CN115592801A - Pouring structure of precast concrete wall with door and window structure and pouring method thereof - Google Patents
Pouring structure of precast concrete wall with door and window structure and pouring method thereof Download PDFInfo
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- CN115592801A CN115592801A CN202211268518.4A CN202211268518A CN115592801A CN 115592801 A CN115592801 A CN 115592801A CN 202211268518 A CN202211268518 A CN 202211268518A CN 115592801 A CN115592801 A CN 115592801A
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 239000011178 precast concrete Substances 0.000 title claims abstract description 55
- 238000007667 floating Methods 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 32
- 239000004567 concrete Substances 0.000 claims description 42
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 239000002023 wood Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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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
- B28B23/04—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 the elements being stressed
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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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
Abstract
The invention provides a pouring structure and a pouring method of a precast concrete wall with a door and window structure, which are used for forming the precast concrete wall with the door and window structure, the pouring structure of the precast concrete wall with the door and window structure comprises a bottom die, a side die, a reinforcing mesh and an anti-floating positioning device, the side die is fixedly arranged at the edge of the bottom die, the side die is of a closed frame structure connected end to end, the upper side surface of the bottom die and the inner side surface of the side die enclose a pouring space for forming the wall, the reinforcing mesh is laid in the pouring space, an avoiding notch is formed in the position of the reinforcing mesh, which corresponds to a door frame and/or a window frame, a plane positioning device is fixedly arranged in the upper side surface of the bottom die and the area, which corresponds to the avoiding notch, and the plane positioning device is used for limiting the plane movement of a pre-buried door frame and/or window frame in the pouring space in the process of pouring the wall; the anti-floating positioning device is used for abutting against the upper side of the embedded door frame and/or window frame so as to limit the door frame and/or window frame to float in the process of pouring the wall body.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a pouring structure of a precast concrete wall with a door and window structure and a pouring method thereof.
Background
In modern construction technology, the form of construction is many, such as traditional brick-concrete, frame and fabricated. To traditional building forms such as brick formula, frame-type, door and window reserve door and window space and bearing structure when the site operation building wall body, and this kind of form leads to the position of door and window and size to be difficult to the accuracy, and door and window frame needs the later stage to install alone fixedly simultaneously, need fill the gap at the in-process of installing door and window alone, leads to the secondary to remedy drawbacks such as fitment.
Due to the fact that special working conditions need to be built quickly, assembly type buildings are often used, and assembly of the wall bodies is usually carried out after prefabricated wall bodies are built in the assembly type buildings. Due to the thinking inertia brought by the traditional building forms such as brick mixing type and frame type, door and window holes can be reserved in the wall prefabricating process, and the door and window frames are installed after the wall is assembled.
Disclosure of Invention
The invention aims to provide a pouring structure of a precast concrete wall with a door and window structure and a pouring method thereof, so that a door frame body is accurately positioned and is simple and convenient to operate in the pre-buried pouring process.
In order to achieve the purpose, the invention provides a pouring structure of a precast concrete wall with a door and window structure, which is used for forming the precast concrete wall with the door and window structure, and comprises a bottom die, a side die, a reinforcing mesh and an anti-floating positioning device, wherein the bottom die is of a flat plate structure, the side die is fixedly arranged at the edge of the bottom die and is of a closed frame structure connected end to end, the upper side surface of the bottom die and the inner side surface of the side die enclose a pouring space for forming the wall, the reinforcing mesh is laid in the pouring space, the reinforcing mesh is provided with an avoidance notch at a position corresponding to a door frame and/or a window frame, the upper side surface of the bottom die and an area corresponding to the avoidance notch are fixedly provided with a plane positioning device, and the plane positioning device is used for limiting the plane movement of a pre-buried door frame and/or window frame in the pouring space in the process of pouring the wall; the anti-floating positioning device is used for abutting against the upper side of the embedded door frame and/or window frame so as to limit the door frame and/or window frame to float in the process of pouring the wall body.
It can be understood that if the door and window are integrally poured in the wall prefabricating process, the door and window frame body is made of a lighter material and is easy to move in the hollow cavity in the pouring process, so that the position of the door and window frame body is inaccurate, and how to ensure the accurate positioning of the door and window frame body in the pouring process and easily recycle materials is an important technical difficulty to be overcome in the technical implementation.
Compared with the prior art, the pouring structure of the precast concrete wall with the door and window structure is suitable for pouring the wall of a precast concrete house, and the door frame and/or the window frame can be fixed in the pouring space in the process of pouring the wall, so that the door frame and/or the window frame and the wall are integrally formed, the connection reliability and the sealing performance of the door and the window and the concrete wall are improved, and meanwhile, the workload of assembling the precast house in the later period is reduced. The pouring structure of the precast concrete wall with the door and window structure comprises a pouring space which is surrounded by a bottom die and a side die and is used for pouring the wall, and a door frame and/or a window frame can be positioned in the pouring space so as to prevent the door frame and/or the window frame from moving or floating in the wall pouring process. According to the pouring structure of the precast concrete wall with the door and window structure, provided by the invention, the wall with the door and window structure can be formed, the connection reliability and the sealing property of the door and the window and the concrete wall are improved, and the workload of assembling a precast house in the later period is reduced. Preferably, the plane positioning device is a positioning block, the positioning block is fixedly arranged on the upper side surface of the bottom die in a protruding manner, and the side surface of the positioning block is in contact with the inner side surface of the door frame and/or the window frame so as to limit plane movement of the embedded door frame and/or window frame in the casting space in the process of casting the wall body.
Furthermore, the precast concrete wall body is of an integrated prestressed structure; specifically, before the concrete is poured into the pouring space, a part or all of the steel bars in the steel bar mesh positioned in the pouring space are prestressed. The prestressed precast concrete wall can bear larger load in the same unit thickness, so that the precast concrete wall can be lighter and thinner, and the buoyancy borne by the doors and windows in the concrete pouring process is smaller and the door and window integrated precast concrete wall is positioned and poured to be molded more conveniently. The precast concrete wall provided by the invention can be customized and accurately precast according to the requirement, subsequent treatment is not needed, standard batch production is realized, and the labor and site material cost is greatly saved.
Preferably, at least two positioning blocks are respectively arranged along the length and width directions of the door frame and/or the window frame, and the opposite outer sides of the two positioning blocks arranged along the same length or width direction of the door frame and/or the window frame are respectively contacted with the inner side surfaces of the corresponding door frame and/or the corresponding window frame.
Preferably, the frame anti-floating positioning device comprises a pressing piece and a connecting module, the pressing piece is detachably and fixedly connected to the bottom die through the connecting module, and the pressing piece is used for pressing one side, away from the bottom die, of the door frame and/or the window frame so as to limit the door frame and/or the window frame to float in the process of pouring the wall body.
Preferably, the connecting module comprises an anti-floating seat and a bolt connecting piece, the bottom die and the anti-floating seat are both made of metal, and the anti-floating seat is welded in an area of the bottom die corresponding to the avoidance notch; the pressing piece is detachably and fixedly connected to the anti-floating seat through the bolt connecting piece.
Further, the anti-floating seat is an angle steel section, and the lower edge of the vertical edge of the angle steel section is welded on the bottom die, so that a flat plate surface which is parallel to the upper side surface of the bottom die and is arranged at intervals is formed on the upper side of the angle steel section; the flat plate surface is provided with a through hole for connecting the bolt connecting piece.
In order to achieve the above object, the present invention further provides a method for casting a precast concrete wall having a door and window structure, including the steps of: s1, horizontally arranging a bottom die in a plate-shaped structure, fixedly arranging side dies in an end-to-end closed frame structure on the edge of the bottom die, and enclosing a pouring space for forming a wall body by the upper side surface of the bottom die and the inner side surface of each side die; s2, placing the door frame and/or the window frame into the pouring space, wherein the inner side surface of the door frame and/or the window frame is in contact with the plane positioning device so as to limit the plane movement of the door frame and/or the window frame in the pouring space; s3, arranging an anti-floating positioning device, wherein the anti-floating positioning device is pressed against the upper side of the door frame and/or the window frame to limit the door frame and/or the window frame to float in the process of pouring the wall body; s4, pouring concrete into the pouring space on the outer side of the door frame and/or the window frame, wherein the door frame and/or the window frame are connected together in the concrete solidification forming process; s5, removing the anti-floating positioning device after the concrete is solidified and formed, and demolding to form the precast concrete wall with the door and window structure; before step S4, a step of laying a reinforcing mesh in the casting space is further included; and avoidance notches are arranged at the positions of the reinforcing mesh corresponding to the door frame and/or the window frame.
Further, the step of laying the reinforcing mesh is positioned after the step S2 and before the step S4, namely, the reinforcing mesh is laid and bound after the door frame and/or the window frame are placed in the pouring space; therefore, the avoiding gap of the reinforcing mesh corresponding to the position of the door frame and/or the position of the window frame does not need to be measured in advance, and the reinforcing mesh is directly laid and bound to avoid the door frame and/or the window frame in the pouring space. Preferably, the plane positioning device is a positioning block which is fixedly arranged on the upper side surface of the bottom die in a protruding manner.
Preferably, at least two positioning blocks are respectively arranged along the length and width directions of the door frame/window frame, and the opposite outer sides of the two positioning blocks arranged along the same length or width direction of the door frame and/or window frame are respectively contacted with the inner side surfaces of the corresponding door frame and/or window frame; the positioning blocks are arranged on the inner sides of the door frame/window frame, so that the pouring forming of a concrete wall body cannot be influenced in the pouring process, the relative outer sides of the two positioning blocks arranged in the direction of the same length or width are respectively contacted with the inner side surfaces of the corresponding door frame and/or window frame, the door frame/window frame is accurately positioned by the positioning blocks in the process of being placed at the expected position in the pouring space, the structure is very simple, and the positioning effect is ideal.
Preferably, before step S4, a step of coating an anti-seepage sealant between the bottom edge of the outer side of the door frame and/or the window frame and the bottom die is further included.
Compared with the prior art, the pouring method of the precast concrete wall with the door and window structure, provided by the invention, has the advantages that the door frame and/or the window frame are/is pre-embedded into the pouring space of the concrete wall in advance in the process of pouring and forming the concrete wall, so that the door frame and/or the window frame and the concrete wall are/is integrally formed, the connection reliability and the sealing property of the door and window and the concrete wall are improved, and the workload in the later period is reduced; in order to accurately pre-embed the door frame and/or the window frame into the concrete without position movement or floating in the concrete wall pouring process, the door and/or window frame is pre-positioned to the expected position in advance before the concrete is poured, and the concrete wall and the door and/or window frame connected with the concrete wall can be demoulded together after the concrete wall is poured and formed, so that the process is simple, the realization is easy, and the later assembly process of the prefabricated house is simplified.
Drawings
FIG. 1 is a top view of an embodiment of the present invention;
FIG. 2 is a side view of a partial positioning of a pre-buried frame body according to an embodiment of the present invention;
fig. 3 is a process flow diagram of the pouring method of the precast concrete wall with a door and window structure according to the present invention.
Description of the reference numerals: a bottom die 10; a planar positioning device 11; a positioning block 11a; a side mold 20; a reinforcing mesh 30; avoiding the notch 31; an anti-floating positioning device 40; a pressing member 41; a connection module 42; an anti-float seat 42a; bolt connections 42b.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
As shown in fig. 1-2, the pouring structure of the precast concrete wall with a door and window structure provided by the present invention is used for forming a precast concrete wall with a door and window structure, and includes a bottom mold 10, side molds 20, a reinforcing mesh 30 and an anti-floating positioning device 40, where the bottom mold 10 is a flat plate structure, the side molds 20 are fixedly disposed at an edge of the bottom mold 10, the side molds 20 are in an end-to-end closed frame structure, an upper side surface of the bottom mold 10 and an inner side surface of the side molds 20 enclose a pouring space for forming a wall, the reinforcing mesh 30 is laid in the pouring space, an avoiding gap 31 is disposed at a position of the reinforcing mesh 30 corresponding to a door frame and/or a window frame, a plane positioning device 11 is fixedly disposed at an area of the upper side surface of the bottom mold 10 corresponding to the avoiding gap 31, and the plane positioning device 11 is used for limiting a plane movement of a pre-buried door frame and/or a window frame in the pouring space in a process of pouring a wall; the anti-floating positioning device 40 is used for abutting against the upper side of the embedded door frame and/or window frame so as to limit the door frame and/or window frame to float in the process of pouring the wall body.
It can be understood that if the door and window frame is integrally poured in the wall prefabricating process, the door and window frame is made of lighter materials and is hollow and easy to move in the pouring process, so that the position of the door and window frame is inaccurate, and how to ensure the accurate positioning of the door and window frame in the pouring process and easily recycle materials is an improvement key point of the invention and is an important technical difficulty to be overcome in the realization of the technology.
Compared with the prior art, the pouring structure of the precast concrete wall with the door and window structure is suitable for pouring the wall of a precast concrete house, and the door frame and/or the window frame can be fixed in the pouring space in the process of pouring the wall, so that the door frame and/or the window frame and the wall are integrally formed, the connection reliability and the sealing performance of the door and the window and the concrete wall are improved, and meanwhile, the workload of assembling the precast house in the later period is reduced. The pouring structure of the precast concrete wall with the door and window structure comprises a pouring space which is formed by a bottom die 10 and side dies 20 and is used for pouring the wall, and the door frame and/or the window frame can be positioned in the pouring space so as to prevent the door frame and/or the window frame from moving or floating in the wall pouring process. According to the pouring structure of the precast concrete wall with the door and window structure, provided by the invention, the wall with the door and window structure can be formed, the connection reliability and the sealing property of the door and the window and the concrete wall are improved, and the workload of assembling a precast house in the later period is reduced.
Further, the precast concrete wall body is of an integrated prestressed structure; specifically, before the concrete is poured into the pouring space, a part or all of the reinforcing bars in the reinforcing bar net 30 located in the pouring space are prestressed. The prestressed precast concrete wall can bear larger load in the same unit thickness, so that the precast concrete wall can be lighter and thinner, and the buoyancy borne by the doors and windows in the process of pouring concrete is smaller, and the doors and windows integrated precast concrete wall is positioned and poured to form. The precast concrete wall provided by the invention can be customized and accurately precast according to the requirement, subsequent treatment is not needed, standard batch production is realized, and the labor and site material cost is greatly saved. In practice, the wall thickness of a common brick-concrete structure is usually more than 24cm, but in the precast concrete wall provided by the present invention, the thickness of the precast concrete wall can be less than 12cm due to the steel bar net 30 laid in the precast concrete wall and the prestress applied to the steel bar net 30.
Wherein, die block 10 is the steel sheet usually, and side form 20 is billet or narrower steel sheet, and the two accessible welded connection to make the more accurate of the space size of pouring of wall body, can guarantee simultaneously that non-deformable in the use repeatedly improves life, reduces use cost. Of course, in other embodiments different from the present embodiment, the side mold 20 may be a wood mold or other materials; furthermore, the side mold 20 may also be detachably and fixedly connected to the outer edge side of the bottom mold 10 through bolts or other connecting structures, so that after the wall is cast, the wall can be conveniently demolded by removing the side mold 20.
The size of the escape gap 31 provided in the reinforcing mesh 30 is larger than that of the door frame and/or the window frame to be installed, so that the door frame and/or the window frame can be easily put in, and the binding of steel wires or the welding connection can be performed between the door frame and/or the window frame and the reinforcing mesh 30 around the escape gap 31, so that the connection strength of the door frame and/or the window frame and the reinforcing mesh 30 can be further improved. Further, a certain amount of prestress can be applied to the reinforcing mesh 30 before the wall is poured, so as to improve the stress resistance of the wall.
As shown in fig. 1 and 2, the plane positioning device 11 is a positioning block 11a, the positioning block 11a is fixedly disposed on the upper side surface of the bottom mold 10 in a protruding manner, and a side surface of the positioning block 11a contacts with an inner side surface of a door frame and/or a window frame to limit plane movement of an embedded door frame and/or window frame in a casting space in a wall casting process, generally, the positioning block 11a and the bottom mold 10 are made of metal, and the connection between the positioning block 11a and the bottom mold is welding, or both the positioning block 11a and the bottom mold 10 may be made of wood, or screw connection, wherein the positioning block 11a and the door frame and/or the window frame are only in contact and are not connected, so that the door frame and/or the window frame are only limited in a plane, and cannot move, and are easily separated when the mold is removed, and the vertical degree of freedom thereof is limited by the anti-floating positioning device 40.
Furthermore, as shown in fig. 1, at least two positioning blocks 11a are respectively arranged along the length and width directions of the door frame and/or the window frame, and the relative outer sides of the two positioning blocks 11a arranged along the same length or width direction of the door frame and/or the window frame are respectively contacted with the inner side surfaces of the corresponding door frame and/or the corresponding window frame, so that the door frame and/or the window frame are positioned more accurately, two points form a line, the positioning can be accurately performed, and the phenomenon that the single-point positioning is rocked and rotates relatively to cause inaccurate positioning is avoided.
As shown in fig. 1 and 2, the frame anti-floating positioning device 40 includes a pressing member 41 and a connection module 42, the pressing member 41 is detachably and fixedly connected to the bottom mold 10 via the connection module 42, and the pressing member 41 is configured to press a side of the door frame and/or the window frame away from the bottom mold 10 so as to limit the door frame and/or the window frame from floating during the process of pouring the wall body, wherein the pressing member 41 is located on a surface of the door frame and/or the window frame and has a certain pre-tightening force, and by applying a vertical force thereto, the possibility of preventing planar movement of the door frame and/or the window frame can be further enhanced.
The connecting module 42 includes an anti-floating seat 42a and a bolt connecting piece 42b, the bottom die 10 and the anti-floating seat 42a are both made of metal, and the anti-floating seat 42a is welded in an area of the bottom die 10 corresponding to the avoidance gap 31; the pressing member 41 is detachably and fixedly connected to the anti-floating seat 42a via the bolt connection member 42b, so that the anti-floating seat 42a and the bottom die 10 are fixedly connected, and the structure is relatively small and compact, and provides a connection base for the bolt connection member 42b, thereby enabling the pressing member 41 to be stably attached and installed.
The anti-floating seat 42a is an angle steel section, and the lower edge of the vertical edge of the angle steel section is welded to the bottom die 10, so that a flat plate surface which is parallel to the upper side surface of the bottom die 10 and is arranged at intervals is formed on the upper side of the angle steel section; the flat plate surface is provided with a through hole for connecting the bolt connecting piece 42b, so that the anti-floating seat 42a has a light volume, and meanwhile, a larger mounting surface of the pressing piece 41 is provided, so that the anti-floating piece is convenient to mount, and damage caused in the process of transferring the die is also prevented.
Referring to fig. 3, the present invention further provides a method for casting a precast concrete wall with a door and window structure, including the steps of:
s1, horizontally arranging a bottom die 10 in a plate-shaped structure, fixedly arranging side dies 20 in an end-to-end closed frame structure on the edge of the bottom die 10, and enclosing a pouring space for forming a wall body by the upper side surface of the bottom die 10 and the inner side surfaces of the side dies 20;
it can be understood that, in general, the bottom die 10 and the side die 20 are made of the same material, and when the bottom die and the side die are made of the same metal material, the bottom die and the side die can be connected by welding; when the wood is adopted, the wood can be connected by screws, and can be a disposable die unit or even a lost foam; after the installation, the surface positioning device 11 is installed on the surface of the bottom die 10 according to the design requirements.
S2, placing the door frame and/or the window frame into the pouring space, wherein the inner side surface of the door frame and/or the window frame is in contact with the plane positioning device 11 so as to limit the plane movement of the door frame and/or the window frame in the pouring space;
as mentioned above, the connection of the flat positioning means 11 to the bottom mold 10 is relatively strong and fixed, and does not separate during the removal of the mold.
S3, arranging an anti-floating positioning device 40, wherein the anti-floating positioning device 40 is pressed against the upper side of the door frame and/or the window frame to limit the door frame and/or the window frame to float in the process of pouring the wall body;
s4, pouring concrete in the pouring space on the outer side of the door frame and/or the window frame, and connecting the door frame and/or the window frame together in the concrete solidification forming process;
s5, removing the anti-floating positioning device 40 after the concrete is solidified and formed, and demolding to form a precast concrete wall body with a door and window structure;
before step S4, a step of laying a reinforcing mesh 30 in the casting space is further included; the position of the reinforcing mesh 30 corresponding to the door frame and/or the window frame is provided with an avoidance gap 31.
In the preferred embodiment, the step of laying the steel bar mesh 30 is located after step S2 and before step S4, that is, after the door frame and/or the window frame are placed in the pouring space, the steel bar mesh is laid and bound; therefore, the avoiding gap 31 of the reinforcing mesh corresponding to the position of the door frame and/or the window frame does not need to be measured and reserved in advance, and the door frame and/or the window frame in the pouring space is directly avoided in the process of laying and binding the reinforcing mesh.
Further, after the lashed mesh reinforcement is laid, some or all of the reinforcing bars in the mesh reinforcement 30 are pre-stressed. The prestressed precast concrete wall can bear larger load in the same unit thickness, so that the precast concrete wall can be lighter and thinner, and the buoyancy borne by the doors and windows in the process of pouring concrete is smaller, and the doors and windows integrated precast concrete wall is positioned and poured to form. Compared with the prior art, the pouring method of the precast concrete wall with the door and window structure, provided by the invention, has the advantages that the door frame and/or the window frame are/is pre-embedded into the pouring space of the concrete wall in advance in the process of pouring and forming the concrete wall, so that the door frame and/or the window frame and the concrete wall are/is integrally formed, the connection reliability and the sealing property of the door and window and the concrete wall are improved, and the workload in the later period is reduced; in order to accurately pre-embed the door frame and/or the window frame into the concrete without position movement or floating in the concrete wall pouring process, the door and/or window frame is pre-positioned to the expected position in advance before the concrete is poured, and the concrete wall and the door and/or window frame connected with the concrete wall can be demoulded together after the concrete wall is poured and formed, so that the process is simple, the realization is easy, and the later assembly process of the prefabricated house is simplified.
The plane positioning device 11 is a positioning block 11a fixedly disposed on the upper side of the bottom mold 10 in a protruding manner.
At least two positioning blocks 11a are respectively arranged along the length and width directions of the door frame/window frame, and the relative outer sides of the two positioning blocks 11a arranged along the same length or width direction of the door frame and/or window frame are respectively contacted with the inner side surfaces of the corresponding door frame and/or window frame.
In order to prevent concrete from penetrating into the joint of the door frame and/or the window frame, before step S4, a step of coating an impermeable sealant between the outer bottom edge of the door frame and/or the window frame and the bottom mold 10 is further included, and of course, seam coating and sealing may also be performed in the manufacturing process of the door frame and/or the window frame.
While the preferred embodiments of the present invention have been illustrated and described in detail, it is not intended to limit the invention to the details shown and described, but rather, to provide those skilled in the art with a light-weight and light-weight understanding of the invention.
It should be understood that the above-described embodiments are merely exemplary of the present invention, which should not be construed as limiting the scope of the present invention.
Claims (10)
1. The utility model provides a cast structure of precast concrete wall body with door and window structure for the shaping has door and window structure's precast concrete wall body, its characterized in that: the pouring structure of the precast concrete wall body with the door and window structure comprises a bottom die, side dies, reinforcing mesh and an anti-floating positioning device, wherein the bottom die is of a flat plate structure, the side dies are fixedly arranged at the edge of the bottom die and are of a closed frame structure connected end to end, the upper side surface of the bottom die and the inner side surfaces of the side dies enclose a pouring space for forming the wall body, the reinforcing mesh is laid in the pouring space, avoidance notches are formed in the positions, corresponding to door frames and/or window frames, of the reinforcing mesh, a plane positioning device is fixedly arranged on the upper side surface of the bottom die and in an area corresponding to the avoidance notches, and the plane positioning device is used for limiting plane movement of pre-buried door frames and/or window frames in the pouring space in the wall body pouring process; the anti-floating positioning device is used for abutting against the upper side of the embedded door frame and/or window frame so as to limit the door frame and/or window frame to float in the process of pouring the wall body.
2. The cast structure of precast concrete wall with door and window structure of claim 1, wherein: the plane positioning device is a positioning block which is fixedly arranged on the upper side face of the bottom die in a protruding mode, and the side face of the positioning block is in contact with the inner side face of the door frame and/or the inner side face of the window frame so as to limit plane movement of the embedded door frame and/or the embedded window frame in a pouring space in the process of pouring a wall body.
3. The cast structure of the precast concrete wall with the door and window structure as claimed in claim 2, wherein: at least two positioning blocks are arranged along the length and width directions of the door frame and/or the window frame respectively, and the relative outer sides of the two positioning blocks arranged along the same length or width direction of the door frame and/or the window frame are respectively contacted with the inner side surfaces of the corresponding door frame and/or the corresponding window frame.
4. The cast structure of precast concrete wall with door and window structure of claim 1, wherein: the anti positioner that floats of framework includes pressing member and connection module, the pressing member via connection module detachably fixed connection in the die block, just the pressing member is used for pressing door frame and/or window frame and keeps away from one side of die block and then restriction door frame and/or window frame float at the in-process of pouring the wall body.
5. The cast structure of the precast concrete wall with the door and window structure as claimed in claim 4, wherein: the connecting module comprises an anti-floating seat and a bolt connecting piece, the bottom die and the anti-floating seat are both made of metal materials, and the anti-floating seat is welded in an area of the bottom die corresponding to the avoiding gap; the pressing piece is detachably and fixedly connected to the anti-floating seat through the bolt connecting piece.
6. The cast structure of the precast concrete wall with the door and window structure as claimed in claim 5, wherein: the anti-floating seat is an angle steel section, and the lower edge of the vertical edge of the angle steel section is welded on the bottom die, so that flat plate surfaces which are parallel to the upper side surface of the bottom die and are arranged at intervals are formed on the upper side of the angle steel section; the flat plate surface is provided with a through hole for connecting the bolt connecting piece.
7. A pouring method of a precast concrete wall with a door and window structure is characterized by comprising the following steps:
s1, horizontally arranging a bottom die in a plate-shaped structure, fixedly arranging side dies in an end-to-end closed frame structure on the edge of the bottom die, and enclosing a pouring space for forming a wall body by the upper side surface of the bottom die and the inner side surfaces of the side dies;
s2, placing the door frame and/or the window frame into the pouring space, wherein the inner side surface of the door frame and/or the window frame is in contact with the plane positioning device so as to limit the plane movement of the door frame and/or the window frame in the pouring space;
s3, arranging an anti-floating positioning device, wherein the anti-floating positioning device is pressed against the upper side of the door frame and/or the window frame to limit the door frame and/or the window frame to float in the process of pouring the wall body;
s4, pouring concrete into the pouring space on the outer side of the door frame and/or the window frame, wherein the door frame and/or the window frame are connected together in the concrete solidification forming process;
s5, removing the anti-floating positioning device after the concrete is solidified and formed, and demolding to form the precast concrete wall with the door and window structure;
before step S4, a step of laying a reinforcing mesh in the casting space is further included; and avoidance notches are arranged at the positions of the reinforcing mesh corresponding to the door frame and/or the window frame.
8. The method for casting the precast concrete wall with the door and window structure according to claim 7, wherein: the plane positioning device is a positioning block fixedly arranged on the upper side surface of the bottom die in a protruding manner.
9. The method for casting the precast concrete wall with the door and window structure according to claim 8, wherein: at least two positioning blocks are arranged along the length direction and the width direction of the door frame/window frame respectively, and the relative outer sides of the two positioning blocks arranged along the same length direction or the same width direction of the door frame and/or the window frame are respectively contacted with the inner side surfaces of the corresponding door frame and/or the corresponding window frame.
10. The method for pouring the precast concrete wall with the door and window structure according to claim 7, wherein: before the step S4, the method further comprises the step of coating impermeable sealant between the bottom die and the outer bottom edge of the door frame and/or the window frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211268518.4A CN115592801A (en) | 2022-10-17 | 2022-10-17 | Pouring structure of precast concrete wall with door and window structure and pouring method thereof |
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| CN202211268518.4A CN115592801A (en) | 2022-10-17 | 2022-10-17 | Pouring structure of precast concrete wall with door and window structure and pouring method thereof |
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