CN111946042A - Method for building external scaffold of concrete cantilever structure and external scaffold device - Google Patents
Method for building external scaffold of concrete cantilever structure and external scaffold device Download PDFInfo
- Publication number
- CN111946042A CN111946042A CN202010863899.5A CN202010863899A CN111946042A CN 111946042 A CN111946042 A CN 111946042A CN 202010863899 A CN202010863899 A CN 202010863899A CN 111946042 A CN111946042 A CN 111946042A
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- China
- Prior art keywords
- scaffold
- external
- concrete cantilever
- wall
- lateral movement
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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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/18—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings
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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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/007—Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
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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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
Abstract
The invention discloses a method and a device for erecting an external scaffold of a concrete cantilever structure, wherein the method for erecting the external scaffold of the concrete cantilever structure comprises the following steps: embedding a lateral movement prevention positioning piece in the concrete cantilever member; erecting an external scaffold on the top surface of the concrete cantilever member, and connecting the external scaffold and the lateral movement prevention positioning piece; and the outer scaffold and the building outer wall are tied by utilizing the wall connecting rod piece. Therefore, the arrangement of the side-shift-preventing positioning piece and the wall connecting rod piece ensures the safety of the external scaffold; the outer scaffold is erected on the top surface of the concrete cantilever member, so that the complex construction method that a hole sleeve is reserved, hardened fertilizer tank earthwork is backfilled or an overhanging I-steel outer scaffold is selected in the prior art is avoided, the construction method is similar to that of a landing outer scaffold, the erection is simple, the construction time is effectively shortened, and the construction cost is reduced.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for erecting an external scaffold of a concrete cantilever structure. In addition, the invention also relates to an external scaffold device for the external scaffold erection method of the concrete cantilever structure scaffold.
Background
At present, a large number of public building projects adopt glass curtain wall construction, and the glass curtain wall protection work is further strengthened according to the stipulations of Notification of the glass curtain wall protection work (Ministry of urban and rural construction of housing, State safety supervision general office, building Standard [2015] 38): the glass curtain wall is arranged on two or more layers, a green belt or a buffer area such as a skirt room is reasonably arranged in the peripheral area below the curtain wall, and protective facilities such as cornices, impact-proof rain awnings and the like can also be adopted. Therefore, in order to reduce the potential safety hazard of the glass curtain wall, the buildings related to the commercial center, the public cultural and sports facilities and the like adopt cantilever structures in large quantity.
In the prior art, for a building with an overhanging structure, when an external scaffold is built, a hole sleeve needs to be reserved on an overhanging component when the overhanging structure is encountered, and soil of a fertilizer tank needs to be backfilled and hardened when an underground structure exists, so that the external scaffold can penetrate through the overhanging structure; or selecting an overhanging I-steel external scaffold, and arranging I-steel at the overhanging component. The two construction modes have the advantages of multiple working procedures, long construction period, large occupied material and high erection cost.
In summary, how to reduce the erection cost and the construction period of the external scaffold of the cantilever structure is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the invention aims to provide a method for erecting an external scaffold of a concrete cantilever structure, which realizes the erection of the external scaffold on the top surface of the concrete cantilever structure, is simple in construction on the premise of ensuring the safety, and greatly reduces the construction time and the construction cost.
In addition, the invention also provides an external scaffold device for the method for erecting the external scaffold of the concrete cantilever structure.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for building an external scaffold of a concrete cantilever structure comprises the following steps:
embedding a lateral movement prevention positioning piece in the concrete cantilever member;
erecting an external scaffold on the top surface of the concrete cantilever member, and connecting the external scaffold and the lateral movement prevention positioning piece;
and the outer scaffold and the building outer wall are tied by utilizing the wall connecting rod piece.
Preferably, the pre-buried anti-lateral movement locating piece in the concrete cantilever member comprises:
determining the installation position of the lateral movement prevention positioning piece according to the size of the external scaffold;
and embedding the anti-side-shifting positioning piece at the mounting position.
Preferably, the lateral movement preventing positioning member comprises a lateral movement preventing positioning steel bar.
Preferably, the external scaffold and the lateral movement prevention positioning member are connected by:
the outer vertical rod of the outer scaffold is sleeved outside the lateral movement preventing positioning steel bar.
Preferably, the method for using the wall connecting rod to tie the external scaffold and the external wall of the building comprises the following steps:
the wall connecting rod pieces are uniformly arranged in the height direction of the outer scaffold.
The utility model provides an outer scaffold device, is including preventing that side shift setting element, outer scaffold frame and being used for the drawknot outer scaffold frame and building outer wall's wall connecting rod spare, prevent that side shift setting element is pre-buried in the concrete cantilever member, the top surface that the concrete cantilever member was equipped with outer scaffold frame, outer scaffold frame with prevent that side shift setting element connects.
Preferably, the outer scaffold comprises at least two vertical rods and a horizontal rod vertically connected with the vertical rods, and the bottom end of at least one vertical rod is provided with a mounting hole for connecting with the lateral movement prevention positioning piece.
The invention provides a method for erecting an external scaffold of a concrete cantilever structure, which comprises the following steps:
embedding a lateral movement prevention positioning piece in the concrete cantilever member;
erecting an external scaffold on the top surface of the concrete cantilever member, and connecting the external scaffold and the lateral movement prevention positioning piece;
and the outer scaffold and the building outer wall are tied by utilizing the wall connecting rod piece.
When the concrete cantilever member is installed, an external scaffold is erected on the top surface of the concrete cantilever member, and the external scaffold and the pre-embedded lateral movement prevention positioning piece are connected to prevent the external scaffold from laterally moving outwards relative to the building outer wall; in the erection process of the outer scaffold, the outer scaffold and the building outer wall are tied by utilizing the wall connecting rod piece, so that a pulling force pointing to one side of the building outer wall is provided for the outer scaffold, and the outer scaffold is further prevented from moving laterally relative to the building outer wall.
Therefore, the arrangement of the side-shift-preventing positioning piece and the wall connecting rod piece ensures the safety of the external scaffold; the outer scaffold is erected on the top surface of the concrete cantilever member, so that the complex construction method that a hole sleeve is reserved, hardened fertilizer tank earthwork is backfilled or an overhanging I-steel outer scaffold is selected in the prior art is avoided, the construction method is similar to that of a landing outer scaffold, the erection is simple, the construction time is effectively shortened, and the construction cost is reduced.
In addition, the invention also provides an external scaffold device for the method for erecting the external scaffold of the concrete cantilever structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flow chart of an embodiment of a method for setting up an external scaffold of a concrete cantilever structure according to the present invention;
fig. 2 is a schematic structural view of the external scaffolding provided by the present invention when assembled;
fig. 3 is a partially enlarged view of the area a in fig. 2.
In fig. 1-3:
1 is concrete cantilever member, 11 is preventing the spacer bar that moves sideways, 2 is outer scaffold, 3 is wall connecting rod spare, 4 is the building outer wall.
Detailed Description
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.
The core of the invention is to provide a method for erecting an external scaffold of a concrete cantilever structure, which realizes the erection of the external scaffold on the top surface of the concrete cantilever structure, is simple to construct on the premise of ensuring the safety and greatly reduces the construction time and the construction cost.
The invention also provides an external scaffold device for the method for erecting the external scaffold of the concrete cantilever structure.
Referring to fig. 1 to 3, fig. 1 is a schematic flow chart illustrating an embodiment of a method for setting up an external scaffold of a concrete cantilever structure according to the present invention; fig. 2 is a schematic structural view of the external scaffolding provided by the present invention when assembled; fig. 3 is a partially enlarged view of the area a in fig. 2.
The invention provides a method for erecting an external scaffold of a concrete cantilever structure, which comprises the following steps:
step S1, pre-burying a lateral movement prevention positioning piece in the concrete cantilever member 1;
step S2, erecting an external scaffold 2 on the top surface of the concrete cantilever member 1, and connecting the external scaffold 2 with a lateral movement prevention positioning piece;
and step S3, the outer scaffold 2 and the building outer wall 4 are pulled and connected by the wall connecting rod piece 3.
It should be noted that in step S1, before the lateral movement preventing positioning construction is embedded in the concrete cantilever member 1, the bearing capacity of the concrete cantilever member 1 needs to be checked according to the step pitch, the erection height, and the like of the external scaffold 2, and if it is checked that the concrete cantilever member 1 cannot support the external scaffold 2, the structure of the concrete cantilever member 1 should be redesigned according to the selected safety factor to ensure the bearing capacity of the concrete cantilever member 1.
Preferably, step S1 may include:
step S11, determining the installation position of the lateral movement prevention positioning member according to the size of the external scaffold 2;
and step S12, embedding the anti-lateral movement positioning piece at the installation position.
It should be noted that in step S11, a side shift preventing positioning member is provided on the outer upright side of the outer scaffold 2 for preventing the outer upright from shifting outward relative to the building on the top surface of the concrete cantilever member 1. The installation position of the side shift prevention positioning piece is determined according to the width of the outer scaffold 2, the distance between the inner vertical rod of the outer scaffold 2 and the building outer wall 4 and the like.
Preferably, the lateral movement preventing spacer may be a lateral movement preventing spacer 11, and the lateral movement preventing spacer 11 is perpendicular to the top surface of the concrete cantilever member 1.
It should be noted that in step S2, it is preferable that the outer vertical rod of the outer scaffold 2 is sleeved outside the lateral movement preventing positioning bar 11, so that when the outer scaffold 2 tends to move laterally outward, the lateral movement preventing positioning bar 11 applies a force to the outer vertical rod in a direction toward the building outer wall 4 to prevent the lateral movement of the outer vertical rod.
It should be noted that, in step S3, it is preferable that the wall connecting members 3 are uniformly arranged in the height direction of the outer scaffolding 2, and the distance between two adjacent wall connecting members 3 is determined according to the step distance of the outer scaffolding 2. In the erection process, the outer scaffold 2 and the building outer wall 4 are tied up along with the erection progress of the outer scaffold 2.
The wall connecting rod piece 3 can be a steel bar embedded in the building outer wall 4, and can also be connected with the outer wall surface of the building outer wall 4 in a bolt connection mode and the like; between even wall rod 3 and the outer scaffolding 2, can be the welding, can connect through steel pipe fastener, also can connect through other connected modes certainly. The concrete connection mode between the wall connecting rod 3 and the building outer wall 4 and the concrete connection mode between the wall connecting rod 3 and the outer scaffold 2 are determined according to the actual production needs by referring to the prior art, and are not described herein again.
Because the wall connecting rod piece 3 provides tension for the outer scaffold 2, the size of the wall connecting rod piece 3 needs to be calculated and determined according to the size of the outer scaffold 2 so as to ensure the tensile strength of the wall connecting rod piece 3.
During installation, an external scaffold 2 is erected on the top surface of the concrete cantilever member 1, and the external scaffold 2 and the pre-embedded lateral movement prevention positioning piece are connected to prevent the external scaffold 2 from laterally moving outwards relative to the building outer wall 4; in the erection process of the outer scaffold 2, the outer scaffold 2 and the building outer wall 4 are tied by the wall connecting rod piece 3, so that a pulling force pointing to one side of the building outer wall 4 is provided for the outer scaffold 2, and the outer scaffold 2 is further prevented from moving relative to the building outer wall 4.
Therefore, the arrangement of the anti-lateral movement positioning piece and the wall connecting rod piece 3 in the embodiment ensures the safety of the external scaffold 2; the outer scaffold 2 is erected on the top surface of the concrete cantilever member 1, so that a complicated construction method of reserving hole sleeves, backfilling hardened fertilizer groove earthwork or selecting a cantilever I-steel outer scaffold in the prior art is avoided, the construction method is similar to that of a ground-falling outer scaffold, the erection is simple, the construction time is effectively shortened, and the construction cost is reduced.
In addition to the method for erecting the external scaffold of the concrete cantilever structure, the invention also provides an external scaffold device for the method for erecting the external scaffold of the concrete cantilever structure disclosed in the embodiment, the external scaffold device comprises a lateral movement prevention positioning piece, an external scaffold 2 and a wall connecting rod piece 3 for pulling and connecting the external scaffold 2 and a building external wall 4, the lateral movement prevention positioning piece is pre-embedded in the concrete cantilever member 1, the external scaffold 2 is arranged on the top surface of the concrete cantilever member 1, and the external scaffold 2 is connected with the lateral movement prevention positioning piece. Through setting up prevent that side shift setting element and wall connecting rod spare 3, provide the pulling force of directional building outer wall 4 for external scaffolding 2, avoided external scaffolding 2 side to move.
Preferably, the external scaffolding 2 may comprise at least two uprights and a horizontal bar vertically connected to the uprights, and the bottom end of at least one upright is provided with a mounting hole for connection with the anti-lateral-movement positioning member. Please refer to the prior art for a specific connection manner between the vertical rod and the horizontal rod, which is not described herein.
Preferably, the vertical rod and the horizontal rod are steel pipes, so that the connecting strength is high, and the processing and the manufacturing are convenient.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The method for setting up the external scaffold of the concrete cantilever structure and the external scaffold device provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A method for erecting an external scaffold of a concrete cantilever structure is characterized by comprising the following steps:
embedding a lateral movement prevention positioning piece in the concrete cantilever member (1);
erecting an external scaffold (2) on the top surface of the concrete cantilever member (1), and connecting the external scaffold (2) with the lateral movement prevention positioning piece;
and the outer scaffold (2) and the building outer wall (4) are tied by using the wall connecting rod piece (3).
2. The method for erecting the external scaffold of the concrete cantilever structure according to claim 1, wherein the pre-embedding of the lateral movement prevention positioning piece in the concrete cantilever member (1) comprises the following steps:
determining the installation position of the lateral movement prevention positioning piece according to the size of the external scaffold (2);
and embedding the anti-side-shifting positioning piece at the mounting position.
3. The method for erecting an external scaffold for a concrete cantilever structure according to claim 1, wherein the side-shift preventing spacer comprises a side-shift preventing spacer bar (11).
4. The method for erecting an external scaffold for a concrete cantilever structure according to claim 3, wherein the connecting the external scaffold (2) with the lateral movement prevention positioning member comprises:
the outer vertical rod of the outer scaffold (2) is sleeved outside the lateral movement preventing positioning steel bar (11).
5. The method for erecting an external scaffolding of a concrete cantilever structure according to any one of claims 1 to 4, wherein the pulling the external scaffolding (2) with the building external wall (4) by the wall connecting bar (3) comprises:
the wall connecting rod pieces (3) are uniformly arranged in the height direction of the outer scaffold (2).
6. The utility model provides an outer scaffold device, its characterized in that, including prevent that side moves setting element, outer scaffold (2) and be used for the drawknot outer scaffold (2) and building outer wall (4) link wall pole piece (3), prevent that side moves the setting element and pre-buries in concrete cantilever member (1), the top surface of concrete cantilever member (1) is equipped with outer scaffold (2), outer scaffold (2) with prevent that side moves the setting element and connect.
7. External scaffolding arrangement according to claim 6, characterized in that the external scaffolding (2) comprises at least two uprights and horizontal bars perpendicularly connected to the uprights, the bottom end of at least one of the uprights being provided with mounting holes for connection with anti-sideway locating elements.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863899.5A CN111946042A (en) | 2020-08-25 | 2020-08-25 | Method for building external scaffold of concrete cantilever structure and external scaffold device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010863899.5A CN111946042A (en) | 2020-08-25 | 2020-08-25 | Method for building external scaffold of concrete cantilever structure and external scaffold device |
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| CN111946042A true CN111946042A (en) | 2020-11-17 |
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| CN202010863899.5A Pending CN111946042A (en) | 2020-08-25 | 2020-08-25 | Method for building external scaffold of concrete cantilever structure and external scaffold device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756554A (en) * | 2021-10-11 | 2021-12-07 | 昆明玺唤科技有限公司 | Construction platform and construction method for cast-in-place reinforced concrete support cantilever scaffold |
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| AU2016208324A1 (en) * | 2008-09-09 | 2016-08-11 | Chris Ayoub | Scaffolding System |
| CN206053274U (en) * | 2016-08-31 | 2017-03-29 | 广东省建筑构件工程有限公司 | The external scaffolding device of the perpendicular BAIYE outer visor of skyscraper and glass curtain wall dual-purpose |
| CN109629821A (en) * | 2017-10-09 | 2019-04-16 | 上海宝冶集团有限公司 | The support construction of concrete overhanging component top scaffold outlet steel pipe |
| CN109779225A (en) * | 2019-03-13 | 2019-05-21 | 中国十七冶集团有限公司 | A kind of change overhanging type external scaffold and construction method |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0522918D0 (en) * | 2003-06-30 | 2005-12-21 | Rope Access Building Services | Improvements in scaffolding brackets |
| AU2016208324A1 (en) * | 2008-09-09 | 2016-08-11 | Chris Ayoub | Scaffolding System |
| CN202214968U (en) * | 2011-08-15 | 2012-05-09 | 成都市第六建筑工程公司 | Overhanging scaffold erection structure |
| CN206053274U (en) * | 2016-08-31 | 2017-03-29 | 广东省建筑构件工程有限公司 | The external scaffolding device of the perpendicular BAIYE outer visor of skyscraper and glass curtain wall dual-purpose |
| CN109629821A (en) * | 2017-10-09 | 2019-04-16 | 上海宝冶集团有限公司 | The support construction of concrete overhanging component top scaffold outlet steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113756554A (en) * | 2021-10-11 | 2021-12-07 | 昆明玺唤科技有限公司 | Construction platform and construction method for cast-in-place reinforced concrete support cantilever scaffold |
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Application publication date: 20201117 |