CN115030404A - Method for building thick plate super-large section combined steel column shaped like Chinese character' wang - Google Patents
Method for building thick plate super-large section combined steel column shaped like Chinese character' wang Download PDFInfo
- Publication number
- CN115030404A CN115030404A CN202210759408.1A CN202210759408A CN115030404A CN 115030404 A CN115030404 A CN 115030404A CN 202210759408 A CN202210759408 A CN 202210759408A CN 115030404 A CN115030404 A CN 115030404A
- Authority
- CN
- China
- Prior art keywords
- welding
- steel column
- wang
- end milling
- chinese character
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a construction method of a thick plate super-large section combined steel column shaped like a Chinese character 'wang', which comprises the steps of 1, end milling of parts; step 2, erecting an assembly jig frame; step 3, assembling and welding the Chinese character Wang; step 4, welding the Chinese character 'wang' with the bottom plate; and 5, checking the effect. The method can effectively solve the problem that the thick plate super-large section combined steel column in the shape of the Chinese character 'wang' is difficult to integrally end mill after being assembled and welded, and can also accurately assemble the member, ensure the smooth installation of the member on site, avoid the lifting safety risk caused by the integral end milling of the large-tonnage member, reduce the labor cost caused by the integral end milling of the large-tonnage member and reduce the construction period of the member processing and manufacturing.
Description
Technical Field
The invention relates to the technical field of construction of steel structures, in particular to a construction method of a thick plate super-large section combined steel column shaped like a Chinese character 'wang'.
Background
The height of the super high-rise building is refreshed continuously, so that the plate thickness and the section of a steel column mainly stressed in the structure are thicker and thicker, and the super-large section combined steel column in the shape of the Chinese character 'wang' is widely applied. The thick plate super large section combined steel column body in the shape like Chinese character 'wang' is composed of three section steels and two webs, the upper and lower section columns are provided with a plurality of butt joint surfaces, in order to smoothly install on site, the butt joint surfaces at the tops of the components need to be flat and smooth, so that the end milling treatment must be carried out on the butt joint surfaces on site in the manufacturing process of a factory to ensure that the components are installed without dimensional deviation, but the integral end milling is difficult to carry out by using an end milling machine due to the factors of large section, thick wall plate, large tonnage and the like.
Disclosure of Invention
The invention aims to overcome the defects and provides a method for respectively carrying out fragment end milling on BH section steel and a web plate, positioning other parts by taking a top end milling surface as a size control point, and finally ensuring that the integral size of a component meets the requirement, so that the problem that the integral end milling is difficult after the assembling and welding of the thick plate steel column with the king-shaped super-large section are finished is solved.
In order to achieve the above object, the present invention is realized by:
a method for constructing a thick plate super-large section combined steel column shaped like a Chinese character 'wang', comprises the steps of
Step 1, part end milling: assembling and welding BH section steel sub-components of the thick plate king-shaped super-large section combined steel column, and after the size is qualified, assembling the BH section steel and a web plate connected with the BH section steel; checking the end milling size and the appearance quality after end milling, and preparing to assemble components after meeting the requirements;
step 2, erecting an assembly jig frame: manufacturing a jig frame by using H-shaped steel with sufficient strength, rigidity and stability, determining the size of a contact surface of the jig frame according to the specification and the size of the steel column with the shape like the Chinese character 'wang' formed by combining the super-large sections of the thick plates, performing super-leveling treatment on the jig frame by using a level meter, and preparing to assemble the steel column after the jig frame is qualified;
step 3, assembling and welding the Chinese character Wang: the method comprises the steps of arranging three BH-shaped steel tire frames in total, enabling BH-shaped steel top end milling faces of a steel column in a shape like the Chinese character 'wang' to be in contact with one tire frame respectively, conducting shot blasting rust removal on the contact faces of the tire frames before contact, ensuring that no particle impurities exist on the contact faces of the tire frames, then enabling the whole end milling faces of the top of the steel column to be in complete contact with the tire frames, sequentially completing assembly of parts 1-5 by taking the top end milling faces as size control points, after the assembly, ensuring that welding shrinkage allowance of 20-25 mm is reserved in the length direction of the whole king-shaped steel column, additionally arranging channel steel with the specification of C10 between BH-shaped steel columns of the king-shaped steel column, additionally arranging triangular reinforcing plates at corner joint parts of the structure, additionally arranging one channel steel at intervals of 1 meter in the length direction, applying tensile force to increase the whole rigidity of the structure, preventing the deformation of the component in the welding process, assembling a column bottom plate at the top of the structure before welding, and enabling the end milling faces of the top of the structure to be in close contact with the tire frames by utilizing the gravity generated by the column bottom plate, further ensuring the integral flatness of the milling surface of the top end, welding a main welding seam with the length of 500mm at the root of the milling surface of the top end by adopting a vertical welding mode, checking that the flatness of the milling surface of the top end is not changed, turning over a component, finishing welding the rest main welding seams by adopting a transverse welding position, simultaneously welding the welding seams at two sides in the welding process, and reducing the size deformation generated by welding stress;
step 4, welding the king-shaped characters and the bottom plate: after the welding seam of the main body of the component is welded, the component is manufactured in a flip-chip method, firstly, redundant welding seam shrinkage reserved in the length direction of the steel column body in the shape of the Chinese character 'wang' is cut off, the top end milling surface is contacted with a jig frame, the top end milling surface is used as a size control point, and the vertical stiffening plates are assembled and welded reversely; the method comprises the following steps of applying 3-5 mm of reverse deformation amount to a column bottom plate in a flame heating mode, then completing assembly of the column bottom plate and a body structure, reserving 4mm of welding seam shrinkage allowance, welding in a multi-person symmetric welding mode, guaranteeing that two sides of a welding part are uniformly stressed according to a penetration method of back chipping, arranging a jack support device between a top end milling surface and the upper surface of the column bottom plate in a welding process, controlling the vertical size of a component to be unchanged all the time under the action of external force, effectively reducing the overall omnibearing welding deformation of the component by combining a tie plate between the transverse directions of the component, and avoiding the change of the flatness of the top end milling surface due to welding stress;
step 5, effect checking: and after the steel column is manufactured, measuring and rechecking the key dimension of the steel column, and finishing the operation.
The method can effectively solve the problem that the thick plate super-large section combined steel column in the shape of the Chinese character 'wang' is difficult to integrally end mill after being assembled and welded, and can also accurately assemble the member, ensure the smooth installation of the member on site, avoid the lifting safety risk caused by the integral end milling of the large-tonnage member, reduce the labor cost caused by the integral end milling of the large-tonnage member and reduce the construction period of the member processing and manufacturing.
Drawings
FIG. 1 is a schematic diagram of step 1.
FIG. 2 is a schematic diagram of step 2.
FIG. 3 is a first diagram of step 3.
FIG. 4 is a diagram illustrating step 3.
Detailed Description
The invention is further illustrated by the following specific examples.
A method for constructing a thick plate super-large section combined steel column shaped like a Chinese character 'wang', comprises the steps of
As shown in fig. 1, step 1, part splitting end milling: assembling and welding BH section steel sub-components of the thick plate king-shaped super-large section combined steel column, and after the size is qualified, assembling the BH section steel and a web plate connected with the BH section steel; checking the end milling size and appearance quality after end milling, and preparing to assemble components after meeting requirements;
as shown in fig. 2, step 2, setting up an assembly jig: manufacturing a jig frame by using H-shaped steel with sufficient strength, rigidity and stability, determining the size of a contact surface of the jig frame according to the specification and the size of the thick plate ultra-large section combined steel column in the shape of the Chinese character 'wang', performing ultra-flat treatment on the jig frame by using a level meter, and preparing to assemble the steel column after the jig frame is qualified;
as shown in fig. 3 and 4, step 3, assembling and welding the Chinese character 'wang': the method comprises the steps of arranging three BH-shaped steel tire frames in total, enabling BH-shaped steel top end milling faces of a steel column in a shape like the Chinese character 'wang' to be in contact with one tire frame respectively, conducting shot blasting rust removal on the contact faces of the tire frames before contact, ensuring that no particle impurities exist on the contact faces of the tire frames, then enabling the whole end milling faces of the top of the steel column to be in complete contact with the tire frames, sequentially completing assembly of parts 1-5 by taking the top end milling faces as size control points, after the assembly, ensuring that welding shrinkage allowance of 20-25 mm is reserved in the length direction of the whole king-shaped steel column, additionally arranging channel steel with the specification of C10 between BH-shaped steel columns of the king-shaped steel column, additionally arranging triangular reinforcing plates at corner joint parts of the structure, additionally arranging one channel steel at intervals of 1 meter in the length direction, applying tensile force to increase the whole rigidity of the structure, preventing the deformation of the component in the welding process, assembling a column bottom plate at the top of the structure before welding, and enabling the end milling faces of the top of the structure to be in close contact with the tire frames by utilizing the gravity generated by the column bottom plate, further ensuring the integral flatness of the milling surface of the top end, welding a main welding seam with the length of 500mm at the root of the milling surface of the top end by adopting a vertical welding mode, checking that the flatness of the milling surface of the top end is not changed, turning over a component, finishing welding the rest main welding seams by adopting a transverse welding position, simultaneously welding the welding seams at two sides in the welding process, and reducing the size deformation generated by welding stress;
step 4, welding the king-shaped characters and the bottom plate: after the welding seam of the main body of the component is welded, the component is manufactured in a flip-chip method, firstly, redundant welding seam shrinkage reserved in the length direction of the steel column body in the shape of the Chinese character 'wang' is cut off, the top end milling surface is contacted with a jig frame, the top end milling surface is used as a size control point, and the vertical stiffening plates are assembled and welded reversely; the method comprises the following steps of applying 3-5 mm of reverse deformation amount to a column bottom plate in a flame heating mode, then completing assembly of the column bottom plate and a body structure, reserving 4mm of welding seam shrinkage allowance, welding in a multi-person symmetric welding mode, guaranteeing that two sides of a welding part are uniformly stressed according to a penetration method of back chipping, arranging a jack support device between a top milling surface and the upper surface of the column bottom plate in the welding process, controlling the vertical size of a component to be not changed all the time under the action of external force, effectively reducing the whole omnibearing welding deformation of the component by combining a drawknot plate between the transverse directions of the component, and avoiding the change of the flatness of the top milling surface due to welding stress;
step 5, effect checking: and after the steel column is manufactured, measuring and rechecking the key dimension of the steel column, and finishing the operation.
The method can effectively solve the problem that the thick plate super-large section combined steel column in the shape of the Chinese character 'wang' is difficult to integrally end mill after being assembled and welded, and can also accurately assemble the member, ensure the smooth installation of the member on site, avoid the lifting safety risk caused by the integral end milling of the large-tonnage member, reduce the labor cost caused by the integral end milling of the large-tonnage member and reduce the construction period of the member processing and manufacturing.
Claims (1)
1. A method for building a thick plate super-large section combined steel column shaped like a Chinese character 'wang', is characterized in that: comprises that
Step 1, part end milling: assembling and welding BH section steel sub-components of the thick plate king-shaped super-large section combined steel column, and after the size is qualified, assembling BH section steel and web plates connected with the BH section steel; checking the end milling size and appearance quality after end milling, and preparing to assemble components after meeting requirements;
step 2, erecting an assembly jig frame: manufacturing a jig frame by using H-shaped steel with sufficient strength, rigidity and stability, determining the size of a contact surface of the jig frame according to the specification and the size of the steel column with the shape like the Chinese character 'wang' formed by combining the super-large sections of the thick plates, performing super-leveling treatment on the jig frame by using a level meter, and preparing to assemble the steel column after the jig frame is qualified;
step 3, assembling and welding the Chinese character Wang: the method comprises the steps of arranging three BH-shaped steel tire frames in total, enabling BH-shaped steel top end milling faces of a steel column in a shape like the Chinese character 'wang' to be in contact with one tire frame respectively, conducting shot blasting rust removal on the contact faces of the tire frames before contact, ensuring that no particle impurities exist on the contact faces of the tire frames, then enabling the whole end milling faces of the top of the steel column to be in complete contact with the tire frames, sequentially completing assembly of parts 1-5 by taking the top end milling faces as size control points, after the assembly, ensuring that welding shrinkage allowance of 20-25 mm is reserved in the length direction of the whole king-shaped steel column, additionally arranging channel steel with the specification of C10 between BH-shaped steel columns of the king-shaped steel column, additionally arranging triangular reinforcing plates at corner joint parts of the structure, additionally arranging one channel steel at intervals of 1 meter in the length direction, applying tensile force to increase the whole rigidity of the structure, preventing the deformation of the component in the welding process, assembling a column bottom plate at the top of the structure before welding, and enabling the end milling faces of the top of the structure to be in close contact with the tire frames by utilizing the gravity generated by the column bottom plate, further ensuring the integral flatness of the milling surface of the top end, welding a main welding seam with the length of 500mm at the root of the milling surface of the top end by adopting a vertical welding mode, checking that the flatness of the milling surface of the top end is not changed, turning over a component, finishing welding the rest main welding seams by adopting a transverse welding position, simultaneously welding the welding seams at two sides in the welding process, and reducing the size deformation generated by welding stress;
step 4, welding the king-shaped characters and the bottom plate: after the welding seam of the main body of the component is welded, the component is manufactured in a flip-chip method, firstly, redundant welding seam shrinkage reserved in the length direction of the steel column body in the shape of the Chinese character 'wang' is cut off, the top end milling surface is contacted with a jig frame, the top end milling surface is used as a size control point, and the vertical stiffening plates are assembled and welded reversely; the method comprises the following steps of applying 3-5 mm of reverse deformation amount to a column bottom plate in a flame heating mode, then completing assembly of the column bottom plate and a body structure, reserving 4mm of welding seam shrinkage allowance, welding in a multi-person symmetric welding mode, guaranteeing that two sides of a welding part are uniformly stressed according to a penetration method of back chipping, arranging a jack support device between a top end milling surface and the upper surface of the column bottom plate in a welding process, controlling the vertical size of a component to be unchanged all the time under the action of external force, effectively reducing the overall omnibearing welding deformation of the component by combining a tie plate between the transverse directions of the component, and avoiding the change of the flatness of the top end milling surface due to welding stress;
step 5, effect checking: and after the steel column is manufactured, measuring and rechecking the key size of the steel column, and finishing the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759408.1A CN115030404B (en) | 2022-06-30 | 2022-06-30 | Construction method of thick plate oversized section combined king-shaped steel column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759408.1A CN115030404B (en) | 2022-06-30 | 2022-06-30 | Construction method of thick plate oversized section combined king-shaped steel column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115030404A true CN115030404A (en) | 2022-09-09 |
| CN115030404B CN115030404B (en) | 2023-08-08 |
Family
ID=83127764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210759408.1A Active CN115030404B (en) | 2022-06-30 | 2022-06-30 | Construction method of thick plate oversized section combined king-shaped steel column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115030404B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068436A (en) * | 1973-08-02 | 1978-01-17 | Kajima Corporation | H-shaped steel column base member and welding thereof |
| JPH11179592A (en) * | 1997-12-15 | 1999-07-06 | Nippon Steel Metal Prod Co Ltd | Material for backing in welding square column and its manufacture |
| US20100043338A1 (en) * | 2008-08-21 | 2010-02-25 | Houghton & Myers Llc | Building metal frame, and method of making, and components therefor including column assemblies and full-length beam assemblies |
| CN103785998A (en) * | 2014-02-20 | 2014-05-14 | 成军 | Manufacturing method of inclined electroslag welding component shaped like Chinese character 'ri' |
| CN104196166A (en) * | 2014-09-01 | 2014-12-10 | 江苏沪宁钢机股份有限公司 | Ultra-large type combined H-section steel column and manufacturing method thereof |
| CN107237452A (en) * | 2017-07-31 | 2017-10-10 | 江苏沪宁钢机股份有限公司 | One kind welding corner post and preparation method thereof |
-
2022
- 2022-06-30 CN CN202210759408.1A patent/CN115030404B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068436A (en) * | 1973-08-02 | 1978-01-17 | Kajima Corporation | H-shaped steel column base member and welding thereof |
| JPH11179592A (en) * | 1997-12-15 | 1999-07-06 | Nippon Steel Metal Prod Co Ltd | Material for backing in welding square column and its manufacture |
| US20100043338A1 (en) * | 2008-08-21 | 2010-02-25 | Houghton & Myers Llc | Building metal frame, and method of making, and components therefor including column assemblies and full-length beam assemblies |
| CN103785998A (en) * | 2014-02-20 | 2014-05-14 | 成军 | Manufacturing method of inclined electroslag welding component shaped like Chinese character 'ri' |
| CN104196166A (en) * | 2014-09-01 | 2014-12-10 | 江苏沪宁钢机股份有限公司 | Ultra-large type combined H-section steel column and manufacturing method thereof |
| CN107237452A (en) * | 2017-07-31 | 2017-10-10 | 江苏沪宁钢机股份有限公司 | One kind welding corner post and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115030404B (en) | 2023-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107675609B (en) | Structure of alternately-folded flange-type steel plate shear key and construction method thereof | |
| CN104805961B (en) | Oblique bracket girders layer steel column of slab abnormity and preparation method thereof | |
| CN205954660U (en) | Steel tower crane foundation structure | |
| CN104763085B (en) | The double T floor frames structures of assembled integral prestressing force and its construction method | |
| CN107035060A (en) | A kind of welding box-shaped component of heavy in section heavy wall and preparation method thereof | |
| CN104264789A (en) | Novel connecting node of cross grid structure, special molding bed and preparation method thereof | |
| CN105113786A (en) | Pad block support system for supporting fixed adjustable cast-in-situ stair formwork | |
| CN112536542A (en) | Manufacturing method of ramp steel box girder | |
| CN105239779B (en) | The construction method and Core Walls Structure of Core Walls Structure | |
| CN201738597U (en) | Sectional steel and steel pipe combined type support system of beam with high and large cross section | |
| CN103669665A (en) | Elevation difference joint construction technology for steel bar truss floor deck construction | |
| CN115030404A (en) | Method for building thick plate super-large section combined steel column shaped like Chinese character' wang | |
| CN101666159B (en) | Single silo slip form construction device | |
| CN107489271A (en) | Foursquare arc band groove heavy in section superelevation Fair-Faced Concrete Column template and construction method | |
| CN107513936B (en) | Upper-shaped side girder structure and manufacturing method | |
| CN212530010U (en) | Special template jig frame for sectional construction of outer plate of engine room | |
| CN110696994A (en) | Ship double-bottom segmented construction method | |
| CN113756601B (en) | Frame column replacement reinforcement construction method | |
| CN202989711U (en) | Track welding matching device | |
| CN109434315A (en) | A kind of processing technology thereof of Contiuum type cabinet shear wall structure | |
| CN105986829A (en) | Concrete lining steel mould trolley and processing process thereof | |
| CN212944752U (en) | Box pressure shaping tool | |
| CN203891215U (en) | Beam end partially restrained H-section steel frame joint | |
| CN210622368U (en) | Novel unsupported replacement shear wall concrete device | |
| CN114351927A (en) | Section steel concrete floor system and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |