CN111188410A - Construction method and structure for internal and external lapping of box-type steel beam - Google Patents
Construction method and structure for internal and external lapping of box-type steel beam Download PDFInfo
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- CN111188410A CN111188410A CN202010117895.2A CN202010117895A CN111188410A CN 111188410 A CN111188410 A CN 111188410A CN 202010117895 A CN202010117895 A CN 202010117895A CN 111188410 A CN111188410 A CN 111188410A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2457—Beam to beam connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a construction method and a structure for internal and external lapping of box steel beams, two sections of box steel beams (1) are hoisted to positions needing to be installed, a pre-connecting plate (3) and high-strength bolts (4) are used for positioning and primarily fixing the box steel beams at the joint of the two sections of box steel beams, and after the positions and elevations of the two sections of box steel beams are fixed without errors, the high-strength bolts on the connecting plates are screwed down. Firstly, carrying out single-side full-weld welding on welding seams at two sides of the web plate (5); then placing a sealing strip to perform single-side full-weld welding on the welding seam (9) of the bottom wing plate from the inside of the box-shaped steel beam; finally, a sealing strip and a cover plate (12) are placed to carry out single-side full-weld welding on the welding seam (13) of the top wing plate. The box-type steel beam can be processed by a specialized factory, and only the box-type steel beam produced by the specialized factory needs to be butted in the construction process, so that the construction efficiency is greatly improved, and the labor force is saved; and the problems of poor welding effect, insufficient welding seam strength and other structural safety problems in the prior art are solved.
Description
Technical Field
The invention relates to a construction method and a construction structure for internal and external lapping of a box-shaped steel beam, and belongs to the technical field of construction of building main bodies.
Background
With the technical innovation and transformation upgrade of the national building industry, the box-type steel beam is the trend of the industry as a structural member of a large-span space building. In the prior art, structural safety problems such as poor welding effect, insufficient welding seam strength and the like easily occur in the assembling and welding construction process of the box-type steel beam, and meanwhile, the welding process in the prior art cannot meet the production requirements of projects on the labor cost and the progress requirements.
In order to effectively improve the quality and performance of a steel structure building, effectively save production time, improve production efficiency, meet the use requirements of customers and ensure better sustainable development of real estate enterprises, how to improve the integrity and safety of the steel structure building, how to reduce the difficulty of hoisting and welding of box-shaped steel beams, how to ensure the welding quality of the box-shaped steel beams, how to shorten the hoisting and welding time of the box-shaped steel beams and enable the problems of meeting social requirements and the like to become main factors influencing the development of industrial engineering, a construction method and a structure for inside and outside lapping of the box-shaped steel beams are researched. Therefore, the prior art still has the defects and needs to be further improved.
Disclosure of Invention
The invention aims to provide a construction method and a construction structure for internal and external lapping of a box type steel beam, so as to effectively improve the quality and performance of a box type steel beam structure building, effectively save production time and improve production efficiency, and further overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a construction method for internal and external lapping of a box type steel beam, which comprises the following steps:
a. cutting a section of top wing plate at the splicing position of two sections of box-shaped steel beams to be spliced, and then hoisting the two sections of box-shaped steel beams to a position needing to be installed;
b. the inner sides of two webs of two sections of box-shaped steel beams are connected into a whole through a pre-connecting plate and a group of high-strength bolts;
c. welding webs of two sections of box-type steel beams and a pre-connecting plate into a whole through web welding seams at the joint of the two webs of the two sections of box-type steel beams;
d. welding bottom wing plate sealing strips on the bottom surfaces of the butt joints of the bottom wing plates of the two sections of box-type steel beams, and welding the bottom wing plates and the bottom wing plate sealing strips of the two sections of box-type steel beams into a whole through bottom wing plate welding seams above the bottom wing plate sealing strips;
e. spot welding a top wing plate sealing strip on the bottom surface of the top wing plate notch of the two sections of box-shaped steel beams;
f. and (3) lapping the cover plate on the top wing plate sealing strips of the two sections of box-type steel beams, and welding the two ends of the cover plate, the top wing plate and the top wing plate sealing strips into a whole through top wing plate welding lines.
In the construction method for the inside and outside lap joint of the box-type steel beam, the web welding seam, the bottom wing plate welding seam and the top wing plate welding seam all adopt a full-length welding mode; welding grooves are formed in the welding port edges at the two ends of the bottom wing plate and the cover plate; wherein the top wing plate welding seam is polished to be smooth and level with the top wing plate top surface after full welding.
In the step b, the pre-connecting plate and the connecting holes of the webs of the two sections of box-type steel beams are drilled in a drilling mode, the pre-connecting plate and the connecting holes are preliminarily fixed through high-strength bolts, then the positions and the elevations of the two sections of box-type steel beams are adjusted, and the construction in the step d can be carried out by screwing the high-strength bolts after the situation that no errors exist is confirmed.
In the construction method for the inside and outside lap joint of the box-type steel beam, in the steps d and e, the bottom wing plate sealing strip is connected with the bottom surface of the butt joint of the bottom wing plate in a spot welding mode to prevent welding deformation; the top wing plate sealing strip is connected with the bottom surface of the butt joint of the top wing plate in a spot welding mode to prevent welding deformation; and after all the welding seams are fully welded, filling all the spot welding seams in a full welding mode.
The inside and outside lapping structure of the box-type steel beam, which is formed according to the inside and outside lapping construction method of the box-type steel beam, comprises two sections of box-type steel beams to be spliced; a gap is arranged at the splicing position of the top wing plates of the two sections of box-type steel beams; the inner sides of two webs of two sections of box-shaped steel beams are connected with a group of high-strength bolts through a pre-connecting plate, and the webs and the pre-connecting plate are welded into a whole through web welding seams; the bottom wing plate sealing strip is arranged at the bottom of the bottom wing plate of the two sections of box-shaped steel beams; the seam between the bottom wing plate and the bottom wing plate sealing strip of the two sections of box-shaped steel beams is welded into a whole through the bottom wing plate welding seam; a cover plate is arranged at the gap of the top wing plate of the two sections of box-type steel beams, and top wing plate sealing strips are arranged at the bottoms of the cover plate and the gap of the top wing plate; and the top wing plate of the two sections of box-shaped steel beams, the gap between the cover plate and the top wing plate sealing strip are welded into a whole through the top wing plate welding seam.
The inside and outside lapped structure of aforementioned box girder steel, its characterized in that: and welding grooves are arranged at the welding seams of the bottom wing plate, the top wing plate and the cover plate.
The inside and outside lapped structure of aforementioned box girder steel, its characterized in that: the web plate welding seam, the bottom wing plate welding seam and the top wing plate welding seam are all full-length welding seams; wherein the top surface of the welding seam of the top wing plate is flush with the top surface of the top wing plate.
Due to the adoption of the technical scheme, in the internal and external lapping structure of the box-shaped steel beam, the box-shaped steel beam can be deeply processed and produced by a professional factory, and only the box-shaped steel beam produced by the professional factory needs to be butted in the construction process, so that the construction efficiency is greatly improved, and the labor force is saved; and the problems that the welding effect is poor, the strength of a welding seam is insufficient and the like in the construction process in the prior art are solved, the requirements of project production cannot be met on the labor cost and the progress requirement and the like are solved.
Drawings
FIG. 1 is a schematic view of the construction method of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
The figures are labeled as follows: 1-box steel beam, 2-top wing plate, 3-pre-connecting plate, 4-high-strength bolt, 5-web plate, 6-web plate welding line, 7-bottom wing plate, 8-bottom wing plate sealing strip, 9-bottom wing plate welding line, 10-top wing plate sealing strip, 11-spot welding, 12-cover plate, 13-top wing plate welding line and 14-welding groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention relates to a construction method for internal and external lapping of a box type steel beam, which is shown in figure 1: the method comprises the following steps:
a. cutting a section of top wing plate 2 at the splicing position of two sections of box-shaped steel beams 1 to be spliced, and then hoisting the steel beams to a position needing to be installed;
b. the inner sides of two webs 5 of two sections of box-shaped steel beams 1 are connected into a whole through a pre-connecting plate 3 and a group of high-strength bolts 4; drilling holes in the pre-connecting plate 3 and connecting holes in web plates 5 of the two sections of box-shaped steel beams 1 in a matched drilling mode, preliminarily fixing the pre-connecting plate and the connecting holes through high-strength bolts 4, then adjusting the positions and elevations of the two sections of box-shaped steel beams 1, and tightening the high-strength bolts 4 after the situation that no errors exist is confirmed so as to carry out the next step of construction;
c. welding the webs 5 of the two sections of box-shaped steel beams 1 and the pre-connecting plate 3 into a whole through web welding seams 6 at the butt joint of the two webs 5 of the two sections of box-shaped steel beams 1;
d. welding bottom wing plate sealing strips 8 on the bottom surfaces of the butt joints of the bottom wing plates 7 of the two sections of box-shaped steel beams 1 in a spot mode, and welding the bottom wing plates 7 and the bottom wing plate sealing strips 8 of the two sections of box-shaped steel beams 1 into a whole through bottom wing plate welding lines 9 above the bottom wing plate sealing strips 8; the bottom wing plate sealing strip 8 is connected with the bottom surface of the butt joint of the bottom wing plate 7 in a spot welding 11 mode to prevent welding deformation; then, constructing a bottom wing plate welding seam 9;
e. spot welding a top wing plate sealing strip 10 on the bottom surface of the notch of the top wing plate 2 of the two sections of box-shaped steel beams 1; the top wing plate sealing strip 10 is firstly connected with the bottom surface of the butt joint of the top wing plate 2 in a spot welding 11 mode to prevent welding deformation;
f. and (3) lapping a cover plate 12 on top wing plate sealing strips 10 of two sections of box-shaped steel beams 1, and welding two ends of the cover plate 12, the top wing plate 2 and the top wing plate sealing strips 10 into a whole through top wing plate welding seams 13.
According to the construction method for the inside and outside lap joint of the box-type steel beam, the web welding seam 6, the bottom wing plate welding seam 9 and the top wing plate welding seam 13 are all in a full-length welding mode; welding grooves 14 are formed in the welded junction edges at the two ends of the bottom wing plate 7 and the cover plate 12; wherein, the top surface of the welding seam 13 of the top wing plate is polished to be smooth and is parallel and level with the top surface of the top wing plate 2 after the welding seam 13 of the top wing plate is fully welded. In the construction of the steps d and e, the bottom wing plate sealing strip 8 is firstly connected with the bottom surface of the butt joint part of the bottom wing plate 7 in a spot welding 11 mode so as to prevent welding deformation; then, constructing a bottom wing plate welding seam 9; the top wing plate sealing strip 10 is firstly connected with the bottom surface of the butt joint of the top wing plate 2 in a spot welding 11 mode to prevent welding deformation; and after all the welding seams are fully welded, filling all the welding seams of the spot welding 11 in a full welding mode.
The inside and outside lapping structure of the box steel beam, which is formed by the inside and outside lapping construction method of the box steel beam, as shown in figure 2, comprises two sections of box steel beams 1 to be spliced, and a gap is arranged at the splicing position of the top wing plates 2 of the two sections of box steel beams 1; the inner sides of two webs 5 of two sections of box-shaped steel beams 1 are connected with a group of high-strength bolts 4 through a pre-connecting plate 3, and the webs 5 and the pre-connecting plate 3 are welded into a whole through web welding seams 6; the bottom wing plate sealing strip 8 is arranged at the bottom of the bottom wing plate 7 of the two sections of box-shaped steel beams 1; the gap between the bottom wing plate 7 and the bottom wing plate sealing strip 8 of the two sections of box-shaped steel beams 1 is welded into a whole through a bottom wing plate welding seam 9; a cover plate 12 is arranged at the gap of the top wing plate 2 of the two sections of box-type steel beams 1, and a top wing plate sealing strip 10 is arranged at the bottom of the gap between the cover plate 12 and the top wing plate 2; the top wing plate 2 and the gap between the cover plate 12 and the top wing plate sealing strip 10 of the two sections of box-shaped steel beams 1 are welded into a whole through a top wing plate welding seam 13. Welding grooves 14 are arranged at the welding seams of the bottom wing plate 7, the top wing plate 2 and the cover plate 12. The web plate welding seam 6, the bottom wing plate welding seam 9 and the top wing plate welding seam 13 are all full-length welding seams; wherein the top surface of the top wing plate weld seam 13 is flush with the top surface of the top wing plate 2.
The specific implementation process of the invention is as shown in fig. 1 and fig. 2, two sections of box-type steel beams 1 to be assembled and welded are hoisted to the positions to be installed by using hoisting equipment or tools, the positions of the two sections of box-type steel beams 1 are adjusted according to the designed elevation, a pre-connecting plate 3 is vertically placed on the inner side of a web plate 5 at the joint of the two sections of box-type steel beams 1, connecting holes of the pre-connecting plate 3 and the web plate 5 of the two sections of box-type steel beams 1 are drilled in a drilling mode, so that the connecting holes on the pre-connecting plate 3 are consistent with the connecting holes at the joint of the box-type steel beams 1 to be assembled, then a group of high-strength bolts 4 are used for primarily connecting the pre-connecting plate 3 with the web plate 5 of the box-type steel beams 1, and after the positions and elevations of.
After the pre-connecting plate 3 is firmly connected with the box-shaped steel beam 1, firstly, performing single-side full-weld welding on web welding seams 6 on two sides of a web 5 by using carbon dioxide gas shielded welding equipment; then, a bottom wing plate sealing strip 8 is placed at the bottom of the joint of the bottom wing plates 7 of the box-shaped steel beam 1, and single-side full-weld welding is carried out on the bottom-side abutted seam from the inside and the outside of the box-shaped steel beam 1; finally, two top wing plate sealing strips 10 are placed, a cover plate 12 is covered, and single-side full-welding is carried out on two abutted seams of the top wing plate 2.
In the inside and outside lapping structure of the box-type steel beam, the box-type steel beam can be deeply processed and produced by a professional factory, and only the box-type steel beam produced by the professional factory needs to be butted in the construction process, so that the construction efficiency is greatly improved, and the labor force is saved; and the problems that the welding effect is poor, the strength of a welding seam is insufficient and the like in the construction process in the prior art are solved, the requirements of project production cannot be met on the labor cost and the progress requirement and the like are solved.
Claims (7)
1. A construction method for internal and external lapping of a box steel beam is characterized in that: the method comprises the following steps:
cutting a section of top wing plate at the splicing position of two sections of box-shaped steel beams to be spliced, and then hoisting the two sections of box-shaped steel beams to a position needing to be installed;
the inner sides of two webs of two sections of box-shaped steel beams are connected into a whole through a pre-connecting plate and a group of high-strength bolts;
welding webs of two sections of box-type steel beams and a pre-connecting plate into a whole through web welding seams at the joint of the two webs of the two sections of box-type steel beams;
welding bottom wing plate sealing strips on the bottom surfaces of the butt joints of the bottom wing plates of the two sections of box-type steel beams, and welding the bottom wing plates and the bottom wing plate sealing strips of the two sections of box-type steel beams into a whole through bottom wing plate welding seams above the bottom wing plate sealing strips;
spot welding a top wing plate sealing strip on the bottom surface of the top wing plate notch of the two sections of box-shaped steel beams;
and (3) lapping the cover plate on the top wing plate sealing strips of the two sections of box-type steel beams, and welding the two ends of the cover plate, the top wing plate and the top wing plate sealing strips into a whole through top wing plate welding lines.
2. The construction method for the inside and outside lapping of the box-type steel beam according to claim 1, characterized in that: the web plate welding seam, the bottom wing plate welding seam and the top wing plate welding seam all adopt a full-length welding mode; welding grooves are formed in the welding port edges at the two ends of the bottom wing plate and the cover plate; wherein the top wing plate welding seam is polished to be smooth and level with the top wing plate top surface after full welding.
3. The construction method for the inside and outside lapping of the box-type steel beam according to claim 1, characterized in that: and in the step b, drilling holes in the pre-connecting plate and the connecting holes of the webs of the two sections of box-type steel beams in a drilling mode, preliminarily fixing the pre-connecting plate and the webs of the two sections of box-type steel beams through high-strength bolts, adjusting the positions and the elevations of the two sections of box-type steel beams, and tightening the high-strength bolts after the situation that no errors exist is confirmed so as to carry out the construction in the step d.
4. The construction method for the inside and outside lapping of the box-type steel beam according to claim 1, characterized in that: in the steps d and e, the bottom wing plate sealing strip is connected with the bottom surface of the butt joint of the bottom wing plate in a spot welding mode to prevent welding deformation; the top wing plate sealing strip is connected with the bottom surface of the butt joint of the top wing plate in a spot welding mode to prevent welding deformation; and after all the welding seams are fully welded, filling all the spot welding seams in a full welding mode.
5. The inside and outside lapping structure of the box steel beam formed by the inside and outside lapping construction method of the box steel beam according to any one of claims 1 to 4 comprises two sections of box steel beams (1) to be spliced; the method is characterized in that: a gap is arranged at the splicing position of the top wing plates (2) of the two sections of box-type steel beams (1); the inner sides of two webs (5) of two sections of box-shaped steel beams (1) are connected with a group of high-strength bolts (4) through a pre-connecting plate (3), and the webs (5) and the pre-connecting plate (3) are welded into a whole through web welding seams (6); bottom wing plate sealing strips (8) are arranged at the bottoms of the bottom wing plates (7) of the two sections of box-shaped steel beams (1); the gap between the bottom wing plate (7) and the bottom wing plate sealing strip (8) of the two sections of box-type steel beams (1) is welded into a whole through a bottom wing plate welding seam (9); a cover plate (12) is arranged at the gap of the top wing plate (2) of the two sections of box-type steel beams (1), and a top wing plate sealing strip (10) is arranged at the bottom of the gap between the cover plate (12) and the top wing plate (2); the top wing plate (2) and the cover plate (12) of the two sections of box-type steel beams (1) and the gap between the top wing plate sealing strip (10) are welded into a whole through a top wing plate welding seam (13).
6. The inside and outside lapping structure of the box steel girder according to claim 5, characterized in that: and welding grooves (14) are arranged at the welding seams of the bottom wing plate (7), the top wing plate (2) and the cover plate (12).
7. The inside and outside lapping structure of the box steel girder according to claim 5, characterized in that: the web plate welding seam (6), the bottom wing plate welding seam (9) and the top wing plate welding seam (13) are all full-length welding seams; wherein the top surface of the top wing plate welding seam (13) is flush with the top surface of the top wing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117895.2A CN111188410A (en) | 2020-02-25 | 2020-02-25 | Construction method and structure for internal and external lapping of box-type steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117895.2A CN111188410A (en) | 2020-02-25 | 2020-02-25 | Construction method and structure for internal and external lapping of box-type steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188410A true CN111188410A (en) | 2020-05-22 |
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ID=70705187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010117895.2A Pending CN111188410A (en) | 2020-02-25 | 2020-02-25 | Construction method and structure for internal and external lapping of box-type steel beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111188410A (en) |
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2020
- 2020-02-25 CN CN202010117895.2A patent/CN111188410A/en active Pending
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