CN113700035A - Single-side formwork support system and construction method thereof - Google Patents
Single-side formwork support system and construction method thereof Download PDFInfo
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- CN113700035A CN113700035A CN202110795434.5A CN202110795434A CN113700035A CN 113700035 A CN113700035 A CN 113700035A CN 202110795434 A CN202110795434 A CN 202110795434A CN 113700035 A CN113700035 A CN 113700035A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention provides a single-side formwork support system, which comprises a support frame, a support frame and a support frame, wherein the support frame is provided with a support frame; the single-side formwork comprises a formwork and two triangular trusses; the two triangular trusses are arranged at intervals along the length direction of the template; the template is attached to the side wall steel bars and connected with the triangular truss through hook bolts; foundation bolts which are in one-to-one correspondence with the triangular trusses are arranged on one side, close to the side wall steel bars, of the bottom plate, one ends of the foundation bolts are inserted into the bottom plate, the other ends of the foundation bolts are connected with hooks of the hook bolts in a hanging mode, and the other ends of the hook bolts are fixed with the triangular trusses; the position of a lower cross beam of the triangular truss is fixed through an adjusting support; a plurality of first welded steel pipes are arranged on the diagonal rods of the triangular truss at intervals, and a second welded steel pipe is arranged on the cross beam of the triangular truss; and the first welded steel pipe and the second welded steel pipe corresponding to different triangular trusses are respectively connected into a whole through the transverse steel pipe. The invention also provides a construction method of the single-side formwork support system.
Description
Technical Field
The invention relates to a construction method, in particular to a construction method of a single-side formwork support system.
Background
As the urban economy in all parts of the country is rapidly developed, the road traffic capacity requirement is greatly improved, the existing road needs to be improved urgently, and a municipal tunnel structure is not used as a main driving channel. Because both sides of the road are influenced by buildings, the open cut foundation pit is usually supported vertically, so that a bilateral formwork cannot be adopted in the construction of the structural side wall, and a unilateral formwork must be adopted. The traditional single-side formwork erecting process adopts steel pipes to erect bent frames as a formwork supporting system, the process uses large quantity of steel pipes, long erecting period, low formwork erecting height at one time, and is easy to have the defects of upward floating of the formwork, formwork expansion, poor flatness of a concrete wall surface, poor verticality and the like.
Disclosure of Invention
The invention aims to solve the main technical problem of providing a unilateral formwork support system and a construction method thereof. The appearance quality of the wall concrete is improved by the integrity of the template.
In order to solve the above technical problem, the present invention provides a single-sided formwork support system, comprising; the single-side formwork comprises a formwork and two triangular trusses; the two triangular trusses are arranged at intervals along the length direction of the template;
the template is attached to the side wall steel bars and connected with the triangular truss through hook bolts; foundation bolts which are in one-to-one correspondence with the triangular trusses are arranged on one side, close to the side wall steel bars, of the bottom plate, one ends of the foundation bolts are inserted into the bottom plate, the other ends of the foundation bolts are connected with hooks of the hook bolts in a hanging mode, and the other ends of the hook bolts are fixed with the triangular trusses;
the position of a lower cross beam of the triangular truss is fixed through an adjusting support; a plurality of first welded steel pipes are arranged on the diagonal rods of the triangular truss at intervals, and a second welded steel pipe is arranged on the cross beam of the triangular truss; and the first welded steel pipe and the second welded steel pipe corresponding to different triangular trusses are respectively connected into a whole through the transverse steel pipe.
In a preferred embodiment: the triangular truss is provided with an operating platform above the uppermost cross beam.
In a preferred embodiment: and two adjacent cross beams of the triangular truss are connected through an inclined support rod.
In a preferred embodiment: and an included angle of 45 degrees is formed between the foundation bolt and the bottom plate.
The invention also provides a construction method of the single-side formwork support system, which comprises the following steps:
1) binding side wall reinforcing steel bars;
2) when the bottom plate is constructed, a phi 25U-shaped foundation bolt is embedded longitudinally every 50cm, the embedding depth is not less than 50cm, and the exposed concrete surface of the foundation bolt is not less than 10 cm;
3) connecting the template and two triangular trusses through hook heads and bolts to form a single-piece mold frame; hoisting a single-piece single-side mould frame to the site from a stacking site, wherein the single-piece single-side mould frame needs to be lightly placed and lifted during hoisting, and a plurality of single-side mould frames need to be orderly arranged on a leveling site when stacked together, so that the single-side mould frames are not overlapped to avoid deformation of the single-side mould frames;
4) mounting a beam pressing channel steel after mounting a single-side mould frame, connecting and fixing the beam pressing channel steel with embedded foundation bolts by hook head bolts, and fixing the lower beam position of each triangular truss by 2 adjusting supports
5) Adjusting a rear adjusting support of the single-side mold frame until the upper opening of the template inclines inwards to the wall;
6) the cross beam and the cross beam of the single-side die frame, and the diagonal rod are connected into a whole through a transverse steel pipe;
7) and before concrete pouring, finally fastening and checking the primary embedded part stress system. And meanwhile, the operation platform is installed according to the standard requirement.
6. The construction method of the one-sided formwork support system according to claim 5, wherein: and (3) after the side wall steel bar binding acceptance is qualified in the step 1, clearing and chiseling concrete slag at the bracket of the cable trench, and firmly adhering foam rubber.
In a preferred embodiment: the foundation bolt is also reinforced and fixed by adopting a steel bar.
In a preferred embodiment: in step 5, the upper opening of the template is inwards inclined for 5 mm.
In a preferred embodiment: the template is a steel plate with the height of 5 meters, the width of 2 meters and the thickness of 6 mm.
In a preferred embodiment: the number of the hook head bolts is six, and the hook head bolts are distributed at intervals along the height direction of the template.
The invention provides a unilateral formwork support system and a construction method thereof, which mainly utilize a section steel triangular truss and an embedded part as a stress support system of a unilateral wall formwork, and when the unilateral bracket is adopted by the wall formwork, the wall bolt does not need to be pulled through the formwork. One end of the unilateral bracket is connected with the foundation bolt through a 45-degree high-strength stressed bolt, the other end of the unilateral bracket is in inclined pull with the unilateral template bracket, the inclined pull bolt is divided into a vertical force F2 and a horizontal force F1 after being subjected to an inclined pull anchor force F, wherein the vertical force F2 resists the upper buoyancy of the bracket, and the horizontal force F1 ensures that the bracket cannot generate side shift. The whole stress is uniform, the rigidity requirement of the ultrahigh wall can be met, the erecting speed is high, and the economic benefit is improved. The appearance quality of the wall concrete is improved by the integrity of the template.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
fig. 2-5 are schematic construction views of the preferred embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are used in a broad sense, and for example, "connected" may be a wall-mounted connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.
Referring to fig. 1, the present embodiment provides a single-sided formwork support system, comprising; the single-side formwork comprises a formwork 1 and two triangular trusses 2; the two triangular trusses 2 are arranged at intervals along the length direction of the template 1;
the template 1 is attached to side wall steel bars 3 and connected with the triangular truss 2 through hook bolts 4; foundation bolts 5 which are in one-to-one correspondence with the triangular truss 2 are arranged on one side, close to the side wall steel bars 3, of the bottom plate, one ends of the foundation bolts 5 are inserted into the bottom plate, the other ends of the foundation bolts 5 are connected with hooks of hook bolts 6 in a hanging mode, and the other ends of the hook bolts 6 are fixed with the triangular truss 2;
the position of a lower cross beam 7 of the triangular truss 2 is fixed through an adjusting support 8; a plurality of first welded steel pipes 10 are arranged on the diagonal rods 9 of the triangular truss 2 at intervals, and second welded steel pipes 11 are arranged on the cross beam of the triangular truss 2; the first welded steel pipe 10 and the second welded steel pipe 11 corresponding to different triangular trusses 2 are respectively connected with each other into a whole through a transverse steel pipe.
In order to facilitate detection of perpendicularity by construction workers, an operating platform 12 is arranged above the uppermost beam of the triangular truss 2.
In addition, two adjacent cross beams 13 of the triangular truss 2 are connected through a diagonal support bar 14. And an included angle of 45 degrees is formed between the foundation bolt 5 and the bottom plate.
Referring to fig. 2 to 5, the present embodiment further provides a construction method of the single-sided formwork support system, including the following steps:
1) binding side wall steel bars 3;
2) when the bottom plate is constructed, a phi 25U-shaped foundation bolt 5 is embedded longitudinally every 50cm, the embedding depth is not less than 50cm, and the exposed concrete surface of the foundation bolt 5 is not less than 10 cm;
3) connecting a template 1 and two triangular trusses 2 through hook head bolts 4 to form a single-piece mold frame; hoisting a single-piece single-side mould frame to the site from a stacking site, wherein the single-piece single-side mould frame needs to be lightly placed and lifted during hoisting, and a plurality of single-side mould frames need to be orderly arranged on a leveling site when stacked together, so that the single-side mould frames are not overlapped to avoid deformation of the single-side mould frames;
4) mounting a beam channel steel after each single-side mould frame is mounted, connecting and fixing the beam channel steel with embedded foundation bolts 5 by hook head bolts 4, and fixing the beam channel steel at the position 137 of a lower cross beam 2 of each triangular truss by 2 adjusting supports 8
5) Adjusting a rear adjusting support 8 of the single-side mould frame until the upper opening of the template 1 is inwards inclined towards the wall;
6) the cross beam 13 and the cross beam 13 of the single-side die carrier, and the diagonal rod 9 are connected into a whole through a transverse steel pipe;
7) and before concrete pouring, finally fastening and checking the primary embedded part stress system. While the operation platform 12 is installed according to the specification.
6. The construction method of the one-sided formwork support system according to claim 5, wherein: and (3) after the side wall steel bars 3 are bound and accepted in the step (1), clearing and chiseling concrete slag at the bracket of the cable trench, and firmly adhering foam adhesive.
In particular, the anchor bolts 5 are also reinforced and fixed by steel bars. In the step 5, the upper opening of the template 1 is inwards inclined for 5 mm. The template 1 is a steel plate with the height of 5 meters, the width of 2 meters and the thickness of 6 mm. The number of the hook head bolts 4 is six, and the hook head bolts are distributed at intervals along the height direction of the template 1.
The unilateral formwork support system and the construction method thereof mainly utilize the section steel triangular truss 2 and the embedded part as a stress support system of the unilateral wall formwork 1, and after the unilateral support is adopted by the wall formwork 1, the wall bolt does not need to be pulled through the formwork 1. One end of the single-side bracket is connected with the foundation bolt 5 through a 45-degree high-strength stressed bolt, the other end of the single-side bracket is obliquely pulled on the bracket of the single-side template 1, the oblique-pulling bolt is divided into a vertical force F2 and a horizontal force F1 after being subjected to oblique-pulling anchor force F, wherein the vertical force F2 resists the upper buoyancy of the bracket, and the horizontal force F1 ensures that the bracket cannot be laterally moved. The whole stress is uniform, the rigidity requirement of the ultrahigh wall can be met, the erecting speed is high, and the economic benefit is improved. The formwork 1 integrally improves the appearance quality of wall concrete.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. A single-sided formwork support system is characterized by comprising; the single-side formwork comprises a formwork and two triangular trusses; the two triangular trusses are arranged at intervals along the length direction of the template;
the template is attached to the side wall steel bars and connected with the triangular truss through hook bolts; foundation bolts which are in one-to-one correspondence with the triangular trusses are arranged on one side, close to the side wall steel bars, of the bottom plate, one ends of the foundation bolts are inserted into the bottom plate, the other ends of the foundation bolts are connected with hooks of the hook bolts in a hanging mode, and the other ends of the hook bolts are fixed with the triangular trusses;
the position of a lower cross beam of the triangular truss is fixed through an adjusting support; a plurality of first welded steel pipes are arranged on the diagonal rods of the triangular truss at intervals, and a second welded steel pipe is arranged on the cross beam of the triangular truss; and the first welded steel pipe and the second welded steel pipe corresponding to different triangular trusses are respectively connected into a whole through the transverse steel pipe.
2. The single-sided formwork support system of claim 1, wherein: the triangular truss is provided with an operating platform above the uppermost cross beam.
3. The single-sided formwork support system of claim 2, wherein: and two adjacent cross beams of the triangular truss are connected through an inclined support rod.
4. A single-sided formwork support system as claimed in claim 3, wherein: and an included angle of 45 degrees is formed between the foundation bolt and the bottom plate.
5. A construction method of the single-sided formwork support system of claim 1, characterized by comprising the steps of:
1) binding side wall reinforcing steel bars;
2) when the bottom plate is constructed, a phi 25U-shaped foundation bolt is embedded longitudinally every 50cm, the embedding depth is not less than 50cm, and the exposed concrete surface of the foundation bolt is not less than 10 cm;
3) connecting the template and two triangular trusses through hook heads and bolts to form a single-piece mold frame; hoisting a single-piece single-side mould frame to the site from a stacking site, wherein the single-piece single-side mould frame needs to be lightly placed and lifted during hoisting, and a plurality of single-side mould frames need to be orderly arranged on a leveling site when stacked together, so that the single-side mould frames are not overlapped to avoid deformation of the single-side mould frames;
4) mounting a beam pressing channel steel after mounting a single-side mould frame, connecting and fixing the beam pressing channel steel with embedded foundation bolts by hook head bolts, and fixing the lower beam position of each triangular truss by 2 adjusting supports
5) Adjusting a rear adjusting support of the single-side mold frame until the upper opening of the template inclines inwards to the wall;
6) the cross beam and the cross beam of the single-side die frame, and the diagonal rod are connected into a whole through a transverse steel pipe;
7) and before concrete pouring, finally fastening and checking the primary embedded part stress system. And meanwhile, the operation platform is installed according to the standard requirement.
6. The construction method of the one-sided formwork support system according to claim 5, wherein: and (3) after the side wall steel bar binding acceptance is qualified in the step 1, clearing and chiseling concrete slag at the bracket of the cable trench, and firmly adhering foam rubber.
7. The construction method of the one-sided formwork support system according to claim 5, wherein: the foundation bolt is also reinforced and fixed by adopting a steel bar.
8. The construction method of the one-sided formwork support system according to claim 5, wherein: in step 5, the upper opening of the template is inwards inclined for 5 mm.
9. The construction method of the one-sided formwork support system according to claim 5, wherein: the template is a steel plate with the height of 5 meters, the width of 2 meters and the thickness of 6 mm.
10. The construction method of the one-sided formwork support system according to claim 5, wherein: the number of the hook head bolts is six, and the hook head bolts are distributed at intervals along the height direction of the template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110795434.5A CN113700035A (en) | 2021-07-14 | 2021-07-14 | Single-side formwork support system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110795434.5A CN113700035A (en) | 2021-07-14 | 2021-07-14 | Single-side formwork support system and construction method thereof |
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| Publication Number | Publication Date |
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| CN113700035A true CN113700035A (en) | 2021-11-26 |
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| CN202110795434.5A Pending CN113700035A (en) | 2021-07-14 | 2021-07-14 | Single-side formwork support system and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084695A (en) * | 2023-04-11 | 2023-05-09 | 北京城建集团有限责任公司 | Adjustable haunched outer wall unilateral formwork supporting system and installation method |
| CN117266243A (en) * | 2023-11-23 | 2023-12-22 | 北京建工集团有限责任公司 | Unilateral formwork construction method for special-shaped cross section well-shaped underground building |
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| JP2000129916A (en) * | 1998-10-29 | 2000-05-09 | Showa Kogyo:Kk | Form material for footing of building |
| CN102797357A (en) * | 2012-09-11 | 2012-11-28 | 江西省发达建筑集团有限公司 | Construction method of single-side mould supporting system |
| JP2014105425A (en) * | 2012-11-22 | 2014-06-09 | Marutaka Kogyo Inc | Reinforcing wall construction method |
| CN204151823U (en) * | 2014-10-11 | 2015-02-11 | 中铁一局集团有限公司 | Along building the one-sided cantilever hydraulic template trolley of side wall under covered back-digging structural slab |
| CN105401599A (en) * | 2015-12-24 | 2016-03-16 | 中铁十四局集团有限公司 | Open trench tunnel main structure tall side wall unilateral vertical mold and construction process thereof |
| CN209369328U (en) * | 2018-11-26 | 2019-09-10 | 中铁十六局集团有限公司 | A kind of removable die carrier structure of lateral wall mould |
-
2021
- 2021-07-14 CN CN202110795434.5A patent/CN113700035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000129916A (en) * | 1998-10-29 | 2000-05-09 | Showa Kogyo:Kk | Form material for footing of building |
| CN102797357A (en) * | 2012-09-11 | 2012-11-28 | 江西省发达建筑集团有限公司 | Construction method of single-side mould supporting system |
| JP2014105425A (en) * | 2012-11-22 | 2014-06-09 | Marutaka Kogyo Inc | Reinforcing wall construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084695A (en) * | 2023-04-11 | 2023-05-09 | 北京城建集团有限责任公司 | Adjustable haunched outer wall unilateral formwork supporting system and installation method |
| CN117266243A (en) * | 2023-11-23 | 2023-12-22 | 北京建工集团有限责任公司 | Unilateral formwork construction method for special-shaped cross section well-shaped underground building |
| CN117266243B (en) * | 2023-11-23 | 2024-03-01 | 北京建工集团有限责任公司 | Unilateral formwork construction method for special-shaped cross section well-shaped underground building |
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