CN112942600A - Construction device and construction method for improving construction quality of post-cast joint concrete of prefabricated laminated slab - Google Patents
Construction device and construction method for improving construction quality of post-cast joint concrete of prefabricated laminated slab Download PDFInfo
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- CN112942600A CN112942600A CN202110143283.5A CN202110143283A CN112942600A CN 112942600 A CN112942600 A CN 112942600A CN 202110143283 A CN202110143283 A CN 202110143283A CN 112942600 A CN112942600 A CN 112942600A
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- Prior art keywords
- post
- construction
- strip
- joint
- additional grout
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- 238000010276 construction Methods 0.000 title claims abstract description 76
- 239000004567 concrete Substances 0.000 title claims abstract description 38
- 239000011440 grout Substances 0.000 claims abstract description 52
- 239000002390 adhesive tape Substances 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims description 33
- 239000011083 cement mortar Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- 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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Abstract
The invention discloses a construction device for improving the construction quality of post-cast joint concrete of a prefabricated laminated slab and a construction method thereof, wherein the construction device comprises an additional grout stop strip and a double-sided adhesive tape; the construction device has reasonable structure, safety and reliability, reduces the cost of later-stage joint treatment, and effectively ensures the construction quality of post-cast joint concrete.
Description
Technical Field
The invention belongs to the technical field of engineering construction, and particularly relates to a construction device and a construction method for improving the construction quality of post-cast joint concrete of a prefabricated composite slab.
Background
With the rapid application of the assembly type components in the building construction project, the prefabricated composite floor slab is increasingly applied to the building project due to the outstanding advantages of resource and labor saving, rapid construction, good appearance quality and the like. The prefabricated composite slabs are connected through seams, the seams of the prefabricated composite floors in the existing prefabricated building concrete structure mainly adopt a post-cast seam form, but certain problems and disadvantages exist in field practical application, for example, due to elevation errors, a bottom die of the seams of the composite floors and the bottoms of the prefabricated composite slabs cannot be completely attached, when concrete is poured, slurry easily leaks at the joints of the post-cast seams and the prefabricated composite slabs, and peeling parts of two skins are formed at the seams, so that the quality of the post-cast seam concrete cannot be guaranteed.
Disclosure of Invention
The invention provides a construction device for improving the construction quality of post-cast joint concrete of a prefabricated laminated slab and a construction method thereof, and aims to solve the problems that the quality of the post-cast joint concrete cannot be guaranteed, the cost is increased, potential safety hazards are caused, and the appearance and the quality of a structure are influenced in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the construction device for improving the construction quality of the post-cast joint concrete of the prefabricated laminated slab comprises an additional grout stopping strip (1) and a double-sided adhesive tape (2), wherein a bottom die (4) is laid on a keel (3) of a post-cast joint supporting system, the additional grout stopping strip (1) is installed on the bottom die (4) along the inner side of a groove in the bottom of the prefabricated laminated slab (5), and the double-sided adhesive tape (2) is adhered to the bottom die (4) along the outer side edge of the additional grout stopping strip (1) and along the direction of the post-cast joint.
In the above scheme, the additional grout stopping strip (1) is preferably connected with the bottom die (4) and the keel (3) through a connecting nail (6).
It is also preferable that the outer side edge of the bottom of the groove of the bottom of the prefabricated laminated slab (5) is pressed on the double-sided adhesive tape (2).
It is also preferred that an additional grout stop strip (1) is embedded in the inner side edge of the groove.
It is also preferred that the additional grout stop strip (1) is smoothed with cement mortar (8) after its removal.
The construction method of the construction device for the construction quality of the post-cast joint concrete of the prefabricated laminated slab comprises the following steps of:
laying a post-pouring joint bottom die (4): paving a bottom die (4) at the position of a post-pouring joint on the keel (3) along the direction of the post-pouring joint, so that the bottom die (4) and the prefabricated composite slab (5) have the lap joint quantity with the preset width, and the central line of the bottom die (4) is superposed with the central line of the post-pouring joint;
installing an additional grout stopping strip (1): installing the additional grout stopping strip (1) on the bottom die (4) along the inner side of the groove of the bottom of the prefabricated laminated slab (5) by the processed additional grout stopping strip (1);
pasting a double-sided adhesive tape (2): adhering a double-sided adhesive tape (2) on the bottom die (4) along the edge of the additional grout stopping strip (1) and along the direction of the post-pouring joint;
hoisting the prefabricated laminated slab (5) to an operation surface, pressing the outer side edge of the groove on the double-sided adhesive tape (2), and embedding the additional grout stopping strip (1) into the inner side edge of the groove;
and (3) finishing pouring of the post-pouring joint concrete (7), removing the bottom die (4) and the additional grout stopping strips (1), and trowelling the positions of the additional grout stopping strips (1) by adopting cement mortar (8).
In the scheme, when the additional grout stopping strip (1) is installed on the bottom die (4), the additional grout stopping strip (1), the bottom die (4) and the keel (3) are preferably connected into a whole through the connecting nail (6).
It is also preferable that when the position of the additional grout stopping strip (1) is leveled by using cement mortar (8), the cement mortar (8) with the same mixing ratio as that of the prefabricated laminated slab (5) is used.
The invention can achieve the following beneficial effects:
the construction device and the construction method for improving the construction quality of the post-cast joint concrete of the prefabricated laminated slab can solve the problems that the quality of the post-cast joint concrete cannot be guaranteed, the cost is increased, potential safety hazards are caused, and the appearance and the quality of the structure are influenced in the prior art, and the construction device is reasonable in structure, safe and reliable, reduces post-processing cost, and guarantees the construction quality of the post-cast joint concrete.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic side view showing the construction apparatus for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab according to the present invention.
Fig. 2 is a schematic view of a section a of the construction apparatus for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab in fig. 1.
FIG. 3 is a schematic view of a construction apparatus for improving the quality of post-cast joint concrete construction of a prefabricated composite slab according to the present invention.
FIG. 4 is a schematic side view of the construction method for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab.
Reference numbers in the figures: 1 is an additional grout stopping strip, 2 is a double-sided adhesive tape, 3 is a keel, 4 is a bottom die, 5 is a prefabricated laminated slab, 6 is a connecting nail, 7 is post-cast joint concrete, 8 is cement mortar, and 9 is a post-cast joint supporting system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
According to the drawings 1 to 4, the construction device for improving the construction quality of the post-cast joint concrete of the prefabricated laminated slab comprises an additional grout stop strip (1) and a double-sided adhesive tape (2), a bottom mould (4) is laid on a keel (3) of a post-cast joint supporting system, the additional grout stop strip (1) is installed on the bottom mould (4) along the inner side of a groove in the bottom of the prefabricated laminated slab (5), and the double-sided adhesive tape (2) is pasted on the bottom mould (4) along the outer side edge of the additional grout stop strip (1) and along the direction of the post-cast joint.
Example 2
Referring to fig. 1 to 4, a construction device for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab can further comprise an additional grout stop strip (1) connected with a bottom mold (4) and a keel (3) through a connecting nail (6) on the basis of embodiment 1.
Furthermore, the outer side edge of the bottom of the groove of the bottom of the prefabricated laminated slab (5) is pressed on the double-sided adhesive tape (2).
Still further, an additional grout stopping strip (1) is embedded in the inner side edge of the groove.
Furthermore, the additional grout stopping strip (1) is leveled by adopting cement mortar (8) after being removed.
Example 3
The construction method of the construction device for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab, which is described in the embodiment 1 and the embodiment 2, comprises the following steps:
laying a post-pouring joint bottom die (4): paving a bottom die (4) at the position of a post-pouring joint on the keel (3) along the direction of the post-pouring joint, and ensuring that the bottom die (4) and the prefabricated composite slab (5) have the lap joint quantity with the preset width, so that the central line of the bottom die (4) is superposed with the central line of the post-pouring joint;
installing an additional grout stopping strip (1): installing the additional grout stopping strip (1) on the bottom die (4) along the inner side of the groove of the bottom of the prefabricated laminated slab (5) by the processed additional grout stopping strip (1);
pasting a double-sided adhesive tape (2): adhering a double-sided adhesive tape (2) on the bottom die (4) along the edge of the additional grout stopping strip (1) and along the direction of the post-pouring joint;
hoisting the prefabricated laminated slab (5) to an operation surface, pressing the outer side edge of the groove on the double-sided adhesive tape (2), and embedding the additional grout stopping strip (1) into the inner side edge of the groove;
and (3) finishing pouring of the post-pouring joint concrete (7), removing the bottom die (4) and the additional grout stopping strips (1), and trowelling the positions of the additional grout stopping strips (1) by adopting cement mortar (8).
Example 4
The construction method of the construction device for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab in embodiment 3 may further include specifically, when the additional grout stopping strip (1) is installed on the bottom form (4), the additional grout stopping strip (1), the bottom form (4) and the keel (3) are connected into a whole through the connecting nail (6).
And specifically, when the position of the additional grout stopping strip (1) is leveled by adopting the cement mortar (8), the cement mortar (8) with the same mixing ratio as that of the prefabricated laminated slab (5) is adopted.
According to the construction device and the construction method for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab, the cross section of the additional grout stop strip 1 can be rectangular, and is preferably square. The number of additional stop bars 1 may be at least two. Can solve the post-cast joint seam concrete 7 quality that exists among the prior art and can not obtain the assurance, the cost increases, cause the potential safety hazard and influence the problem of structure outward appearance and quality, its device sets up two additional grout stopping strips 1 card and compresses tightly at the post-cast strip position at 5 recess inboards of prefabricated superimposed sheet, paste two-sided adhesive tape 2 along the 1 outside both sides of additional grout stopping strip along the post-cast joint seam direction on the die block simultaneously, and it is as an organic whole with 4 nails of die block to use connecting nail 6 with additional grout stopping strip 1, guarantee that seam crossing does not leak thick liquid. The construction method can effectively solve a series of problems that the joint of the traditional prefabricated composite slab 5 is cracked and leaks slurry due to improper construction, the quality of post-cast joint concrete 7 is difficult to control, even later-period water leakage and the like, can enable construction operation to be simpler and more convenient through process improvement and material optimization, improves construction efficiency, is easier to ensure construction quality, shortens construction period, reduces secondary treatment cost, and avoids the occurrence of cracking and water seepage phenomena of the prefabricated composite slab at the joint. The groove is a rectangular groove. The cross section of the double-sided adhesive tape 2 can be rectangular. The bottom die 4 is connected to the top of the keel 3. The keel 3 can comprise at least two keel beams which are uniformly distributed, the cross section of each keel beam can be rectangular, and the bottom die 4 is connected to the top of each keel beam. The bottom mold 4 may be rectangular. The prefabricated composite slab 5 is connected to the bottom die 4, and the prefabricated composite slab 5 can be rectangular. The connecting nails 6 can be iron nails, the additional grout stopping strip 1 can be nailed with the bottom die 4 into a whole through at least two connecting nails 6, and the connecting nails 6 are preferably uniformly distributed.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. The utility model provides an improve construction equipment of precast composite slab post-cast joint seam concrete construction quality, ends thick liquid strip (1) and two-sided adhesive tape (2) including the addition, its characterized in that, back-cast joint seam supports fossil fragments (3) upper berth of system and is equipped with die block (4), and die block (4) are followed precast composite slab (5) bottom recess inboard installation and are additionally ended thick liquid strip (1), follow the addition on die block (4) and end thick liquid strip (1) outside limit, in the same direction as two-sided adhesive tape (2) of post-cast joint seam orientation.
2. The construction equipment for improving the concrete construction quality of the post-cast joint of the precast composite slab as claimed in claim 1, wherein the additional grout stop strip (1) is connected with the bottom form (4) and the keel (3) by the connecting nail (6).
3. The construction equipment for improving the concrete construction quality of the post-cast joint of the prefabricated composite slab as claimed in claim 2, wherein the outer side edge of the bottom of the groove of the bottom of the prefabricated composite slab (5) is pressed on the double-sided adhesive tape (2).
4. The construction equipment for improving the construction quality of the precast composite slab post-cast joint concrete according to claim 3, wherein an additional grout stop strip (1) is embedded in the inner side edge of the groove.
5. The construction equipment for improving the construction quality of the post-cast joint concrete of the prefabricated composite slab as claimed in claim 4, wherein the additional grout stop strip (1) is screeded with cement mortar (8) after it is removed.
6. The construction method of the construction equipment for the construction quality of the post-cast joint concrete of the prefabricated composite slab as claimed in any one of claims 1 to 5, comprising the steps of:
laying a post-pouring joint bottom die (4): paving a bottom die (4) at the position of a post-pouring joint on the keel (3) along the direction of the post-pouring joint, so that the bottom die (4) and the prefabricated composite slab (5) have the lap joint quantity with the preset width, and the central line of the bottom die (4) is superposed with the central line of the post-pouring joint;
installing an additional grout stopping strip (1): installing the additional grout stopping strip (1) on the bottom die (4) along the inner side of the groove of the bottom of the prefabricated laminated slab (5) by the processed additional grout stopping strip (1);
pasting a double-sided adhesive tape (2): adhering a double-sided adhesive tape (2) on the bottom die (4) along the edge of the additional grout stopping strip (1) and along the direction of the post-pouring joint;
hoisting the prefabricated laminated slab (5) to an operation surface, pressing the outer side edge of the groove on the double-sided adhesive tape (2), and embedding the additional grout stopping strip (1) into the inner side edge of the groove;
and (3) finishing pouring of the post-pouring joint concrete (7), removing the bottom die (4) and the additional grout stopping strips (1), and trowelling the positions of the additional grout stopping strips (1) by adopting cement mortar (8).
7. The construction method of the construction device for the post-cast joint concrete construction quality of the prefabricated composite slab as claimed in claim 6, wherein when the additional grout stopping strip (1) is installed on the bottom form (4), the additional grout stopping strip (1), the bottom form (4) and the keel (3) are connected into a whole through the connecting nail (6).
8. The construction method of the construction equipment for the construction quality of the post-cast joint concrete of the prefabricated composite slab as claimed in claim 6, wherein when the position of the additional grout stop strip (1) is leveled by using the cement mortar (8), the cement mortar (8) having the same mixing ratio as that of the prefabricated composite slab (5) is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143283.5A CN112942600A (en) | 2021-02-02 | 2021-02-02 | Construction device and construction method for improving construction quality of post-cast joint concrete of prefabricated laminated slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143283.5A CN112942600A (en) | 2021-02-02 | 2021-02-02 | Construction device and construction method for improving construction quality of post-cast joint concrete of prefabricated laminated slab |
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| CN112942600A true CN112942600A (en) | 2021-06-11 |
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| CN202110143283.5A Pending CN112942600A (en) | 2021-02-02 | 2021-02-02 | Construction device and construction method for improving construction quality of post-cast joint concrete of prefabricated laminated slab |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818715A (en) * | 2021-09-27 | 2021-12-21 | 成都城投建筑工程有限公司 | Filling device and filling method for remaining gaps of laminated slab |
| CN114000632A (en) * | 2021-11-29 | 2022-02-01 | 山东高速德建集团有限公司 | Laminated slab construction structure free of ash adhesion and construction process thereof |
| CN114033167A (en) * | 2021-12-17 | 2022-02-11 | 中国十七冶集团有限公司 | Post-cast joint structure of laminated slab and construction method |
| CN115419257A (en) * | 2022-10-25 | 2022-12-02 | 中建八局第二建设有限公司 | Laminated plate post-cast strip sealing construction method and sealing structure |
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| CN210152240U (en) * | 2019-04-09 | 2020-03-17 | 中国建筑第二工程局有限公司 | Template for preventing slurry leakage of splicing seams of laminated slab |
| CN111364661A (en) * | 2020-04-07 | 2020-07-03 | 中建四局第一建筑工程有限公司 | Connecting method and structure of wide splicing seam of light floor |
| CN111502255A (en) * | 2020-04-15 | 2020-08-07 | 广西建工集团第五建筑工程有限责任公司 | Fabricated building laminated slab joint pouring body, pouring hanging die and construction method thereof |
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2021
- 2021-02-02 CN CN202110143283.5A patent/CN112942600A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100805842B1 (en) * | 2007-10-29 | 2008-02-21 | 고삼석 | A joint device and construction method of concrete structure |
| CN109707090A (en) * | 2019-03-01 | 2019-05-03 | 中建二局第二建筑工程有限公司 | A kind of superimposed sheet reinforces pre-buried anti-faulting of slab ends structure and construction method under band plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818715A (en) * | 2021-09-27 | 2021-12-21 | 成都城投建筑工程有限公司 | Filling device and filling method for remaining gaps of laminated slab |
| CN114000632A (en) * | 2021-11-29 | 2022-02-01 | 山东高速德建集团有限公司 | Laminated slab construction structure free of ash adhesion and construction process thereof |
| CN114033167A (en) * | 2021-12-17 | 2022-02-11 | 中国十七冶集团有限公司 | Post-cast joint structure of laminated slab and construction method |
| CN115419257A (en) * | 2022-10-25 | 2022-12-02 | 中建八局第二建设有限公司 | Laminated plate post-cast strip sealing construction method and sealing structure |
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Application publication date: 20210611 |