CN111236681A - Hanging die for adding laminated slab at bottom of concrete slab and construction method thereof - Google Patents
Hanging die for adding laminated slab at bottom of concrete slab and construction method thereof Download PDFInfo
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- CN111236681A CN111236681A CN201811545658.5A CN201811545658A CN111236681A CN 111236681 A CN111236681 A CN 111236681A CN 201811545658 A CN201811545658 A CN 201811545658A CN 111236681 A CN111236681 A CN 111236681A
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0237—Increasing or restoring the load-bearing capacity of building construction elements of storey floors
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a hanging mould and a construction method thereof when a laminated slab is additionally arranged at the bottom of a concrete slab. The hoisting die and the construction method are as follows: the concrete structural slab is characterized in that a suspender is arranged on the corresponding reinforced concrete structural slab, one end of the suspender passes through a grouting hole on the corresponding reinforced concrete structural slab and is fixed on the upper part of the concrete structural slab, a square timber is fixedly connected to the other end of the suspender, a template is arranged on the square timber, the template and concrete beams on four sides of the corresponding reinforced concrete structural slab form a closed grouting space, the closed grouting space is reinforced by grouting materials, and the template is dismantled after the reinforcing and curing period of the grouting materials is finished. The invention has the characteristics of enhancing the stability of the template, preventing slurry leakage, saving cost, effectively controlling the thickness of the laminated plate and the like.
Description
Technical Field
The invention discloses a suspended formwork for adding a laminated slab at the bottom of a concrete slab and a construction method thereof, belonging to the technical field of building construction.
Background
Concrete structural panels play a load-bearing role throughout the building and are one of the major components. In the use process of a building, sometimes, structural reinforcement is needed to be carried out on a concrete structural slab by a method of adding a slab-bottom laminated slab, at this time, a formwork is generally supported by adopting a formwork scaffold, and the formwork scaffold is generally mainly composed of a wood formwork, a steel pipe and the like and is used for fixing the formwork. By adopting the method, the operation is complex, a full scaffold needs to be erected in the erecting process, the assembling and erecting workload is large, the construction efficiency is low, and the waste is serious.
The main body is as follows:
1, when a top plate support is erected, common steel pipe frames are mostly fixed in size, so that the height cannot be flexibly changed, the requirements of different floor heights are difficult to meet, the condition that the floor height is higher is often met during actual reinforcement construction, and a reinforcement environment mostly meets the condition that the reinforcement support ground has height difference or is not flat or does not have a steel pipe support construction environment for the floor bottom floor needing reinforcement, so that the construction of the template is greatly influenced;
2, because the length of the steel pipe is different from the required length, a plurality of steel pipes with different lengths need to be purchased or the steel pipes need to be cut and reused, the steel pipes can be cut and cut at will on site, and can be overlapped at will when being cut, which causes resource waste and difficulty in management work, and certain influence on construction quality and safety can be caused due to improper overlapping;
disclosure of Invention
The invention aims to provide a suspended formwork and a construction method thereof when a laminated slab is additionally arranged at the bottom of a concrete slab.
The invention is realized by the following technical scheme:
a hanging mould for adding a laminated slab at the bottom of a concrete slab and a construction method thereof are disclosed, wherein the hanging mould only relates to the reinforcement of the laminated slab at the bottom of the concrete structural slab. The hoisting die and the construction method are as follows: the concrete structural slab that needs to be consolidated sets up the jib, and jib one end is fixed on this concrete structural slab upper portion through the grout hole on the concrete structural slab that needs the structure, and the other end rigid coupling of jib has the square timber, sets up the template on the square timber, and the concrete beam of template and the concrete structural slab four sides that need to be consolidated forms a closed grout space, and this closed grout space adopts the grout material to consolidate, treats to carry out the template after the grout material consolidates the maintenance phase and demolishs.
A hanging mould and a construction method thereof when a laminated slab is newly added at the bottom of a concrete slab are characterized in that:
the first step is as follows: paying off and positioning: determining the size of a template and the position of a grouting hole required by the bottom of a newly added laminated slab according to the design requirement of a concrete structural slab (newly added laminated slab at the bottom of the slab) to be reinforced;
the second step is that: opening a grouting hole: according to the first step of paying-off positioning, grouting holes are formed in the surface of the concrete structure plate to be reinforced, and the concrete structure plate to be reinforced is prevented from being touched by the reinforcement of the concrete structure plate during drilling;
the third step: arranging a template: the bottom of the template is provided with square timber, the square timber is provided with a suspender, and the suspender penetrates through the square timber and the template and is fixed at the bottom of the square timber;
the fourth step: fixing the template: the method comprises the following steps of pulling a set template to the bottom of a concrete structural slab to be reinforced through a prepared grouting hole, fixing a suspender to the surface of the concrete structural slab to be reinforced through the grouting hole, adjusting the upper part of the suspender to finally determine the position of the suspended template, and forming a closed grouting space on a concrete structural beam around the concrete structural slab to be reinforced by the template after the template is adjusted;
the fifth step: and (3) sealing the gap: after the template is fixedly installed, adopting a foaming agent to seal gaps at the splicing position of the template and the joint of the template and the concrete structural beam at the periphery of the concrete structural slab to be reinforced;
and a sixth step: grouting a floor slab: grouting the closed grouting space through the opened grouting holes on the concrete structural slab to be reinforced;
the seventh step: removing the mold: removing the template after the strength grade of the grouting material reaches the design requirement, loosening the screw at the bottom of the square timber, removing the square timber and the template, and cutting off the hanger rod at the bottom of the newly added laminated slab and the hanger rod at the protruding part of the slab surface of the concrete structural slab to be reinforced;
eighth step: and (3) plastering engineering at the bottom of the laminated slab: and after the template is removed and the hanging rod at the protruding part of the bottom of the newly added laminated slab is removed, performing plastering work on the bottom of the newly added laminated slab.
Preferably, the template is placed above the square timber, and the square timber is arranged in the direction: the unidirectional plate is arranged in the long span direction, and the bidirectional plate can be arranged in the X direction or the Y direction.
Preferably, the square timber is connected by a suspender, and the suspender passes through the square plate and the template.
Preferably, the hanger rod penetrates through a grouting hole on the surface of the concrete structure plate to be reinforced, the length of the hanger rod is adjusted to determine the position of the template, and the difference of the pouring thickness of the laminated slab caused by the position deviation of the template is reduced.
Preferably, after the template is fixed, a foaming agent is adopted to seal the splicing gap of the template and the gap between the template and the concrete structural beam around the concrete structural slab to be reinforced, so that the problem of slurry leakage during grouting is reduced, and the aim of saving the construction cost is fulfilled.
Preferably, the template can loosen the screw at the bottom of the square timber after the strength of the grouting material reaches the design requirement, and quickly remove the template and the square timber so as to achieve the aim of accelerating the construction period.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention replaces the support of the common plate formwork scaffold, enhances the problems of formwork stability and support height deviation, and reduces the condition of different pouring thicknesses of the laminated slab caused by the position deviation of the formwork.
(2) The method has the advantages of simple and convenient operation process, time and labor saving, reduction of workload and improvement of construction efficiency.
(3) The invention avoids the situations of slurry leakage and casting thickness of the grouting material when the non-shrinkage grouting material is cast, reduces the construction cost and improves the visual appearance of the finished construction surface.
(4) The invention can be applied to the construction environment that the reinforced support ground has height difference or unevenness or can not provide steel pipe support.
(5) The invention avoids the problem that a large number of steel pipes are not required to be processed for the second time due to different lengths, thereby saving the engineering cost, avoiding the waste of resources and ensuring the construction quality.
(6) In the actual construction process, the invention can meet the construction requirements of different floor heights and has high practicability.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention
FIG. 2 is a schematic structural diagram of an embodiment of the present invention
In the figure, ①, a template, ②, a grouting hole, ③, square timber, ④, a hanging rod, ⑤ and a concrete member.
Detailed Description
A hanging mould and a construction method thereof when a laminated slab is newly added at the bottom of a concrete slab are characterized in that:
firstly, paying off and positioning, namely determining the size of a template ① and the position of a grouting hole ② according to the design requirement of a newly added laminated slab at the bottom of a concrete structural slab to be reinforced;
secondly, tapping a grouting hole ②, namely, positioning according to the first step of paying off, and forming a grouting hole ② in the floor slab, wherein the grouting hole should be avoided when the concrete structural slab rib to be reinforced is touched during drilling;
thirdly, arranging a template ①, namely arranging a template ① with a bottom die of square wood ① 0, placing an assembled template ① on the square wood ① 1, enabling a suspender ④ to penetrate through the square wood ③ and the template ① and be fixed below the square wood ③, placing a template ① above the square wood ③, arranging a unidirectional plate in the long span direction in the direction of the square wood ③, and arranging a bidirectional plate in the X direction or the Y direction;
fourthly, fixing a template ①, namely pulling a prepared template ① to the bottom of a concrete structural plate ② 0 to be reinforced through a grouting hole ②, fixing a suspender ④ in a grouting hole ② penetrating through the surface of the concrete structural plate ② 1 to be reinforced, adjusting the length of the suspender ④ to finally determine the position of the template ①, and finally forming a closed grouting space by the template ①, namely a concrete beam ⑤ around the concrete structural plate ⑤ to be reinforced;
fifthly, sealing gaps, namely sealing joints of the templates ① and joints of the templates ① and concrete beams ⑤ around the concrete structural slab ⑤ to be reinforced by using foaming agents after the templates ① are installed;
sixthly, grouting laminated plates, namely grouting closed grouting space on the concrete structural plate ⑤ to be reinforced through the opened grouting holes ②;
removing the formwork, namely removing the formwork ① after the strength grade of the grouting material meets the design requirement, loosening screws at the bottom of the square timber ③, removing the square timber ③ and the formwork ①, and finally cutting off redundant booms ④ at the bottom of the newly added laminated slab and booms ④ at the protruding part of the slab surface of the concrete structure slab to be reinforced;
and eighthly, a new superimposed sheet bottom plastering project, namely plastering the bottom of the new superimposed sheet after the template ① and the hanging rod ④ of the protruding part of the bottom of the new superimposed sheet are removed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A hanging mould and a construction method thereof when a laminated slab is newly added at the bottom of a concrete slab are characterized in that:
the first step is as follows: paying off and positioning: determining the size of a corresponding template and the position of a grouting hole at the bottom of a newly added laminated slab according to the design requirement of a corresponding concrete structural slab (newly added laminated slab at the bottom of the slab) to be reinforced;
the second step is that: opening a grouting hole: according to the first step of paying-off positioning, grouting holes are formed in the corresponding concrete structure slab faces, and when holes are drilled, the holes are avoided when corresponding concrete structure slab ribs are touched;
the third step: arranging a template: the bottom of the template is provided with square timber, the square timber is provided with a suspender, and the suspender penetrates through the square timber and the template and is fixed at the bottom of the square timber;
the fourth step: fixing the template: the method comprises the following steps of pulling a set template to the bottom of a corresponding concrete structure slab through a prepared grouting hole, fixing a suspender to the surface of the corresponding concrete structure slab through the grouting hole, adjusting the upper part of the suspender to finally determine the position of a suspended template, and forming a closed grouting space on the template, namely concrete structure beams around the corresponding concrete structure slab after the template is adjusted;
the fifth step: and (3) sealing the gap: after the template is fixedly installed, adopting a foaming agent to seal gaps at the splicing position of the template and the joint of the template and the concrete structural beam at the periphery of the concrete structural slab to be reinforced;
and a sixth step: grouting a floor slab: grouting the closed grouting space through the opened grouting holes on the corresponding concrete structure plates;
the seventh step: removing the mold: removing the template after the strength grade of the grouting material reaches the design requirement, loosening the screw at the bottom of the square timber, removing the square timber and the template, and cutting off the hanger rod at the bottom of the newly added laminated slab and the hanger rod at the protruding part of the slab surface of the concrete structural slab to be reinforced;
eighth step: and (3) plastering engineering at the bottom of the laminated slab: and after the template is removed and the hanging rod at the protruding part of the bottom of the newly added laminated slab is removed, performing plastering work on the bottom of the newly added laminated slab.
2. The hanging form used when adding the laminated slab to the bottom of the concrete structural slab to be reinforced according to claim 1 and the construction method thereof are characterized in that: the template is placed above the square timber, and the arrangement direction of the square timber is as follows: the unidirectional plate is arranged in the long span direction, and the bidirectional plate can be arranged in the X direction or the Y direction.
3. The hanging form used when adding the laminated slab to the bottom of the concrete structural slab to be reinforced according to claim 1 and the construction method thereof are characterized in that: the square timber setting interval is the distance of 3 grout holes (grout hole setting interval is 1000 mm).
4. The hanging form used when adding the laminated slab to the bottom of the concrete structural slab to be reinforced according to claim 1 and the construction method thereof are characterized in that: the square timber adopt the jib to connect, the jib passes square slab and template, the one end of jib is fixed in the square timber bottom, the other end is fixed in the concrete structure board face that needs the reinforcement.
5. The hanging form used when adding the laminated slab to the bottom of the concrete structural slab to be reinforced according to claim 1 and the construction method thereof are characterized in that: the hanger rod penetrates through a grouting hole on the surface of the concrete structure plate to be reinforced, and the length of the hanger rod is adjusted to determine the position of the template.
6. The hanging form used when adding the laminated slab to the bottom of the concrete structural slab to be reinforced according to claim 1 and the construction method thereof are characterized in that: after the template is fixed, a foaming agent is adopted to seal the splicing seams of the template and the gaps between the template and the concrete beams around the concrete structural slab to be reinforced.
7. The hanging form used when adding the laminated slab to the bottom of the concrete structural slab to be reinforced according to claim 1 and the construction method thereof are characterized in that: and after the strength of the grouting material of the template reaches the design requirement, loosening the screw at the bottom of the square timber and dismantling the template and the square timber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545658.5A CN111236681A (en) | 2018-11-29 | 2018-11-29 | Hanging die for adding laminated slab at bottom of concrete slab and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545658.5A CN111236681A (en) | 2018-11-29 | 2018-11-29 | Hanging die for adding laminated slab at bottom of concrete slab and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111236681A true CN111236681A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811545658.5A Pending CN111236681A (en) | 2018-11-29 | 2018-11-29 | Hanging die for adding laminated slab at bottom of concrete slab and construction method thereof |
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| Country | Link |
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| CN (1) | CN111236681A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482608A (en) * | 2022-02-18 | 2022-05-13 | 长沙市规划设计院有限责任公司 | Plate bottom reinforcing structure based on suspended formwork construction technology |
| CN116104296A (en) * | 2023-01-06 | 2023-05-12 | 中建八局第二建设有限公司 | Board bottom concrete reinforcement support-free turnover formwork system and construction method |
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| CN201865346U (en) * | 2010-10-26 | 2011-06-15 | 中联世纪建设集团有限公司 | Construction template structure for large-section stiff concrete beam of structure-shifting layer |
| EP2623689A1 (en) * | 2012-01-31 | 2013-08-07 | Holger Rupprecht | Wood-concrete composite structures with height compensation intermediate layer |
| CN103556820A (en) * | 2013-10-25 | 2014-02-05 | 杭州固力建筑工程有限公司 | Suspension mold for enlarging and reinforcing concrete beam and construction method of suspension mold |
| CN205025086U (en) * | 2015-08-12 | 2016-02-10 | 上海绿地建设(集团)有限公司 | Strength nature skeleton concrete beam construction suspend template in midair |
| CN107514135A (en) * | 2017-09-26 | 2017-12-26 | 中国十七冶集团有限公司 | A kind of steel reinforced concrete beam forms is without support system erecting device and its application method |
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2018
- 2018-11-29 CN CN201811545658.5A patent/CN111236681A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201865346U (en) * | 2010-10-26 | 2011-06-15 | 中联世纪建设集团有限公司 | Construction template structure for large-section stiff concrete beam of structure-shifting layer |
| EP2623689A1 (en) * | 2012-01-31 | 2013-08-07 | Holger Rupprecht | Wood-concrete composite structures with height compensation intermediate layer |
| CN103556820A (en) * | 2013-10-25 | 2014-02-05 | 杭州固力建筑工程有限公司 | Suspension mold for enlarging and reinforcing concrete beam and construction method of suspension mold |
| CN205025086U (en) * | 2015-08-12 | 2016-02-10 | 上海绿地建设(集团)有限公司 | Strength nature skeleton concrete beam construction suspend template in midair |
| CN107514135A (en) * | 2017-09-26 | 2017-12-26 | 中国十七冶集团有限公司 | A kind of steel reinforced concrete beam forms is without support system erecting device and its application method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482608A (en) * | 2022-02-18 | 2022-05-13 | 长沙市规划设计院有限责任公司 | Plate bottom reinforcing structure based on suspended formwork construction technology |
| CN114482608B (en) * | 2022-02-18 | 2024-06-21 | 长沙市规划设计院有限责任公司 | Plate bottom reinforcing structure based on hanging die construction technology |
| CN116104296A (en) * | 2023-01-06 | 2023-05-12 | 中建八局第二建设有限公司 | Board bottom concrete reinforcement support-free turnover formwork system and construction method |
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Application publication date: 20200605 |