CN115262833A - Construction method of full precast concrete floor slab of waterproof room - Google Patents
Construction method of full precast concrete floor slab of waterproof room Download PDFInfo
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- CN115262833A CN115262833A CN202210880651.9A CN202210880651A CN115262833A CN 115262833 A CN115262833 A CN 115262833A CN 202210880651 A CN202210880651 A CN 202210880651A CN 115262833 A CN115262833 A CN 115262833A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 145
- 238000010276 construction Methods 0.000 title claims abstract description 37
- 239000004567 concrete Substances 0.000 claims abstract description 89
- 230000002787 reinforcement Effects 0.000 claims abstract description 71
- 230000002093 peripheral effect Effects 0.000 claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000011065 in-situ storage Methods 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims description 25
- 238000009417 prefabrication Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000009435 building construction Methods 0.000 claims description 11
- 238000009415 formwork Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000004886 process control Methods 0.000 abstract description 2
- 238000003908 quality control method Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 206010019233 Headaches Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0025—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with installation or service material, e.g. tubes for electricity or water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
-
- 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
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a construction method of a full precast concrete floor slab of a waterproof room, which comprises the steps of prefabricating the full precast concrete floor slab in a factory by adopting an inverted construction method, wherein the full precast concrete floor slab comprises a floor slab body and a waterproof inverted ridge, preassembling required pipelines and sleeves in the full precast concrete floor slab, arranging a temporary support in the lower layer space of the waterproof room and manufacturing a steel reinforcement framework of a peripheral beam of the waterproof room on a construction site, placing the full precast concrete floor slab on the temporary support, inserting connecting steel reinforcements into the steel reinforcement framework of the peripheral beam, pouring concrete on the peripheral beam in situ, and finishing the connection and fixation of the full precast concrete floor slab with the waterproof room after the concrete is maintained to meet the requirement. The invention utilizes mature construction equipment, construction process and quality control measures of a prefabricating factory to ensure the compactness of the floor slabs of a waterproof room and the concrete of the waterproof reverse ridge, and simultaneously manufactures the floor slabs of the same room type in batches, thereby shortening the construction period of the building.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a full precast concrete floor slab of a waterproof room.
Background
The problem that water seepage of a toilet in a residential building is always a headache is that normal life of people is affected, and the maintenance of the toilet is difficult, and in fact, the risk of water seepage is not only in the toilet of the residential building, but also in any room with water pipe parts with leakage risks such as a water tap, a water pipe valve, a water pipe flange connector and the like, the risk of water seepage is considered.
In the prior art, a common construction method for rooms (waterproof rooms for short) needing water seepage prevention, such as toilets and the like, adopts in-situ concrete, and performs plate descending treatment on a room floor according to building characteristics, specifically, the method can be divided into a large plate descending form and a small plate descending form, when the large plate descending form is adopted, the structural floor of the toilet is about 300mm lower than the structural floor of a normal room, the toilet drains water by adopting the same layer, a drain pipe is horizontally laid on the structural floor of the toilet and is connected to a vertical pipeline to finish water drainage, when the small plate descending form is adopted, the drain pipe penetrates through the structural floor of the toilet, enters the toilet space of the next household, is then horizontally laid and is connected to the vertical pipeline to finish water drainage. In order to avoid the mildew and peeling of the outer wall surface caused by the permeation of damp water vapor to the outside of the room along the wall root gap after the room is used for a long time, a concrete waterproof reverse ridge with the height of about 200mm is poured upwards from the root part at the edge of the room in the pouring process of the waterproof room floor slab. The concrete quality of the cast-in-place waterproof room floor is easily influenced by construction environment and constructors, when the construction environment is poor or the constructors lack necessary technical levels, the compactness of the cast concrete floor and the waterproof reversed ridge is not high, the necessary structural self-waterproof performance of the waterproof room floor is lacked, and the leakage phenomenon can occur at the later stage.
In addition, in modern building construction, the construction period is required to be shorter and shorter, but the construction quality of the building is required to be ensured, and the construction period is influenced by pouring the waterproof room floor slab layer by layer in the field.
Disclosure of Invention
In order to solve the problem that the quality of a floor slab and a waterproof anti-ridge of a waterproof room cast in situ is easy to cause and shorten the construction period of a building, the invention provides a construction method of a full-precast concrete floor slab of the waterproof room.
The invention is realized by the following technical scheme:
a construction method of a full precast concrete floor slab of a waterproof room comprises the following construction steps: the method comprises the following steps that S1, a full precast concrete floor is precast in a factory by adopting an inverted construction method, the full precast concrete floor comprises a floor body and a waterproof inverted ridge extending upwards from the edge of the floor body, a floor internal mold, a reinforcement cage and a floor side mold are manufactured according to the design drawing of a waterproof room, the floor internal mold, the reinforcement cage and the floor side mold are sequentially arranged from bottom to top during prefabrication, the space between the floor internal mold and the floor side mold is in the shape of the full precast concrete floor, the reinforcement cage is fixed between the floor internal mold and the floor side mold, and pipelines and sleeves which need to be pre-embedded are fixed on the reinforcement cage according to the design drawing of the waterproof room; s2, pouring concrete, wherein the reinforcement cage is wrapped by the concrete and exposes the connecting reinforcements, in order to ensure that the connecting reinforcements are not wrapped by the concrete, jacks for connecting reinforcements can be arranged on the external floor formwork in advance, the connecting reinforcements are inserted into the jacks before the concrete is poured, the reinforcement cage can be fixed and the connecting reinforcements can not be wrapped by the concrete, after the concrete is condensed and meets the strength requirement, the side formwork of the floor is removed, the fully-prefabricated concrete floor is lifted and turned over by a crane, and then the internal floor formwork is removed; s3, in a building construction site, arranging temporary supports in the lower layer space of the waterproof room, completing the manufacturing of the steel reinforcement framework of the peripheral beams of the waterproof room and the erection of the templates, placing the fully-prefabricated concrete floor slab on the temporary supports, inserting the connecting steel reinforcements into the steel reinforcement framework of the peripheral beams, connecting and fixing the connecting steel reinforcements, pouring the concrete of the peripheral beams, and completing the connection of the fully-prefabricated concrete floor slab and the peripheral beams of the waterproof room after the concrete is maintained until the requirement is met.
As a further improvement of the present invention, after step S2, the following steps are further included: and S21, after the prefabrication of the fully precast concrete floor slab is finished, steam curing or water curing is carried out on the fully precast concrete floor slab finished product, so that the strength is improved, and the initial cracks of concrete are reduced.
As a further improvement of the present invention, after step S21, the following steps are further included: and S22, performing a self-waterproof test in advance before the finished product of the fully-precast concrete floor leaves the factory to ensure the quality.
As a further improvement of the present invention, when the peripheral beams are external wall structural beams: the waterproof reverse ridges corresponding to the fully-precast concrete floor slab and the outer wall structural beam in the step S1 are provided with vertically-through pouring holes during prefabrication, the thickness of the waterproof reverse ridges is consistent with the width of the outer wall structural beam, and the pouring holes can be realized by arranging vertical sleeves in a space between a floor slab side mold and a floor slab inner mold; and S3, placing the full precast concrete floor slab on the temporary support, completely covering the steel reinforcement framework of the external wall structural beam by the floor slab body, inserting the connecting steel reinforcement of the floor slab body into the steel reinforcement framework of the beam, connecting and fixing, performing concrete pouring on the external wall structural beam through a pouring hole, and finishing the connection of the full precast concrete floor slab and the peripheral beams of the waterproof room after the concrete is cured to meet the requirements.
As a further development of the invention, when said perimeter beams support two adjacent watertight rooms: the fully-precast concrete floor slab in the step S1 comprises two floor slab bodies, a waterproof reversed ridge corresponding to the fully-precast concrete floor slab and the peripheral beams is provided with a vertically through pouring hole during prefabrication, the thickness of the waterproof reversed ridge is consistent with the width of the peripheral beams, and the pouring hole can be realized by arranging a vertical sleeve in a space between a floor slab side mold and a floor slab inner mold; and S3, placing the fully-precast concrete floor slab on the temporary support, completely covering the steel reinforcement frameworks of the peripheral beams by the floor slab body, inserting the connecting steel reinforcements of the floor slab body into the steel reinforcement frameworks of the beams, connecting and fixing, performing concrete pouring on the peripheral beams through the pouring holes, and finishing the connection of the fully-precast concrete floor slab and the peripheral beams of the waterproof room after concrete is cured to meet the requirements.
As a further improvement of the invention, when said peripheral beam is an internal structural beam: the thickness of the waterproof reversed ridge corresponding to the fully precast concrete floor slab and the beam in the step S1 is smaller than the width of the peripheral beam; and step S3, the fully precast concrete floor part covers the beams, the width of the beams covered part accounts for 30-80% of the width of all the beams, connecting reinforcing steel bars of the floor body are inserted into a reinforcing steel bar framework of the beams and connected and fixed, concrete is cast on the peripheral beams in situ through the part which is not covered by the fully precast concrete floor, and after concrete is cured to meet requirements, the fully precast concrete floor of the waterproof room is connected with the peripheral beams.
As a further improvement of the invention, when the fully precast concrete floor slab is in the form of a small drop plate: in the prefabrication process of the step S1, designing an inclined slope on a floor slab internal mold, and completing floor slab slope finding while completing prefabrication of a full precast concrete floor slab of a waterproof room; and in the step S3, the beam top elevation of the beam is consistent with the slab bottom elevation of the full precast concrete floor slab.
As a further improvement of the invention, when the fully precast concrete floor slab is in the form of a large drop plate: in the step S1, the fully precast concrete floor further includes a floor side wall, one side of the floor side wall is connected to the waterproof reverse ridge, and the other side is connected to the floor body; in step S3, the elevation of the beam top of the beam is consistent with the elevation of the bottom of the waterproof inverted ridge, and the floor slab body of the fully precast concrete floor slab is embedded into a space surrounded by the steel reinforcement framework of the beam.
Meanwhile, the invention also provides a full precast concrete floor slab manufactured by the steps S1 and S2 in the content, which comprises a waterproof reverse ridge and a floor slab body.
Compared with the prior art, the invention has the beneficial effects that: the finished product quality of the fully-precast concrete floor slab of the waterproof room is improved and the manufacturing cost is reduced through mature construction equipment, construction process and quality control measures of a prefabricating factory, and meanwhile, the method conforms to the idea of modular buildings in modern buildings and shortens the construction period.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view illustrating casting of a full precast concrete floor slab in a first embodiment of a construction method of a full precast concrete floor slab for a waterproof room according to the present invention;
FIG. 2 is a schematic view illustrating the placement of a fully precast concrete floor slab in a third embodiment of a method for constructing a fully precast concrete floor slab for a waterproof room according to the present invention;
FIG. 3 is a schematic view showing the installation of a fully precast concrete floor slab in the first embodiment of the construction method of a fully precast concrete floor slab for a waterproof room according to the present invention;
FIG. 4 is a schematic view showing installation of a fully precast concrete floor slab in a third embodiment of a construction method of a fully precast concrete floor slab for a waterproof room according to the present invention;
FIG. 5 is a schematic view showing installation of a fully precast concrete floor slab in a second embodiment of a construction method of a fully precast concrete floor slab for a waterproof room according to the present invention;
FIG. 6 is a schematic view showing installation of a fully precast concrete floor slab in a fourth embodiment of a construction method of a fully precast concrete floor slab for a waterproof room according to the present invention;
fig. 7 is a schematic view showing installation of a fully precast concrete floor slab in a construction method of a fully precast concrete floor slab for a waterproof room according to a fifth embodiment of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The invention is described in further detail below by means of specific embodiments and with reference to the attached drawings.
The first embodiment:
in the embodiment, the fully-precast concrete floor 1 of the waterproof room is in a small-drop-slab form, the peripheral beam below the waterproof room is an internal structural beam, the fully-precast concrete floor 1 is precast by an inverted construction method in a prefabrication factory, the fully-precast concrete floor 1 comprises a floor body 3 and a waterproof inverted ridge 4 extending upwards from the edge of the floor body 3, corresponding floor side molds 5, a reinforcement cage 6 and a floor inner mold 7 are manufactured according to a design drawing, in order to enable the manufactured fully-precast concrete floor 1 to have a slope, a 0.5% inclined slope is designed on the floor inner mold 7 according to the design drawing, the floor inner mold 7, the reinforcement cage 6 and the floor side mold 5 are sequentially arranged from bottom to top during prefabrication, as shown in fig. 1, the space between the floor inner mold 7 and the floor side mold 5 is in the shape of the fully-precast concrete floor 1 of the embodiment, the width of the peripheral beam 2 below the waterproof room is 240mm according to the design drawing, the thickness of the waterproof inverted ridge 4 of the fully-precast concrete floor 1 is 120mm, the reinforcement cage 6 is placed in the space between the floor inner mold 7 and the floor side mold 5, the floor inner mold 6 is fixed in the space in the design according to the design, the design drawing, the concrete floor inner mold 6, the pipe is connected with the reinforcement cage 6, and the prefabricated concrete pipe is removed, and the prefabricated floor inner mold 5, and the prefabricated concrete pipe is removed, and the prefabricated floor is removed, and the prefabricated concrete pipe is hung on the floor inner mold 5, and the floor is completed concrete floor according to be embedded pipe, and the floor is completed concrete floor is completed on the floor, and the floor is completed concrete floor, and the prefabricated concrete floor is removed, the prefabricated concrete floor is completed concrete.
And after prefabrication is finished, steam curing is carried out on the finished product of the fully-prefabricated concrete floor slab 1 so as to improve the strength of concrete and reduce initial cracks of the concrete, and after steam curing is finished, a waterproof test is carried out on the finished product of the fully-prefabricated concrete floor slab 1 so as to ensure the quality of the product.
In a building construction site, temporary supports are arranged in the lower-layer space of a waterproof room, the steel bar framework manufacturing and the template supporting of the peripheral beams 2 at the bottom of the waterproof room are completed, it is to be noted that the beam top elevation of the peripheral beams 2 to be poured is finally consistent with the slab bottom elevation of the slab body 3 of the full precast concrete slab 1 of the waterproof room, the full precast concrete slab 1 is placed on the temporary supports 10, connecting steel bars 9 are inserted into the steel bar framework at the top of the peripheral beams 2, the beam 2 and the peripheral slab concrete are poured, and after the concrete is cured to meet the requirements, the connection between the full precast concrete slab 1 and the peripheral beams 2 of the waterproof room is completed, as shown in fig. 3.
Second embodiment
In this embodiment, the fully precast concrete floor 1 of the waterproof room is in the form of a small drop plate, and the outer wall structural beam 11 is arranged below one side wall of the waterproof room, the fully precast concrete floor 1 is precast by an inverted construction method in a precast factory, the fully precast concrete floor 1 includes a floor body 3 and a waterproof inverted ridge 4 extending upward from the edge of the floor body 3, the corresponding floor side mold 5, a reinforcement cage 6 and a floor inner mold 7 are manufactured according to a design drawing, in order to make the manufactured fully precast concrete floor 1 have a slope, an inclined slope of 0.5% is designed on the floor inner mold 7 according to the design drawing, the floor inner mold 7, the reinforcement cage 6 and the floor side mold 5 are sequentially arranged from bottom to top during prefabrication, the space between the floor inner mold 7 and the floor side mold 5 is the shape of the fully precast concrete floor 1 of this embodiment, the thickness of the outer wall structural beam 11 below the waterproof room according to the design drawing is 240mm, the thickness of other peripheral beams 2 is 240mm, so that the thickness of an outer wall waterproof reversed sill 12 corresponding to an outer wall structural beam 11 in the fully precast concrete floor slab 1 in the embodiment is 240mm, the thickness of other waterproof reversed sills 4 is 120mm, a reinforcement cage 6 is placed in a space between an inner floor slab mold 7 and a side floor slab mold 5, sleeves which vertically extend to the bottom are arranged on the side floor mold 5 corresponding to the position of the outer wall waterproof reversed sill 12 for keeping a pouring hole 13 in the outer wall waterproof reversed sill 12, sleeves are not required to be arranged at the positions of other waterproof reversed sills 4, pipelines and sleeves which need to be pre-embedded are fixed in the reinforcement cage 6 according to design drawings, concrete is poured, the reinforcement cage 6 is wrapped by the concrete and exposes a connecting reinforcement 9, after the concrete is condensed and meets the strength requirement, the side floor slab mold 5 is removed, and the fully precast concrete floor slab 1 is lifted and turned over by a crane, then the floor internal mold 7 is removed.
And after the prefabrication is finished, steam curing is carried out on the finished product of the fully precast concrete floor slab 1 to improve the strength of the concrete and reduce the initial cracks of the concrete, and after the steam curing is finished, a waterproof test is carried out on the finished product of the fully precast concrete floor slab 1 to ensure the quality of the product.
In a building construction site, a temporary support 10 is arranged in a lower layer space of a waterproof room, the manufacturing of the steel bar frameworks of an outer wall structural beam 11 at the bottom of the waterproof room and other peripheral beams 2 and template support are completed, it is to be noted that the beam top elevation of a beam to be poured is finally consistent with the slab bottom elevation of a floor slab body 3 of a full precast concrete floor slab 1 of the waterproof room, the full precast concrete floor slab 1 is placed on the temporary support 10 and is ensured to be placed above the outer wall structural beam 2 together with an outer wall waterproof reverse ridge 12, a connecting steel bar 9 is inserted into the steel bar frameworks at the tops of the outer wall structural beam 11 and the peripheral beams 2 and is welded and fixed, after a template is erected, concrete is poured on site on the peripheral beams 2, the outer wall structural beam 11 is poured into the outer wall structural beam 11 through a pouring hole 13 of the outer wall waterproof reverse ridge 12, as shown in fig. 5, and after concrete is cured to meet requirements, the connection and fixation of the full precast concrete floor slab 1, the outer wall structural beam 11 and the peripheral beams 2 of the waterproof room are completed.
Third embodiment
In the embodiment, the fully-precast concrete floor slab 1 of the waterproof room adopts a large drop plate form, peripheral beams below the waterproof room are internal structural beams, the fully-precast concrete floor slab 1 is precast by adopting an inverted construction method in a precast factory, the fully-precast concrete floor slab 1 comprises a floor slab body 3, a waterproof inverted sill 4 and a floor slab side wall 14, one side of the floor slab side wall 14 is connected with the waterproof inverted sill 4, the other side is connected with the floor slab body 3, corresponding floor slab side molds 5, reinforcement cages 6 and floor slab inner molds 7 are manufactured according to design drawings, the floor slab inner mold 7, the reinforcement cages 6 and the floor slab side molds 5 are sequentially arranged from bottom to top during prefabrication, as shown in figure 2, the space between the floor internal mold 7 and the floor side mold 5 is the shape of the full precast concrete floor 1 of the embodiment, the thickness of the lower beam 2 of the waterproof room according to the design drawing in the embodiment is 240mm, the thickness of the waterproof reverse sill 4 of the full precast concrete floor 1 is 120mm, the reinforcement cage 6 is placed in the space between the floor internal mold 7 and the floor side mold 5, the pipeline and the sleeve which need to be pre-embedded are fixed in the reinforcement cage 6 according to the design drawing, concrete is poured, the reinforcement cage 6 is wrapped by the concrete and exposes the connecting reinforcement 9, after the concrete is condensed and meets the strength requirement, the floor side mold 5 is removed, the full precast concrete floor 1 is lifted and turned over by a crane, and then the internal mold floor 7 is removed.
And after prefabrication is finished, steam curing is carried out on the finished product of the fully-prefabricated concrete floor slab 1 so as to improve the strength of concrete and reduce initial cracks of the concrete, and after steam curing is finished, a waterproof test is carried out on the finished product of the fully-prefabricated concrete floor slab 1 so as to ensure the quality of the product.
In a building construction site, a temporary support 10 is arranged in a lower layer space of a waterproof room, and the manufacturing of a steel bar framework and the formwork support of a peripheral beam 2 at the bottom of the waterproof room are completed, it is to be noted that the beam top elevation of the peripheral beam 2 to be poured is finally consistent with the bottom elevation of a waterproof reversed sill 4 of a full precast concrete floor slab 1 of the waterproof room, the full precast concrete floor slab 1 is placed on the temporary support 10, at the moment, a floor slab body 3 is embedded into the steel bar framework of the peripheral beam 2, a connecting steel bar 9 is inserted into the top steel bar framework of the peripheral beam 2, the beam 2 and the concrete of the peripheral floor slab are poured, as shown in fig. 4, after the concrete is maintained to meet the requirement, the connection of the full precast concrete floor slab 1 and the peripheral beam 2 of the waterproof room is completed, as shown in fig. 4.
Fourth embodiment
In this embodiment, the waterproof rooms are two adjacent rooms, the fully-precast concrete floor 1 is in a small-slab-descending form, and the peripheral beams of the waterproof rooms are all internal structural beams, the fully-precast concrete floor 1 is precast by an inverted construction method in a prefabrication factory, the fully-precast concrete floor 1 comprises a floor body 3 of the two waterproof rooms, and waterproof reversed sills 4 extending upwards from the edges and the middle of the floor body 3, wherein one shared waterproof reversed sill 15 is shared by the two waterproof rooms, corresponding floor side molds 5, reinforcement cages 6 and floor inner molds 7 are manufactured according to the design drawing, in order to enable the manufactured fully-precast concrete floor 1 to have a slope, 0.5% of an inclined slope is designed on the floor inner mold 7 according to the design drawing, the floor inner mold 7, the reinforcement cages 6 and the floor side molds 5 are sequentially arranged from bottom to top during prefabrication, the space between the floor inner mold 7 and the floor side molds 5 is in the shape of the fully-precast concrete floor 1 of this embodiment, in the embodiment, the thickness of the beams 2 below two waterproof rooms is 240mm according to the design drawing, so that the thickness of the shared waterproof reversed sill 15 in the fully-prefabricated concrete floor slab 1 is 240mm, the thickness of other waterproof reversed sills 4 is 120mm, the reinforcement cage 6 is placed in the space between the floor slab inner die 7 and the floor slab side die 5, sleeves which vertically extend to the bottom are arranged on the floor slab side die 5 corresponding to the shared waterproof reversed sill 15 for reserving the pouring holes 13 in the shared waterproof reversed sill 15, sleeves are not required to be arranged at the positions of other waterproof reversed sills 4, pipelines and sleeves which need to be pre-embedded are fixed in the reinforcement cage 6 according to the design drawing, the reinforcement cage 6 is poured, the reinforcement cage 6 is wrapped by concrete and exposes the connecting reinforcements 9, after the concrete is condensed and meets the strength requirement, the floor slab side die 5 is detached, and the fully-prefabricated concrete floor slab 1 is lifted and turned over by a crane, then the floor internal mold 7 is removed.
And after the prefabrication is finished, steam curing is carried out on the finished product of the fully precast concrete floor slab 1 to improve the strength of the concrete and reduce the initial cracks of the concrete, and after the steam curing is finished, a waterproof test is carried out on the finished product of the fully precast concrete floor slab 1 to ensure the quality of the product.
In a building construction site, temporary supports 10 are arranged in the lower-layer spaces of two waterproof rooms, the manufacturing of the steel bar frameworks and the template support of the peripheral beams 2 at the bottoms of the waterproof rooms are completed, it is to be noted that the beam top elevation of the peripheral beams 2 to be poured is finally consistent with the slab bottom elevation of a floor slab body 3 of a full-precast concrete floor slab 1 of the waterproof room, the full-precast concrete floor slab 1 is placed on the temporary supports 10, connecting steel bars 9 are inserted into the steel bar frameworks at the tops of the peripheral beams 2, concrete is poured on the beams 2 shared by the two waterproof rooms through the beams 2 below the pouring holes 13 reserved on the shared waterproof reverse sills 15, and the connection between the full-precast concrete floor slab 1 and the beams 2 of the waterproof room is completed after the concrete is cured to meet the requirements, as shown in fig. 6.
Fifth embodiment
In the embodiment, the fully-precast concrete floor slab 1 of the waterproof room is in a small drop plate form, no external wall structural beam is arranged below the waterproof room, one side wall of the waterproof room is a shear wall 16, the fully-precast concrete floor slab 1 is precast by adopting an inverted construction method in a prefabrication factory, the fully-precast concrete floor slab 1 comprises a floor slab body 3 and a waterproof inverted sill 4 extending upwards from the edge of the floor slab body 3, the waterproof inverted sill 4 structure is not manufactured at the edge of the floor slab body 3 contacted with the shear wall, a corresponding floor slab side mold 5, a steel reinforcement cage 6 and a floor slab inner mold 7 are manufactured according to a design drawing, in order to ensure that the manufactured fully-precast concrete floor slab 1 has a slope, a 0.5 percent inclined slope is designed on the floor slab inner mold 7 according to the design drawing, during prefabrication, a floor internal mold 7, a reinforcement cage 6 and a floor side mold 5 are sequentially arranged from bottom to top, the space between the floor internal mold 7 and the floor side mold 5 is the shape of a full-precast concrete floor 1 of the embodiment, the thickness of a lower beam 2 of a waterproof room according to design drawings in the embodiment is 240mm, the thickness of a waterproof inverted ridge 4 of the full-precast concrete floor 1 is 120mm, the reinforcement cage 6 is placed in the space between the floor internal mold 7 and the floor side mold 5, pipelines and sleeves needing to be embedded are fixed on the reinforcement cage 6 according to the design drawings, concrete is poured, the reinforcement cage 6 is wrapped by the concrete and exposes connecting reinforcements 9, after the concrete is condensed and meets the strength requirement, the floor removes the side mold 5, lifts and turns over the full-precast concrete floor 1 through a crane, and then removes the floor internal mold 7.
And after the prefabrication is finished, steam curing is carried out on the finished product of the fully precast concrete floor slab 1 to improve the strength of the concrete and reduce the initial cracks of the concrete, and after the steam curing is finished, a waterproof test is carried out on the finished product of the fully precast concrete floor slab 1 to ensure the quality of the product.
In a building construction site, arranging a temporary support 10 in a lower layer space of a waterproof room, then manufacturing a steel bar framework and a formwork support of a peripheral beam 2 at the bottom of the waterproof room and a shear wall 16 at the side surface of the waterproof room, paying attention to the fact that the beam top elevation of the peripheral beam 2 to be poured is finally consistent with the slab bottom elevation of a floor slab body 3 of a fully precast concrete floor slab 1 of the waterproof room, placing the fully precast concrete floor slab 1 on the temporary support 10, enabling a connecting steel bar 9 to be inserted into the steel bar framework at the top of the peripheral beam 2 and the steel bar framework of the shear wall 16 for connection, pouring concrete of the peripheral beam 2 and the shear wall 16 in situ, and maintaining the concrete until the concrete meets the requirements as shown in fig. 7, thereby completing the connection of the fully precast concrete floor slab 1 of the waterproof room with the peripheral beam 2 and the shear wall 16.
Sixth embodiment
In this embodiment, the fully precast concrete floor 1 in the waterproof room is in a large drop plate form, and an outer wall structural beam is arranged below one side wall of the waterproof room, the difference between this embodiment and the second embodiment is that, when the fully precast concrete floor 1 is precast in a precast plant, the fully precast concrete floor 1 includes a floor body 3, a waterproof reversed sill 4 and a floor side wall 14, one side of the floor side wall 14 is connected with the waterproof reversed sill 4, and the other side is connected with the floor body 3, in a building construction site, a beam top elevation of the peripheral beam 2 to be poured is finally consistent with a bottom elevation of the waterproof reversed sill 4 of the fully precast concrete floor 1 in the waterproof room, and the floor body 3 is embedded into a steel reinforcement framework of the peripheral beam, so that the connecting steel bar 9 is inserted into the steel reinforcement framework of the peripheral beam 2.
Seventh embodiment
In this embodiment, the waterproof rooms are two adjacent rooms, and the fully-precast concrete floor 1 is in a large drop plate form, and the difference between this embodiment and the third embodiment is that, when the fully-precast concrete floor 1 is precast in a precast plant, the fully-precast concrete floor 1 includes a floor body 3, a waterproof inverted sill 4, and floor side walls 14, one side of the floor side walls 14 is connected to the waterproof inverted sill 4, and the other side is connected to the floor body 3, in a building construction site, the beam top elevation of the peripheral beam 2 to be poured is finally consistent with the bottom elevation of the waterproof inverted sill 4 of the fully-precast concrete floor 1 in the waterproof room, and the floor body 3 is embedded into the steel reinforcement framework of the peripheral beam 2, so that the connecting steel bars 9 are inserted into the steel reinforcement framework of the peripheral beam 2.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the essence of the corresponding technical solutions.
Claims (9)
1. A construction method of a full precast concrete floor slab of a waterproof room is characterized by comprising the following steps:
the method comprises the following steps that S1, a full precast concrete floor is precast in a factory by adopting an inverted construction method, the full precast concrete floor comprises a floor body and a waterproof inverted ridge extending upwards from the edge of the floor body, a floor internal mold, a reinforcement cage and a floor side mold are manufactured according to the design drawing of a waterproof room, the floor internal mold, the reinforcement cage and the floor side mold are sequentially arranged from bottom to top during prefabrication, the space between the floor internal mold and the floor side mold is in the shape of the full precast concrete floor, the reinforcement cage is fixed between the floor internal mold and the floor side mold, and pipelines and sleeves which need to be pre-embedded are fixed on the reinforcement cage according to the design drawing of the waterproof room;
s2, pouring concrete, wrapping the reinforcement cage by the concrete and exposing the connecting reinforcements, removing the side formwork of the floor slab after the concrete is condensed and meets the strength requirement, lifting and overturning the full precast concrete floor slab by a crane, and then removing the inner formwork of the floor slab;
s3, in a building construction site, arranging a temporary support in the lower layer space of the waterproof room, completing the manufacturing of the steel reinforcement framework of the peripheral beam of the waterproof room and the erection of a template, placing the fully-prefabricated concrete floor slab on the temporary support, inserting the connecting steel reinforcement into the steel reinforcement framework of the peripheral beam, connecting and fixing the connecting steel reinforcement, pouring the concrete of the peripheral beam, and completing the connection of the fully-prefabricated concrete floor slab and the peripheral beam of the waterproof room after the concrete is maintained until the requirement is met.
2. A method of constructing a water-tight room of a fully precast concrete floor slab according to claim 1,
the method further comprises the following steps after the step S2:
and S21, after the prefabrication of the fully precast concrete floor slab is finished, steam curing or water curing is carried out on the fully precast concrete floor slab finished product, so that the strength is improved, and the initial cracks of concrete are reduced.
3. A method of constructing a precast concrete floor slab for a waterproof room according to claim 2, further comprising the steps of, after the step S21:
and S22, performing a self-waterproof test in advance before the finished product of the fully-precast concrete floor leaves the factory to ensure the quality.
4. A method of constructing a water-tight room of a fully precast concrete floor slab according to claim 1,
when the peripheral beam is an external wall structural beam:
the waterproof reverse sills corresponding to the fully-precast concrete floor slabs and the outer wall structural beams in the step S1 are provided with vertically-through pouring holes during prefabrication, and the thickness of each waterproof reverse sill is consistent with the width of each outer wall structural beam;
and S3, placing the full precast concrete floor slab on the temporary support, completely covering the steel reinforcement framework of the outer wall structural beam by the floor slab body, carrying out concrete pouring on the outer wall structural beam through the pouring hole, and maintaining the concrete until the concrete meets the requirement, and then completing the connection of the full precast concrete floor slab of the waterproof room and the peripheral beams.
5. A method of constructing a water-proof room all-precast concrete floor slab as claimed in claim 1,
when the perimeter beams hold two adjacent watertight rooms:
the fully-precast concrete floor slab in the step S1 comprises two floor slab bodies, a vertically-through pouring hole is formed in the fully-precast concrete floor slab and a waterproof reversed sill corresponding to the peripheral beam during prefabrication, and the thickness of the waterproof reversed sill is consistent with the width of the peripheral beam;
and S3, placing the fully-precast concrete floor slab on the temporary support, completely covering the steel reinforcement frameworks of the peripheral beams by the floor slab body, performing concrete pouring on the peripheral beams through the pouring holes, and maintaining the concrete until the concrete meets the requirement, so that the fully-precast concrete floor slab of the waterproof room is connected with the peripheral beams.
6. A method of constructing a water-proof room all-precast concrete floor slab as claimed in claim 1,
when the peripheral beam is an internal structural beam:
the thickness of the waterproof reversed ridge corresponding to the fully precast concrete floor slab and the beam in the step S1 is smaller than the width of the peripheral beam;
and step S3, the fully precast concrete floor part covers the beams, the width of the beams covered part accounts for 30-80% of the width of all the beams, connecting reinforcing steel bars of the floor body are inserted into a reinforcing steel bar framework of the beams and connected and fixed, concrete is cast on the peripheral beams in situ through the part which is not covered by the fully precast concrete floor, and after concrete is cured to meet requirements, the fully precast concrete floor of the waterproof room is connected with the peripheral beams.
7. A method of constructing a fully precast concrete floor slab for a waterproof room according to any one of claims 1 to 5, wherein when said fully precast concrete floor slab is in the form of a mini slab:
in the prefabrication process of the step S1, designing an inclined slope on a floor slab internal mold, and completing floor slab slope finding while completing prefabrication of a full precast concrete floor slab of a waterproof room;
and in the step S3, the beam top elevation of the beam is consistent with the slab bottom elevation of the full precast concrete floor slab.
8. A method of constructing a fully precast concrete floor slab for a watertight room according to any one of claims 1 to 6, wherein when said fully precast concrete floor slab is in the form of a large drop plate:
in the step S1, the full precast concrete floor slab further comprises a floor slab side wall, one side of the floor slab side wall is connected with the waterproof reverse ridge, and the other side of the floor slab side wall is connected with the floor slab body;
in step S3, the elevation of the beam top of the beam is consistent with the elevation of the bottom of the waterproof inverted ridge, and the floor slab body of the fully precast concrete floor slab is embedded into a space surrounded by the steel reinforcement framework of the beam.
9. The utility model provides a full precast concrete floor in waterproof room, includes waterproof anti-bank, floor body, its characterized in that: the fully precast concrete floor slab for a waterproof room is manufactured by the construction method of the fully precast concrete floor slab for a waterproof room S1, S2 according to any one of claims 1 to 8.
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