CN115217319B - High-altitude replacement construction method for attached lifting scaffold - Google Patents
High-altitude replacement construction method for attached lifting scaffold Download PDFInfo
- Publication number
- CN115217319B CN115217319B CN202210913453.8A CN202210913453A CN115217319B CN 115217319 B CN115217319 B CN 115217319B CN 202210913453 A CN202210913453 A CN 202210913453A CN 115217319 B CN115217319 B CN 115217319B
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- China
- Prior art keywords
- scaffold
- frame body
- attached lifting
- construction method
- drawknot
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000009194 climbing Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 description 8
- 101100481408 Danio rerio tie2 gene Proteins 0.000 description 4
- 101100481410 Mus musculus Tek gene Proteins 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/007—Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
-
- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
Abstract
The invention relates to the technical field of scaffold construction and discloses an overhead replacement construction method for an attached lifting scaffold. According to the attached lifting scaffold high-altitude replacement construction method, the new attached lifting scaffold is directly erected on the original attached lifting scaffold, so that the original scaffold body is not required to be removed to install the new scaffold body, the construction progress can be effectively ensured, and meanwhile, the construction period and the construction cost are well saved.
Description
Technical Field
The invention relates to the technical field of scaffold construction, in particular to an overhead replacement construction method of an attached lifting scaffold.
Background
At present, the scaffold is applied to a scaffold in building and manufacturing, the scaffold is a working platform erected for ensuring that the construction process is smoothly carried out, wherein the attached lifting scaffold is erected at a certain height and attached to an engineering structure in a high-rise building, and can climb or descend layer by layer along with the engineering structure by means of lifting equipment and devices of the attached lifting scaffold.
Disclosure of Invention
The purpose of the invention is that: the method for replacing the attached lifting scaffold from the high altitude is capable of directly erecting a new frame body without dismantling the frame body of the attached lifting scaffold with the erected bottom, so that the time consumption is greatly reduced.
The attached lifting scaffold high-altitude replacement construction method comprises the following steps:
1. a horizontal drawknot is arranged on a shear wall or a structural beam at a position close to the top surface of a floor type steel pipe scaffold serving as a mounting platform by using a steel pipe, a balcony and a bay window are reinforced by mounting a cast support on a structural plate surface, each drawknot point is ensured to be firmly connected, each drawknot rod piece is in a stressed state, and the stress at the position connected with the structure is reasonable;
2. a horizontal drawknot is arranged at a joint position, which is close to the connection between the top scaffold plate and the upright rod of the original frame body of the attached lifting scaffold, on a shear wall or a structural beam, and a balcony and a bay window are reinforced in a diagonal manner by installing a throwing support on a structural plate surface, so that each drawknot is firmly connected, each drawknot rod piece is in a stress state, and the stress at the position connected with the structure is reasonable;
3. wood Fang Dianping is used at the position of the main frame and the opposite positions of the inner and outer rows of upright posts;
4. a new frame body is arranged on the original frame body, one end of a top layer of the new frame body with four meters is connected with a steel pipe which is pre-buried in advance in the structure, and the other end is connected with a three-angle support and a vertical rod of the new frame body, so that the new frame body is fixed, the new frame body is prevented from toppling, and the process is repeated until the new frame body with the required height or layer number is achieved;
5. the new frame body is lifted by at least two layers and then the original frame body is removed.
As a preferable scheme of the invention, in the first step and the second step, the horizontal drawknot is a steel pipe with the diameter of 48mm and the wall thickness of 3.5 mm.
As a preferable scheme of the invention, in the first step, the height of the horizontal drawknot from the top surface of the installation platform is not more than 200mm, and the span of two connected horizontally-oriented drawknots is set according to 3-4.5 meters.
As a preferred scheme of the invention, in the second step, the height of the horizontal drawknot from the top scaffold board is not more than 200mm, and the span of two connected horizontal drawknots is set according to 3-4.5 m.
In the third step, the cross section of the batten is 50mmX100mm, five battens are overlapped in the vertical direction, each two battens are reinforced into a whole by using 80mm iron nails, the battens with C-shaped notches with the length of 700mm are cut and sawed into battens, the notches are matched with the vertical rods at the clamping positions to determine, the battens are clamped between the auxiliary guide rail and the outer vertical rods and the inner and outer vertical rods of the main frame, and the vertical rods are clamped through the cut notches to prevent the battens from moving left and right.
In the third step, iron wires are used for pasting the battens and the scaffold board surfaces together with the notches cut by the ends of the battens.
In the third step, the outer edge of the original frame is higher than the outer upright posts of the top-layer scaffold board, iron wires are respectively pulled along the outer edges of the original frame at positions away from the surface of the top-layer scaffold board, the safety net is firmly bound at positions 600mm and 1200mm away from the scaffold board, the safety net is folded and paved on the surface of the 10-meter scaffold board at the position of the surface of the flat scaffold board, and the iron wires are used for binding the safety net and the inner side frame and the outer side frame of the scaffold board at intervals of 1 meter in the horizontal direction.
As a preferable mode of the invention, in the fourth step, the diameter of the steel pipe is 48mm, the wall thickness is 3.5mm, and the length is 6 meters.
In the fifth step, the frame body at the end part of the tower crane and the climbing frame corner area is decomposed and removed according to the principle of firstly building and then removing, so that the lifting weight of the frame body is ensured to be less than 80% of the rated lifting weight.
Compared with the prior art, the attached lifting scaffold high-altitude replacement construction method has the beneficial effects that: by directly erecting a new attached lifting scaffold on the original attached lifting scaffold, the original frame body is not required to be dismantled to install the new frame body, so that the construction progress can be effectively ensured, and the construction period and the construction cost are well saved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention for installing a new frame on an original frame;
FIG. 2 is a schematic view of a reinforcement structure of a mounting platform in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a temporary reinforcement structure of an original frame in an embodiment of the present invention;
FIG. 4 is a schematic view of a mounting structure of a cutting opening of a batten according to an embodiment of the present invention;
fig. 5 is a schematic view of an installation structure of a new frame in an embodiment of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "mounted," "connected," and "connected" are to be construed broadly in this application, and may be either fixedly connected, detachably connected, or integrally connected, for example, unless otherwise explicitly stated and defined; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be further understood that the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the machine or element in question must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 5, the method for constructing the attached lifting scaffold in the embodiment of the invention comprises the steps of reinforcing the bottom mounting platform 1, temporarily reinforcing the original scaffold body 4, erecting and decomposing the new scaffold body 6 and dismantling the original scaffold body 4.
The top of the bottom floor type steel pipe scaffold is used as the mounting platform 1 of the original scaffold 4, when the original scaffold 4 enters the field, the original scaffold 4 mounted and arranged on the original scaffold is also subjected to scaffold unloading in time, but the load of the original scaffold 4 falling on the original scaffold still exists, so that the bottom floor type steel pipe scaffold needs to be reinforced in advance before a new scaffold 6 is erected.
Referring to fig. 1 and 2, for example, on a shear wall or a structural beam, a horizontal tie 2 is arranged at a position close to the top surface of a mounting platform 1 by using a steel pipe with a diameter of 48mm and a wall thickness of 3.5 and mm, the height of the horizontal tie 2 from the top surface of the mounting platform 1 is not more than 200mm, the span of two connected horizontal tie points is preferably arranged according to 3 meters, the special position is not more than 4.5 meters, and the horizontal tie is required to be arranged at each corner position, so that the stability of the mounting platform is ensured; for places where horizontal drawknots cannot be normally carried out, such as a balcony, a bay window and the like, the floor type steel pipe scaffold is reinforced in a mode of installing a throwing support 3 on the surface of the structure, so that the floor type steel pipe scaffold is ensured to have no dead angle around the reinforcement of a circle of building structure; after all reinforcements are finished, the reinforcement is strictly checked, so that each pull node is firmly connected, each pull node rod piece is in a stressed state, and the stress on the position connected with the structure is reasonable.
Referring to fig. 1 and 3, for example, on a shear wall or a structural beam, a horizontal tie 2 is arranged at a node position near a top scaffold board 41 and a vertical pole of an original frame body 4 of an attached lifting scaffold by using a steel pipe with a diameter of 48mm and a wall thickness of 3.5mm, the height of the horizontal tie 2 from the top scaffold board 41 is not more than 200mm, the span of two connected horizontal tie points is arranged according to 3 meters, the maximum special position is not more than 4.5 meters, and the corner positions are all required to be arranged, so that the stability of the installed frame body is ensured; for places where horizontal drawknots cannot be normally carried out, such as a balcony, a bay window and the like, the original frame body 4 is obliquely reinforced in a mode of installing the cast support 3 on the structural plate surface, and the diagonal draw bars of the cast support 3 are drawknots close to the positions where the vertical rods, the guide rails and the scaffold plates in the frame body are connected, so that the reinforcement of a circle of the frame body is ensured to be free of dead angles; after all reinforcements are done, the reinforcement is strictly checked, so that each pull node is firmly connected, each pull node rod piece is in a stressed state, and the stress on the position connected with the structure is reasonable.
Referring to fig. 1, 3 and 4, for example, in the position of the main frame and the opposite positions of the inner and outer rows of upright posts, a 50mmX timber 5 with a 100mm section is used, five timber 5 are overlapped in the vertical direction, each two timber 5 are reinforced into a whole by using an 80mm long common iron nail, a timber with a C-shaped notch with a 700mm length is cut and sawn, the notch is matched with the upright posts at the clamped position to determine, the timber is clamped between the auxiliary guide rail and the outer upright posts and the inner and outer rows of upright posts of the main frame, and the upright posts are clamped through the cut notch to prevent the timber from moving left and right; in order to prevent the battens from side turning when the battens are used and bear the load, the battens and the scaffold board surface are flatly attached by matching with a notch cut out by the end of the battens, iron wires are bound at the positions of the battens and the scaffold board transverse frames, two ends of each batten are bound together respectively, the direct and good transmission of the force born by the battens to the scaffold board frames is ensured, and finally the force is transmitted to the main frame; on the 2200 mm's outer pole setting that is higher than top layer scaffold board 41 outside former support body 4, pull up 10# iron wire respectively along former support body 4 outward flange in the position from top layer scaffold board 41 face, with 1.8 meters wide dense mesh safety net respectively in 600mm, 1200 mm's position ligature firm, in the position of flat scaffold board face, fold close mesh safety net tiling on 10 meters scaffold board's face, use the iron wire to tie close mesh net and scaffold board's inside and outside side frame firm every 1 meter in the horizontal direction, ensure to protect tightly in the construction, prevent the high altitude weight thing.
Referring to fig. 1 and 5, an exemplary inspection and modification installation platform 1 ensures that all wall-attached supports are firmly and reliably installed, all unloading jacking supports are in a stressed state, all rigid drawknots with structures are in positions, the installation platform surface is leveled and meets the condition that the internal and external height difference of the installation platform is not more than 5mm, the circumferential closing difference is not more than 10mm, abrupt height difference change of more than 10mm is strictly forbidden within the range of 1 meter of the same straight line section, a new frame body 6 is installed on an original frame body 4, the top layer of each four meters of the new frame body 6 uses steel pipes with the diameter of 48mm and the wall thickness of 3.5mm, one end of each new frame body 6 is connected with a steel pipe which is pre-buried in advance structurally, the other end of each new frame body is connected with a three-angle brace and a vertical rod, the new frame body 6 installed on the operation platform is fixed, and the new frame body 6 is prevented from toppling over until the required height or layer number is reached.
The new frame body 6 is lifted to at least two layers and then the original frame body 4 is removed, and the frame body at the end part of the tower crane and the climbing frame corner area is decomposed and removed according to the principle of firstly building and then dismantling because the weight of the tower crane is smaller, so that the lifting weight of the frame body is ensured to be less than 80% of the rated lifting weight.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (9)
1. The attached lifting scaffold high-altitude replacement construction method is characterized by comprising the following steps of:
1. a horizontal drawknot is arranged on a shear wall or a structural beam at a position close to the top surface of a floor type steel pipe scaffold serving as a mounting platform by using a steel pipe, a balcony and a bay window are reinforced by mounting a cast support on a structural plate surface, each drawknot point is ensured to be firmly connected, each drawknot rod piece is in a stressed state, and the stress at the position connected with the structure is reasonable;
2. a horizontal drawknot is arranged at a joint position, which is close to the connection between the top scaffold plate and the upright rod of the original frame body of the attached lifting scaffold, on a shear wall or a structural beam, and a balcony and a bay window are reinforced in a diagonal manner by installing a throwing support on a structural plate surface, so that each drawknot is firmly connected, each drawknot rod piece is in a stress state, and the stress at the position connected with the structure is reasonable;
3. wood Fang Dianping is used at the position of the main frame and the opposite positions of the inner and outer rows of upright posts;
4. a new frame body is arranged on the original frame body, one end of a top layer of the new frame body with four meters is connected with a steel pipe which is pre-buried in advance in the structure, and the other end is connected with a three-angle support and a vertical rod of the new frame body, so that the new frame body is fixed, the new frame body is prevented from toppling, and the process is repeated until the new frame body with the required height or layer number is achieved;
5. the new frame body is lifted by at least two layers and then the original frame body is removed.
2. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the first and second steps, the horizontal drawknot is a steel pipe with the diameter of 48mm and the wall thickness of 3.5 mm.
3. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the first step, the height of the horizontal drawknot from the top surface of the installation platform is not more than 200mm, and the span of two connected horizontally-oriented drawknots is set according to 3-4.5 meters.
4. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the second step, the height of the horizontal drawknot from the top scaffold board is not more than 200mm, and the span of two connected horizontally-oriented drawknots is set according to 3-4.5 m.
5. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the third step, the cross section of the batten is 50mmX100mm, five battens are overlapped in the vertical direction, 80mm iron nails are used for reinforcing the batten into a whole between every two battens, the batten with a C-shaped notch with the length of 700mm is cut and sawed into the batten, the notch is matched with the pole setting at the clamped position to determine, the batten is clamped between the auxiliary guide rail and the outer pole setting and the inner and outer pole setting of the main frame, the pole setting is clamped through the cut notch, and the lateral movement of the batten is prevented.
6. The attached lifting scaffold overhead replacement construction method according to claim 5, wherein: in the third step, iron wires are used for flatly pasting the battens and the scaffold board surfaces together with the notches cut by the ends of the battens.
7. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the third step, the outer edge of the original frame is higher than the outer upright posts of the top-layer scaffold board, iron wires are respectively pulled along the outer edges of the original frame at positions away from the surface of the top-layer scaffold board, the safety net is firmly bound at positions 600mm and 1200mm away from the scaffold board, the safety net is folded and paved on the surface of the 10-meter scaffold board at the position of the surface of the flat scaffold board, and the safety net and the inner side frame and the outer side frame of the scaffold board are firmly bound every 1 meter by using the iron wires in the horizontal direction.
8. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the fourth step, the steel pipe has a diameter of 48mm, a wall thickness of 3.5mm and a length of 6 m.
9. The attached lifting scaffold overhead replacement construction method according to claim 1, wherein: in the fifth step, the frame body is decomposed and removed according to the principle of firstly building and then removing aiming at the frame body at the end part of the tower crane and the climbing frame corner area, so that the lifting weight of the frame body is ensured to be less than 80% of the rated lifting weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913453.8A CN115217319B (en) | 2022-07-29 | 2022-07-29 | High-altitude replacement construction method for attached lifting scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913453.8A CN115217319B (en) | 2022-07-29 | 2022-07-29 | High-altitude replacement construction method for attached lifting scaffold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115217319A CN115217319A (en) | 2022-10-21 |
| CN115217319B true CN115217319B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210913453.8A Active CN115217319B (en) | 2022-07-29 | 2022-07-29 | High-altitude replacement construction method for attached lifting scaffold |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013217069A (en) * | 2012-04-06 | 2013-10-24 | Nippon Steel Topy Bridge Co Ltd | Suspended scaffold unit and erection method of scaffold |
| CN107090968A (en) * | 2017-04-17 | 2017-08-25 | 甘肃第六建设集团股份有限公司 | Integrated form attached lifting scaffold and its elevating method |
| CN109537866A (en) * | 2018-12-12 | 2019-03-29 | 北京千引力科技发展有限公司 | A kind of attachment type raise scaffold and its hanging method |
| CN114412158A (en) * | 2022-02-25 | 2022-04-29 | 安徽安鼎智能科技有限公司 | Aluminum alloy-steel combined attached lifting scaffold and mounting method thereof |
| CN114704068A (en) * | 2022-06-07 | 2022-07-05 | 中铁城建集团第一工程有限公司 | Attached lifting scaffold system |
-
2022
- 2022-07-29 CN CN202210913453.8A patent/CN115217319B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013217069A (en) * | 2012-04-06 | 2013-10-24 | Nippon Steel Topy Bridge Co Ltd | Suspended scaffold unit and erection method of scaffold |
| CN107090968A (en) * | 2017-04-17 | 2017-08-25 | 甘肃第六建设集团股份有限公司 | Integrated form attached lifting scaffold and its elevating method |
| CN109537866A (en) * | 2018-12-12 | 2019-03-29 | 北京千引力科技发展有限公司 | A kind of attachment type raise scaffold and its hanging method |
| CN114412158A (en) * | 2022-02-25 | 2022-04-29 | 安徽安鼎智能科技有限公司 | Aluminum alloy-steel combined attached lifting scaffold and mounting method thereof |
| CN114704068A (en) * | 2022-06-07 | 2022-07-05 | 中铁城建集团第一工程有限公司 | Attached lifting scaffold system |
Non-Patent Citations (1)
| Title |
|---|
| 附着式升降脚手架在建筑施工中的技术应用及安全管理;杜冬莉;绿色环保建材(第2019年11期期);128-129 * |
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