CN115263013A - Industrial plant joist column cutting method and industrial plant joist structure - Google Patents
Industrial plant joist column cutting method and industrial plant joist structure Download PDFInfo
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- CN115263013A CN115263013A CN202210847659.5A CN202210847659A CN115263013A CN 115263013 A CN115263013 A CN 115263013A CN 202210847659 A CN202210847659 A CN 202210847659A CN 115263013 A CN115263013 A CN 115263013A
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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 9
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000009466 transformation 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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- 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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- 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 plant reconstruction, and discloses a method for cutting columns of a joist of an industrial plant and a joist structure of the industrial plant, 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 can be in sliding butt joint with the column to be disassembled; arranging a guide chain at one side close to the column to be disassembled; pulling the guide chain to enable one end, close to the to-be-dismounted column, of the underpinning truss to move downwards, and fixing the underpinning truss to the to-be-dismounted column until the stress of the to-be-dismounted column is detected to be zero; cutting the ground-supported portion of the column to be demolished releases the guide chain to allow the underpinning truss to rebound and transfer the load of the column to be demolished through the underpinning truss to the remaining column adjacent to the column to be demolished. The invention solves the technical problems of complicated operation procedures, long construction period and high manufacturing cost of supporting large column spacing caused by the fact that a roof system above the bent columns needs to be replaced to match with the removal of corresponding bent columns when the column spacing is enlarged in a conventional steel structure industrial factory building.
Description
Technical Field
The invention relates to the field of steel structure plant reconstruction, in particular to a method for cutting columns of a joist of an industrial plant and a joist structure of the industrial plant.
Background
At present, in a heavy steel structure industrial factory building, when the column distance needs to be enlarged due to production process transformation or other reasons, individual bent columns are often required to be dismantled, and the purpose of enlarging the column distance is achieved. The conventional roof truss interval is usually equal to the bent frame column interval, column distance is enlarged, a roof is forced to be lifted to remove bent frame columns, the roof needs to be laid again after removal, and the problems of complex procedures, long construction period and high construction cost exist.
Disclosure of Invention
The invention aims to solve the technical problems of complicated working procedures, long construction period and high manufacturing cost of large column spacing support caused by the fact that a roof system above a bent column needs to be replaced to match with the removal of a corresponding bent column when a conventional steel structure industrial factory building expands the column spacing in the prior art.
In order to achieve the aim, the invention provides a method for cutting columns of joists of an industrial factory building.
The industrial factory building comprises at least three bent columns arranged at equal intervals, a roof system arranged above the bent columns and crane beams lapped among the bent columns, the bent frame column comprises reserved columns and columns to be disassembled, the columns to be disassembled are arranged between the adjacent reserved columns, and the bent frame column cutting method is characterized by comprising 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 can be in sliding abutting joint with the column to be disassembled;
s2, positioning a guide chain: arranging a guide chain for connecting the ground and the underpinning truss on one side close to the column to be disassembled;
s3, bracket inverted arch: pulling a guide chain to enable one end, close to the column to be disassembled, of the underpinning truss to move downwards, and fixing the underpinning truss to the column to be disassembled until the stress of the column to be disassembled is detected to be zero;
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 as to enable the underpinning truss to rebound and transfer the load of the column to be disassembled to the reserved column adjacent to the column to be disassembled through the underpinning truss.
The method for cutting the joist of the industrial factory building comprises the steps of arranging a underpinning truss between a reserved column and a column to be disassembled, enabling one end of the underpinning truss to be fixedly arranged on the reserved column, enabling the other end of the underpinning truss to be in sliding abutting connection with the column to be disassembled, arranging a guide chain for connecting the ground and the underpinning truss on one side of the column to be disassembled, pulling the guide chain downwards to enable one end, close to the column to be disassembled, of the underpinning truss to move downwards until the stress of the column to be disassembled is detected to be zero, fixing the underpinning truss to the column to be disassembled, cutting the part, supported on the bottom, of the column to be disassembled, loosening the guide chain to enable the underpinning truss to rebound, transmitting the load of the column to be disassembled to the reserved column to be disassembled to be adjacent to the column to be disassembled through the underpinning truss, cutting and removing the part, supporting the bottom of the column to be disassembled, so as to enlarge the column spacing of the adjacent bent columns, and further solving the problems that when the column spacing is enlarged in the conventional industrial factory building, the roof system above the bent columns needs to be replaced, the roof needs to be matched with a long construction period, and the construction period of the roof is long.
Preferably, in the step S2 of positioning the guide chain, a reinforcing frame is disposed on one side of the underpinning truss close to the column to be disassembled, and the guide chain is connected with the underpinning truss through the reinforcing frame.
Preferably, a sliding limit bolt is arranged on a butt surface of the underpinning truss and the column to be disassembled, and in the step S3 of inverted arching of the bracket, the underpinning truss applies downward acting force to the column to be disassembled through the sliding limit bolt.
Preferably, an installation groove is formed in the abutting surface, and the sliding limiting bolt is arranged in the installation groove to allow the sliding limiting bolt fixed on the column to be dismounted to slide along the installation groove relative to the underpinning truss.
Preferably, in the step S1 of seating the cradle, the underpinning truss is arranged to: the underpinning truss extends obliquely upwards in a direction from the retaining column to the column to be dismantled.
Preferably, the underpinning truss (4) is arranged below the crane beam.
Preferably, in the step S3 of reversely arching the bracket, the underpinning truss is connected with the column to be dismantled through a fixing bolt, and a plurality of fixing bolt holes are formed in the abutting surface of the column to be dismantled and the underpinning truss along the axial direction of the column to be dismantled.
Preferably, in the step S4 of cutting the column, the column to be disassembled is cut along the horizontal height of the bottom end of the part of the underpinning truss, which is connected with the column to be disassembled.
The invention provides a joist structure of an industrial factory building in a second aspect.
Industry factory building joist structure is through according to any one of the aforesaid industry factory building joist cut post method reconstruction form, row's frame post, setting including three piece at least equidistant settings are in roofing system and the overlap joint of row's frame post top are in crane beam between the row's frame post, the row's frame post includes side column and intermediate column, the intermediate column passes through the unsettled setting of bracket and is adjacent in the middle of the side column.
Preferably, the middle portion of the bracket is inverted toward the roofing system to transfer the load of the center post to the side posts adjacent to the center post through the underpinning truss.
Drawings
FIG. 1 is a flow chart of a method for cutting columns of joists of an industrial factory building according to an embodiment of the invention;
FIG. 2 is a schematic view of a beam and column structure of the industrial plant of FIG. 1 without construction money;
FIG. 3 is a schematic view of the FIG. 1 cradle in place;
FIG. 4 is a schematic view of the guide chain of FIG. 1 in position;
FIG. 5 is a schematic view of the structure of FIG. 1 with the chain guides pulled down to invert the truss;
fig. 6 is a schematic view of the structure of fig. 1 with the column cut.
Description of the reference numerals
1. Bent columns; 101. retaining the column; 102. a column to be disassembled; 2. a roofing system; 3. a crane beam; 4. underpinning the truss; 5. guiding a chain; 6. and a reinforcing frame.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, 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, but may include other steps or elements not 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 6, the industrial factory building comprises at least three framed pillars 1 arranged at equal intervals, a roofing system 2 arranged above the framed pillars, and crane beams 3 lapped between the framed pillars 1, wherein the framed pillars 1 comprise retention pillars 101 and to-be-removed pillars 102, and the to-be-removed pillars 102 are arranged between adjacent retention pillars 101. The invention provides a method for cutting columns of joists 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 4 can be in slidable abutting joint with 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 at one side close to the column 102 to be dismantled;
s3, bracket inverted arch: pulling the guide chain 5 to enable one end, close to the to-be-disassembled column 102, of the underpinning truss 4 to move downwards, and fixing the underpinning truss 4 to the to-be-disassembled column 102 until the stress of the to-be-disassembled column 102 is detected to be zero;
s4, column cutting: the ground-supported part of the column 102 to be dismantled is cut and the guide chains 5 are released, so that the underpinning girder 4 springs back and transfers the load of the column 102 to be dismantled through the underpinning girder 4 to the remaining column 101 adjacent to the column 102 to be dismantled.
The method for cutting the joist of the industrial factory building comprises the steps of arranging a underpinning truss between a reserved column and a column to be disassembled, enabling one end of the underpinning truss to be fixedly arranged on the reserved column, enabling the other end of the underpinning truss to be in sliding abutting connection with the column to be disassembled, arranging a guide chain for connecting the ground and the underpinning truss on one side of the column to be disassembled, pulling the guide chain downwards to enable one end, close to the column to be disassembled, of the underpinning truss to move downwards until the stress of the column to be disassembled is detected to be zero, fixing the underpinning truss to the column to be disassembled, cutting the part, supported on the bottom, of the column to be disassembled, loosening the guide chain to enable the underpinning truss to rebound, transmitting the load of the column to be disassembled to the reserved column to be disassembled to be adjacent to the column to be disassembled through the underpinning truss, cutting and removing the part, supporting the bottom of the column to be disassembled, so as to enlarge the column spacing of the adjacent bent columns, and further solving the problems that when the column spacing is enlarged in the conventional industrial factory building, the roof system above the bent columns needs to be replaced, the roof needs to be matched with a long construction period, and the construction period of the roof is long.
According to the invention, the underpinning truss 4 is arranged between the reserved columns and the columns to be dismantled, and the bearing capacity of the columns 102 to be dismantled on the roof system 2 is dispersed to the adjacent reserved columns 101 by using the inverted arch of the underpinning truss 4, so that the columns 102 to be dismantled do not bear load any more, and the part of the columns 102 to be dismantled, which is connected to the ground, is conveniently cut, thereby realizing the expansion of the column distance of the bent frame columns 1. In other embodiments of the present invention, it is also possible to realize load removal of the column to be removed 102 by disposing a steel member between the retaining column 101 and the column to be removed 102 and by lifting the steel member upward or obliquely upward so that the steel member is inverted so as to distribute the load on the column to be removed 102 to the adjacent retaining column 101, so as to cut the portion of the column to be removed 102 supported on the ground, thereby realizing expansion of the bent-up column 1 column pitch.
In the optional embodiment of the present invention, in the step S2 of positioning the guide chain, the reinforcing frame 6 is disposed on one side of the underpinning truss 4 close to the column 102 to be disassembled, and the guide chain 5 is connected to the underpinning truss 4 through the reinforcing frame 6, and the arrangement of the reinforcing frame 6 can improve the structural stability of the connection between the underpinning truss 4 and the guide chain 5, and at the same time, the guide chain 5 can be conveniently connected to the reinforcing frame 6 at a position more suitable for applying a 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 underpinning truss 4 is deformed under the action of the tension of the guide chain 5, so that the stability of the subsequent fixed installation of the underpinning truss 4 and the column 102 to be disassembled is influenced. In a further alternative embodiment of the invention, the reinforcement frame 6 is placed around and welded to the underpinning girder 4 to improve the structural strength of the underpinning girder 4.
In an alternative embodiment of the present invention, a sliding limit bolt is disposed on an abutting surface of the underpinning truss 4 and the column 102 to be disassembled, and in the step S3 of the bracket being inverted, 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, the abutment surface is provided with a mounting groove in which a sliding limit bolt is arranged to allow the sliding limit bolt fixed to the column 102 to be dismantled to move along the mounting groove relative to the underpinning girder 4. Further optionally, the mounting groove is provided with a mounting hole for fixing the underpinning truss 4. 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 dismantled through the sliding limiting bolt. So that the fixed underpinning truss 4 can be inverted upwards to distribute the load on the column to be dismantled 102 to the adjacent remaining columns 101.
In an alternative embodiment of the invention, in the step S1 of positioning the cradle, the underpinning truss 4 is arranged: in the direction from the retaining column 101 to the column 102 to be removed, the underpinning truss 4 extends obliquely upwards, so that when the underpinning truss 4 is arched reversely, an upward force can be applied to the column 102 to be removed, thereby unloading the load on the column 102 to be removed to the adjacent retaining column 101 and providing working conditions for cutting the end of the column 102 to be removed supported on the bottom surface.
In an alternative embodiment of the invention, the underpinning truss 4 is arranged below the crane beam 3 to avoid affecting the crane operation on the crane beam 3, the space below the crane beam 3 being more convenient for the construction of the underpinning truss 4 than the space above it.
In the optional embodiment of the present invention, in the step S3 of bracket anti-arching, the underpinning truss 4 and the to-be-dismantled column 102 are connected by fixing bolts, and a plurality of fixing bolt holes are arranged on the abutting surfaces of the to-be-dismantled column 102 and the underpinning truss 4 along the axial direction of the to-be-dismantled column 102, so as to fix the positions according to different construction requirements.
In the optional embodiment of the present invention, in the step S4 of column cutting, the column 102 to be disassembled is cut along the horizontal height of the bottom end of the connection portion of the underpinning truss 4 and the column 102 to be disassembled, so that more operation space is reserved below the underpinning truss 4 while the stability of the overall structure of the newly formed joist structure after the column 102 to be disassembled is ensured, which is beneficial to the utilization of plant space.
The invention provides a joist structure of an industrial factory building, which is reconstructed by the joist pillar cutting method of the industrial factory building according to any one of the joists, and comprises at least three framed pillars arranged at equal intervals, a roof system arranged above the framed pillars and a crane beam lapped between the framed pillars, wherein the framed pillars comprise side pillars and middle pillars, and the middle pillar is arranged between the adjacent side pillars in a suspended manner through a bracket.
In a further alternative embodiment of the invention, the middle of the bracket is inverted in the direction of the roofing system to transfer the load of the intermediate column through the underpinning truss to the side columns adjacent to the intermediate column.
The foregoing is illustrative of preferred/alternative embodiments of the present invention and is not to be construed as limiting thereof, as numerous modifications and variations will occur to 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 (10)
1. The utility model provides an industry factory building joist cuts post method, industry factory building includes row's frame post (1), the setting of three at least equidistant settings are in roofing system (2) of row's frame post top and overlap joint are in crane beam (3) between row's frame post (1), row's frame post (1) is including keeping post (101) and waiting to tear open post (102), it is adjacent to wait to tear open post (102) set up between keeping post (101), its characterized in that, industry factory building joist cuts post method includes the following step:
s1, positioning a bracket: a underpinning truss (4) is arranged between the reserved column (101) and the column (102) to be dismantled, one end of the underpinning truss (4) is fixedly arranged on the reserved column (101), and the other end of the underpinning truss can be in slidable contact with the column (102) to be dismantled;
s2, positioning a guide chain: a guide chain (5) for connecting 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, close to the column to be disassembled (102), of the underpinning truss (4) to move downwards, and fixing the underpinning truss (4) to the column to be disassembled (102) until the stress of the column to be disassembled (102) is detected to be zero;
s4, column cutting: cutting the part of the column (102) to be dismantled, which is supported on the ground, and releasing the guide chain (5) so that the underpinning truss (4) rebounds and transfers the load of the column (102) to be dismantled to the remaining column (101) adjacent to the column (102) to be dismantled through the underpinning truss (4).
2. The method for intercepting columns by joists in industrial factory buildings according to claim 1, wherein in the step S2 of putting the guide chains in place, a reinforcing frame (6) is arranged on one side of the underpinning truss (4) close to the column (102) to be dismantled, and the guide chains (5) are connected with the underpinning truss (4) through the reinforcing frame (6).
3. The method for cutting the column from the joist of the industrial factory building according to claim 1, characterized in that the abutting surface of the underpinning truss (4) and the column to be disassembled (102) is provided with a sliding limit bolt, and in the step S3 of the bracket reverse arching, the underpinning truss (4) applies downward acting force to the column to be disassembled (102) through the sliding limit bolt.
4. The method for intercepting columns of joists of industrial factory buildings according to claim 3, wherein the abutment surface is provided with a mounting groove in which the sliding limit bolt is arranged 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 truncation method according to claim 1, wherein in the bracket seating step S1, the underpinning truss (4) is arranged to: the underpinning truss (4) extends obliquely upwards in the direction from the retention column (101) to the column to be dismantled (102).
6. The method for intercepting columns in joists of industrial plants according to claim 1, characterized in that the underpinning truss (4) is arranged below the crane beam (3).
7. The method for cutting the joist of the industrial factory building into the column according to claim 1, wherein in the step S3 of inverted arching of the bracket, the underpinning truss (4) and the column to be disassembled (102) are connected through fixing bolts, 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).
8. The method for column truncation of joists of industrial factory buildings according to claim 1, wherein in the column truncation step S4, the column to be dismantled (102) is cut along the horizontal height of the bottom end of the part of the underpinning truss (4) that meets the column to be dismantled (102).
9. The joist structure of the industrial factory building is formed by rebuilding according to the joist column cutting method of any one of claims 1 to 8, and comprises at least three equidistant row frame columns, a roofing system arranged above the row frame columns and a crane beam lapped between the row frame columns, wherein the row frame columns comprise side columns and middle columns, and the middle columns are arranged in the middle of the adjacent side columns in a hanging mode through brackets.
10. The industrial plant joist structure as claimed in claim 9 wherein the middle portion of the brackets is inverted in the direction of the roofing system to transfer the load of the center post through the underpinning truss to the side posts adjacent to the center 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 |
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| 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 |
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| CN115263013A true CN115263013A (en) | 2022-11-01 |
| CN115263013B CN115263013B (en) | 2024-03-01 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115263013B (en) | 2024-03-01 |
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