CN113738156A - Temporary support structure in limited space and dismantling method thereof - Google Patents
Temporary support structure in limited space and dismantling method thereof Download PDFInfo
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- CN113738156A CN113738156A CN202110921596.9A CN202110921596A CN113738156A CN 113738156 A CN113738156 A CN 113738156A CN 202110921596 A CN202110921596 A CN 202110921596A CN 113738156 A CN113738156 A CN 113738156A
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- temporary support
- support column
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- support structure
- lifting lug
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
- E04G25/00—Shores or struts; Chocks
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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
- E04G25/00—Shores or struts; Chocks
- E04G25/02—Shores or struts; Chocks non-telescopic
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a temporary support structure in a limited space and a dismantling method thereof, wherein the space comprises a top beam and a bottom plate, the support structure comprises a plurality of temporary support columns, the bottom of each support column is fixedly connected with the bottom plate, the top of each support column is propped against the top beam, each support column comprises a plurality of splicing sections and top connecting parts which are sequentially connected from bottom to top, the plurality of temporary support columns form a plurality of groups, the plurality of support columns in the same group are sequentially arranged along a first direction, the plurality of groups are sequentially arranged along a second direction, the height of each support column is h, the distance between every two adjacent groups is L, and L is larger than h. When the temporary support columns are dismantled, lifting lugs are welded on the temporary support columns and the top beam, the temporary support columns are lifted by the electric hoist, and the temporary support columns are gradually turned from the vertical state to the horizontal state and are placed on the ground. The support dismantling structure is mainly used for dismantling a high and heavy temporary support in a limited space where large hoisting machinery cannot operate, meets the support dismantling requirement and reduces the construction difficulty.
Description
Technical Field
The invention belongs to the technical field of civil engineering construction, and particularly relates to a temporary support structure in a limited space and a dismantling method thereof.
Background
In engineering practice, construction technical difficulties are usually encountered in arranging tall, large and heavy temporary supports in limited spaces. The difficulty mainly comprises the following aspects: large hoisting equipment cannot be adopted due to the influence of site conditions; and in the process of temporary supporting and hoisting, the hoisting capacity and hoisting posture of hoisting equipment are difficult to accurately determine by experience or site observation.
In general, heavy and large components are hoisted by adopting a gantry to heighten an empty vehicle for installation or directly adopting a truck crane for hoisting in place, the method is not only limited by various parameters of hoisting equipment, but also has higher requirements on hoisting visual field and operation space, and is not suitable for high and large temporary supporting hoisting in a limited space.
Disclosure of Invention
The present invention is directed to a temporary support structure in a limited space and a method for removing the same to solve the above problems.
The technical solution to achieve the above object is as follows:
a temporary supporting structure in a limited space, the space comprises a top beam and a bottom plate, the supporting structure comprises a plurality of temporary supporting columns, the bottom of each supporting column is fixedly connected with the bottom plate, the top of each supporting column is propped against the top beam,
the support column comprises a plurality of splicing sections and a top connecting part which are sequentially connected from bottom to top, a plurality of temporary support columns form a plurality of groups, the plurality of support columns in the same group are sequentially arranged along a first direction, the plurality of groups are sequentially arranged along a second direction, the height of each support column is h, the distance between every two adjacent groups is L, and L is larger than h.
Further, the top connecting part is a cylindrical connecting section, and the bottom of the cylindrical connecting section is fixedly connected with the uppermost splicing section, and the top of the cylindrical connecting section is fixedly connected with the top beam.
Furthermore, a plurality of embedded steels are embedded in the bottom of the top beam, and the top of each cylindrical connecting section is fixedly connected with the corresponding embedded steel.
Furthermore, the bottom of the cylindrical connecting section is connected with the splicing section bolt at the top, and the top of the cylindrical connecting section is connected with the top beam in a welding manner.
Further, the top connecting part is a power jacking device.
Further, the power jacking device is a hydraulic jack.
Further, the first direction and the second direction are perpendicular to each other.
The method for dismantling the temporary support structure in the limited space comprises the following steps:
the method comprises the following steps: removing the top connecting part at the top of the temporary support column;
step two: respectively welding two first lifting lugs and one second lifting lug on the upper part and the lower part of the temporary support column with the top connecting part removed, wherein the two first lifting lugs are respectively positioned on two sides of the temporary support column in the first direction, the second lifting lug is positioned on one side of the temporary support column in the second direction, and respectively welding third lifting lugs on top beams corresponding to the tops of two adjacent temporary support columns to be removed along the first direction;
step three: enabling the first electric hoist to penetrate through a first lifting lug and a corresponding third lifting lug on the upper portion of the temporary supporting column to be dismantled;
step four: removing the connection between the temporary support column to be removed and the bottom plate, and hoisting the temporary support column to be removed by using a first electric hoist;
step five: welding a fourth lifting lug on a top beam of the temporary support column to be dismantled, which corresponds to the second lifting lug along the second direction;
step six: the second electric hoist passes through the second lifting lug and the fourth lifting lug;
step seven: pulling the second electric hoist, and simultaneously loosening the first electric hoist until the temporary support column to be dismantled is laid on the ground;
step eight: and finishing the dismantling of other temporary support columns according to the steps two to seven.
Compared with the prior art, the invention has the beneficial effects that:
(1) the temporary support structure is simple in structure, the top support can be realized by assembling and connecting the splicing sections and the top connecting part, and the support stability is improved by arranging the plurality of temporary support columns;
(2) the method for dismantling the temporary support structure is simple and reasonable, can be realized by welding the lifting lugs and using a simple hoisting device, and is mainly used for dismantling tall and heavy temporary supports in limited space where large hoisting machinery cannot operate, so that the requirement for dismantling the supports is met, and the construction difficulty is reduced.
Drawings
FIG. 1 is a schematic elevation view of a temporary support structure within a confined space of the present invention.
Fig. 2 is a schematic elevational view with the top attachment portion removed.
Fig. 3 is a schematic view of the temporary support column being hoisted by the first electric block after the installation.
Fig. 4 is a schematic elevation view of the second electric block after the second electric block is mounted.
Fig. 5 is a schematic elevation view of the hoisting and turning of the temporary support column.
Description of the symbols in the drawings: the temporary support column 1, the cylindrical connecting section 12, the splicing section 11, the first lifting lug 121, the second lifting lug 111, the embedded steel 2, the third lifting lug 21, the fourth lifting lug 22, the first electric hoist 3 and the second electric hoist 4.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1, a temporary supporting structure in a limited space, the space includes a top beam and a bottom plate, the supporting structure includes a plurality of temporary supporting columns 1, the bottom of each supporting column 1 is fixedly connected (e.g. welded) with the bottom plate, the top of each supporting column 1 is against the top beam,
the support column 1 comprises a plurality of splicing sections 11 and a top connecting part which are sequentially connected from bottom to top, a plurality of temporary support columns 1 form a plurality of groups, the plurality of support columns in the same group are sequentially arranged along a first direction, the plurality of groups are sequentially arranged along a second direction, the height of each support column 1 is h, the distance between every two adjacent groups is L, and L is larger than h.
Further, the top connecting part is a cylindrical connecting section 12, the bottom of the cylindrical connecting section 12 is fixedly connected with the uppermost splicing section 11, and the top of the cylindrical connecting section is fixedly connected with the top beam.
Further, a plurality of embedded steels 2 are embedded in the bottom of the top beam, and the top of each cylindrical connecting section 12 is fixedly connected with the corresponding embedded steel 2.
Further, the bottom of the cylindrical connecting section 12 and the splicing section 11 at the top adopt flange plates and bolt connections, the top is connected with the top beam in a welding manner, and the splicing sections 11 adopt flange plates and bolt connections.
Further, the top connecting part is a power jacking device, preferably, the power jacking device is a hydraulic jack, the hydraulic jack is arranged at the upper part of the uppermost splicing section 11, and the jack is extended to the lower surface of the top beam to jack the top beam.
Further, the first direction and the second direction are perpendicular to each other.
The method for dismantling the temporary support structure in the limited space comprises the following steps:
the method comprises the following steps: as shown in fig. 2, the top connection part of the top of the temporary support post 1 is removed;
step two: respectively welding two first lifting lugs 121 and one second lifting lug 111 to the upper part and the lower part of the temporary support column 1 with the top connecting part removed, wherein the two first lifting lugs 121 are respectively positioned at two sides of the temporary support column 1 in the first direction, the second lifting lug 111 is positioned at one side of the temporary support column 1 in the second direction, and respectively welding third lifting lugs 21 to the embedded steel 2 of top beams corresponding to the tops of two adjacent temporary support columns 1 to be removed along the first direction;
step three: with reference to fig. 3, the first electric hoist 3 is inserted through the first lifting lug 121 and the corresponding third lifting lug 21 on the upper part of the temporary support column 1 to be dismantled;
step four: the method comprises the following steps of dismantling the connection between a temporary support column 1 to be dismantled and a bottom plate, hoisting the temporary support column 1 to be dismantled by using a first electric hoist 3, and before removing bottom constraint of the temporary support column 1, ensuring the chain rewinding tightness of the first electric hoist 3 to prevent the temporary support column 1 from being unstable after the bottom constraint is dismantled;
step five: with reference to fig. 4, a fourth lifting lug 22 is welded on the top beam of the temporary support column 1 corresponding to the second lifting lug 111 in the second direction of the temporary support column 1 to be dismantled;
step six: the second electric hoist 4 is inserted through the second lifting lug 111 and the fourth lifting lug 22;
step seven: with reference to fig. 5, the second electric hoist 4 is pulled, and the first electric hoist 3 starts to be loosened at the same time until the temporary support column 1 to be dismantled lies on the ground, and since L > h, enough space is available when the temporary support column 1 is laid flat, and the temporary support column 1 does not touch the adjacent temporary support column 1;
step eight: and finishing the dismantling of other temporary support columns 1 according to the steps two to seven.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A temporary support structure in a limited space, the space comprises a top beam and a bottom plate, the support structure comprises a plurality of temporary support columns (1), the bottom of each support column (1) is fixedly connected with the bottom plate, and the top of each support column leans against the top beam,
the supporting columns (1) comprise a plurality of splicing sections (11) and a top connecting part which are sequentially connected from bottom to top, a plurality of temporary supporting columns (1) form a plurality of groups, the supporting columns in the same group are sequentially arranged along a first direction, the groups are sequentially arranged along a second direction, the height of each supporting column (1) is h, the distance between every two adjacent groups is L, and L is larger than h.
2. Temporary support structure in a confined space according to claim 1, characterized in that said top connecting part is a cylindrical connecting section (12), the bottom of said cylindrical connecting section (12) being fixedly connected to the uppermost splicing section (11) and the top to said top beam.
3. The temporary support structure in the limited space according to claim 2, wherein a plurality of pre-buried steels (2) are pre-buried in the bottom of the top beam, and the top of each cylindrical connecting section (12) is fixedly connected with the corresponding pre-buried steel (2).
4. Temporary support structure in confined spaces according to claim 3, characterized in that the bottom of the cylindrical connecting section (12) is bolted to the uppermost splicing section (11) and the top is welded to the top beam.
5. A temporary support structure in a confined space as claimed in claim 1 wherein said top attachment portion is a powered jacking device.
6. A temporary support structure within a confined space as claimed in claim 5 wherein said powered jacking means is a hydraulic jack.
7. A temporary support structure in a confined space according to any one of claims 1 to 6 wherein said first and second directions are perpendicular to each other.
8. The method of demolition of a temporary support structure in a confined space according to claim 7, comprising the steps of:
the method comprises the following steps: the top connecting part at the top of the temporary supporting column (1) is dismantled;
step two: respectively welding two first lifting lugs (121) and a second lifting lug (111) to the upper part and the lower part of the temporary support column (1) with the top connecting part removed, wherein the two first lifting lugs (121) are respectively positioned at two sides of the temporary support column (1) in the first direction, the second lifting lug (111) is positioned at one side of the temporary support column (1) in the second direction, and respectively welding third lifting lugs (21) to top beams corresponding to the tops of two adjacent temporary support columns (1) of the temporary support column (1) to be removed along the first direction;
step three: the first electric hoist (3) penetrates through a first lifting lug (121) and a corresponding third lifting lug (21) on the upper portion of the temporary supporting column (1) to be detached;
step four: the connection between the temporary support column (1) to be dismantled and the bottom plate is dismantled, and the temporary support column (1) to be dismantled is hoisted by a first electric hoist (3);
step five: welding a fourth lifting lug (22) on a top beam of the temporary support column (1) corresponding to the second lifting lug (111) along the second direction of the temporary support column (1) to be dismantled;
step six: the second electric hoist (4) passes through the second lifting lug (111) and the fourth lifting lug (22);
step seven: pulling the second electric hoist (4), and simultaneously loosening the first electric hoist (3) until the temporary support column (1) to be dismantled lies on the ground;
step eight: and finishing the dismantling of other temporary support columns (1) according to the steps two to seven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921596.9A CN113738156A (en) | 2021-08-11 | 2021-08-11 | Temporary support structure in limited space and dismantling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921596.9A CN113738156A (en) | 2021-08-11 | 2021-08-11 | Temporary support structure in limited space and dismantling method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113738156A true CN113738156A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110921596.9A Pending CN113738156A (en) | 2021-08-11 | 2021-08-11 | Temporary support structure in limited space and dismantling method thereof |
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| Country | Link |
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| CN (1) | CN113738156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776038A (en) * | 2022-04-13 | 2022-07-22 | 北京首钢建设集团有限公司 | Steel truss installation structure and step unloading method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100769999B1 (en) * | 2006-08-02 | 2007-10-25 | 깨뱉시스템주식회사 | Improved support, self-supported improved support and system form using the same |
| CN103241652A (en) * | 2013-05-31 | 2013-08-14 | 中国海洋石油总公司 | Overturning process of heavy equipment |
| CN104528525A (en) * | 2014-12-19 | 2015-04-22 | 华泰重工(南通)有限公司 | Touchdown turning process of subsection |
| CN206887794U (en) * | 2017-06-30 | 2018-01-16 | 中铁二局集团有限公司 | A kind of supporting apparatus system during the segmentation dismounting for Continuous Bridge |
| CN111894307A (en) * | 2020-08-03 | 2020-11-06 | 浙江中天恒筑钢构有限公司 | Fully-assembled standardized temporary support structure and construction method |
-
2021
- 2021-08-11 CN CN202110921596.9A patent/CN113738156A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769999B1 (en) * | 2006-08-02 | 2007-10-25 | 깨뱉시스템주식회사 | Improved support, self-supported improved support and system form using the same |
| CN103241652A (en) * | 2013-05-31 | 2013-08-14 | 中国海洋石油总公司 | Overturning process of heavy equipment |
| CN104528525A (en) * | 2014-12-19 | 2015-04-22 | 华泰重工(南通)有限公司 | Touchdown turning process of subsection |
| CN206887794U (en) * | 2017-06-30 | 2018-01-16 | 中铁二局集团有限公司 | A kind of supporting apparatus system during the segmentation dismounting for Continuous Bridge |
| CN111894307A (en) * | 2020-08-03 | 2020-11-06 | 浙江中天恒筑钢构有限公司 | Fully-assembled standardized temporary support structure and construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776038A (en) * | 2022-04-13 | 2022-07-22 | 北京首钢建设集团有限公司 | Steel truss installation structure and step unloading method thereof |
| CN114776038B (en) * | 2022-04-13 | 2024-03-29 | 北京首钢建设集团有限公司 | Steel truss installation structure and step unloading method thereof |
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Application publication date: 20211203 |
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| RJ01 | Rejection of invention patent application after publication |