Construction method for mounting net rack with inlaying pipes and synchronously aligning multiple pipes to weld balls

Abstract

The invention discloses a construction method for installing a net rack with inlaying pipes and welding balls in a multi-pipe synchronous butt joint mode. The construction method comprises the steps that the net rack is hoisted to be close to the installed net rack; a transverse traction chain block, an inclined traction chain block and a longitudinal traction chain block are arranged between the upper chord ball of the hoisting net rack and the upper chord ball of the installed net rack in a pulling mode; the lengths of the transverse traction chain block, the oblique traction chain block and the longitudinal traction chain block are shortened through synchronous operation; the lengths of the transverse traction chain block, the oblique traction chain block and the longitudinal traction chain block are sequentially shortened until the lifting net rack is pulled to reach the designed position; a stacking plate is used for fixing and inlaying the upper chord rectangular pipe and the upper chord ball with the installed net rack, a plurality of layers of base plates are stuffed into a ball support, and the transverse traction chain block, the oblique traction chain block and the longitudinal traction chain block are dismantled; and mounting the embedded web member circular tube. According to the construction method for mounting the inlaying pipe on the net rack, the overhead working mounting amount of the inlaying pipe is reduced, the construction difficulty is reduced, and the construction safety is improved; the operation is simple, the construction cost is reduced and the application prospect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering and steel structure construction, and relates to a construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes, and in particular to an installation method of a welded ball grid frame with embedded patching pipes for solving the problem of a large number of embedded patching pipes and low work efficiency when the grid frame is installed in blocks. Background Art

[0002] There are many construction techniques for installing grids, among which the grid block installation technique is the most commonly used one.

[0003] As for the block-by-block lifting of the upper-chord flattened welded ball grid, there is not only the problem of difficulty in embedding the upper-chord rectangular tubes between the welded balls, but also the problem of construction difficulty and low construction efficiency caused by the large number of embedded tubes.

[0004] CN 217949798 U discloses an auxiliary device for mesh rod patching, CN 117328682 A discloses a method for mesh block lifting and reinforcement using an assembly support frame, and CN 116537381 A discloses a large-span steel structure mesh installation construction process, specifically a construction method for partition assembly and cumulative lifting. Although it can assist in partition assembly, it cannot solve the problem of construction difficulties and low construction efficiency caused by a large number of patching pipes.

[0005] Therefore, it is of great practical significance to develop a construction method that can solve the problems of a large number of embedded patching pipes and low work efficiency when the grid is installed in blocks. Summary of the invention

[0006] In view of the above-mentioned defects in the prior art, the present invention provides a construction method that can solve the problems of a large number of patching pipes and low work efficiency when installing the grid in blocks, specifically a construction method for installing a grid with patching pipes and synchronously welding balls on multiple pipes.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes, comprising the following steps:

[0009] (1) Lift the lifting grid and gradually approach the installed grid so that the top of the ball support of the support frame is lower than the bottom of the lower string ball of the lifting grid and the lower string ball is suspended above the ball support;

[0010] (2) A transverse traction fall chain, an oblique traction fall chain and a longitudinal traction fall chain are arranged between the upper chord ball of the lifting grid and the upper chord ball of the installed grid. The transverse traction fall chain is arranged along the transverse direction of the grid, the longitudinal traction fall chain is arranged along the longitudinal direction of the grid, and the oblique traction fall chain is arranged obliquely on the grid;

[0011] (3) Synchronously shorten the length of the transverse traction fall chain, the oblique traction fall chain and the longitudinal traction fall chain. While controlling the lifting grid to prevent the entire grid from rotating horizontally, the upper chord moment tube is gradually inserted close to the upper chord ball of the installed grid, and the lower chord circular tube is gradually inserted close to the lower chord ball of the installed grid until the gap between the two ends reaches a certain distance;

[0012] (4) The lengths of the transverse traction fall chain, the oblique traction fall chain and the longitudinal traction fall chain are shortened in sequence, and the shortening distance each time does not exceed 20 mm, until the lifting grid is gradually pulled to the designed position, and the embedded upper chord rectangular tube and the embedded lower chord circular tube are gradually aligned with the upper chord ball and the lower chord ball of the installed grid;

[0013] (5) Use the stacking plate to fix the upper chord moment tube and the upper chord ball of the installed grid, temporarily fix the position of the lifting grid, insert multiple layers of pads on the ball support to support the lower chord ball of the lifting grid, and remove the transverse traction fall chain, oblique traction fall chain and longitudinal traction fall chain;

[0014] (6) Remove the lifting equipment of the grid frame, install the embedded web rod round tube, and complete the installation of the upper chord flattened and welded ball grid frame with embedded tube.

[0015] The construction method of the grid frame with embedded patching pipes for installation and multiple pipes synchronously matched with welding balls of the present invention has a reasonable step design, and the embedded upper and lower chord pipes are directly hoisted on the upper chord flattened welding ball grid frame, and three-directional fall chains are set on the upper chord of the hoisting grid frame and the installed grid frame to pull the grid frame with embedded patching pipes for oblique translation. The hoisting grid frame undergoes multiple position fine adjustments. During this process, while the hoisting grid frame is put into place, the embedded patching pipes carried by the hoisting grid frame are also matched with the welding balls of the installed grid frame, which solves the problem of low construction efficiency caused by a large number of embedded patching pipes when the grid frame is installed in blocks. Compared with the prior art, the amount of high-altitude installation of embedded patching pipes is reduced, the construction difficulty is reduced, and the construction safety is improved. At the same time, the overall operation is simple, the construction cost is reduced, and the application prospect is good.

[0016] As the preferred technical solution:

[0017] In the construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes as described above, in step (1), the top of the ball support of the support frame is 60 mm lower than the bottom of the lower chord ball of the lifting grid frame.

[0018] In the above-mentioned construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes, in step (3), the certain distance is 50 mm.

[0019] In the above-mentioned construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes, in step (4), the distance is shortened by 10 mm each time.

[0020] In the construction method of installing a grid frame with embedded patching pipes and synchronously welding balls with multiple pipes as described above, in step (5), after inserting multiple layers of pads on the ball holder, angle steel is used to clamp the lower chord ball to prevent deviation and limit it.

[0021] In the construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes as described above, in step (1), the grid frame is hoisted using a hoisting wire rope.

[0022] In the construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes as described above, in step (6), the removal of the lifting grid lifting device refers to the removal of the lifting wire rope.

[0023] The above technical solution is only a feasible technical solution of the present invention, and the protection scope of the present invention is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0024] The above invention has the following advantages or beneficial effects:

[0025] (1) The construction method of the present invention for installing a mesh frame with embedded patching pipes and synchronously matching and welding balls of multiple pipes has a reasonable step design. The embedded upper and lower chord pipes are directly hoisted on the mesh frame with flattened upper chord welding balls, and three-directional fall chains are set on the upper chord of the hoisting mesh frame and the installed mesh frame to pull the mesh frame with embedded patching pipes for oblique translation. The hoisting mesh frame undergoes multiple position fine adjustments. During this process, while the hoisting mesh frame is put into place, the embedded patching pipes carried by the hoisting mesh frame are also matched and intersected with the installed mesh frame welding balls, thereby solving the problem of low construction efficiency caused by a large number of embedded patching pipes when the mesh frame is installed in blocks.

[0026] (2) Compared with the prior art, the construction method of the present invention for installing a grid with embedded patching pipes and synchronously welding balls on multiple pipes reduces the amount of high-altitude installation work for embedded patching pipes, reduces the construction difficulty, and improves construction safety. At the same time, the overall operation is simple, the construction cost is reduced, and the application prospect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.

[0028] Figure 1 is a state diagram of step (1);

[0029] Figure 2 for Figure 1 AA perspective image;

[0030] Figure 3 is a state diagram of step (2);

[0031] Figure 4 for Figure 3 AA perspective image;

[0032] Figure 5 is the state diagram of step (3);

[0033] Figure 6 for Figure 5 AA perspective image;

[0034] Figure 7 is a state diagram of step (4);

[0035] Figure 8 for Figure 7 AA perspective image;

[0036] Fig. 9 is a state diagram of step (5);

[0037] Fig.10 for Fig. 9 AA perspective image;

[0038] Fig.11 is a state diagram of step (6);

[0039] Fig.12 for Fig.11 AA perspective image;

[0040] Among them, 1 is a loaded support frame; 1.1 is a support beam; 1.2 is a ball support; 2 is a support frame; 2.1 is a support beam; 2.2 is a ball support; 3 is a pad; 4 is an angle steel; 5 is an installed grid; 5.1 is an installed grid upper chord ball; 5.2 is an installed grid lower chord ball; 6 is a lifting grid; 6.1 is an upper chord ball; 6.2 is a lower chord ball; 6.3 is an embedded upper chord rectangular tube; 6.4 is an embedded lower chord circular tube; 6.5 is an embedded belly rod circular tube; 7 is a lifting ear plate; 8 is a shackle; 9 is an adjustment ear plate; 10.1 is a longitudinal traction fall chain; 10.2 is an oblique traction fall chain; 10.3 is a transverse traction fall chain; 11 is a code plate; 12 is a lifting wire rope. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0042] Example 1

[0043] A construction method for installing a grid frame with embedded patching pipes and synchronously welding balls of multiple pipes, comprising the following steps:

[0044] (1) Use the lifting wire rope 12 to lift the lifting grid 6 and gradually approach the installed grid 5, so that the top of the ball holder 2.2 of the support frame 2 is 60 mm lower than the bottom of the lower string ball 6.2 of the lifting grid 6 and the lower string ball 6.2 is suspended above the ball holder 2.2. Figure 1 and 2 As shown;

[0045] (2) A transverse traction fall chain 10.3, an oblique traction fall chain 10.2 and a longitudinal traction fall chain 10.1 are arranged between the upper chord ball 6.1 of the lifting grid 6 and the installed grid upper chord ball 5.1 of the installed grid 5. The transverse traction fall chain 10.3 is arranged along the transverse direction of the grid, the longitudinal traction fall chain 10.1 is arranged along the longitudinal direction of the grid, and the oblique traction fall chain 10.2 is arranged obliquely on the grid. Figure 3 and 4 As shown;

[0046] (3) Synchronously shorten the length of the transverse traction fall chain 10.3, the oblique traction fall chain 10.2 and the longitudinal traction fall chain 10.1. While controlling the lifting grid 6 to prevent the entire structure from rotating horizontally, the upper chord moment tube 6.3 is gradually inserted close to the installed grid upper chord ball 5.1, and the lower chord circular tube 6.4 is gradually inserted close to the installed grid lower chord ball 5.2 until the gap between the two ends reaches 50 mm. Figure 5 and 6 As shown;

[0047] (4) The lengths of the transverse traction fall chain 10.3, the oblique traction fall chain 10.2 and the longitudinal traction fall chain 10.1 are shortened in sequence by 10 mm each time, until the lifting grid 6 is gradually pulled to the designed position, and the embedded upper chord rectangular tube 6.3 and the embedded lower chord circular tube 6.4 are gradually aligned with the installed grid upper chord ball 5.1 and the installed grid lower chord ball 5.2. Figure 7 and 8 As shown;

[0048] (5) Use the code plate 11 to fix the upper chord moment tube 6.3 and the installed grid upper chord ball 5.1, insert the multi-layer pad 3 on the ball holder 2.2 to support the lower chord ball 5.2 of the lifting grid, and then use the angle steel 4 to clamp the lower chord ball 5.2 of the lifting grid to prevent deviation. Remove the transverse traction fall chain 10.3, the oblique traction fall chain 10.2 and the longitudinal traction fall chain 10.1. Fig. 9 and 10 As shown;

[0049] (6) Remove the hoisting wire rope 12, install the embedded web rod round tube 6.5, and complete the installation of the upper chord flattened welded ball grid with embedded tube. Fig.11 and12 shown.

[0050] It has been verified that the construction method of the grid frame with embedded patching pipes for installation and multiple pipes synchronously matched with welding balls of the present invention has a reasonable step design, and the embedded upper and lower chord pipes are directly hoisted on the grid frame with flattened welding balls on the upper chord, and three-directional fall chains are set on the upper chord of the hoisting grid frame and the installed grid frame to pull the grid frame with embedded patching pipes for oblique translation. The hoisting grid frame undergoes multiple position fine adjustments. In this process, while the hoisting grid frame is put into place, the embedded patching pipes carried by the hoisting grid frame are also matched with the welding balls of the installed grid frame, which solves the problem of low construction efficiency caused by the large number of embedded patching pipes when the grid frame is installed in blocks. Compared with the prior art, the amount of high-altitude installation of embedded patching pipes is reduced, the construction difficulty is reduced, and the construction safety is improved. At the same time, the overall operation is simple, the construction cost is reduced, and the application prospect is good.

[0051] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0052] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A construction method for installing a grid with embedded pipes and synchronously welding balls of multiple pipes, characterized in that: The following steps are involved: (1) Lift the lifting grid and gradually approach the installed grid so that the top of the ball support of the support frame is lower than the bottom of the lower string ball of the lifting grid and the lower string ball is suspended above the ball support; (2) A transverse traction fall chain, an oblique traction fall chain and a longitudinal traction fall chain are arranged between the upper chord ball of the lifting grid and the upper chord ball of the installed grid. The transverse traction fall chain is arranged along the transverse direction of the grid, the longitudinal traction fall chain is arranged along the longitudinal direction of the grid, and the oblique traction fall chain is arranged obliquely on the grid; (3) Synchronously shorten the length of the transverse traction fall chain, the oblique traction fall chain and the longitudinal traction fall chain. While controlling the lifting grid to prevent the entire grid from rotating horizontally, the upper chord moment tube is gradually inserted close to the upper chord ball of the installed grid, and the lower chord circular tube is gradually inserted close to the lower chord ball of the installed grid until the gap between the two ends reaches a certain distance; (4) The lengths of the transverse traction fall chain, the oblique traction fall chain and the longitudinal traction fall chain are shortened in sequence, and the shortening distance each time does not exceed 20 mm, until the lifting grid is gradually pulled to the designed position, and the embedded upper chord rectangular tube and the embedded lower chord circular tube are gradually aligned with the upper chord ball and the lower chord ball of the installed grid; (5) Use the stacking plate to fix the upper chord moment tube and the upper chord ball of the installed grid, insert multiple layers of pads on the ball holder to support the lower chord ball of the lifting grid, and remove the transverse traction fall chain, oblique traction fall chain and longitudinal traction fall chain; (6) Remove the lifting equipment of the grid frame, install the embedded web rod round tube, and complete the installation of the upper chord flattened and welded ball grid frame with embedded tube.

2. A construction method for installing a grid with embedded pipes and synchronously welding balls of multiple pipes according to claim 1, characterized in that: In step (1), the top of the ball support of the support frame is 60 mm lower than the bottom of the lower chord ball of the lifting grid.

3. The construction method of installing a grid with embedded pipes and synchronously welding balls of multiple pipes according to claim 1 is characterized in that: In step (3), the certain distance is 50 mm.

4. A construction method for installing a grid with embedded pipes and synchronously welding balls of multiple pipes according to claim 2, characterized in that: In step (4), the shortening distance is 10 mm each time.

5. The construction method of installing a grid with embedded pipes and synchronously welding balls of multiple pipes according to claim 1 is characterized in that: In step (5), a plurality of pads are inserted into the ball holder and then the lower string ball is clamped with angle steel.

6. The construction method of installing a grid with embedded pipes and synchronously welding balls of multiple pipes according to claim 1 is characterized in that: In step (1), the lifting grid is lifted by using lifting wire ropes.

7. A construction method for installing a grid with embedded pipes and synchronously welding balls of multiple pipes according to claim 6, characterized in that: In step (6), the dismantling of the lifting grid hanger refers to dismantling the lifting wire rope.

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