CN111515494A - Manufacturing method of bearing column of steel structure factory building - Google Patents
Manufacturing method of bearing column of steel structure factory building Download PDFInfo
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- CN111515494A CN111515494A CN202010430214.8A CN202010430214A CN111515494A CN 111515494 A CN111515494 A CN 111515494A CN 202010430214 A CN202010430214 A CN 202010430214A CN 111515494 A CN111515494 A CN 111515494A
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- welding
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- steel structure
- support column
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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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a manufacturing method of a bearing column of a steel structure factory building, which comprises the steps of providing a working platform and a plurality of welding rods, and preprocessing the welding rods; overlapping at least two supporting beams and a plurality of connecting beams into a bearing column; controlling the perpendicularity of the connecting beam relative to the supporting beam by using a theodolite; welding the joint of the supporting beam and the connecting beam to obtain the bearing column; by adopting the technical scheme of the invention, through controlling the verticality between the connecting beam and the supporting beam and carrying out pretreatment such as baking, heat preservation and the like on the welding wire before welding, the moisture contained in the welding wire can be fully evaporated, pores in the welding seam formed after welding can be prevented, the welding seam can be prevented from cracking, the mechanical property and strength of the welding seam can be improved, and the integral mechanical property, structural strength and bearing capacity of the bearing column after butt welding can be improved. In addition, welding construction needs to be carried out under the condition that the ambient temperature is met, so that the corrosion of the welding wire caused by moisture in ambient air can be prevented, and the manufacturing quality is ensured.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a method for manufacturing a bearing column of a steel structure factory 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 factory building bearing column is mainly used for supporting the middle part of the factory building structure, in order to prevent the roof from deforming, namely, the steel structure factory building bearing column has high requirements on the structural strength and the bearing capacity of a bearing main body, in the prior art, the steel reinforcement cage is mainly used as a framework, and a proper amount of concrete is poured on the steel reinforcement cage, so that the steel reinforcement cage and the concrete are condensed together to form the bearing column.
Disclosure of Invention
In order to solve the technical problem, the invention provides a manufacturing method of a bearing column of a steel structure factory building.
The invention is realized by the following technical scheme.
The invention provides a manufacturing method of a bearing column of a steel structure factory building, which comprises the following steps:
the method comprises the following steps: providing a working platform and a plurality of welding rods, and sequentially baking and insulating each welding rod for later use;
step two: providing at least two supporting beams and a plurality of connecting beams, arranging the supporting beams on the working platform in parallel according to a proper distance in the first step, and fixedly connecting the connecting beams between any two adjacent supporting beams by using bolts;
step three: detecting the perpendicularity of the fixed connecting beam in the second step relative to the supporting beam connected with the connecting beam by using a theodolite, and performing the next step when the detected value of the perpendicularity is less than 0.3 mm;
step four: and (3) when the temperature of the surrounding environment reaches above the characteristic temperature, respectively welding the joint of each supporting beam and the connecting beam by adopting a welding method of carbon dioxide gas shielded welding, filling the welding rods in the gap between the supporting beams and the connecting beam after the welding rods are melted in the step one, and then condensing to form a welding line, thus obtaining the bearing column.
The surface roughness of the working platform is less than 6.3 microns.
The welding process parameters in the fourth step are as follows: preheating the welding position in the range of not less than 150mm in the vicinity of the welding position before welding, wherein the welding temperature is 50-200 ℃.
The baking temperature of the welding rod is 280-260 ℃, and the baking duration time is 2 hours.
The temperature of the welding rod is kept at 110-160 ℃, and the duration of the temperature keeping is 1-2 h.
The characteristic temperature is 10 ℃.
The manufacturing method of the building steel structure support column further comprises the following steps: before welding by adopting a welding method of carbon dioxide gas shielded welding, the welding rod is subjected to preheating treatment, so that the surface temperature of the welding rod reaches 110-.
The length of the connecting beam is less than 1500 mm.
Any two connecting beams which are not parallel to each other are welded together through the reinforcing beam.
The reinforcing beam (3) is made of rectangular steel pipes.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the supporting beam and the connecting beam are both made of H-shaped steel, so that a foundation is laid for improving the bearing capacity of the bearing column, the H-shaped steel has a smooth surface, the bearing column can be conveniently connected with a roof and the ground by using fasteners, the bearing capacity and the stability of the bearing column are further enhanced, when the bearing column is prefabricated, the verticality between the connecting beam and the supporting beam is mainly controlled, and the welding wire is subjected to pretreatment such as baking, heat preservation and the like before welding, so that moisture contained in the welding wire can be fully evaporated, air holes in the welding line formed after welding are prevented, cracks are prevented from occurring in the welding line, the mechanical performance and the strength of the welding line are improved, and further the overall mechanical performance, the structural strength and the bearing capacity of the bearing column after welding are improved. In addition, the welding wire 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 wire caused by moisture in ambient air can be prevented, the manufacturing quality is guaranteed, the adjustment in the workshop building process is avoided, and a foundation is laid for improving the construction efficiency.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural view of the bearing column of the steel structure factory building of the invention;
FIG. 3 is a front view of the steel structure plant load-bearing column of the present invention;
FIG. 4 is a top view of the steel structure plant load-bearing column of the present invention;
figure 5 is a front view of the load bearing frame of the present invention.
In the figure: 1-supporting beam, 2-connecting beam, 3-reinforcing beam and 4-bearing frame.
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 5, the invention provides a manufacturing method of a bearing column of a steel structure factory building, which comprises the following steps:
the method comprises the following steps: providing a working platform and a plurality of welding rods, and sequentially baking and insulating each welding rod for later use; further, it is preferred that the work platform surface roughness be less than 6.3 microns. The baking temperature of the welding rod is 280-260 ℃, and the baking duration is 2 hours. The temperature of the welding rod is kept for 110-.
Step two: providing at least two supporting beams 1 and a plurality of connecting beams 2, arranging the plurality of supporting beams 1 on the working platform in the first step in parallel according to a proper distance, and fixedly connecting the plurality of connecting beams 2 between any two adjacent supporting beams 1 by using bolts; further, the support beam 1 is made of section steel having an "H" shape in cross section. The supporting beam (1 is made of H-shaped section steel with a cross section, the bottom surface of at least one connecting beam 2 is flush with the lower end surface of the supporting beam 1, the top surface of at least one connecting beam 2 is flush with the upper end of the supporting beam 1, and the length of the connecting beam 2 is less than 1500 mm.
Step three: detecting the perpendicularity between the connecting beam 2 fixed in the second step and the supporting beam 1 connected with the connecting beam by using a theodolite, and performing the next step when the detected perpendicularity value is less than 0.3 mm;
step four: and when the temperature of the surrounding environment reaches above the characteristic temperature, respectively welding the joint of each supporting beam 1 and each connecting beam 2 by adopting a welding method of carbon dioxide gas shielded welding, filling the welding rods in the gap between the supporting beams 1 and the connecting beams 2 after the welding rods are melted in the first step, and condensing to form a welding line to obtain the bearing column. The welding process parameters in the fourth step are as follows: preheating the welding position in the range of not less than 150mm in the vicinity of the welding position before welding, wherein the welding temperature is 50-200 ℃. The preferred characteristic temperature is 10 ℃.
In addition, the manufacturing method of the building steel structure support column further comprises the following steps: before welding by adopting a welding method of carbon dioxide gas shielded welding, preheating is carried out on a welding rod, so that the surface temperature of the welding rod reaches 110-160 ℃.
In addition, any two connecting beams 2 which are not parallel to each other are welded together through the reinforcing beam 3. The reinforcing beam (3) is made of rectangular steel pipes.
By adopting the technical scheme of the invention, the supporting beam and the connecting beam are both made of H-shaped steel, so that a foundation is laid for improving the bearing capacity of the bearing column, the H-shaped steel has a smooth surface, the bearing column can be conveniently connected with a roof and the ground by using fasteners, the bearing capacity and the stability of the bearing column are further enhanced, when the bearing column is prefabricated, the verticality between the connecting beam and the supporting beam is mainly controlled, and the welding wire is subjected to pretreatment such as baking, heat preservation and the like before welding, so that moisture contained in the welding wire can be fully evaporated, air holes in the welding line formed after welding are prevented, cracks are prevented from occurring in the welding line, the mechanical performance and the strength of the welding line are improved, and further the overall mechanical performance, the structural strength and the bearing capacity of the bearing column after welding are improved. In addition, the welding wire 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 wire caused by moisture in ambient air can be prevented, the manufacturing quality is guaranteed, the adjustment in the workshop building process is avoided, and a foundation is laid for improving the construction efficiency.
Claims (10)
1. A manufacturing method of a building steel structure supporting column is characterized in that: the method comprises the following steps:
the method comprises the following steps: providing a working platform and a plurality of welding rods, and sequentially baking and insulating each welding rod for later use;
step two: providing at least two supporting beams (1) and a plurality of connecting beams (2), arranging the plurality of supporting beams (1) on the working platform in parallel at a proper interval in the first step, and fixedly connecting the plurality of connecting beams (2) between any two adjacent supporting beams (1) by using bolts;
step three: detecting the verticality between the fixed connecting beam (2) in the second step and the supporting beam (1) connected with the connecting beam by using a theodolite, and performing the next step when the detected value of the verticality is less than 0.3 mm;
step four: and (3) when the temperature of the surrounding environment reaches above the characteristic temperature, respectively welding the joint of each supporting beam (1) and each connecting beam (2) by adopting a welding method of carbon dioxide gas shielded welding, filling the welding rods in the gap between the supporting beams and the connecting beams after the welding rods are melted in the step one, and then condensing to form a welding line to obtain the bearing column.
2. The method for manufacturing a support column of a steel structure of a building according to claim 1, wherein: the surface roughness of the working platform is less than 6.3 microns.
3. The method for manufacturing a support column of a steel structure of a building according to claim 1, wherein: the welding process parameters in the fourth step are as follows: preheating the welding position in the range of not less than 150mm in the vicinity of the welding position before welding, wherein the welding temperature is 50-200 ℃.
4. The method for manufacturing a structural support column for a building according to claim 1, wherein: the baking temperature of the welding rod is 280-260 ℃, and the baking duration time is 2 hours.
5. The method for manufacturing a structural support column for a building according to claim 1, wherein: the temperature of the welding rod is kept at 110-160 ℃, and the duration of the temperature keeping is 1-2 h.
6. The method for manufacturing a structural support column for a building according to claim 1, wherein: the characteristic temperature is 10 ℃.
7. The method for manufacturing a structural support column for a building according to claim 1, wherein: the manufacturing method of the building steel structure support column further comprises the following steps: before welding by adopting a welding method of carbon dioxide gas shielded welding, the welding rod is subjected to preheating treatment, so that the surface temperature of the welding rod reaches 110-.
8. The method for manufacturing a support column of a steel structure of a building according to claim 1, wherein: the length of the connecting beam (2) is less than 1500 mm.
9. The method for manufacturing a support column of a steel structure of a building according to claim 1, wherein: any two connecting beams (2) which are not parallel to each other are welded together through the reinforcing beam (3).
10. The method for manufacturing a support column of a steel structure of a building according to claim 9, wherein: the reinforcing beam (3) is made of rectangular steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430214.8A CN111515494A (en) | 2020-05-20 | 2020-05-20 | Manufacturing method of bearing column of steel structure factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430214.8A CN111515494A (en) | 2020-05-20 | 2020-05-20 | Manufacturing method of bearing column of steel structure factory building |
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| CN111515494A true CN111515494A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010430214.8A Pending CN111515494A (en) | 2020-05-20 | 2020-05-20 | Manufacturing method of bearing column of steel structure factory building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389277A (en) * | 2021-03-15 | 2021-09-14 | 中国水利水电第九工程局有限公司 | Roof construction method for building with double-layer steel structure grid composite membrane structure |
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| CN101967880A (en) * | 2010-10-29 | 2011-02-09 | 中建三局第三建设工程有限责任公司 | Standardized lattice column for low jack-up formwork system |
| CN102019481A (en) * | 2010-11-30 | 2011-04-20 | 武昌船舶重工有限责任公司 | Plain butt welding process for high-strength hull structural steel |
| CN104259622A (en) * | 2014-07-31 | 2015-01-07 | 中国十七冶集团有限公司 | Butt welding method for workshop columns under humid environment |
| CN105927245A (en) * | 2016-04-27 | 2016-09-07 | 中铁十二局集团安徽混凝土制品有限公司 | Novel duct piece steel structural framework and welding method thereof |
| CN109914694A (en) * | 2019-03-05 | 2019-06-21 | 贵州建工集团第一建筑工程有限责任公司 | A kind of steel-structure factory building load-bearing pillar and its manufacturing method |
-
2020
- 2020-05-20 CN CN202010430214.8A patent/CN111515494A/en active Pending
Patent Citations (5)
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| CN101967880A (en) * | 2010-10-29 | 2011-02-09 | 中建三局第三建设工程有限责任公司 | Standardized lattice column for low jack-up formwork system |
| CN102019481A (en) * | 2010-11-30 | 2011-04-20 | 武昌船舶重工有限责任公司 | Plain butt welding process for high-strength hull structural steel |
| CN104259622A (en) * | 2014-07-31 | 2015-01-07 | 中国十七冶集团有限公司 | Butt welding method for workshop columns under humid environment |
| CN105927245A (en) * | 2016-04-27 | 2016-09-07 | 中铁十二局集团安徽混凝土制品有限公司 | Novel duct piece steel structural framework and welding method thereof |
| CN109914694A (en) * | 2019-03-05 | 2019-06-21 | 贵州建工集团第一建筑工程有限责任公司 | A kind of steel-structure factory building load-bearing pillar and its manufacturing method |
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| 刘云龙等: "《焊工技师手册》", 30 April 2000, 机械工业出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389277A (en) * | 2021-03-15 | 2021-09-14 | 中国水利水电第九工程局有限公司 | Roof construction method for building with double-layer steel structure grid composite membrane structure |
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Application publication date: 20200811 |