CN115822117A - Construction method for steel structure buckling restrained brace - Google Patents
Construction method for steel structure buckling restrained brace Download PDFInfo
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- CN115822117A CN115822117A CN202211515347.0A CN202211515347A CN115822117A CN 115822117 A CN115822117 A CN 115822117A CN 202211515347 A CN202211515347 A CN 202211515347A CN 115822117 A CN115822117 A CN 115822117A
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- welding
- buckling restrained
- restrained brace
- adjusting
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 52
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 8
- 210000001503 joint Anatomy 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention relates to a construction method for a steel structure buckling restrained brace; combining and welding Liang Zhongjie point plates comprising buckling restrained braces and steel beams in a processing plant; adjusting the installation entry angle of the buckling restrained brace body by adjusting the lengths of the two front-end chain blocks; cutting off the oblique stiffening rib of the column base gusset plate, adjusting the angle of the oblique stiffening rib and eliminating the phenomenon of slab staggering; after the adjustment is finished, reinforcing the stiffening rib by spot welding to prevent the stiffening rib from deforming in the process of welding the interface; and after the upper and lower interfaces of the buckling restrained brace body are completely adjusted, welding is carried out. The construction method aims at the conditions that the upper and lower interfaces cannot be accurately positioned in place and cannot be effectively adjusted when the buckling restrained brace is installed, and provides a construction method which comprises the following steps: by adjusting the position of the buckling restrained brace node component and the operation method of adjusting the aerial installation posture of the buckling restrained brace by using the chain block, the installation precision of the steel structure buckling restrained brace to the interface is improved, and the installation quality and the impression quality are ensured.
Description
Technical Field
The invention relates to the technical field of construction of steel structures, in particular to a construction method for a steel structure buckling restrained brace.
Background
At present, the construction method of the steel structure buckling restrained brace gusset plate is generally that the gusset plate and the steel beam in the beam, and the column base gusset plate and the steel column are all assembled and welded in a processing plant, and are integrally hoisted on site. Once the deviation occurs in the processing and installation of the steel column and the steel beam, the upper and lower interfaces of the buckling restrained brace body cannot be accurately positioned when the buckling restrained brace body is installed, and no good method and measure are provided for effectively adjusting the buckling restrained brace body, so that the accuracy control cannot meet the deviation requirement of the design specification, and the installation quality and the impression quality of the buckling restrained brace are influenced.
Disclosure of Invention
The invention aims to overcome the defects and provides a construction method for the steel structure buckling restrained brace, which improves the mounting precision of the steel structure buckling restrained brace butt joint and ensures the mounting quality and the impression quality.
A construction method for a steel structure buckling restrained brace comprises the following steps:
step 1, combining and welding a node plate (1) and a steel beam (2) in a beam of a buckling restrained brace in a processing plant, and leaving a factory integrally; the column base node plates (3) are combined and disassembled in a processing plant and are welded with the steel columns (4) on site; a bevel is formed on the oblique stiffening rib (5) of the column base gusset plate in a processing plant, and spot welding treatment is carried out;
step 3, embedding the wire rope (11) into a magnet base of the strong magnet (12), respectively hanging the strong magnet on the beam middle gusset plate (1) and the column base gusset plate (3), wherein the wire rope (11) must be effectively attached to the web plate surfaces of the Liang Zhongjie gusset plate (1) and the column base gusset plate (3);
step 5, hanging two pairs of front-end chain blocks (14) at the upper end of the buckling restrained brace body (6) through mounting fixtures (13) on the steel beam (2), connecting and fixing the fixtures (13) through a clamping ring (17), hanging a pair of rear-end chain blocks (16) at the lower end through welding lifting lugs (15) on the steel beam (2), and connecting one pair of front-end chain blocks (14) and the other end to the lifting lugs (7);
step 6, adjusting the installation entry angle of the buckling restrained brace body (6) by adjusting the length of the front-end chain blocks (14) at the two front ends; after the buckling restrained brace body (6) enters a space between the beam middle gusset plate (1) and the column base gusset plate (3), firstly adjusting a front-end chain block (14) to align the buckling restrained brace body (6) with a butt joint of the beam middle gusset plate (1); then adjusting a rear-end chain block (16) to align the buckling restrained brace body (6) with the butt joint of the column base gusset plate (3);
step 7, cutting off the oblique stiffening ribs (5) of the column base gusset plate (3), adjusting the angles of the oblique stiffening ribs and eliminating the phenomenon of slab staggering; after the adjustment is finished, the stiffening rib (5) is reinforced by spot welding, so that the stiffening rib is prevented from deforming in the process of welding the interface;
step 8, welding after the upper and lower interfaces of the buckling restrained brace body (6) are completely adjusted; the welding sequence is as follows: backing welding an upper interface web plate (18) and a lower interface web plate (19); backing welding the lower interface stiffening rib (20); backing welding the upper interface stiffening rib (21); and (3) welding an upper interface web plate (18) and a stiffening rib (21), welding a lower interface web plate (19) and a stiffening rib (20), and welding a column foot gusset plate stiffening rib (5), thereby completing the welding.
The construction method aims at the conditions that the upper and lower interfaces cannot be accurately positioned in place and cannot be effectively adjusted when the buckling restrained brace is installed, and provides a construction method which comprises the following steps: by adjusting the position of the buckling restrained brace node component and the operation method of adjusting the aerial installation posture of the buckling restrained brace by using the chain block, the installation precision of the steel structure buckling restrained brace to the interface is improved, and the installation quality and the impression quality are ensured.
Drawings
FIG. 1 is a processing and assembling diagram of a buckling restrained brace gusset plate.
Figure 2 a buckling restrained brace column base gusset plate installation schematic.
FIG. 3 is a schematic view of a strong magnetic pull wire for adjusting a column base gusset plate.
Figure 4 shows a schematic view of the buckling restrained brace hoisting.
FIG. 5 is a weld schematic of a buckling restrained brace.
Detailed Description
The invention is further illustrated by the following specific examples.
A construction method for a steel structure buckling restrained brace comprises the following steps:
step 1, combining and welding a node plate (1) and a steel beam (2) in a beam of a buckling restrained brace in a processing plant, and leaving a factory integrally; the column base gusset plate (3) is made into combined parts in a processing plant and is welded and installed with the steel column (4) on site; a bevel is formed on the oblique stiffening rib (5) of the column base gusset plate in a processing plant, and spot welding treatment is carried out; as shown in fig. 1.
Step 3, embedding the wire rope (11) into a magnet base of the strong magnet (12), respectively hanging the strong magnet on the beam middle gusset plate (1) and the column base gusset plate (3), wherein the wire rope (11) must be effectively attached to the web plate surfaces of the Liang Zhongjie gusset plate (1) and the column base gusset plate (3); as shown in fig. 3.
step 5, hanging two pairs of front-end chain blocks (14) at the upper end of the buckling restrained brace body (6) through mounting fixtures (13) on the steel beam (2), connecting and fixing the fixtures (13) through snap rings (17), hanging a pair of rear-end chain blocks (16) at the lower end of the buckling restrained brace body through welding lifting lugs (15) on the steel beam (2), and connecting one pair of front-end chain blocks (14) and the other end of the buckling restrained brace body to the lifting lugs (7);
step 6, adjusting the installation entry angle of the buckling restrained brace body (6) by adjusting the length of the front-end chain blocks (14) at the two front ends; after the buckling restrained brace body (6) enters a space between the beam middle gusset plate (1) and the column base gusset plate (3), firstly adjusting a front-end chain block (14) to align the buckling restrained brace body (6) with a butt joint of the beam middle gusset plate (1); then adjusting a rear-end chain block (16) to align the buckling restrained brace body (6) with the butt joint of the column base gusset plate (3); as shown in fig. 4.
Step 7, cutting off the oblique stiffening ribs (5) of the column base gusset plate (3), adjusting the angles of the oblique stiffening ribs and eliminating the phenomenon of slab staggering; after the adjustment is finished, the stiffening rib (5) is reinforced by spot welding, so that the stiffening rib is prevented from deforming in the process of welding the interface;
step 8, welding after the upper and lower interfaces of the buckling restrained brace body (6) are completely adjusted; the welding sequence is as follows: backing welding an upper interface web plate (18) and a lower interface web plate (19); backing welding the lower interface stiffening rib (20); backing welding the upper interface stiffening rib (21); and (3) welding an upper interface web plate (18) and a stiffening rib (21), welding a lower interface web plate (19) and a stiffening rib (20), and welding a column foot gusset plate stiffening rib (5) to finish welding, as shown in figure 5.
The construction method aims at the conditions that the upper and lower interfaces cannot be accurately positioned in place and cannot be effectively adjusted when the buckling restrained brace is installed, and provides a construction method which comprises the following steps: by adjusting the position of the buckling restrained brace node component and the operation method of adjusting the aerial installation posture of the buckling restrained brace by using the chain block, the installation precision of the steel structure buckling restrained brace to the interface is improved, and the installation quality and the impression quality are ensured.
Claims (1)
1. A construction method for a steel structure buckling restrained brace comprises the following steps:
step 1, combining and welding a node plate (1) and a steel beam (2) in a beam of a buckling restrained brace in a processing plant, and leaving a factory integrally; the column base gusset plate (3) is made into combined parts in a processing plant and is welded and installed with the steel column (4) on site; the oblique stiffening rib (5) of the column base gusset plate is provided with a groove in a processing factory and is subjected to spot welding treatment;
step 2, welding lifting lugs (8) on the column base gusset plates (3), welding lug plates (9) on the steel columns (4), hanging the chain blocks (10) on the lug plates (9), connecting the other ends of the chain blocks to the lifting lugs (8), and installing the column base gusset plates (3) by adjusting the chain blocks (10); step 3, embedding the rope (11) into a magnet base of the strong magnet (12), respectively hanging the strong magnet on the beam middle node plate (1) and the column base node plate (3), wherein the rope (11) must be effectively attached to the web surfaces of the Liang Zhongjie node plate (1) and the column base node plate (3); step 4, after the cord (11) is pulled, the web surface of the beam middle gusset plate (1) is used as a reference surface, and a crow bar is used for lightly prying the column base gusset plate (3) until the web surface of the column base gusset plate (3) is attached to the cord (11);
step 5, hanging two pairs of front-end chain blocks (14) at the upper end of the buckling restrained brace body (6) through mounting fixtures (13) on the steel beam (2), connecting and fixing the fixtures (13) through snap rings (17), hanging a pair of rear-end chain blocks (16) at the lower end of the buckling restrained brace body through welding lifting lugs (15) on the steel beam (2), and connecting one pair of front-end chain blocks (14) and the other end of the buckling restrained brace body to the lifting lugs (7);
step 6, adjusting the installation entry angle of the buckling restrained brace body (6) by adjusting the length of the front-end chain blocks (14) at the two front ends; after the buckling restrained brace body (6) enters a space between the beam middle gusset plate (1) and the column base gusset plate (3), firstly adjusting a front-end chain block (14) to align the buckling restrained brace body (6) with a butt joint of the beam middle gusset plate (1); then adjusting a rear-end chain block (16) to align the buckling restrained brace body (6) with the butt joint of the column base gusset plate (3);
step 7, cutting off the oblique stiffening ribs (5) of the column base gusset plate (3), adjusting the angles of the oblique stiffening ribs and eliminating the phenomenon of slab staggering; after the adjustment is finished, the stiffening rib (5) is reinforced by spot welding, so that the stiffening rib is prevented from deforming in the process of welding the interface;
step 8, welding after the upper and lower interfaces of the buckling restrained brace body (6) are completely adjusted; the welding sequence is as follows: backing welding an upper interface web plate (18) and a lower interface web plate (19); backing welding the lower interface stiffening rib (20); backing welding the upper interface stiffening rib (21); and (3) welding an upper interface web plate (18) and a stiffening rib (21), welding a lower interface web plate (19) and a stiffening rib (20), and welding a column foot gusset plate stiffening rib (5), thereby completing the welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211515347.0A CN115822117A (en) | 2022-11-30 | 2022-11-30 | Construction method for steel structure buckling restrained brace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211515347.0A CN115822117A (en) | 2022-11-30 | 2022-11-30 | Construction method for steel structure buckling restrained brace |
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| CN115822117A true CN115822117A (en) | 2023-03-21 |
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| CN202211515347.0A Pending CN115822117A (en) | 2022-11-30 | 2022-11-30 | Construction method for steel structure buckling restrained brace |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643800A (en) * | 2013-12-12 | 2014-03-19 | 中建二局第三建筑工程有限公司 | Lifting installation system for buckling restrained supporting member and construction method thereof |
| CN105952229A (en) * | 2016-05-24 | 2016-09-21 | 成都市第建筑工程公司 | Installation and construction method for energy-dissipating type buckling-restrained brace |
| CN106760841A (en) * | 2016-12-01 | 2017-05-31 | 北京城建建设工程有限公司 | A kind of construction method of buckling restrained brace structure |
| US20190040645A1 (en) * | 2016-05-19 | 2019-02-07 | South China University Of Technology | Connecting gusset plate with sliding end plate for buckling-restrained brace |
| CN111042538A (en) * | 2019-11-26 | 2020-04-21 | 上海宝冶集团有限公司 | Hoisting and mounting method of buckling restrained brace |
-
2022
- 2022-11-30 CN CN202211515347.0A patent/CN115822117A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643800A (en) * | 2013-12-12 | 2014-03-19 | 中建二局第三建筑工程有限公司 | Lifting installation system for buckling restrained supporting member and construction method thereof |
| US20190040645A1 (en) * | 2016-05-19 | 2019-02-07 | South China University Of Technology | Connecting gusset plate with sliding end plate for buckling-restrained brace |
| CN105952229A (en) * | 2016-05-24 | 2016-09-21 | 成都市第建筑工程公司 | Installation and construction method for energy-dissipating type buckling-restrained brace |
| CN106760841A (en) * | 2016-12-01 | 2017-05-31 | 北京城建建设工程有限公司 | A kind of construction method of buckling restrained brace structure |
| CN111042538A (en) * | 2019-11-26 | 2020-04-21 | 上海宝冶集团有限公司 | Hoisting and mounting method of buckling restrained brace |
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