steel ring of 4*40mm flat steel.

[0007] The length of the steel bar 4 is greater than the pipe diameter by 50 mm.

[0008] The oblong hole 2 is 50 mm long and has a diameter that is 2 mm larger than the diameter of the steel bar 4 .

[0009] When preparing the node device, first use 4*40mm flat steel to make a steel ring as the lining iron 3, open a long circular hole 2 with a length of 50mm on the first chord tube 1, and install the lining iron 3 inside the first chord tube 1; then, the truss tube is hoisted and assembled, and the lining iron 3 is moved to the welding position with a steel rod 4 that is 50mm longer than the chord tube length, and the first chord tube 1 and the second chord tube 5 are welded, and finally the long circular hole 2 is re-welded.

[0010] The utility model has the advantages that the node device is convenient for high-altitude assembly and welding of the main truss chords, which reduces the hoisting time, can ensure the construction quality, speed up the construction progress, improve the construction efficiency, and reduce the trial cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of installing the lining iron, wherein the first chord tube 1, the oblong hole 2, the lining iron 3, and the steel bar 4.

[0012] Figure 2 for Figure 1 AA section diagram of the invention. Among them, the first chord tube 1, the oblong hole 2, the lining iron 3, and the steel bar 4.

[0013] Figure 3 The schematic diagram of welding after the assembly is completed is shown in FIG. 1 , wherein the first chord tube 1 , the oblong hole 2 , the lining iron 3 , the steel bar 4 , and the second chord tube 5 . DETAILED DESCRIPTION

[0014] Figure 1-Figure 3 This is an implementation mode of the present utility model.

[0015] A node device for segmented lifting and docking of a pipe truss comprises a first chord tube 1, an oblong hole 2, an iron lining 3, a steel bar 4 and a second chord tube 5; the iron lining 3 is installed inside the first chord tube 1, an oblong hole 2 is opened on a tube wall on one side of the first chord tube 1, and the steel bar 4 is inserted into the oblong hole 2 for moving the iron lining 3; the iron lining 3 is located at a welding position, and the second chord tube 5 is welded to the first chord tube 1.

[0016] The lining iron 3 is a steel ring of 4*40mm flat steel.

[0017] The length of the steel bar 4 is greater than the pipe diameter by 50 mm.

[0018] The oblong hole 2 is 50 mm long and has a diameter that is 2 mm larger than the diameter of the steel bar 4 .

[0019] When preparing the node device, first use 4*40mm flat steel to make a steel ring as the lining iron 3, open a long circular hole 2 with a length of 50mm on the first chord tube 1, and install the lining iron 3 inside the first chord tube 1; then, the truss tube is hoisted and assembled, and the lining iron 3 is moved to the welding position with a steel rod 4 that is 50mm longer than the chord tube length, and the first chord tube 1 and the second chord tube 5 are welded, and finally the long circular hole 2 is re-welded.

Claims

1. A node device for segmented hoisting and docking of a tube truss, characterized in that: The invention comprises a first chord tube (1), an oblong hole (2), an iron lining (3), a steel bar (4) and a second chord tube (5); the iron lining (3) is installed inside the first chord tube (1), a oblong hole (2) is opened on one side of the tube wall of the first chord tube (1), and the steel bar (4) is inserted into the oblong hole (2); the iron lining (3) is located at a welding position, and the second chord tube (5) is welded to the first chord tube (1).

2. The node device according to claim 1, characterized in that: The lining iron (3) is a steel ring of 4*40mm flat steel.

3. The node device according to claim 1, characterized in that: The length of the steel bar (4) is greater than the pipe diameter by 50 mm.

4. The node device according to claim 1, characterized in that: The oblong hole (2) is 50 mm long and has a diameter that is 2 mm larger than the diameter of the steel bar (4).

Images