CN115263013B - Joist column cutting method and joist structure for industrial factory building - Google Patents
Joist column cutting method and joist structure for industrial factory building Download PDFInfo
- Publication number
- CN115263013B CN115263013B CN202210847659.5A CN202210847659A CN115263013B CN 115263013 B CN115263013 B CN 115263013B CN 202210847659 A CN202210847659 A CN 202210847659A CN 115263013 B CN115263013 B CN 115263013B
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- truss
- underpinning
- disassembled
- joist
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009424 underpinning Methods 0.000 claims abstract description 99
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 8
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
Classifications
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the field of steel structure factory building transformation, and discloses an industrial factory building joist column cutting method and an industrial factory building joist structure, wherein the method comprises the following steps: a underpinning truss is arranged between the reserved column and the column to be disassembled, one end of the underpinning truss is fixedly arranged on the reserved column, and the other end of the underpinning truss is slidably abutted on the column to be disassembled; a guide chain is arranged at one side close to the column to be disassembled; pulling the guide chain to enable one end of the underpinning truss, which is close to the column to be disassembled, to move downwards until the stress of the column to be disassembled is detected to be zero, and fixing the underpinning truss to the column to be disassembled; cutting the portion of the column to be disassembled supported on the ground releases the guide chain so that the underpinning truss rebounds and transfers the load of the column to be disassembled to the reserved column adjacent to the column to be disassembled through the underpinning truss. The invention solves the technical problems of complicated working procedure, long construction period and high cost of supporting the large column spacing caused by the fact that the roof system above the row frame columns needs to be replaced to be matched with the disassembly of the corresponding row frame columns when the column spacing of the conventional steel structure industrial factory building is enlarged.
Description
Technical Field
The invention relates to the field of steel structure factory building transformation, in particular to an industrial factory building joist column cutting method and an industrial factory building joist structure.
Background
At present, in a heavy steel structure industrial factory building, when the column spacing needs to be enlarged due to production process transformation or other reasons, individual row frame columns often need to be dismantled, so that the purpose of enlarging the column spacing is achieved. The spacing of the conventional roof truss is often equal to the spacing of the bent columns, the column spacing is enlarged, the roof is lifted off to remove the bent columns, and the roof is required to be paved again after the removal, so that the problems of complicated working procedures, long construction period and high manufacturing cost exist.
Disclosure of Invention
The invention aims to solve the technical problems of complicated working procedure, long construction period and high cost of supporting a large column spacing caused by the fact that a roof system above a row frame column needs to be replaced to be matched with the disassembly of a corresponding row frame column when the column spacing of a conventional steel structure industrial factory building is enlarged in the prior art.
In order to achieve the above purpose, the invention provides a joist column interception method for an industrial factory building.
The industrial factory building includes at least three equidistant arrangement's bent posts, sets up roofing system and overlap joint in the bent post between the bent posts, the bent posts is including remaining the post and waiting to tear open the post, wait to tear open the post setting in adjacent between the reservation post, its characterized in that, industrial factory building joist cuts the post method includes the following steps:
s1, positioning a bracket: a underpinning truss is arranged between the reserved column and the column to be disassembled, one end of the underpinning truss is fixedly arranged on the reserved column, and the other end of the underpinning truss is slidably abutted on the column to be disassembled;
s2, positioning a guide chain: a guide chain for connecting the ground and the underpinning truss is arranged on one side close to the column to be disassembled;
s3, bracket inverted arch: pulling a guide chain to enable one end of the underpinning truss, which is close to the column to be disassembled, to move downwards until the stress of the column to be disassembled is detected to be zero, and fixing the underpinning truss to the column to be disassembled;
s4, column cutting: and cutting the part of the column to be disassembled, which is supported on the ground, and loosening the guide chain, so that the underpinning truss rebounds and the load of the column to be disassembled is transmitted to the reserved column adjacent to the column to be disassembled through the underpinning truss.
According to the joist interception method of the industrial factory building, the underpinning truss is arranged between the reserved column and the column to be dismantled, one end of the underpinning truss is fixedly arranged on the reserved column, the other end of the underpinning truss is in slidable abutting connection with the column to be dismantled, the guide chain for connecting the ground and the underpinning truss is arranged on one side of the column to be dismantled, the guide chain is pulled down to enable one end of the underpinning truss, which is close to the column to be dismantled, to move downwards until the stress of the column to be dismantled is detected to be zero, the underpinning truss is fixed to the column to be dismantled, the portion, which is supported on the bottom, of the column to be dismantled is cut, and the guide chain is loosened to enable the underpinning truss to rebound and transmit the load of the column to be dismantled to the reserved column adjacent to the column to be dismantled through the underpinning truss, so that the portion, which is supported on the bottom of the column to be dismantled, is cut and removed on the premise that the reserved column and the roof system above the column to be dismantled are not dismounted, and therefore the problem that when the column spacing of the column to be enlarged is required to be matched with the roof system above the column to be dismantled is large in the factory building is solved, and the construction cost is high due to the fact that the conventional steel structure industrial is enlarged.
Preferably, in the step S2 of positioning the guide chain, a reinforcing frame is disposed on a side, close to the column to be disassembled, of the underpinning truss, and the guide chain is connected with the underpinning truss through the reinforcing frame.
Preferably, a sliding limit bolt is arranged on the abutting surface of the underpinning truss and the column to be disassembled, and in the step S3 of the bracket inverted arch, the underpinning truss applies downward acting force to the column to be disassembled through the sliding limit bolt.
Preferably, the abutting surface is provided with a mounting groove, and the sliding limit bolt is arranged in the mounting groove so as to allow the sliding limit bolt fixed on the column to be disassembled to slide along the mounting groove relative to the underpinning truss.
Preferably, in step S1 in which the bracket is in place, the underpinning truss is arranged to: the underpinning truss extends obliquely upwards in a direction from the retaining column to the column to be detached.
Preferably, the underpinning truss (4) is arranged below the crane beam.
Preferably, in step S3 of the bracket inverted arch, the underpinning truss is connected with the column to be disassembled through a fixing bolt, and a plurality of fixing bolt holes are formed in an abutting surface of the column to be disassembled and the underpinning truss along an axial direction of the column to be disassembled.
Preferably, in the column cutting step S4, the column to be disassembled is cut along the horizontal height of the bottom end of the connection part of the underpinning truss and the column to be disassembled.
The second aspect of the invention provides an industrial plant joist structure.
The industrial factory building joist structure is reconstructed by the industrial factory building joist interception method according to any one of the above, and comprises at least three equidistant frame posts, a roof system arranged above the frame posts and crane beams lapped between the frame posts, wherein the frame posts comprise side posts and middle posts, and the middle posts are suspended in the middle of the adjacent side posts through brackets.
Preferably, the middle of the bracket is inverted toward the roofing system to transfer the load of the center pillar through the underpinning truss to the side pillar adjacent to the center pillar.
Drawings
FIG. 1 is a flow chart of a joist cut-off method of an industrial plant according to an embodiment of the present invention;
FIG. 2 is a schematic view of a beam column structure of the industrial plant of FIG. 1 without construction;
FIG. 3 is a schematic view of the structure of the bracket of FIG. 1 in place;
FIG. 4 is a schematic view of the guide chain of FIG. 1 in place;
FIG. 5 is a schematic view of the structure of the guide chain of FIG. 1 when pulled down to invert the truss;
fig. 6 is a schematic view of the structure of fig. 1 after the column is cut.
Description of the reference numerals
1. A rack column; 101. a retention column; 102. the column is to be disassembled; 2. a roofing system; 3. a crane beam; 4. underpinning the truss; 5. a guide chain; 6. and (5) reinforcing the frame.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "top", "bottom", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 6, the industrial plant comprises at least three equispaced bent columns 1, a roofing system 2 arranged above the bent columns and a crane beam 3 lapped between the bent columns 1, the bent columns 1 comprising reserved columns 101 and columns to be disassembled 102, the columns to be disassembled 102 being arranged between adjacent reserved columns 101. The invention provides a joist column-cutting method of an industrial factory building, which comprises the following steps:
s1, positioning a bracket: a underpinning truss 4 is arranged between the reserved column 101 and the column 102 to be disassembled, one end of the underpinning truss 4 is fixedly arranged on the reserved column 101, and the other end of the underpinning truss is slidably abutted on the column 102 to be disassembled;
s2, positioning a guide chain: a guide chain 5 for connecting the bottom surface and the underpinning truss 4 is arranged on one side close to the column 102 to be disassembled;
s3, bracket inverted arch: pulling the guide chain 5 to enable one end of the underpinning truss 4, which is close to the column 102 to be disassembled, to move downwards until the stress of the column 102 to be disassembled is detected to be zero, and fixing the underpinning truss 4 on the column 102 to be disassembled;
s4, column cutting: the portion of the column 102 to be disassembled supported on the ground is cut, and the guide chain 5 is loosened so that the underpinning truss 4 rebounds and the load of the column 102 to be disassembled is transmitted to the reserved column 101 adjacent to the column 102 to be disassembled through the underpinning truss 4.
According to the joist interception method of the industrial factory building, the underpinning truss is arranged between the reserved column and the column to be dismantled, one end of the underpinning truss is fixedly arranged on the reserved column, the other end of the underpinning truss is in slidable abutting connection with the column to be dismantled, the guide chain for connecting the ground and the underpinning truss is arranged on one side of the column to be dismantled, the guide chain is pulled down to enable one end of the underpinning truss, which is close to the column to be dismantled, to move downwards until the stress of the column to be dismantled is detected to be zero, the underpinning truss is fixed to the column to be dismantled, the portion, which is supported on the bottom, of the column to be dismantled is cut, and the guide chain is loosened to enable the underpinning truss to rebound and transmit the load of the column to be dismantled to the reserved column adjacent to the column to be dismantled through the underpinning truss, so that the portion, which is supported on the bottom of the column to be dismantled, is cut and removed on the premise that the reserved column and the roof system above the column to be dismantled are not dismounted, and therefore the problem that when the column spacing of the column to be enlarged is required to be matched with the roof system above the column to be dismantled is large in the factory building is solved, and the construction cost is high due to the fact that the conventional steel structure industrial is enlarged.
According to the invention, the underpinning truss 4 is arranged between the reserved column and the column to be disassembled, and the bearing capacity of the column to be disassembled 102 on the roof system 2 is dispersed to the adjacent reserved column 101 by utilizing the inverted arch of the underpinning truss 4, so that the column to be disassembled 102 does not bear load any more, and the part of the column to be disassembled 102 connected to the ground is cut conveniently, thereby realizing the expansion of the column pitch of the row frame column 1. In other embodiments of the present invention, the column distance of the rack column 1 can be enlarged by providing a steel member between the retaining column 101 and the column 102 to be disassembled and pulling the steel member upward or obliquely upward to cause the steel member to invert and disperse the load on the column 102 to be disassembled to the adjacent retaining column 101, and the disassembly of the load of the column 102 to be disassembled can be also achieved to facilitate the cutting of the portion of the column 102 to be disassembled supported on the ground.
In an alternative embodiment of the present invention, in the step S2 of positioning the guide chain, the side of the underpinning truss 4 close to the column 102 to be detached is provided with a reinforcing frame 6, the guide chain 5 is connected to the underpinning truss 4 through the reinforcing frame 6, and the reinforcing frame 6 is provided to improve the stability of the structure of the connection between the underpinning truss 4 and the guide chain 5, and to facilitate the selection of the connection position of the guide chain 5 on the reinforcing frame 6, which is more suitable for applying force to the underpinning truss 4. The direct connection of the guide chain 5 and the underpinning truss 4 can also be avoided, and the existing underpinning truss 4 deforms under the action of the tension of the guide chain 5, so that the stability of the subsequent underpinning truss 4 and the column 102 to be detached and installed is affected. In a further alternative embodiment of the invention, the reinforcing frame 6 is sleeved and welded on the underpinning truss 4 to improve the structural strength of the underpinning truss 4.
In an alternative embodiment of the present invention, a sliding limit bolt is provided on the abutting surface of the underpinning truss 4 and the column 102 to be disassembled, and in the step S3 of bracket arching, the underpinning truss 4 applies a downward acting force to the column 102 to be disassembled through the sliding limit bolt. In a further alternative embodiment of the invention, a mounting groove is provided in the abutment surface, in which a sliding limit bolt is provided to allow the sliding limit bolt fixed to the column 102 to be dismantled to move along the mounting groove relative to the underpinning truss 4. Further optionally, a mounting hole for fixing the underpinning truss 4 is arranged in the mounting groove. And the position of the mounting hole is not higher than the lowest point when the underpinning truss 4 applies downward force to the column 102 to be disassembled through the sliding limit bolt. So that the fixed underpinning truss 4 can be inverted upwards to spread the load on the column 102 to be dismantled to the adjacent retaining column 101.
In an alternative embodiment of the invention, in step S1, where the bracket is in place, the underpinning truss 4 is arranged to: the underpinning truss 4 extends obliquely upwards along the direction from the reserved column 101 to the column 102 to be disassembled so that an upward force can be applied to the column 102 to be disassembled, which is abutted against the underpinning truss 4 when the underpinning truss is inverted, and therefore the load on the column 102 to be disassembled is unloaded to the adjacent reserved column 101, and working conditions are provided for cutting the end of the column 102 to be disassembled, which is supported on the bottom surface.
In an alternative embodiment of the invention the underpinning truss 4 is arranged below the crane beam 3 in order to avoid influencing the operation of the crane on the crane beam 3, the space below the crane beam 3 being more convenient for construction of the arrangement of the underpinning truss 4 than the space above it.
In an alternative embodiment of the present invention, in step S3 of bracket arching, the underpinning truss 4 is connected with the column to be disassembled 102 through a fixing bolt, and a plurality of fixing bolt holes are arranged on the abutting surface of the column to be disassembled 102 and the underpinning truss 4 along the axial direction of the column to be disassembled 102, so as to fix the position according to different construction requirements.
In the alternative embodiment of the present invention, in the column interception step S4, the column to be disassembled 102 is cut along the horizontal height of the bottom end of the connection portion of the underpinning truss 4 and the column to be disassembled 102, so that while ensuring the stability of the whole structure of the newly formed joist structure after the column to be disassembled 102 is cut, more working space is reserved for the lower portion of the underpinning truss 4, and the utilization of the factory building space is facilitated.
The invention provides an industrial factory building joist structure which is reconstructed by the industrial factory building joist interception method according to any one of the above, and comprises at least three frame posts arranged at equal intervals, a roof system arranged above the frame posts and crane beams lapped between the frame posts, wherein the frame posts comprise side posts and middle posts, and the middle posts are suspended in the middle of the adjacent side posts through brackets.
In a further alternative embodiment of the invention, the middle of the bracket is inverted towards the roofing system to transfer the load of the intermediate column through the underpinning truss to the side column adjacent to the intermediate column.
The foregoing description of the preferred/alternative embodiments of the present invention is merely illustrative of the invention and is not intended to be limiting, as various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An industrial plant joist cut-off method, the industrial plant includes at least three equidistant arranged bent posts (1), roof system (2) set up above the bent posts and crane beam (3) lapped between the bent posts (1), the bent posts (1) include reserved posts (101) and wait to tear open posts (102), wait to tear open posts (102) set up between adjacent reserved posts (101), characterized in that, the industrial plant joist cut-off method includes the following steps:
s1, positioning a bracket: a underpinning truss (4) is arranged between the reserved column (101) and the column (102) to be disassembled, one end of the underpinning truss (4) is fixedly arranged on the reserved column (101), and the other end of the underpinning truss is slidably abutted on the column (102) to be disassembled;
s2, positioning a guide chain: a guide chain (5) which is connected with the ground and the underpinning truss (4) is arranged at one side close to the column (102) to be disassembled;
s3, bracket inverted arch: pulling a guide chain (5) to enable one end of the underpinning truss (4) close to the column (102) to be detached to move downwards until the stress of the column (102) to be detached is detected to be zero, and fixing the underpinning truss (4) to the column (102) to be detached;
s4, column cutting: cutting the part of the column (102) to be disassembled, which is supported on the ground, loosening the guide chain (5) so that the underpinning truss (4) rebounds and transmitting the load of the column (102) to be disassembled to the reserved column (101) adjacent to the column (102) to be disassembled through the underpinning truss (4).
2. The industrial plant joist column-cutting method according to claim 1, wherein in the step S2 of positioning the guide chain, a reinforcing frame (6) is provided on one side of the underpinning truss (4) close to the column (102) to be disassembled, and the guide chain (5) is connected with the underpinning truss (4) through the reinforcing frame (6).
3. The industrial plant joist column-cutting method according to claim 1, wherein a sliding limit bolt is provided on the abutting surface of the underpinning truss (4) and the column (102) to be disassembled, and in the step S3 of bracket arching, the underpinning truss (4) applies a downward acting force to the column (102) to be disassembled through the sliding limit bolt.
4. A joist cut-off method according to claim 3, wherein the abutment surface is provided with a mounting groove, and the sliding limit bolt is arranged in the mounting groove to allow the sliding limit bolt fixed on the column (102) to be dismantled to slide along the mounting groove relative to the underpinning truss (4).
5. The industrial plant joist cut-off method according to claim 1, wherein in step S1 of positioning the bracket, the underpinning truss (4) is arranged to: the underpinning truss (4) extends obliquely upwards in the direction from the retaining column (101) to the column (102) to be dismantled.
6. The industrial plant joist column-cutting method according to claim 1, wherein the underpinning truss (4) is arranged below the crane beam (3).
7. The joist cutting method of industrial factory building according to claim 1, wherein in the step S3 of bracket inverted arch, the underpinning truss (4) and the column (102) to be disassembled are connected through fixing bolts, and a plurality of fixing bolt holes are arranged on the abutting surface of the column (102) to be disassembled and the underpinning truss (4) along the axial direction of the column (102) to be disassembled.
8. The method according to claim 1, wherein in the step S4, the column (102) to be disassembled is cut along the horizontal height of the bottom end of the connecting part of the underpinning truss (4) and the column (102) to be disassembled.
9. An industrial plant joist structure, characterized in that the industrial plant joist structure is reconstructed by the industrial plant joist interception method according to any one of claims 1 to 8, and comprises at least three shelf posts arranged at equal intervals, a roofing system arranged above the shelf posts and a crane beam lapped between the shelf posts, wherein the shelf posts comprise side posts and middle posts, and the middle posts are arranged in the middle of the adjacent side posts in a suspending manner through brackets.
10. The industrial plant joist structure of claim 9, wherein a central portion of the bracket is inverted toward the roofing system to transfer load from the intermediate post through the joist truss to the side post adjacent the intermediate post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847659.5A CN115263013B (en) | 2022-07-19 | 2022-07-19 | Joist column cutting method and joist structure for industrial factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847659.5A CN115263013B (en) | 2022-07-19 | 2022-07-19 | Joist column cutting method and joist structure for industrial factory building |
Publications (2)
| Publication Number | Publication Date |
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| CN115263013A CN115263013A (en) | 2022-11-01 |
| CN115263013B true CN115263013B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210847659.5A Active CN115263013B (en) | 2022-07-19 | 2022-07-19 | Joist column cutting method and joist structure for industrial factory building |
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| CN (1) | CN115263013B (en) |
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| CN112502471A (en) * | 2020-12-30 | 2021-03-16 | 中国电建集团河南省电力勘测设计院有限公司 | Steel frame structure joist column pulling transformation and reinforcement method and structure |
| CN213418558U (en) * | 2020-09-16 | 2021-06-11 | 苏州中固建筑科技股份有限公司 | Reinforcing device for improving wood structure building column |
| CN214697054U (en) * | 2021-02-20 | 2021-11-12 | 中辰嘉亿建设集团有限公司 | Column-drawing reinforcing structure of single-storey factory building |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132064A (en) * | 2002-10-10 | 2004-04-30 | Takenaka Komuten Co Ltd | Construction method for performing remodeling by removing column of existing building |
| JP2010037746A (en) * | 2008-08-01 | 2010-02-18 | Sumitomo Forestry Co Ltd | Reinforcing structure and method for column-beam frame |
| JP2011038381A (en) * | 2009-08-18 | 2011-02-24 | Sumitomo Mitsui Construction Co Ltd | Reconstruction method for existing building |
| CN202202577U (en) * | 2011-08-18 | 2012-04-25 | 正益集团有限责任公司 | Post disassembly structure of pre-stressed support beam |
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| CN214697054U (en) * | 2021-02-20 | 2021-11-12 | 中辰嘉亿建设集团有限公司 | Column-drawing reinforcing structure of single-storey factory building |
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| Publication number | Publication date |
|---|---|
| CN115263013A (en) | 2022-11-01 |
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