CN114182951A - External scaffold wall connecting piece tie method used in construction - Google Patents
External scaffold wall connecting piece tie method used in construction Download PDFInfo
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- CN114182951A CN114182951A CN202111528097.XA CN202111528097A CN114182951A CN 114182951 A CN114182951 A CN 114182951A CN 202111528097 A CN202111528097 A CN 202111528097A CN 114182951 A CN114182951 A CN 114182951A
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- connecting piece
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- main structure
- steel pipe
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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
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention discloses a method for pulling and tying an external scaffold wall connecting piece in construction, and belongs to the field of construction methods. The novel outer scaffold wall connecting piece is adopted in the pulling method, the wall connecting piece is embedded in a main concrete structure through a fixed rod with a bending section, and a straight rod section with an external thread section is used for connecting a connecting piece of a welded steel pipe. In the work progress, each needs drawknot position to outer scaffold frame, all with a pre-buried dead lever, can cup joint the steel-pipe fitting on the dead lever through connecting piece and internal thread spare, then pass through the fastener with steel-pipe fitting and outer scaffold frame and normally be connected, when the outrigger is demolishd, only need loosen the internal thread spare, with the unnecessary part of dead lever cut except alright, and connecting piece, internal thread spare and the equal reuse of steel-pipe fitting. The outer scaffold wall connecting piece can solve the problems that secondary structure construction is inconvenient, secondary plugging of a hole needs to be reserved, water seepage hidden danger exists and the like.
Description
Technical Field
The invention relates to a technology for building a connecting wall on an external scaffold in a building construction process, in particular to a device which is convenient to disassemble pull nodes of the external scaffold in the building construction process and is in rigid connection with the pull nodes.
Background
At present, the external scaffold wall connecting piece for building engineering construction mainly adopts the forms of embedding common steel pipes on a floor beam, connecting the embedded steel pipes with an external scaffold through fasteners and the like. However, in the traditional method, when the secondary structure is constructed, a hole needs to be reserved in the wall body, unnecessary troubles are caused to construction, the wall body is easy to remove, potential safety hazards exist, and the hidden water seepage hazards still exist on the beam after the pre-buried steel pipe is cut off. In the prior art, the galvanized flat steel is embedded in the main structure of the building, and the galvanized flat steel is connected with the wall connecting rod through the double-cross fastener. But this kind of mode is flexonics, can satisfy outer scaffold tensile effect, can't satisfy the resistance to compression, may lead to the unstable scheduling problem of support body.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, increase the overall safety of a scaffold and reduce the later quality hidden danger, provides a method for pulling an external scaffold wall connecting piece in construction, and effectively solves the problems that the construction of a secondary structure is inconvenient, a hole needs to be reserved for secondary plugging, the hidden danger of water seepage exists and the like.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a method for pulling and tying an external scaffold wall connecting piece in construction comprises the following steps:
s1, before pouring the main structure concrete, correspondingly arranging a fixed rod formed by vertically connecting a bending section and a straight rod section with an external thread section on each position of the external scaffold needing to be tied, wherein the bending section of the fixed rod is embedded into a reinforcement cage of the main structure and is connected with a main structure reinforcement, the straight rod section is positioned outside the pouring area of the main structure, and the external thread section on the straight rod section protrudes out of a side vertical face of the main structure needing to be erected with the external scaffold;
s2, after all the fixing rods at the positions needing to be tied on the main structure are installed, completing concrete pouring and maintenance according to the design construction organization sequence of the main structure;
s3, preparing a group of connecting pieces, internal thread pieces and steel pipe pieces in advance for each fixing rod at the position needing to be subjected to drawknot, wherein the connecting pieces are provided with through holes and are welded and fixed at one end of the steel pipe pieces;
s4, when the external scaffold is erected to each position needing to be tied, sleeving a connecting piece welded with a steel pipe in advance on the external thread section of the fixed rod through the through hole, wherein the connecting piece is close to the concrete structure surface of the main structure; screwing the corresponding internal thread piece into the external thread section until the connecting piece is pressed tightly, so that the connecting piece is supported against the concrete structure surface of the main structure under the limiting action of the internal thread piece; the other end of the steel pipe extends to a main node of the outer scaffold and is connected with a main node of the outer scaffold through a fastener.
Preferably, when the external scaffold is disassembled after construction is finished, the internal thread piece on each fixing rod is unscrewed, and then the steel pipe piece and the connecting piece are disassembled for reuse.
Further, after the construction is finished and the connecting piece, the internal thread piece and the steel pipe are disassembled, the part of the fixing rod, which exposes the main structure, is cut off.
Preferably, the main structure is a wall, a column or a beam of a building.
Preferably, the fixing rod is an L-shaped screw.
Preferably, the connecting member is a steel plate having a through hole.
Preferably, the aperture of the through hole is slightly larger than the diameter of the straight rod section of the fixing rod, so that the connecting piece can only slide along the axial direction of the straight rod section.
Preferably, the female screw member is a nut, and the size of the nut is larger than the size of the through hole in the connector.
Preferably, the length of the steel pipe fitting is greater than the span between the external scaffold wall connecting piece and the external scaffold main node.
Preferably, the steel pipe is horizontally erected.
The invention provides a method for pulling and connecting an external scaffold wall connecting piece in construction, wherein a novel external scaffold wall connecting piece is adopted in the method, the wall connecting piece is embedded in a main concrete structure through a fixed rod with a bending section, and a straight rod section with an external thread section is used for connecting a connecting piece of a welded steel pipe. In the work progress, each needs drawknot position to outer scaffold frame, all with a pre-buried dead lever, can cup joint the steel-pipe fitting on the dead lever through connecting piece and internal thread spare, then pass through the fastener with steel-pipe fitting and outer scaffold frame and normally be connected, when the outrigger is demolishd, only need loosen the internal thread spare, with the unnecessary part of dead lever cut except alright, and connecting piece, internal thread spare and the equal reuse of steel-pipe fitting. The outer scaffold wall connecting piece can solve the problems that secondary structure construction is inconvenient, secondary plugging of a hole needs to be reserved, water seepage hidden danger exists and the like, and the drawknot is in rigid connection, so that the potential safety hazard of construction can be avoided.
Drawings
Fig. 1 is a flow chart of a method for pulling and connecting an external scaffold wall connecting piece in construction.
Fig. 2 is a schematic view of the external scaffolding wall attachment means of the present invention.
Fig. 3 is an enlarged view of the connection position in fig. 2.
FIG. 4 is a sequence diagram of a construction organization according to the present invention.
Reference symbol correspondence relationship: fixed rod 1, connecting piece 2, internal thread piece 3 and steel pipe fitting 4
Detailed Description
The invention will be further elucidated and described with reference to the drawings and the detailed description. The technical features of the embodiments of the present invention can be combined correspondingly without mutual conflict.
In a preferred embodiment of the present invention, as shown in fig. 1, there is provided a method for tying an external scaffolding wall connecting member for use in construction. The method is characterized in that the detachable external scaffold wall connecting piece is adopted, and the external scaffold wall connecting piece can form a rigid connection structure between the main structure and the external scaffold, so that the erection and construction safety of the external scaffold is ensured.
As shown in fig. 2, the main structure of the external scaffolding wall connecting element comprises four parts, namely a fixing rod 1, a connecting element 2, an internal thread element 3 and a steel pipe 4. In order to better understand the specific implementation principle of the method for pulling and connecting the external scaffolding wall connecting piece according to the present invention, the following detailed description is made on the specific structure and connection form of each subassembly in the external scaffolding wall connecting piece. The function of dead lever 1 is pre-buried in the major structure thing, provides the drawknot position of outer scaffold frame outward. The fixed rod 1 is formed by connecting a vertical straight rod section and a bending section, and an external thread section is arranged on the straight rod section. It should be noted that, the straight rod section and the bent section may be either integrated or welded in sections, which is not limited in this respect. The effect of steel-pipe fitting 4 is used for carrying out the lock joint with the main node of outer scaffold frame fixedly, and the effect of connecting piece 2 is detachable connection steel-pipe fitting 4 and dead lever 1, wherein can realize fixing and dismantling in order to guarantee steel-pipe fitting 4, still need introduce interior screw thread spare 3 and carry on spacingly.
As shown in fig. 3, the connector 2 is provided with a through hole and a blank region as a welding region for welding the end of the steel pipe 4. The connecting piece 2 is sleeved on the external thread section of the straight rod section through a through hole arranged at the upper part. The internal thread piece 3 can be screwed into the external thread section and is closely attached to the connecting piece 2 sleeved on the same external thread section to form unilateral limit to the connecting piece 2. In order to ensure the limiting effect, the size of the internal thread member 3 should be larger than the size of the through hole formed on the connecting member 2. In addition, the other surface of the connector 2 needs to be supported to form another limit position on the main structure, except for the surface welded to the steel pipe 4. Since one end of the steel pipe 4 is welded and fixed to the welding region of the connector 2, the steel pipe 4 can be rigidly fixed to the main structure under the double-side restriction of the female screw 3 and the main structure to the connector 2. The other end of the steel pipe fitting 4 extends and overhangs in the direction far away from the fixing rod 1 and is used for connecting and fixing a main node of an external scaffold. When in actual use, can be in advance steel pipe fitting 4 and connecting piece 2 through welding be even as an organic whole, directly overlap connecting piece 2 on pre-buried dead lever 1 during the installation, rethread internal thread spare 3 with connecting piece 2 compress tightly on dead lever 1 can.
Based on the external scaffold wall connecting piece, the following description is provided with reference to fig. 1 for specific implementation steps of the external scaffold wall connecting piece tie method used in construction, and the implementation steps are as follows:
s1, before the main structure concrete is poured, aiming at each position of the external scaffold which needs to be tied, a fixing rod 1 formed by vertically connecting a bending section and a straight rod section with an external thread section is correspondingly arranged on the main structure. Moreover, the bending section of the fixing rod 1 needs to be embedded into a reinforcement cage of the main structure and connected with the main structure reinforcement before concrete pouring, and the straight rod section is subsequently used for being matched with the connecting piece 2, so that the straight rod section needs to be located outside a pouring area of the main structure. Furthermore, in order to ensure that the connecting member 2 can be supported on the side surface of the main structure, the external thread section on the straight rod section needs to be kept protruding from one side elevation of the main structure, on which the external scaffold needs to be erected.
And S2, after all the fixing rods 1 at the positions needing to be tied on the main structure are installed, completing concrete pouring and maintenance according to the design construction organization sequence of the main structure.
In the invention, the main structure for embedding the fixing piece can be a wall, a column, a beam or other main structures, and specifically, one or more main structures can be used according to actual needs. The design and construction organization of the main structure is determined according to the related construction organization scheme and the specification requirements, and the concrete pouring and maintenance are only a part of the design and construction organization scheme. It should be noted that the two construction steps S1 and S2 can be flexibly organized. For the condition that the external scaffold wall connecting pieces need to be arranged on a plurality of main body structures, concrete pouring can be carried out according to the construction organization sequence as long as all fixing rods 1 needing to be installed in each main body structure are pre-buried, and pouring is not needed to be carried out together with other main body structures.
And S3, preparing a group of connecting pieces 2, internal thread pieces 3 and steel pipes 4 in advance for each fixing rod 1 at the position needing to be subjected to drawknot, wherein the connecting pieces 2 are provided with through holes in advance, and the connecting pieces 2 and one ends of the steel pipes 4 also need to be welded in advance.
Note that the step S3 does not necessarily have to be performed after the step S2, and may be performed before or simultaneously with the step S2.
S4, when the external scaffold is erected to each position needing to be tied, sleeving the connecting piece 2 welded with the steel pipe 4 in advance on the external thread section of the fixed rod 1 through the through hole, and enabling the connecting piece 2 to be close to the concrete structure surface of the main structure. And screwing the corresponding internal thread member 3 into the external thread section until the connecting member 2 is pressed tightly, so that the connecting member 2 is supported against the concrete structure surface of the main structure under the limiting action of the internal thread member 3, and the steel pipe member 4 is rigidly fixed on the main structure under the limiting action of the internal thread member 3 and the main structure on both sides of the connecting member 2. The other end of steel pipe fitting 4 outwards extends to the main node department of outer scaffold, from this according to traditional way through the fastener with outer scaffold owner node connection can realize the fixed drawknot of outer scaffold owner node. And the drawknot is a rigid drawknot and meets the requirements of tensile strength and compression resistance.
And when the outer scaffold is disassembled after the construction is finished, the internal thread pieces 3 on each fixing rod 1 are unscrewed, and then the steel pipe pieces 4 and the connecting pieces 2 are disassembled for repeated use. After the construction is finished and the connecting piece 2, the internal thread piece 3 and the steel pipe fitting 4 are disassembled, the part of the fixing rod 1, which exposes the main structure, is directly cut off, and then the subsequent surface treatment can be carried out on the main structure.
The above-described tie method of S1 to S4 can be performed for each wall connecting tie node in an actual construction organization one by one. As shown in fig. 4, the materials required by a plurality of external scaffolding wall connecting pieces are firstly purchased and transported to a construction site, and the specific quantity is determined according to the required pulling node. Then, a group of wall connecting piece devices are taken for installation according to the position of the first wall connecting pull node, and a group of wall connecting piece devices are taken for installation according to the positions of other wall connecting pull nodes in sequence. And finally, when the outer scaffold is disassembled after the construction is finished, loosening the nut on each L-shaped screw rod, further disassembling each pulling piece comprising the nut, the steel pipe piece and the connecting piece for repeated use in the next construction, and cutting off the part of the L-shaped screw rod exposed out of the main structure to continue other necessary constructions on the main structure.
In addition, the specific size parameters and the materials of the fixing rod 1, the connecting piece 2, the internal thread piece 3 and the steel pipe piece 4 in each external scaffold wall connecting piece can be selected according to actual requirements. In a preferred form of this embodiment, the fixing rod 1 is an L-shaped screw, the connecting member 2 is a steel plate with an opening, and the internally threaded member 3 is a nut with an internal thread. The L-shaped screw, the steel plate and the nut all belong to common standard parts in construction, and special processing is not needed, so that the acquisition and processing cost of raw materials can be reduced. In addition, the thread parameters of the external thread section on the straight rod section of the L-shaped screw need to be matched with the nut so that the two can form thread matching. The width of the steel plate should be larger than the diameter of the welded steel pipe 4, and the length should be enough to allow a space for opening a through hole. The nut is screwed on the external thread section of the L-shaped screw and tightly presses the back of the steel plate, and the size of the nut is larger than the through hole formed in the waist of the steel plate. Through the rotation of the nut on the external thread section, the distance between the bending sections of the steel plate and the L-shaped screw rod can be adjusted, and then the steel pipe fitting 4 is fixed on the connecting piece 3.
In addition, in the connecting element 2, the aperture of the through hole should preferably be slightly larger than the diameter of the straight rod section of the fixing rod 1, that is, the connecting element 2 and the fixing rod 1 form a clearance fit, so that the connecting element 2 can only slide along the axial direction of the straight rod section and can not move along the radial direction, thereby improving the stability of connection and fixation between the two.
The length of the steel pipe 4 is determined according to the actual distance between the scaffold and the main structure, and since the steel pipe 4 is generally horizontally erected, the length of the steel pipe 4 should be longer than the span between the external scaffold wall coupling and the external scaffold main node. Of course, in practical applications, the steel pipe 4 may not be horizontal, and may also have a certain inclination angle, which is not limited.
In addition, the fixing rod 1 in the above embodiment is an L-shaped screw for convenience of material drawing, but actually, the invention is not limited to the L-shaped screw, and the object of the invention can be achieved as long as the fixing rod 1 is formed by connecting a straight rod section and a bent section, and the straight rod section is provided with an external thread section.
In addition, the connecting piece 2 is made of steel plates, so that convenience in material drawing is also considered, but actually, the connecting piece is not limited to be made of iron sheets, and the purpose of the invention can be achieved as long as the main body of the connecting piece 2 is provided with a through hole, the steel pipe welding can be met, and the rigidity can meet the requirement.
In addition, although the nut is used as the female screw member 3 in the above embodiment, the nut is not necessarily limited to be used as long as it has a female screw hole.
In general, the steel pipe 4 is horizontally erected, and therefore the length of the steel pipe 4 should satisfy the horizontal span of the wall connecting member and the outer frame tension node. Of course, in practical applications, the steel pipe 4 may not be horizontal, and may also have a certain inclination angle, which is not limited.
The above-described embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the invention. Various changes and modifications may be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, the technical scheme obtained by adopting the mode of equivalent replacement or equivalent transformation is within the protection scope of the invention.
Claims (10)
1. A method for pulling and tying an external scaffold wall connecting piece in construction is characterized by comprising the following steps:
s1, before pouring the main structure concrete, correspondingly arranging a fixed rod (1) formed by vertically connecting a bending section and a straight rod section with an external thread section on the main structure respectively aiming at each position of the external scaffold needing to be tied, wherein the bending section of the fixed rod (1) is embedded into a reinforcement cage of the main structure and is connected with a main structure reinforcement, the straight rod section is positioned outside the pouring area of the main structure, and the external thread section on the straight rod section protrudes out of a side vertical face of the main structure needing to be erected with the external scaffold;
s2, after all the fixing rods (1) at the positions needing to be tied on the main structure are installed, completing concrete pouring and maintenance according to the design construction organization sequence of the main structure;
s3, preparing a group of connecting pieces (2), internal thread pieces (3) and steel pipe pieces (4) in advance for each fixing rod (1) at the position needing to be subjected to drawknot, wherein the connecting pieces (2) are provided with through holes and are welded and fixed at one end of each steel pipe piece (4);
s4, when the external scaffold is erected to each position needing to be tied, sleeving the connecting piece (2) welded with the steel pipe (4) in advance on the external thread section of the fixing rod (1) through the through hole, and enabling the connecting piece (2) to be close to the concrete structure surface of the main structure; screwing the corresponding internal thread piece (3) into the external thread section until the connecting piece (2) is pressed tightly, so that the connecting piece (2) is supported against the concrete structure surface of the main structure under the limiting action of the internal thread piece (3); the other end of the steel pipe fitting (4) extends to a main node of the outer scaffold and is connected with a main node of the outer scaffold through a fastener.
2. The method for pulling and tying the wall connecting piece of the external scaffold in construction as claimed in claim 1, wherein when the external scaffold is disassembled after the construction is finished, the internal thread piece (3) on each fixing rod (1) is unscrewed, and the steel pipe (4) and the connecting piece (2) are further disassembled for reuse.
3. The method for pulling and tying the external scaffolding wall connecting element used in construction as claimed in claim 2, wherein after the construction is completed and the connection member (2), the female screw member (3) and the steel pipe member (4) are removed, a portion of the fixing rod (1) where the main structure is exposed is cut off.
4. The method for bracing an external scaffolding wall element for use in construction as claimed in claim 1 wherein the host structure is a wall, column or beam of a building.
5. The method for drawknot of external scaffolding wall connecting elements used in construction as claimed in claim 1 wherein, the fixing rod (1) is an L-shaped screw.
6. The method for pulling and connecting the external scaffolding wall connecting piece used in construction as set forth in claim 1, wherein the connecting piece (2) is a steel plate having a through hole opened therein.
7. The method for pulling and tying the wall connecting piece of the external scaffold in construction as claimed in claim 1, wherein the aperture of the through hole is slightly larger than the diameter of the straight rod section of the fixing rod (1), so that the connecting piece (2) can only slide along the axial direction of the straight rod section.
8. The method for pulling and tying the external scaffolding wall-connecting element used in construction as set forth in claim 1, wherein the female screw member (3) is a nut, and the size of the nut is larger than the size of the through hole of the connecting member (2).
9. The method for drawknot of external scaffolding wall connecting pieces in construction as claimed in claim 1, characterized in that the length of the steel pipe pieces (4) should be larger than the span between the external scaffolding wall connecting pieces and the external scaffolding main node.
10. The method for drawknot of external scaffolding wall elements used in construction as claimed in claim 1, characterized in that the steel pipe elements (4) are kept horizontally erected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528097.XA CN114182951A (en) | 2021-12-14 | 2021-12-14 | External scaffold wall connecting piece tie method used in construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528097.XA CN114182951A (en) | 2021-12-14 | 2021-12-14 | External scaffold wall connecting piece tie method used in construction |
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| CN114182951A true CN114182951A (en) | 2022-03-15 |
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| CN202111528097.XA Pending CN114182951A (en) | 2021-12-14 | 2021-12-14 | External scaffold wall connecting piece tie method used in construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052110A (en) * | 2022-05-07 | 2023-11-14 | 中建二局第一建筑工程有限公司 | Wall connecting assembly and installation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203905441U (en) * | 2014-03-18 | 2014-10-29 | 苏州第五建筑集团有限公司 | Wall attaching tying part for scaffold |
| CN208604909U (en) * | 2018-07-04 | 2019-03-15 | 中科建工集团有限公司 | A kind of exterior wall scaffold drawknot device |
| CN211037781U (en) * | 2019-07-22 | 2020-07-17 | 上海绿地建设(集团)有限公司 | Outer wall fastener type scaffold wall connecting piece |
-
2021
- 2021-12-14 CN CN202111528097.XA patent/CN114182951A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203905441U (en) * | 2014-03-18 | 2014-10-29 | 苏州第五建筑集团有限公司 | Wall attaching tying part for scaffold |
| CN208604909U (en) * | 2018-07-04 | 2019-03-15 | 中科建工集团有限公司 | A kind of exterior wall scaffold drawknot device |
| CN211037781U (en) * | 2019-07-22 | 2020-07-17 | 上海绿地建设(集团)有限公司 | Outer wall fastener type scaffold wall connecting piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052110A (en) * | 2022-05-07 | 2023-11-14 | 中建二局第一建筑工程有限公司 | Wall connecting assembly and installation method thereof |
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