CN111515495A - Method for manufacturing steel structure layer beam of high-rise building - Google Patents
Method for manufacturing steel structure layer beam of high-rise building Download PDFInfo
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- CN111515495A CN111515495A CN202010430216.7A CN202010430216A CN111515495A CN 111515495 A CN111515495 A CN 111515495A CN 202010430216 A CN202010430216 A CN 202010430216A CN 111515495 A CN111515495 A CN 111515495A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Abstract
The invention provides a method for manufacturing a steel structure layer beam of a high-rise building, which comprises the following steps: providing a working platform and a welding rod, and pretreating the welding rod; providing a plurality of longitudinal beams, and placing the longitudinal beams on a working platform; providing a plurality of transverse beams A, and placing the transverse beams A on the longitudinal beams for welding; turning the transverse beam A and the longitudinal beam which are welded together by 180 degrees; providing a plurality of transverse beams A, and placing the transverse beams A on the longitudinal beams for welding; by adopting the technical scheme of the invention, the welding rod is placed on the working platform with higher flatness for welding, so that a foundation is laid for improving the manufacturing quality and flatness of the manufacturing method of the steel structure layer beam of the high-rise building.
Description
Technical Field
The invention relates to the technical field of building engineering, in particular to a method for manufacturing a steel structure layer beam of a high-rise building.
Background
In recent years, with the development of building construction technology, under the strong support of national policies, fabricated buildings are widely used and are in a continuous and rapid development stage in recent years, and many building materials and structural members applied to the fabricated buildings are put into mass production and use, thereby gaining social merit. In the construction operation of the fabricated building, the steel structure combination layer quantity is widely adopted as the layer beam structure between the multi-story buildings, and the manufacturing method of the steel structure layer beam of the high-rise building has the advantages of good structural strength, light weight, energy conservation, environmental protection, good durability and the like.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for manufacturing a steel structure layer beam of a high-rise building.
The invention is realized by the following technical scheme.
The invention provides a method for manufacturing a steel structure layer beam of a high-rise building, which comprises the following steps:
the method comprises the following steps: providing a working platform and a plurality of welding rods, and baking and insulating the welding rods in sequence for later use;
step two: providing a plurality of longitudinal beams, and arranging the longitudinal beams on the working platform in the first step in parallel according to a proper distance;
step three: providing a plurality of transverse beams A, arranging the transverse beams A on the longitudinal beams in the second step in parallel at proper intervals, measuring the ambient temperature after arrangement, welding in a carbon dioxide gas shielded welding mode when the ambient temperature is higher than the characteristic temperature, filling the welding rods in gaps between the transverse beams A and the transverse beams A after the welding rods are melted, and then condensing to form welding lines;
step four: turning the transverse beam A and the longitudinal beam which are welded together in the third step for 180 degrees;
step five: providing a plurality of transverse beams B, wherein the quantity of the transverse beams B is the same as that of the transverse beams A, arranging the transverse beams B on the longitudinal beams in parallel according to a proper distance, enabling the transverse beams B to correspond to the transverse beams A one by one, measuring the ambient temperature after arrangement, and welding by adopting a welding method of carbon dioxide gas shielded welding when the ambient temperature reaches above a characteristic temperature, so that the welding rods are filled in a gap between the transverse beams B and the longitudinal beams after being melted and then are condensed to form a welding line, thereby obtaining the prefabricated combined layer beam of the building.
The welding rod is of model number CJ 556N.
The baking temperature of the welding rod is 320-360 ℃, and the baking duration time is 2 hours.
The temperature of the welding rod is kept at 120-160 ℃, and the duration of the temperature keeping is 1-2 h.
The characteristic temperature is 20 ℃.
The manufacturing method of the high-rise building steel structure layer beam further comprises the following steps: before welding by adopting the carbon oxide gas shielded welding method, the welding rod is subjected to preheating treatment, so that the surface temperature of the welding rod reaches 120-160 ℃.
In the third step and the fifth step, the technological parameters for welding the joint of the transverse beam A and the longitudinal beam and the joint of the transverse beam B and the longitudinal beam are as follows: preheating the welding position in the range of not less than 200mm nearby before welding, wherein the welding temperature is 30-180 ℃.
The surface roughness of the working platform is less than 6.3 microns.
The distance between any two adjacent transverse beams A, between any two adjacent transverse beams B and between any two adjacent longitudinal beams is equal.
The length of the longitudinal beam is less than 3000 mm.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the prefabricated combined layer beam is formed by welding a plurality of longitudinal beams, a plurality of transverse beams A and transverse beams B together, the longitudinal beams are made of H-shaped steel, the transverse beams A and the transverse beams B are arranged in pairs, the structural strength and the bearing capacity of the manufacturing method of the high-rise building steel structure layer beam are ensured, when heavy load is applied to the prefabricated combined layer beam of the building, the load force is respectively transmitted along the longitudinal beams, the transverse beams A and the transverse beams B, so that each part on the prefabricated combined layer beam of the building bears more uniform load force, the bearing condition is improved, in the manufacturing method of the high-rise building steel structure layer beam, the prefabricated combined layer beam is firstly placed on a working platform with higher flatness for welding, a foundation is laid for improving the manufacturing quality and the flatness of the manufacturing method of the high-rise building steel structure layer beam, and when welding, the welding is carried out by baking welding strips before welding, The pretreatment such as heat preservation can make the moisture that contains in the welding rod fully evaporate, prevents to appear the gas pocket in the welding seam that forms after the welding, prevents that the welding seam from appearing the crackle, promotes the mechanical properties and the intensity of welding seam, and then promotes the holistic mechanical properties of butt welding back composite layer roof beam, structural strength and bearing capacity. In addition, the welding rod is subjected to preheating treatment before welding construction, the welding construction needs to be carried out under the condition that the ambient temperature meets, the corrosion of the welding rod caused by moisture in ambient air can be prevented, the welding quality is ensured, the readjustment in the process of constructing a corresponding building is avoided, and a foundation is laid for improving the construction efficiency.
Drawings
FIG. 1 is a process flow diagram of a method of manufacture of the present invention.
FIG. 2 is a front view of a prefabricated composite storey beam of the building of the present invention;
FIG. 3 is a top plan view of a prefabricated composite floor beam for a building according to the present invention;
in the figure: 1-transverse beam a, 2-longitudinal beam, 3-transverse beam B.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 3, the present invention provides a method for manufacturing a steel structure layer beam for a high-rise building, comprising the steps of:
the method comprises the following steps: providing a working platform and a plurality of welding rods, and baking and insulating the welding rods in sequence for later use; further, the baking temperature of the welding rod is 320-. The temperature of the welding rod is kept at 120 ℃ and 160 ℃, and the duration of the temperature keeping is 1-2 h. Preferably, the surface roughness of the working platform is less than 6.3 microns. The longitudinal beams 2 are made of H-shaped steel with a cross section. The transverse beam A1 and the transverse beam B3 are both made of flat steel.
Step two: providing a plurality of longitudinal beams 2, and arranging the longitudinal beams 2 on the working platform in the first step in parallel according to a proper distance; the length of the longitudinal beam 2 is less than 3000 mm.
Step three: providing a plurality of transverse beams A1, arranging a plurality of transverse beams A1 on the longitudinal beam 2 in the second step in parallel at proper intervals, measuring the ambient temperature after arrangement, welding in a carbon dioxide gas shielded welding mode when the ambient temperature reaches above the characteristic temperature, filling a welding rod in a gap between the transverse beam A1 and the transverse beam A1 after melting, and condensing to form a welding line; further, the preferred electrode model is CJ 556N. The characteristic temperature was 20 ℃.
Step four: the transverse beam A1 welded together in the third step and the longitudinal beam 2 are turned 180 degrees;
step five: providing a plurality of transverse beams B3, wherein the number of the transverse beams B3 is the same as that of the transverse beams A1, arranging the transverse beams B3 on the longitudinal beams 2 in parallel at a proper interval, enabling the transverse beams B3 to correspond to the transverse beams A1 one by one, measuring the ambient temperature after arrangement, adopting a carbon dioxide gas shielded welding method to weld when the ambient temperature reaches above a characteristic temperature, filling welding rods in gaps between the transverse beams B3 and the longitudinal beams 2 after melting, and performing recondensation to form welding seams to obtain the prefabricated combined layer beam of the building. Further, the preferred electrode model is CJ 556N. The characteristic temperature was 20 ℃.
In addition, the manufacturing method of the steel structure layer beam of the high-rise building further comprises the following steps: before welding by adopting the welding method of carbon oxide gas shielded welding, preheating is carried out on a welding rod, so that the surface temperature of the welding rod reaches 120-160 ℃.
In addition, the process parameters for welding the joint of the transverse beam A1 and the longitudinal beam 2 and the joint of the transverse beam B3 and the longitudinal beam 2 in the third step and the fifth step are as follows: preheating the welding position in the range of not less than 200mm nearby before welding, wherein the welding temperature is 30-180 ℃. Further, the distance between any two adjacent transverse beams a1, between any two adjacent transverse beams B3 and between any two adjacent longitudinal beams 2 is equal.
By adopting the technical scheme of the invention, the prefabricated combined layer beam is formed by welding a plurality of longitudinal beams, a plurality of transverse beams A and transverse beams B together, the longitudinal beams are made of H-shaped steel, the transverse beams A and the transverse beams B are arranged in pairs, the structural strength and the bearing capacity of the manufacturing method of the high-rise building steel structure layer beam are ensured, when heavy load is applied to the prefabricated combined layer beam of the building, the load force is respectively transmitted along the longitudinal beams, the transverse beams A and the transverse beams B, so that each part on the prefabricated combined layer beam of the building bears more uniform load force, the bearing condition is improved, in the manufacturing method of the high-rise building steel structure layer beam, the prefabricated combined layer beam is firstly placed on a working platform with higher flatness for welding, a foundation is laid for improving the manufacturing quality and the flatness of the manufacturing method of the high-rise building steel structure layer beam, and when welding, the welding is carried out by baking welding strips before welding, The pretreatment such as heat preservation can make the moisture that contains in the welding rod fully evaporate, prevents to appear the gas pocket in the welding seam that forms after the welding, prevents that the welding seam from appearing the crackle, promotes the mechanical properties and the intensity of welding seam, and then promotes the holistic mechanical properties of butt welding back composite layer roof beam, structural strength and bearing capacity. In addition, the welding rod is subjected to preheating treatment before welding construction, the welding construction needs to be carried out under the condition that the ambient temperature meets, the corrosion of the welding rod caused by moisture in ambient air can be prevented, the welding quality is ensured, the readjustment in the process of constructing a corresponding building is avoided, and a foundation is laid for improving the construction efficiency.
Claims (10)
1. A method for manufacturing a steel structure layer beam of a high-rise building is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: providing a working platform and a plurality of welding rods, and baking and insulating the welding rods in sequence for later use;
step two: providing a plurality of longitudinal beams (2), and arranging the longitudinal beams (2) on the working platform in the step one in parallel according to proper intervals;
step three: providing a plurality of transverse beams A (1), parallelly arranging the transverse beams A (1) on the longitudinal beam (2) in the second step at proper intervals, measuring the ambient temperature after arrangement, and welding in a carbon dioxide gas shielded welding mode when the ambient temperature is higher than the characteristic temperature, so that the welding rod is filled in a gap between the transverse beam A (1) and the transverse beam A (1) after being melted and is condensed to form a welding line;
step four: turning the transverse beam A (1) and the longitudinal beam (2) which are welded together in the third step for 180 degrees;
step five: providing a plurality of transverse beams B (3), wherein the number of the transverse beams B (3) is the same as that of the transverse beams A (1), arranging the transverse beams B (3) on the longitudinal beams (2) in parallel at a proper interval, enabling the transverse beams B (3) to correspond to the transverse beams A (1) one by one, measuring the ambient temperature after arrangement, and when the ambient temperature reaches above a characteristic temperature, welding by adopting a welding method of carbon dioxide gas shielded welding, filling the molten welding rod in a gap between the transverse beams B (3) and the longitudinal beams (2) for recondensing to form a welding line to obtain the prefabricated combined layer beam of the building.
2. The butt welding connection method for the building supporting circular tube combined layer beam as claimed in claim 1, wherein: the welding rod is of model number CJ 556N.
3. The butt welding connection method for the building supporting circular tube combined layer beam as claimed in claim 1, wherein: the baking temperature of the welding rod is 320-360 ℃, and the baking duration time is 2 hours.
4. The butt welding connection method for the building supporting circular tube combined layer beam as claimed in claim 1, wherein: the temperature of the welding rod is kept at 120-160 ℃, and the duration of the temperature keeping is 1-2 h.
5. The butt welding connection method for the building supporting circular tube combined layer beam as claimed in claim 1, wherein: the characteristic temperature is 20 ℃.
6. The butt welding connection method for the building supporting circular tube combined layer beam as claimed in claim 1, wherein: the manufacturing method of the high-rise building steel structure layer beam further comprises the following steps: before welding by adopting the carbon oxide gas shielded welding method, the welding rod is subjected to preheating treatment, so that the surface temperature of the welding rod reaches 120-160 ℃.
7. The method for manufacturing a steel structure layer beam of a high-rise building according to claim 1, wherein: in the third step and the fifth step, the process parameters for welding the joint of the transverse beam A (1) and the longitudinal beam (2) and the joint of the transverse beam B (3) and the longitudinal beam (2) are as follows: preheating the welding position in the range of not less than 200mm nearby before welding, wherein the welding temperature is 30-180 ℃.
8. The method for manufacturing a steel structure layer beam of a high-rise building according to claim 1, wherein: the surface roughness of the working platform is less than 6.3 microns.
9. The method for manufacturing a steel structure layer beam of a high-rise building according to claim 1, wherein: the distance between any two adjacent transverse beams A (1), between any two adjacent transverse beams B (3) and between any two adjacent longitudinal beams (2) is equal.
10. The method for manufacturing a steel structure layer beam of a high-rise building according to claim 1, wherein: the length of the longitudinal beam (2) is less than 3000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430216.7A CN111515495A (en) | 2020-05-20 | 2020-05-20 | Method for manufacturing steel structure layer beam of high-rise building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430216.7A CN111515495A (en) | 2020-05-20 | 2020-05-20 | Method for manufacturing steel structure layer beam of high-rise building |
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| CN111515495A true CN111515495A (en) | 2020-08-11 |
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| CN202010430216.7A Pending CN111515495A (en) | 2020-05-20 | 2020-05-20 | Method for manufacturing steel structure layer beam of high-rise building |
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Citations (6)
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| CN109972781A (en) * | 2019-01-23 | 2019-07-05 | 贵州建工集团第一建筑工程有限责任公司 | A kind of combination layer beam and its manufacturing method |
| CN109898646A (en) * | 2019-03-05 | 2019-06-18 | 贵州建工集团第一建筑工程有限责任公司 | A kind of construction method of assembled steel structure multi storied factory building skeleton |
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Application publication date: 20200811 |
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