CN111702362A - Welding method and welding structure of steel pipe column internal stiffening plate and bottom plate support - Google Patents
Welding method and welding structure of steel pipe column internal stiffening plate and bottom plate support Download PDFInfo
- Publication number
- CN111702362A CN111702362A CN202010449505.1A CN202010449505A CN111702362A CN 111702362 A CN111702362 A CN 111702362A CN 202010449505 A CN202010449505 A CN 202010449505A CN 111702362 A CN111702362 A CN 111702362A
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- China
- Prior art keywords
- pipe column
- steel pipe
- welding
- bottom plate
- steel
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
-
- 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
- E04B2001/2463—Connections to foundations
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a welding method and a welding structure of a stiffening plate and a bottom plate support inside a steel pipe column, wherein the stiffening plate is a cross stiffening plate formed by connecting four support plates, and the welding method comprises the following steps: a notch is formed in the connecting part of the steel pipe column and the bottom plate support between the adjacent support plates to expose a stiffening plate inside the steel pipe column, and the exposed stiffening plate is welded and fixed with the bottom plate support; and sealing the gap by adopting a repair welding steel plate. The welding method is simple, and can improve the connection stability between the steel pipe column and the bottom plate support and between the steel pipe column and the embedded plate.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a welding method and a welding structure of a stiffening plate and a bottom plate support inside a steel pipe column.
Background
Along with the construction of various complex structures of our country, the application of the super large complicated steel structure is more extensive, according to the complicated form and the stress characteristics of the steel structure, the requirement that the tubular column and the box-type steel column can satisfy horizontal and vertical loads is that the stress characteristics inside the steel column are: the method generally adopts the measure of thickening the wall thickness of the steel pipe column or arranging the cross stiffening plates, the cross stiffening plates are made of the same material as the steel pipe column and can be simultaneously finished with the steel pipe column when the steel pipe column is manufactured, and the cross stiffening plates are continuously arranged along the height of the steel pipe column to enhance the rigidity of the steel pipe column and prevent instability. Compared with two construction measures, the arrangement of the cross stiffening plates saves a large amount of steel resources, the stress characteristic is better, and the rigidity, the local stability and the overall stability of the steel pipe column can be improved.
In the prior art, as shown in fig. 1 and 2, when a steel pipe column 1 is connected with an embedded plate 2, a base plate support 3 is usually arranged between the embedded plate 2 and the steel pipe column 1, so that the bottom end of the steel pipe column 1 and the top end of the embedded plate 2 are respectively fixed with the base plate support 3, but when the steel pipe column 1 is welded and fixed with the base plate support 3, the cross stiffening plate 11 is positioned inside the steel pipe column 1, so that the connection between the cross stiffening plate 11 and the base plate support 3 is difficult.
Disclosure of Invention
In view of the above circumstances, the present invention provides a method and a structure for welding a steel pipe column internal stiffener to a base plate support, which solve the problem of poor connection stability between the existing steel pipe column and the base plate support.
In order to achieve the purpose, the invention adopts the technical scheme that: the welding method for the stiffening plate and the bottom plate support inside the steel pipe column is provided, the stiffening plate is a cross stiffening plate formed by connecting four support plates, and the welding method comprises the following steps:
a notch is formed in the connecting part of the steel pipe column and the bottom plate support between the adjacent support plates to expose a stiffening plate inside the steel pipe column, and the exposed stiffening plate is welded and fixed with the bottom plate support;
and sealing the gap by adopting a repair welding steel plate.
In the embodiment of the invention, the bottom edge of the steel pipe column and the bottom plate support are integrally welded and fixed after the steel plate repair welding construction is finished.
In the embodiment of the invention, the number of the notches is two, and the two notches are oppositely arranged on the steel pipe column.
In the embodiment of the invention, after one of the two gaps is repaired, the next gap is opened and repaired.
In the embodiment of the invention, the method also comprises the step of welding a liner on the inner side surface of the repair welding steel plate, wherein the liner is arranged close to the joint of the repair welding steel plate and the notch.
The invention also provides a welded structure of the stiffening plate and the bottom plate support inside the steel pipe column, which comprises the following components:
one end of the steel pipe column is connected with the bottom plate support, one end of the steel pipe column connected with the bottom plate support is provided with a notch which is arranged oppositely and is arranged on the steel pipe column between the support plates adjacent to the cross stiffening plate;
the cross stiffening plate is fixed in the steel pipe column, and one side, facing the bottom plate support, of the cross stiffening plate is welded and fixed with the bottom plate support;
and the repair welding steel plate is used for sealing the notch and is respectively welded and fixed with the steel pipe column and the bottom plate support at the notch.
In the embodiment of the invention, the inner side surface of the repair welding steel plate is fixed with the liner, and the liner is arranged close to the joint of the repair welding steel plate and the notch.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) the welding method is simple, the bottom of the steel pipe column is provided with the notch to expose the side part of the stiffening plate, so that the stiffening plate and the bottom plate support can be conveniently welded, the connecting strength between the steel pipe column and the bottom plate support can be effectively increased, the notches arranged at intervals and the repair welding steel plates can ensure the stability of the bottom structure of the steel pipe column and the structural strength of the steel pipe column, and the connecting stability between the pre-buried plate and the steel pipe column is improved.
(2) The arrangement of the gasket can prevent the steel pipe column from being melted through during welding, and the structural strength of the steel pipe column is improved.
Drawings
FIG. 1 is a schematic view of a connection structure of a steel pipe column, a bottom plate support and an embedded plate in the prior art.
Fig. 2 is a schematic plan view of a prior art steel pipe string.
Fig. 3 is a schematic plan view of a steel pipe column provided with a first notch and a second notch according to the present invention.
Fig. 4 is a schematic plan view of the stiffener plate welded to the base plate carrier of the present invention.
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 according to the present invention.
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4 according to the present invention.
The correspondence of reference numerals to components is as follows:
the prior art is as follows:
a steel pipe column 1; a stiffening plate 11; pre-buried plate 2; a base plate support 3;
the invention comprises the following steps:
a steel pipe column 4; a stiffening plate 41; a first notch 42; a second notch 43; a base plate support 5; a first repair-welded steel plate 61; a second repair-welded steel plate 62; a first gasket 71; a second gasket 72; and a third gasket 73.
Detailed Description
As shown in fig. 1 and 2, when the steel pipe column 1 is welded and fixed to the base plate support 3 in the prior art, the stiffening plate 11 is located inside the steel pipe column 1, and the stiffening plate 11 cannot be fixed to the base plate support 3, so that the connection stability between the steel pipe column 1 and the base plate support 3 is poor.
To facilitate an understanding of the present invention, the following description is made in conjunction with the accompanying drawings and examples.
The invention provides a welding structure of a stiffening plate and a bottom plate support inside a steel pipe column, which comprises the following components: the steel pipe column comprises a steel pipe column 4, a stiffening plate 41 and two repair welding steel plates, wherein one end of the steel pipe column 4 is connected with a bottom plate support 5, one end of the steel pipe column 4 connected with the bottom plate support 5 is provided with oppositely arranged notches, the notches are arranged on the steel pipe column 4 between adjacent support plates of the cross stiffening plate 41, specifically, the notches are a first notch 42 and a second notch 43 which are oppositely arranged, and the first notch 42 and the second notch 43 are positioned at the diagonal positions of the steel pipe column 4; the stiffening plate 41 is a cross stiffening plate formed by connecting four support plates, the stiffening plate 41 is fixed in the steel pipe column 4, and one side of the stiffening plate 41 facing the bottom plate support 5 is welded and fixed with the bottom plate support 5; and the two repair welding steel plates are used for sealing the gap and are respectively welded and fixed with the steel pipe column 4 and the bottom plate support 5 at the gap.
Preferably, the inner side surface of each repair-welded steel plate is fixed with a liner, and the liner is arranged close to the joint of the repair-welded steel plate and the notch.
Preferably, as shown in fig. 3, the end of the stiffening plate 41 connected to the repair-welded steel plate is provided with a chamfered notch to facilitate welding of the stiffening plate 41 to the repair-welded steel plate.
Preferably, the repair-welded steel plates are arc-shaped plates, and the length of the arc-shaped plates is substantially equal to one fourth of the circumference of the steel pipe column 4.
The welding structure of the steel pipe column internal stiffening plate and the bottom plate support is described above specifically, and the welding method of the steel pipe column internal stiffening plate and the bottom plate support is described below, taking the two notches as an example, and comprises the following steps:
as shown in fig. 3 and 4, a first notch 42 is formed at a connection part of the steel pipe column 4 and the bottom plate support 5 between the adjacent support plates to expose the stiffening plate 4 inside the steel pipe column 4, and the exposed stiffening plate 41 and the bottom plate support 5 are welded and fixed; preferably, the stiffening plate 41 is a cross stiffening plate formed by assembling four support plates, two adjacent support plates are vertically arranged, and the first notch 42 is located between the adjacent support plates of the cross stiffening plate.
A first repair welding steel plate 61 is adopted to seal the first notch 42; preferably, after the stiffening plate exposed through the first notch is welded with the bottom plate support 5 and before the first notch 42 is closed, welding a first liner 71 on the inner side surface of the first repair-welded steel plate 61, wherein the first liner 71 is arranged close to the joint of the first repair-welded steel plate 61 and the first notch 42, and the arrangement of the first liner 71 can avoid that the first repair-welded steel plate 42 is melted through at the welding position when the first repair-welded steel plate 61 is adopted to close the first notch 42; preferably, the material adopted in the repair welding process is the same as that of the steel pipe column 4; in the embodiment of the present invention, as shown in fig. 4 and 5, the first gasket 71 includes four pieces, which are respectively located at four corners of the first repair-welded steel plate 61.
A second notch 43 opposite to the first notch 42 is formed at the connecting part of the steel pipe column 4 and the bottom plate support 5 between the adjacent support plates to expose the stiffening plate 41 inside the steel pipe column 4, and the exposed stiffening plate 41 and the bottom plate support 5 are welded and fixed; the first notch 42 and the second notch 43 are arranged oppositely, so that the situation that the structural strength of one side of the steel pipe column 4 is greatly damaged and the balance of the structural strength of the steel pipe column 4 is influenced due to the fact that the distance between the first side part and the second side part of the stiffening plate 41 is too short can be avoided; the arrangement of the two notches is beneficial to avoiding the influence on the service performance of the steel pipe column 4 caused by the strength reduction of the bottom of the steel pipe column 4 due to the arrangement of more notches at the bottom of the steel pipe column 4.
A second repair-welded steel plate 62 is adopted to seal the second gap 43; preferably, after the stiffening plate 41 exposed through the second notch is welded with the bottom plate support 5 and before the second notch 43 is closed, welding a second liner 72 on the inner side surface of the second repair-welded steel plate 62, wherein the second liner 72 is arranged close to the joint of the second repair-welded steel plate 61 and the second notch 43, and the second liner 72 can avoid the second repair-welded steel plate 62 from being melted through at the welding position when the second repair-welded steel plate 61 is adopted to close the second notch 43; preferably, the material adopted in the repair welding process is the same as that of the steel pipe column 4; in the embodiment of the present invention, as shown in fig. 4 and 6, the second gasket 71 includes four pieces, which are respectively located at four corners of the second repair-welded steel plate 62.
The welding method further comprises the following steps: integrally welding the outer ring of the steel pipe column 4 with the bottom plate support 5, preferably, fully penetration welding the outer ring of the steel pipe column 4 with the bottom plate support 5; in the embodiment of the invention, the bottom of the inner side surface of the steel pipe column 4 is also provided with a third gasket 73 so as to prevent the outer ring of the steel pipe column 4 from being melted through when the outer ring of the steel pipe column 4 is welded with the bottom plate support 5.
Preferably, after the integral welding is finished, the method further comprises the steps of carrying out appearance and nondestructive inspection monitoring on the welding seam and carrying out rust prevention treatment on the welding seam.
According to the invention, the transverse bearing capacity and the vertical bearing capacity of the steel pipe column 4 can be improved by welding the stiffening plate 41 in the steel pipe column 4, and the stiffening plate 41 and the bottom plate support 5 are welded and fixed in a notch repair welding steel plate mode, so that the connection strength of the steel pipe column 4 and the bottom plate support 5 can be improved; the notch adopts the mode of interval arrangement can guarantee structural strength and the equilibrium of 4 bottoms of steel-pipe column, guarantees the performance of steel-pipe column 4.
In the embodiment of the invention, the section of the steel pipe column is circular or rectangular, and the shape of the steel pipe column is not limited to circular or rectangular.
The welding method is not only suitable for the connection between the steel pipe column and the bottom plate support, but also can be used for improving the connection stability between the steel pipe column and other structures and increasing the overall stability of the structure when any steel pipe column with the stiffening plate inside is connected with other structures and the structural stability is poor because the stiffening plate cannot be connected with other structures.
According to the invention, the steel pipe column 4 can be preliminarily fixed by opening and repair welding the second notch 43 after the repair welding construction of the first notch 42 is finished, so that the construction safety is ensured.
The solid (flux cored) welding wire CO is adopted for transverse welding, horizontal welding, vertical welding and overhead welding in the process of welding the cross stiffening plate and the bottom plate support2Gas Metal Arc Welding (GMAW).
In the embodiment of the invention, the welding requirement of the stiffening plate and the steel pipe column is full penetration welding, and the welding of the liner is single-side full penetration welding.
In the embodiment of the invention, as shown in fig. 4, vertical welding seams and horizontal welding seams are formed between the peripheral edges of the first repair-welded steel plate 61 and the second repair-welded steel plate 62 and the steel pipe column 4, and the gradient of the vertical welding seams and the horizontal welding seams is 35 degrees; as shown in fig. 5, a 35 ° weld is formed at the connection part of the steel pipe column 4 and the floor bracket 5; a liner weld is formed between the first liners 71 of the first repair-welded steel plates 61, and a liner weld is formed between the second repair-welded steel plates 62 and the second liners 72; as shown in fig. 6, a spacer weld is formed between the steel pipe column 4 and the third spacer 73.
While the present invention has been described in detail and with reference to the accompanying drawings and examples, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (7)
1. A method for welding a stiffening plate and a bottom plate support inside a steel pipe column is characterized in that the welding method comprises the following steps:
a notch is formed in the connecting part of the steel pipe column and the bottom plate support between the adjacent support plates to expose a stiffening plate inside the steel pipe column, and the exposed stiffening plate is welded and fixed with the bottom plate support;
and sealing the gap by adopting a repair welding steel plate.
2. The method for welding the stiffening plate inside the steel pipe column and the bottom plate support according to claim 1, further comprising integrally welding and fixing the bottom edge of the steel pipe column and the bottom plate support after the steel plate repair welding construction is completed.
3. The method for welding the steel pipe column internal stiffening plate and the bottom plate support according to claim 1, wherein the number of the notches is two, and the two notches are oppositely arranged on the steel pipe column.
4. The method for welding the steel pipe column internal stiffening plate and the bottom plate support according to claim 3, wherein after one of the two notches is repaired, the next notch is opened and repaired.
5. The method for welding the stiffening plate inside the steel pipe column and the bottom plate support according to claim 4, further comprising welding a liner on the inner side surface of the repair-welded steel plate, wherein the liner is arranged close to the joint of the repair-welded steel plate and the notch.
6. The utility model provides an inside stiffening plate of steel-pipe column and welded structure of bottom plate support which characterized in that includes:
one end of the steel pipe column is connected with the bottom plate support, one end of the steel pipe column connected with the bottom plate support is provided with a notch which is arranged oppositely and is arranged on the steel pipe column between the support plates adjacent to the cross stiffening plate;
the cross stiffening plate is fixed in the steel pipe column, and one side, facing the bottom plate support, of the cross stiffening plate is welded and fixed with the bottom plate support;
and the repair welding steel plate is used for sealing the notch and is respectively welded and fixed with the steel pipe column and the bottom plate support at the notch.
7. The welded structure of the steel pipe column internal stiffening plate and the bottom plate support according to claim 6, wherein a liner is fixed to the inner side surface of each repair-welded steel plate, and the liner is arranged close to the joint of the repair-welded steel plate and the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010449505.1A CN111702362A (en) | 2020-05-25 | 2020-05-25 | Welding method and welding structure of steel pipe column internal stiffening plate and bottom plate support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010449505.1A CN111702362A (en) | 2020-05-25 | 2020-05-25 | Welding method and welding structure of steel pipe column internal stiffening plate and bottom plate support |
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| Publication Number | Publication Date |
|---|---|
| CN111702362A true CN111702362A (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010449505.1A Pending CN111702362A (en) | 2020-05-25 | 2020-05-25 | Welding method and welding structure of steel pipe column internal stiffening plate and bottom plate support |
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| CN (1) | CN111702362A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041855A (en) * | 2022-06-30 | 2022-09-13 | 山河智能特种装备有限公司 | Welding structure and welding process for ultrahigh-strength steel and high-strength steel |
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|---|---|---|---|---|
| CN101311481A (en) * | 2007-05-25 | 2008-11-26 | 贵阳铝镁设计研究院 | Steel column foot reinforced structure |
| CN102220786A (en) * | 2010-04-15 | 2011-10-19 | 沈阳铝镁设计研究院有限公司 | Hinge connection structure and method for supporting steel columns on steel beams |
| CN102966244A (en) * | 2012-12-07 | 2013-03-13 | 马钢(集团)控股有限公司 | Process for connection among steel structure workshop roof truss, brackets and columns |
| CN205189147U (en) * | 2015-12-05 | 2016-04-27 | 杭州铁木辛柯钢结构设计有限公司 | Draw -in groove assembled steel -pipe column and girder steel connected node |
| CN105587040A (en) * | 2016-03-11 | 2016-05-18 | 中国建筑第八工程局有限公司 | Rear cover tile type steel pipe column dislocation butt joint mechanism and assembly welding method |
| CN205444490U (en) * | 2016-03-11 | 2016-08-10 | 中国建筑第八工程局有限公司 | Back tiling formula steel -pipe column dislocation docking mechanism |
| CN109208409A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Riding-type Monorail Switch beam and preparation method thereof |
| CN210395647U (en) * | 2019-06-03 | 2020-04-24 | 中国建筑第八工程局有限公司 | Steel structure hemisphere supporting node |
-
2020
- 2020-05-25 CN CN202010449505.1A patent/CN111702362A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311481A (en) * | 2007-05-25 | 2008-11-26 | 贵阳铝镁设计研究院 | Steel column foot reinforced structure |
| CN102220786A (en) * | 2010-04-15 | 2011-10-19 | 沈阳铝镁设计研究院有限公司 | Hinge connection structure and method for supporting steel columns on steel beams |
| CN102966244A (en) * | 2012-12-07 | 2013-03-13 | 马钢(集团)控股有限公司 | Process for connection among steel structure workshop roof truss, brackets and columns |
| CN205189147U (en) * | 2015-12-05 | 2016-04-27 | 杭州铁木辛柯钢结构设计有限公司 | Draw -in groove assembled steel -pipe column and girder steel connected node |
| CN105587040A (en) * | 2016-03-11 | 2016-05-18 | 中国建筑第八工程局有限公司 | Rear cover tile type steel pipe column dislocation butt joint mechanism and assembly welding method |
| CN205444490U (en) * | 2016-03-11 | 2016-08-10 | 中国建筑第八工程局有限公司 | Back tiling formula steel -pipe column dislocation docking mechanism |
| CN109208409A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Riding-type Monorail Switch beam and preparation method thereof |
| CN210395647U (en) * | 2019-06-03 | 2020-04-24 | 中国建筑第八工程局有限公司 | Steel structure hemisphere supporting node |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041855A (en) * | 2022-06-30 | 2022-09-13 | 山河智能特种装备有限公司 | Welding structure and welding process for ultrahigh-strength steel and high-strength steel |
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Application publication date: 20200925 |
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