CN109025293B - Thick plate side mold post-cast strip supporting method - Google Patents
Thick plate side mold post-cast strip supporting method Download PDFInfo
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- CN109025293B CN109025293B CN201810849209.3A CN201810849209A CN109025293B CN 109025293 B CN109025293 B CN 109025293B CN 201810849209 A CN201810849209 A CN 201810849209A CN 109025293 B CN109025293 B CN 109025293B
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- cast strip
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Abstract
The invention relates to the field of building construction, in particular to a thick plate side form post-cast strip supporting method, which comprises the following steps: (1) designing a post-cast strip template construction drawing with the thick plate thickness of more than 300 mm; (2) construction preparation: preparing a hose, a batten, a multilayer board, an inflator pump, an inflation nozzle and a hose hoop; (3) binding steel bars and installing a hose: binding gluten and bottom ribs according to a designed post-pouring belt template construction drawing, and installing a hose in an air column installation cavity bound between the bottom ribs and the surface ribs; (4) hose fixation and inflation: fixing the hose, plugging two ends of the hose by using an inflating nozzle through a hose clamp, and inflating the hose by using an inflator pump to form an air column playing a role of a side mold; (5) pouring concrete: concrete pouring of the parts outside the thick plate post-cast strip area is completed; (6) removing the mold, and deflating and extracting the hose; (7) and (5) cleaning and recycling the hose. The air column formed after the hose is inflated is utilized to block the concrete, and the effect of a side die is achieved.
Description
Technical Field
The invention relates to the field of building construction, in particular to a thick plate side mold post-cast strip supporting method.
Background
In order to meet the social development requirements at the present stage, particularly the requirements of building functions and appearance modeling, the scale of engineering buildings is gradually enlarged, and the requirements on the overall structure quality of the engineering buildings are higher and higher. At the present stage, in post-cast strip construction, a wood formwork or a steel wire mesh is adopted for formwork erection, so that the problems of difficult formwork fixation, easy formwork explosion, slurry leakage, poor forming effect and the like occur. The construction technology is obviously careless, and the necessity of innovation of the construction technology is gradually highlighted.
Disclosure of Invention
The invention aims to provide a method for supporting a thick plate side mold post-cast strip, which utilizes an air column formed after a hose is inflated to separate concrete so as to achieve the effect of a side mold.
The technical scheme of the invention is as follows: a thick plate side mold post-cast strip supporting method comprises the following steps:
(1) designing a post-cast strip template construction drawing with the thick plate thickness of more than 300 mm;
(2) construction preparation: preparing a hose, a batten, a multilayer board, an inflator pump, an inflation nozzle and a hose hoop;
(3) binding steel bars and installing a hose: binding gluten and bottom ribs according to a designed post-pouring belt template construction drawing, and installing a hose in an air column installation cavity bound between the bottom ribs and the surface ribs;
(4) hose fixation and inflation: fixing the hose, plugging two ends of the hose by using an inflating nozzle through a hose clamp, and inflating the hose by using an inflator pump to form an air column playing a role of a side mold;
(5) pouring concrete: concrete pouring of the parts outside the thick plate post-cast strip area is completed;
(6) removing the mold, and deflating and extracting the hose;
(7) and (5) cleaning and recycling the hose.
Further, in the step (3), when the thickness of the thick plate is 300-500mm, firstly laying a lower template, binding bottom ribs on the upper side of the lower template, and arranging a pair of battens between the bottom ribs and the lower template and at the lower side of the area for forming the post-cast strip; a reinforcing steel bar support is arranged on the bottom rib and positioned on the upper sides of the pair of battens, and limiting reinforcing steel bars forming an air column installation cavity with the reinforcing steel bar support are arranged on the outer side of the reinforcing steel bar support; the hose is arranged in the air column installation cavity from bottom to top; ligature gluten to set up the flitch respectively in the upside of gluten and the top that is located the gas column installation cavity.
Further, the steel bar support is formed by arranging steel bars with the diameter of 14mm at intervals of 500 mm; the limiting steel bars are formed by arranging steel bars with the diameter of 10mm at intervals of 1000 mm.
Further, in the step (3), when a water stop steel plate is arranged in the thick plate: laying a waterproof coiled material in a preset concave part of the cushion layer, binding bottom ribs on the upper side of the cushion layer, and arranging a pair of concrete strips between the waterproof coiled material and the bottom ribs and on the lower side of an area for forming a post-cast strip; a steel bar support is arranged on the bottom rib and positioned at the upper sides of the pair of concrete bars, and water stop steel plates in a cantilever state are respectively arranged at the upper ends of the two side parts of the steel bar support; welding a water stop steel plate with the lower end of a U-shaped steel bar hoop, and respectively installing two superposed hoses on the lower side of the water stop steel plate and in the U-shaped steel bar hoop; and gluten binding is carried out, and battens are respectively arranged on the gluten and above the U-shaped reinforced hoops.
Further, the steel bar support is formed by arranging reinforcing bars with the diameter of 14mm at intervals of 500mm, and the U-shaped steel bar hoop is formed by arranging U-shaped steel bars with the diameter of 10mm at intervals of 500 mm.
Further, when the height of the part below the water stop plate exceeds 300mm, a concrete side steel bar support needs to be additionally arranged on the concrete head-on side of the water stop steel plate, and the concrete side steel bar support is formed by arranging steel bars with the diameter of 10mm at intervals of 500 mm.
Further, the hose is a hose which contains a double-layer polyester fiber reinforced net and is provided with a PVC coating on the surface, and the diameter of the hose is 50mm, 80mm or 100 mm; the number of the hoses is more than three; the inflation pressure of the hose is less than or equal to 0.6 Mpa.
Further, in the step (6), the mould is removed after the concrete reaches the initial setting strength, the hose cannot be pulled out brute force during mould removal, and after the hose needs to be deflated, the hose is moved to the middle position of the post-cast strip and then pulled out.
Further, in the step (7), the removed hose is cleaned with clean water, dried and recycled.
Compared with the prior art, the invention has the following advantages: the air pump is used for inflating after the installation of the hose is finished, the hose is filled with gaps caused by the extrusion of the upper reinforcing steel bar and the lower reinforcing steel bar during inflation, the air column formed after the inflation of the hose is used for separating concrete, the side die is achieved, the traditional steel wire mesh and wood die are replaced, and the air pump is suitable for engineering construction of frame structures, frame shear wall structures, shear wall structures and the like with the plate thickness of 300 plus materials of 500mm and provided with post-pouring belts. When the concrete is poured and pounded, the phenomena of bulging, slurry leakage and the like are not easy to occur, the forming effect is good, manual digging and cleaning of the bulging and the slurry leakage are not needed, time and labor are saved, the cost is saved, and the construction quality is improved; the steel bars at the position meeting the steel bars, particularly at the position of a post-cast strip, are usually dense, and do not need to be slotted to form holes or arranged in a straight line in a fixed small wood bar mode, the installation can be finished as long as the hose passes through the space between the bottom bar and the gluten of the post-cast strip and is filled with gas, the installation is simple, the construction is convenient and fast, and the construction period is saved; after the concrete pouring is finished and the initial setting strength is reached, the gas in the hose is discharged, the hose is drawn out to complete the form removal, and the form removal is easy; can be repeatedly used, improves the turnover frequency and reduces the construction cost.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Example one refer to FIG. 1
A thick plate side mold post-cast strip supporting method comprises the following steps:
(1) designing a post-cast strip template construction drawing with the thick plate thickness of more than 300 mm;
(2) construction preparation: preparing a hose, a batten, a multilayer board, an inflator pump, an inflation nozzle and a hose hoop;
(3) binding steel bars and installing a hose: binding gluten and bottom ribs according to a designed post-pouring belt template construction drawing, and installing a hose in an air column installation cavity bound between the bottom ribs and the surface ribs;
(4) hose fixation and inflation: the hose is fixed, the two ends of the hose are plugged by the inflating nozzles through the hose clamp, the hose is inflated by the inflator pump to form an air column serving as a side mold, and the phenomena of slurry leakage and mold running are avoided during concrete pouring;
(5) pouring concrete: concrete pouring of the parts outside the thick plate post-cast strip area is completed;
(6) removing the mold, and deflating and extracting the hose;
(7) and (5) cleaning and recycling the hose.
In the embodiment, in the step (3), when the thickness a of the thick plate is 300-500mm, a lower template 1 is laid firstly, a bottom rib 2 is bound on the upper side of the lower template, and a pair of battens 3 are arranged between the bottom rib and the lower template and below the area for forming the post-cast strip 20 so as to be used for caulking; a reinforcing steel bar support 4 is arranged on the bottom rib and positioned on the upper sides of the pair of battens, and a limiting reinforcing steel bar 5 forming an air column installation cavity with the reinforcing steel bar support is arranged on the outer side of the reinforcing steel bar support; 4 hoses 6 are arranged in the air column installation cavity from bottom to top; ligature gluten 7 to just be located the top of gas column installation cavity at the upside of gluten and set up flitch 8 respectively, be used for intercepting the concrete when later stage concrete placement. A post-cast strip is formed between the two limiting reinforcing steel bars, and the reinforcing steel bars in the post-cast strip plate are communicated.
In the embodiment, the reinforcing steel bar support is formed by arranging reinforcing steel bars with the diameter of 14mm at intervals of 500mm, so that the air column is reinforced; spacing reinforcing bar is formed by the reinforcing bar that the diameter is 10mm according to 1000mm intervals arrangement, prevents that the gas column from dropping before concrete placement.
In the embodiment, the hose is a hose which contains a double-layer polyester fiber reinforced net and has a PVC coating on the surface, the diameter of the hose is 50mm, 80mm or 100mm, and the wall thickness is 1.0 mm; the inflation pressure of the hose is less than or equal to 0.6Mpa, and the hose is prevented from bursting when the pressure is too high.
In this embodiment, in the step (4), the inflation and the fixation are performed after the gluten binding is completed.
In this embodiment, in the step (6), the mold is removed after the concrete reaches the initial setting strength, the hose is not able to be pulled out brutally when the mold is removed, the hose is moved to the middle of the post-cast strip and then pulled out after the hose needs to be deflated, and the area between the two limiting steel bars in the thick plate is the post-cast strip.
In this embodiment, in the step (7), the removed hose is cleaned with clean water, and is recycled after being dried, so as to be reused.
Example two referring to fig. 2
A thick plate side mold post-cast strip supporting method comprises the following steps:
(1) designing a post-cast strip template construction drawing with the thick plate thickness of more than 300 mm;
(2) construction preparation: preparing a hose, a batten, a multilayer board, an inflator pump, an inflation nozzle and a hose hoop;
(3) binding steel bars and installing a hose: binding gluten and bottom ribs according to a designed post-pouring belt template construction drawing, and installing a hose in an air column installation cavity bound between the bottom ribs and the surface ribs;
(4) hose fixation and inflation: the hose is fixed, the two ends of the hose are plugged by the inflating nozzles through the hose clamp, the hose is inflated by the inflator pump to form an air column serving as a side mold, and the phenomena of slurry leakage and mold running are avoided during concrete pouring;
(5) pouring concrete: concrete pouring of the parts outside the thick plate post-cast strip area is completed;
(6) removing the mold, and deflating and extracting the hose;
(7) and (5) cleaning and recycling the hose.
In this embodiment, in the step (3), when the thick plate is provided with the water stop steel plate 10: laying a waterproof coiled material 13 in a preset concave part 12 of a cushion layer 11, binding a bottom rib 2 on the upper side of the cushion layer, and arranging a pair of concrete strips 14 between the waterproof coiled material and the bottom rib and on the lower side of a region for forming a post-cast strip; a steel bar support 4 is arranged on the bottom rib and positioned at the upper side of the pair of concrete bars, and water stop steel plates in a cantilever state are respectively arranged at the upper ends of the two side parts of the steel bar support; welding a water stop steel plate with the lower end of a U-shaped steel bar hoop 15, and respectively installing two superposed hoses 6 on the lower side of the water stop steel plate and in the U-shaped steel bar hoop; ligature gluten 7 to on the gluten and be located the top of U-shaped steel muscle staple bolt and be provided with flitch 8 respectively, be used for intercepting the concrete when later stage concrete placement. Thereby forming a post-cast strip, and the steel bars in the plate of the post-cast strip are communicated.
In this embodiment, the installation of hose need alternate and accomplish in the reinforcing bar installation, can not transfer the gas post before stagnant water steel sheet installation, and steel sheet welded electroslag and spark are easily scalded it.
In this embodiment, the size of U shaped steel muscle staple bolt should be suitably greater than the diameter of hose, because the hose receives the extrusion after aerifing, and actual dimensions can be greater than former design size, like the U shaped steel muscle staple bolt of installation with the diameter size, can crowd askew with it after the hose is sufficient completely, influences fixed effect.
In this embodiment, steel bar support is arranged according to 500mm interval by diameter 14 mm's reinforcing bar and forms, U shaped steel muscle staple bolt is arranged according to 500mm interval by diameter 10 mm's U shaped steel muscle and forms.
In this embodiment, when the height of the portion below the water stop plate exceeds 300mm, the concrete-side reinforcing steel bar support 16 needs to be additionally arranged on the concrete head-on side of the water stop steel plate, and the concrete-side reinforcing steel bar support is formed by arranging reinforcing steel bars with the diameter of 10mm at intervals of 500 mm.
In the embodiment, the hose is a hose which contains a double-layer polyester fiber reinforced net and has a PVC coating on the surface, the diameter of the hose is 80mm, and the wall thickness is 1.0 mm; the inflation pressure of the hose is less than or equal to 0.6Mpa, and the hose is prevented from bursting when the pressure is too high.
In this embodiment, in the step (4), the inflation and the fixation are performed after the gluten binding is completed.
In this embodiment, in the step (6), the mold is removed after the concrete reaches the initial setting strength, the hose is not able to be pulled out brutally when the mold is removed, the hose needs to be deflated, the hose is moved to the middle position of the post-cast strip and then pulled out, and the area formed between the two concrete side steel bar supports and the U-shaped steel bar anchor ear in the thick plate is the post-cast strip.
In this embodiment, in the step (7), the removed hose is cleaned with clean water, and is recycled after being dried, so as to be reused.
It will be apparent to those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and that various modifications, changes, substitutions and alterations can be made in the method for supporting the side form of the slab side mold in various forms without any inventive step, and without departing from the spirit and scope of the present invention.
Claims (1)
1. A thick plate side mold post-cast strip supporting method is characterized by comprising the following steps:
(1) designing a post-cast strip template construction drawing with the thick plate thickness of more than 300 mm;
(2) construction preparation: preparing a hose, a batten, a multilayer board, an inflator pump, an inflation nozzle and a hose hoop;
(3) binding steel bars and installing a hose: binding gluten and bottom ribs according to a designed post-pouring belt template construction drawing, and installing a hose in an air column installation cavity bound between the bottom ribs and the surface ribs; when the thickness of the thick plate is 300-500mm, firstly laying a lower template, binding bottom ribs on the upper side of the lower template, and arranging a pair of battens between the bottom ribs and the lower template and at the lower side of an area for forming a post-cast strip; a reinforcing steel bar support is arranged on the bottom rib and positioned on the upper sides of the pair of battens, and limiting reinforcing steel bars forming an air column installation cavity with the reinforcing steel bar support are arranged on the outer side of the reinforcing steel bar support; the hose is arranged in the air column installation cavity from bottom to top; the air column installation cavity is arranged above the air column installation cavity, battens are arranged on the upper side of the gluten, the reinforcing steel bar support is formed by arranging reinforcing steel bars with the diameter of 14mm at intervals of 500mm, and the limiting reinforcing steel bars are formed by arranging reinforcing steel bars with the diameter of 10mm at intervals of 1000 mm; when the thick plate is provided with the water stop steel plate: laying a waterproof coiled material in a preset concave part of the cushion layer, binding bottom ribs on the upper side of the cushion layer, and arranging a pair of concrete strips between the waterproof coiled material and the bottom ribs and on the lower side of an area for forming a post-cast strip; a steel bar support is arranged on the bottom rib and positioned at the upper sides of the pair of concrete bars, and water stop steel plates in a cantilever state are respectively arranged at the upper ends of the two side parts of the steel bar support; welding a water stop steel plate with the lower end of a U-shaped steel bar hoop, and respectively installing two superposed hoses on the lower side of the water stop steel plate and in the U-shaped steel bar hoop; the gluten binding device comprises a gluten binding device and a water stopping steel plate, wherein battens are respectively arranged on the gluten and above a U-shaped steel bar hoop, the steel bar support is formed by arranging steel bars with the diameter of 14mm at intervals of 500mm, the U-shaped steel bar hoop is formed by arranging U-shaped steel bars with the diameter of 10mm at intervals of 500mm, when the height of the part below the water stopping steel plate exceeds 300mm, a concrete side steel bar support is required to be additionally arranged on the concrete head-on side of the water stopping steel plate, and the concrete side steel bar support is formed by arranging steel bars with the diameter of 10mm at intervals of 500 mm;
(4) hose fixation and inflation: fixing a hose, plugging two ends of the hose by using an inflating nozzle through a hose clamp, inflating the hose by using an inflator pump to form an air column with a side mold effect, wherein the hose is installed by inserting the hose into the installation process of a steel bar, the air column cannot be placed before a water stop steel plate is installed, the hose is a hose which contains a double-layer polyester fiber reinforcing net and is provided with a PVC coating on the surface, and the diameter of the hose is 50mm, 80mm or 100 mm; the number of the hoses is more than three; the inflation pressure of the hose is less than or equal to 0.6 Mpa;
(5) pouring concrete: concrete pouring of the parts outside the thick plate post-cast strip area is completed;
(6) removing the mold, namely deflating and extracting the hose, removing the mold after the concrete reaches the initial setting strength, wherein the hose cannot be pulled out brute force during mold removal, and after the hose needs to be deflated, the hose is firstly moved to the middle position of the post-cast strip and then extracted;
(7) and cleaning the removed hose with clear water, and recovering after drying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810849209.3A CN109025293B (en) | 2018-07-28 | 2018-07-28 | Thick plate side mold post-cast strip supporting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849209.3A CN109025293B (en) | 2018-07-28 | 2018-07-28 | Thick plate side mold post-cast strip supporting method |
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| CN109025293B true CN109025293B (en) | 2020-11-06 |
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| CN110374234B (en) * | 2019-07-19 | 2024-04-09 | 杭州三丰装配式建筑科技有限公司 | Cavity node structure of assembled wall body and building frame and construction method |
| CN111441576A (en) * | 2020-04-14 | 2020-07-24 | 中建四局第一建筑工程有限公司 | Method and structure for pouring concrete beam post-cast strip by adopting inflatable template |
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| CN102635128A (en) * | 2012-04-27 | 2012-08-15 | 天津二十冶建设有限公司 | Foundation slab post-cast strip waterproof steel plate combined structure and bracing method thereof |
| CN106284427A (en) * | 2016-08-31 | 2017-01-04 | 中国冶集团有限公司 | A kind of basement post-pouring zone temporary leaking water gear soil construction method |
| CN206128631U (en) * | 2016-10-10 | 2017-04-26 | 启东建筑集团有限公司 | Inflatable post -cast strip side form props up establishes structure |
| KR20170138603A (en) * | 2016-06-07 | 2017-12-18 | 경희대학교 산학협력단 | the form unit of precast concrete joint and the construction method of form installing between column and girder using the same |
| CN207484964U (en) * | 2017-11-03 | 2018-06-12 | 重庆建工第四建设有限责任公司 | Side form structure at post-cast strip in concrete pouring construction |
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2018
- 2018-07-28 CN CN201810849209.3A patent/CN109025293B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635128A (en) * | 2012-04-27 | 2012-08-15 | 天津二十冶建设有限公司 | Foundation slab post-cast strip waterproof steel plate combined structure and bracing method thereof |
| KR20170138603A (en) * | 2016-06-07 | 2017-12-18 | 경희대학교 산학협력단 | the form unit of precast concrete joint and the construction method of form installing between column and girder using the same |
| CN106284427A (en) * | 2016-08-31 | 2017-01-04 | 中国冶集团有限公司 | A kind of basement post-pouring zone temporary leaking water gear soil construction method |
| CN206128631U (en) * | 2016-10-10 | 2017-04-26 | 启东建筑集团有限公司 | Inflatable post -cast strip side form props up establishes structure |
| CN207484964U (en) * | 2017-11-03 | 2018-06-12 | 重庆建工第四建设有限责任公司 | Side form structure at post-cast strip in concrete pouring construction |
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