Splicing, reinforcing and mounting method for super-long roof beam

Abstract

The invention discloses a splicing, reinforcing and mounting method for an ultra-long roof beam. The method comprises the steps that the ultra-long roof beam is prefabricated in blocks, and prefabricated parts are transported to a site; the ultra-long roof beam blocks are welded together after being spliced on site, meanwhile, the welding parts are reinforced, the reinforcing operation of the round pipe parts is that pipes with the same material specification as the welding parts are split and then attached to the connecting positions to be welded and fixed, and the reinforcing operation of the T-shaped steel is that plates with the same material as the T-shaped steel are adopted to conduct dislocation repair welding on the weld joints; and after block splicing and reinforcing are completed, a four-point type high-altitude integral hoisting method is adopted for hoisting the integral structure obtained after block splicing and reinforcing are completed. According to the splicing, reinforcing and mounting method for the super-long roof beams, the roof truss does not need to be integrally machined, manufactured and transported, the transportation cost is greatly reduced, the machining progress is accelerated, the working efficiency is improved, a large amount of time can be saved, and the transportation efficiency is improved; the reinforcing effect is good and the application prospect is good.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure construction, and relates to a method for splicing, reinforcing and installing an extra-long roof beam. Background Art

[0002] Extra-long steel components usually refer to steel structure components with a length of more than 30 meters. These components are usually used in large-scale construction projects such as large industrial buildings. At present, due to the limitations of the site and processing equipment, as well as the road restrictions on component transportation, the extra-long and extra-wide roof beams cannot be manufactured as a whole and then transported to the site for installation. At present, the steel structure roof beams are mainly processed and manufactured in blocks, and then spliced ​​and installed on site.

[0003] CN 219826283 U discloses a roof steel structure reinforcement form, and CN 114370171 A discloses a steel structure roof beam reinforcement structure and a reinforcement method thereof, which reinforces the complete roof beam but does not involve reinforcement of the roof beam splicing portion, and cannot be applied to the reinforcement of super-long roof beam splicing.

[0004] Therefore, it is of great practical significance to develop a method for splicing and reinforcing super-long roof beams. Summary of the invention

[0005] Since the prior art has the above-mentioned defects, the present invention provides a method for splicing and reinforcing super-long roof beams, which overcomes the defect of the current lack of a method for splicing and reinforcing super-long roof beams.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A method for splicing, reinforcing and installing an extra-long roof beam, characterized in that it comprises the following steps:

[0008] (1) Prefabricate the extra-long roof beams in blocks and transport the prefabricated parts to the site;

[0009] (2) Splice the extra-long roof beams in sections on site and weld them together, and reinforce the welded parts;

[0010] The reinforcement operation of the round tube part is to cut the pipe with the same material and specification as the welding part, fit it to the connection and then weld it to fix it. The stability of the round tube connection part can be ensured to achieve the strength of the overall structure after the super-long roof beam is connected in blocks;

[0011] The reinforcement operation of T-shaped steel is to use plates of the same material as the T-shaped steel to perform offset welding on the welds, which can ensure the stability of the T-shaped steel connection;

[0012] (3) After the block splicing and reinforcement is completed, the four-point high-altitude overall lifting method is used to lift the overall structure completed by the block splicing and reinforcement.

[0013] The super-long roof beam splicing reinforcement installation method of the present invention is reasonably designed. Due to the limitation of the processing plant site, the quality requirements of the roof beam processing, the transportation roads and the limitations of the on-site construction site, the super-long roof beam is prefabricated in blocks in the prefabrication plant. The prefabrication operation efficiency is high, the cost is relatively low, the transportation and storage of the components are convenient and fast, and the problem of component deformation can be easily avoided during transportation, thereby improving the processing and component supply and transportation efficiency. After the blocks are spliced ​​and welded on site, the spliced ​​parts are reinforced, and the reinforcement effect is good. The effect of overall prefabrication can be basically achieved, and the problems of limited steel structure roof production site, component transportation and overall component processing quality can be avoided. The application prospect is good.

[0014] As the preferred technical solution:

[0015] In the above-mentioned method for splicing, reinforcing and installing super-long roof beams, the pipe splitting refers to splitting the pipe in half.

[0016] In the above-mentioned method for splicing and reinforcing an extra-long roof beam, the welding point is polished after the splicing and alignment and before the welding.

[0017] In the above-mentioned method for splicing, reinforcing and installing an extra-long roof beam, the block splicing and welding of the extra-long roof beam is carried out by placing the roof beam blocks flat on a tire frame.

[0018] In the above-mentioned method for splicing and reinforcing an extra-long roof beam, after the block splicing and reinforcement is completed, the overall structure of the splicing and reinforcement is inspected and accepted, and then hoisting is carried out after passing the inspection.

[0019] 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.

[0020] The above invention has the following advantages or beneficial effects:

[0021] (1) The method for splicing, reinforcing and installing super-long and super-wide roof beams of the present invention is reasonably designed. Due to the limitations of the processing plant site, the quality requirements of the roof beam processing, the transportation roads and the limitations of the on-site construction site, the super-long roof beams are prefabricated in blocks in the prefabrication plant. The prefabrication operation is efficient, the cost is relatively low, the transportation and storage of components are convenient and fast, and the problem of component deformation can be easily avoided during transportation, thereby improving the processing and component supply and transportation efficiency;

[0022] (2) The method for splicing and reinforcing the installation of the ultra-long and ultra-wide roof beams of the present invention is to reinforce the spliced ​​parts after splicing and welding the blocks on site, which has a good reinforcement effect and can basically achieve the effect of overall prefabrication;

[0023] (3) The method for splicing and reinforcing the extra-long and extra-wide roof beams of the present invention does not require the roof trusses to be processed, manufactured, and transported as a whole, which greatly reduces transportation costs and improves processing progress, increases work efficiency, can save a lot of time, improves transportation efficiency, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the reinforcement of the circular tube part of the roof beam;

[0026] Figure 2 This is the plan for the T-steel reinforcement of the roof beam;

[0027] Figure 3 This is the elevation drawing of the T-steel reinforcement for the roof beam;

[0028] Figure 4 for Figure 3 AA section view;

[0029] Among them, 1 is the round tube part of the roof beam, 2 is the half-cut pipe, 3 is the weld of the round tube part of the roof beam, 4 is the T-shaped steel of the roof beam, and 5 is the welded plate. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1

[0032] A method for splicing, reinforcing and installing an extra-long roof beam comprises the following steps:

[0033] (1) Prefabricate the extra-long roof beams in blocks and transport the prefabricated parts to the site;

[0034] (2) Place the roof beams in blocks flat on the frame, splice the extra-long roof beams in blocks on site, grind the welds, weld the two together, and reinforce the welds;

[0035] The reinforcement operation of the round tube part (lower chord) is to cut the tube of the same material and specification as the welding part in half, fit it to the joint and weld it. Figure 1 As shown, half-cut pipe 2 is attached to both sides of the weld of the round pipe part 1 of the roof beam (weld 3 of the round pipe part of the roof beam) and is welded and fixed to the round pipe part;

[0036] The reinforcement operation of T-shaped steel (upper chord) is to use plates of the same material as the T-shaped steel to perform offset welding on the welds, such as Figure 2 As shown, a welding plate 5 is staggered and welded at the weld of the T-shaped steel 4 of the roof beam;

[0037] (3) After the block splicing and reinforcement is completed, the overall structure completed by the block splicing and reinforcement is inspected and accepted. After the acceptance is qualified, the overall structure completed by the block splicing and reinforcement is hoisted using a four-point high-altitude overall hoisting method.

[0038] It has been verified that the method for splicing, reinforcing and installing super-long and super-wide roof beams of the present invention is reasonably designed. Due to the limitations of the processing plant site, the requirements for the processing quality of the roof beams, the limitations of the transportation roads and the on-site construction site, the super-long roof beams are prefabricated in blocks in the prefabrication plant. The prefabrication operation is efficient, the cost is relatively low, and the transportation and storage of the components are convenient and fast. The problem of component deformation can also be easily avoided during transportation, thereby improving the processing and component supply and transportation efficiency. After the blocks are spliced ​​and welded on site, the spliced ​​parts are reinforced, the reinforcement effect is good, and the effect of overall prefabrication can be basically achieved. The roof truss does not need to be processed, manufactured and transported as a whole, which greatly reduces the transportation cost and improves the processing progress, increases the work efficiency, can save a lot of time, improves the transportation efficiency, and has a good application prospect.

[0039] 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.

[0040] 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 method for splicing and reinforcing extra-long roof beams. Features: The following steps are involved: (1) Prefabricate the extra-long roof beams in blocks and transport the prefabricated parts to the site; (2) Splice the extra-long roof beams in sections on site and weld them together, and reinforce the welded parts; The reinforcement operation of the round tube part is to cut the tube with the same material and specification as the welded part, fit it to the joint and then weld it to fix it; The reinforcement operation of T-shaped steel is to use plates of the same material as the T-shaped steel to perform offset welding on the welds; (3) After the block splicing and reinforcement is completed, the four-point high-altitude overall lifting method is used to lift the overall structure completed by the block splicing and reinforcement.

2. A method for splicing, reinforcing and installing super-long roof beams according to claim 1, It is characterized in that The pipe splitting refers to splitting the pipe into two halves.

3. A method for splicing, reinforcing and installing super-long roof beams according to claim 1, It is characterized in that Grind the welds after the joints are aligned and before welding.

4. A method for splicing, reinforcing and installing super-long roof beams according to claim 1, It is characterized in that The super-long roof beam block splicing and welding is carried out by placing the roof beam blocks flatly on a tire frame.

5. A method for splicing, reinforcing and installing super-long roof beams according to claim 1, It is characterized in that After the block splicing and reinforcement is completed, the overall structure will be inspected and accepted, and then hoisting will be carried out after passing the acceptance.

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