CN111469252B - Double-layer inflatable membrane concrete formwork system and construction method thereof - Google Patents
Double-layer inflatable membrane concrete formwork system and construction method thereof Download PDFInfo
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- CN111469252B CN111469252B CN202010305340.0A CN202010305340A CN111469252B CN 111469252 B CN111469252 B CN 111469252B CN 202010305340 A CN202010305340 A CN 202010305340A CN 111469252 B CN111469252 B CN 111469252B
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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
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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
- 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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- 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
- B28B7/0002—Auxiliary parts or elements of the mould
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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
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
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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
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
- B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a double-layer inflatable membrane concrete formwork system and a construction method thereof, wherein the double-layer inflatable membrane concrete formwork system comprises a concrete truss, a fixed inflatable core mould, a connecting inflatable core mould, a superposed inflatable core mould and an air pillow type membrane structure unit, wherein the fixed inflatable core mould, the connecting inflatable core mould and the superposed inflatable core mould are all filled with the air pillow type membrane structure unit; the overlapped inflatable core mold is installed on the concrete truss and connected with the concrete truss to form truss hoisting single bodies, the plurality of truss hoisting single bodies are sequentially connected through the connected inflatable core mold to form transverse soil truss units, two sides of each transverse soil truss unit are connected with the fixed inflatable core mold, and the plurality of transverse soil truss units are longitudinally stacked and poured through the waterproof layer to form the precast concrete beam. The invention has an inner and outer double-layer inflatable membrane structure, plays a role in double supporting and forming the concrete template and enhances the rigidity of the concrete template.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a double-layer inflatable membrane concrete formwork system and a construction method thereof.
Background
The inflatable core film is used as a concrete template product, the main product at present is an inflatable rubber core film, the inflatable rubber core film is mainly applied to the fields of hollow slabs, box girders and the like, and the inflatable rubber core film fully embodies the advantages of labor saving and time saving. By means of the advantages of high industrialization degree, convenient transportation, rapid formwork erecting and the like of the inflatable membrane concrete formwork, the inflatable membrane concrete formwork has the main potential of being applied to prefabricated assembled buildings on site. The main implementation method is to arrange a concrete member prefabricated site on a construction site, wherein the prefabricated site is arranged in the operation range of large-scale hoisting equipment as much as possible. After the air inflation film template and the reinforcement cage which are produced in an industrialized mode are transported to a prefabricated site, template air inflation, reinforcement cage assembly, reinforcement cage hoisting and concrete pouring are sequentially carried out, a concrete member is hoisted again after the concrete reaches the strength, and assembly type construction is completed.
The existing air film formwork supporting structure is complex, the concrete member is hollowed into a concrete truss, extra formwork supporting cost is required to be invested to effectively reduce the dead weight of concrete, the existing air film formwork supporting structure is not beneficial to large-size hoisting and assembly type construction, the existing concrete aerated concrete formwork is insufficient in rigidity, and the forming effect is poor.
Disclosure of Invention
The invention aims to provide a double-layer inflatable membrane concrete formwork and a construction method thereof, which have an inner-layer and outer-layer inflatable membrane structure, play a role in double supporting and forming of the concrete formwork, enhance the rigidity of the concrete formwork and solve the problems in the background art.
The purpose of the invention is realized by the following technical scheme:
a double-layer inflatable film concrete template system comprises a concrete truss, a fixed inflatable core mold, a connecting inflatable core mold, a superposed inflatable core mold and an air pillow type film structure unit, wherein the fixed inflatable core mold, the connecting inflatable core mold and the superposed inflatable core mold are all filled with the air pillow type film structure unit;
the stacking inflatable core mold is installed on the concrete truss and connected with the concrete truss to form truss hoisting monomers, the truss hoisting monomers are connected in sequence through the connecting inflatable core mold to form transverse soil truss units, the two sides of each transverse soil truss unit are connected with the fixed inflatable core mold, and the transverse soil truss units are longitudinally stacked and poured through waterproof layers to form precast concrete beams.
Further, air pillow formula membrane constitutional unit includes inner layer membrane and outer membrane, the inner layer membrane includes two at least cylinder type rubber gas posts, connects through ventilative diaphragm between the adjacent cylinder type rubber gas post and constitutes the inner layer membrane, outer membrane parcel is in on the inner layer membrane, be equipped with a plurality of gasbags on the inner wall of outer membrane.
Further, the concrete truss includes that steel reinforcement cage, tip aerify the mandrel and the mandrel is aerifyd at the middle part, the mandrel is aerifyd at the middle part arrange in on the crossbeam of I shape steel reinforcement cage, the mandrel is aerifyd at the tip arrange in the crossbeam tip of I shape steel reinforcement cage, the mandrel is aerifyd at the tip and the middle part all is filled in aerifing the mandrel and has the air pillow formula membrane constitutional unit.
Further, the steel reinforcement cage is I-shaped steel reinforcement cage, the support mandrel is installed to the bottom of the steel reinforcement cage of horizontal soil truss unit, it has air pillow formula membrane constitutional unit to fill in the support mandrel, install H shaped steel supporting part between adjacent fixed inflation mandrel, support mandrel and the connection inflation mandrel.
Further, the reinforcement cage is a box-type reinforcement cage.
Furthermore, the air pillow type membrane structure unit in the end inflation core mold is formed by mutually laminating and connecting 5 cylindrical rubber air columns to form an acute angle triangular inner membrane unit, and the outer membrane is wrapped on the acute angle triangular inner membrane unit.
The air pillow type membrane structure unit in the middle inflatable core mold is formed by mutually laminating and connecting 4 cylindrical rubber air columns to form an isosceles triangle inner membrane unit, and the outer membrane is wrapped in the isosceles triangle inner membrane unit.
Furthermore, the fixed inflatable core mold is formed by longitudinally laminating and connecting 2 cylindrical rubber air columns to form a rectangular inner membrane unit, and the air-permeable membranes of the rectangular inner membrane unit are horizontally distributed;
the connecting inflatable core mold is formed by transversely arranging two groups of rectangular inner film units to form a square inner film unit.
Further, the overlapped inflatable core mold and the supporting core mold are connected in a transverse stacking mode through 2 cylindrical rubber air columns to form a polygonal inner membrane unit, and the air-permeable membranes of the polygonal inner membrane unit are vertically distributed.
Further, the core mould is aerifyd in stack constitutes square inner membrance unit by 4 cylinder type rubber gas columns range upon range of connection, the connecting wire of the ventilative diaphragm of square inner membrance unit is vertical distribution.
A construction method of a double-layer inflatable membrane concrete formwork system comprises the following steps:
s1, preparing installation accessories: prefabricating a fixed inflatable core mould, a connecting inflatable core mould, a superposed inflatable core mould, an end inflatable core mould, a middle inflatable core mould, a support core mould and a reinforcement cage in advance, and transporting to a prefabrication site, wherein if an I-shaped truss girder is prefabricated, the step S2 is performed, and if a box-shaped truss girder is prefabricated, the step S3 is performed;
s2, assembling a bottom support: assembling the fixed inflatable core mold, the support core mold, the connecting inflatable core mold and the H-shaped steel support part and inflating the air pillow type membrane structure unit to form a bottom support;
s3, assembling truss hoisting monomers: assembling the superposed inflatable core mold, the reinforcement cage, the end inflatable core mold and the middle inflatable core mold and inflating the air pillow type film structure unit to form a truss hoisting monomer;
s4, casting a transverse soil truss: connecting the truss hoisting monomer and the connecting inflatable core mold into a transverse soil truss unit, installing and fixing the inflatable core mold at two ends of the transverse soil truss unit to form a poured transverse soil truss, pouring concrete and paving a waterproof layer;
s5, repeating the steps S3 and S4 until all concrete beams are poured;
s6, air-release drawing die: and after the concrete reaches the form removal strength, deflating and extracting the air pillow type membrane structure unit to complete the assembly type construction.
The invention has the beneficial effects that:
1) the double-layer inflatable film concrete template system mainly comprises components, wherein air pillow type film structure units are filled in a fixed inflatable core mold, a connecting inflatable core mold and a superposed inflatable core mold, the air pillow type film structure units can play double supporting and forming roles on the whole concrete template system, the dead weight can be reduced, and the rigidity of the concrete template can be enhanced.
Specifically, the inner layer membrane of the air pillow type membrane structure unit is formed by rubber air columns intersected with a plurality of cylinders, the intersected parts of the adjacent cylinder rubber air columns are breathable membranes, the surfaces of the inner layer membranes are wrapped, a plurality of air bags are arranged on the inner walls of the outer layer membranes, after the inner layer membranes are inflated and expanded, the outer layer membranes are in a tightening state, the air bags are inflated to enable the inner walls of the air bags to expand inwards, the air pillow type membrane structure can be formed, effective support is provided for concrete which does not reach strength, the air bags are inflated to be used for decorating the appearance of the concrete member or constructing special-shaped holes or nodes, wet concrete can be further supported, and the double support effect is achieved.
2) According to the construction method of the double-layer inflatable membrane concrete formwork system, the transverse soil truss unit and the fixed inflatable core mould are connected to form a single-layer formwork, and the formworks of all layers can be stacked and hoisted in multiple layers, so that large-volume hoisting and assembly type construction are facilitated; the concrete member can be fully hollowed into a concrete truss under the condition of not increasing the formwork supporting cost, so that the self weight of concrete is effectively reduced, a more complex concrete structure can be constructed, and large-volume hoisting and assembly type construction are facilitated. Meanwhile, the hollowed concrete truss is more convenient for the alternate arrangement of pipelines in the building, fully reduces the field labor input, has the advantages of shortening the construction period and simplifying the construction management, and can be widely applied to building engineering, municipal engineering, roads and railway engineering.
Drawings
FIG. 1 is a schematic cross-sectional view of a schematic of a two-layer aerated film concrete formwork system of the present invention;
fig. 2 is a schematic view of the overall structure of an i-shaped truss girder inflatable formwork according to embodiment 1 of the present invention;
fig. 3 is a schematic cross-sectional structure view of an i-shaped truss girder according to embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a schematic structural view of a truss hoisting unit of the present invention;
fig. 6 is a schematic cross-sectional structure of a stacked inflated core mold according to example 1 of the present invention;
figure 7 is a schematic cross-sectional view of the support core of the present invention;
fig. 8 is a schematic cross-sectional view of the present invention showing the construction of the inflatable mandrel;
fig. 9 is a schematic cross-sectional view of the fixed inflatable mandrel of the present invention;
fig. 10 is a schematic cross-sectional view of an end and middle inflated core of the present invention;
fig. 11 is a schematic view of the overall structure of the box-type truss girder inflatable formwork according to embodiment 2 of the present invention;
FIG. 12 is a schematic cross-sectional view of the box girder of the present invention;
fig. 13 is a schematic cross-sectional view of the stacked inflated core mold of example 2 of the present invention;
in the figure, 1-concrete truss, 101-reinforcement cage, 2-fixed inflatable core mold, 3-connecting inflatable core mold, 4-stacked inflatable core mold, 5-air pillow type membrane structure unit, 501-cylindrical rubber air column, 502-air permeable membrane, 503-air bag, 6-truss hoisting monomer, 7-transverse soil truss unit, 8-waterproof layer, 9-end inflatable core mold, 10-middle inflatable core mold, 11-supporting core mold, 12-H-shaped steel supporting part and 13-concrete cushion block.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should 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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
Referring to fig. 1-13, the present invention provides a technical solution:
example 1
Referring to fig. 2, a double-layer inflatable film concrete formwork system comprises a concrete truss 1, a fixed inflatable core mold 2, a connecting inflatable core mold 3, a superposed inflatable core mold 4 and an air pillow type film structural unit 5, wherein the fixed inflatable core mold 2, the connecting inflatable core mold 3 and the superposed inflatable core mold 4 are all filled with the air pillow type film structural unit 5;
the overlapped inflatable core mould 4 is installed on the concrete truss 1 and connected to form a truss hoisting monomer 6, the truss hoisting monomer 6 is connected in sequence through the connected inflatable core mould 3 to form a transverse soil truss unit 7, two sides of the transverse soil truss unit 7 are connected with the fixed inflatable core mould 2, and the transverse soil truss unit 7 is vertically stacked and poured through a waterproof layer 8 to form a precast concrete beam.
The double-layer inflatable film concrete template system mainly comprises components, wherein a fixed inflatable core mold 2, a connecting inflatable core mold 3 and a superposed inflatable core mold 4 are all filled with an air pillow type film structure unit 5, and the air pillow type film structure unit 5 can play a role in supporting and forming the whole concrete template body system, so that the self weight can be reduced, and the rigidity of the concrete template can be enhanced; the transverse soil truss unit 7 is connected with the fixed inflatable core mold 2 to form a single-layer template, and the templates of all layers can be stacked and hoisted in multiple layers, so that large-volume hoisting and assembly type construction can be conveniently implemented.
Referring to fig. 1, the air pillow type membrane structure unit 5 includes an inner layer membrane and an outer layer membrane, the inner layer membrane includes at least two cylindrical rubber air columns 501, adjacent cylindrical rubber air columns 501 are connected through a breathable membrane 502 to form the inner layer membrane, the outer layer membrane wraps the inner layer membrane, and a plurality of air bags 503 are disposed on an inner wall of the outer layer membrane.
The shape of the inner layer film of the air pillow type film structure unit 5 is the shape formed by a plurality of cylinders intersected rubber air columns, the specific shape of the air pillow type film structure unit can be customized according to engineering requirements, the intersected part of the adjacent cylinder rubber air columns is the air permeable diaphragm 502, the outer layer film is made of fiber materials or plastics and wraps the surface of the inner layer film, the inner wall of the outer layer film is provided with a plurality of air bags 503, after the inner layer film is inflated and expanded, the outer layer film is in a tightening state, the air bags 503 are inflated to enable the inner wall to expand inwards, an air pillow type film structure can be formed, effective support is provided for concrete which does not reach strength, the inflated air bags 503 can be used for decoration on the appearance of a concrete member or construction of special-shaped holes or nodes, wet concrete can be further supported, and the double support effect is achieved.
The air pillow type membrane structure unit 5 and the concrete truss 1 are supported in a reinforcing mode through a concrete cushion block 13.
Referring to fig. 4, the concrete truss 1 includes a reinforcement cage 101, an end inflation core mold 9 and a middle inflation core mold 10, the middle inflation core mold 10 is disposed on a cross beam of the i-shaped reinforcement cage 101, the end inflation core mold 9 is disposed at an end portion of the cross beam of the i-shaped reinforcement cage 101, and both the end inflation core mold 9 and the middle inflation core mold 10 are filled with air pillow type film structure units 5.
Referring to fig. 3, the reinforcement cage 101 is an i-shaped reinforcement cage 101, the truss hoisting unit 6 has a structure as shown in fig. 5, a support core mold 11 is installed at the bottom of the reinforcement cage 101 of the transverse soil truss unit 7, an air pillow type membrane structural unit 5 is filled in the support core mold 11, and an H-shaped steel support portion 12 is installed between the adjacent fixed inflation core mold 2, the support core mold 11 and the connecting inflation core mold 3.
The H-shaped steel supporting part 12 is an H-shaped steel support and can play a role in supporting the transverse soil truss unit 7.
Referring to fig. 10, the air pillow type membrane structure unit 5 in the end inflation core mold 9 is formed by stacking and connecting 5 cylindrical rubber air columns 501 to form an acute angle triangular inner membrane unit, and the outer membrane is wrapped in the acute angle triangular inner membrane unit.
The air pillow type membrane structure unit 5 in the middle inflatable core mold 10 is formed by mutually laminating and connecting 4 cylindrical rubber air columns 501 to form an isosceles triangle inner membrane unit, and the outer membrane is wrapped on the isosceles triangle inner membrane unit.
Referring to fig. 6 to 7, the overlapped inflated core mold 4 and the support core mold 11 are formed by horizontally stacking and connecting 2 cylindrical rubber air columns 501 to form a polygonal inner membrane unit, and the air permeable membranes 502 of the polygonal inner membrane unit are vertically distributed.
Referring to fig. 8, the connecting inflatable core mold 3 is formed by two sets of the rectangular inner membrane units arranged in the transverse direction to form a square inner membrane unit.
Referring to fig. 9, the fixed inflatable core mold 2 is formed by longitudinally laminating and connecting 2 cylindrical rubber air columns 501 to form a rectangular inner membrane unit, and the air permeable membranes 502 of the rectangular inner membrane unit are horizontally distributed;
example 2
Referring to fig. 11 to 12, embodiment 2 is different from embodiment 1 in that the reinforcement cage 101 is a box-shaped reinforcement cage 101.
Referring to fig. 13, the stacked inflatable core mold 4 is formed by stacking and connecting 4 cylindrical rubber air columns 501 to form a square inner membrane unit, and connecting lines of the air permeable membranes 502 of the square inner membrane unit are vertically distributed.
A construction method of a double-layer inflatable membrane concrete formwork system comprises the following steps:
s1, preparing installation accessories: prefabricating a fixed inflatable core mould 2, a connecting inflatable core mould 3, a superposed inflatable core mould 4, an end inflatable core mould 9, a middle inflatable core mould 10, a support core mould 11 and a reinforcement cage 101 in advance, and transporting to a prefabrication site, wherein if an I-shaped truss girder is prefabricated, the step S2 is performed, and if a box-shaped truss girder is prefabricated, the step S3 is performed;
s2, assembling a bottom support: assembling the fixed inflatable core mold 2, the support core mold 11, the connecting inflatable core mold 3 and the H-shaped steel support part 12 and inflating the air pillow type membrane structure unit 5 to form a bottom support;
s3, assembling truss hoisting monomers 6: assembling the superposed inflatable core mold 4, the reinforcement cage 101, the end inflatable core mold 9 and the middle inflatable core mold 10 and inflating the air pillow type film structure unit 5 to form a truss hoisting monomer 6;
the reinforcement cage 101 is placed on its side and stacked on top of each other in a prefabricated site, as shown in fig. 3 and 12. By the mode, the inflatable membrane template can bear small force, the main bearing system before the concrete reaches the specified strength is the reinforcement cage 101, the wing plates of the reinforcement cage 101 after side erection are vertically erected, and the web plates are horizontally arranged, so that the self weight of the reinforcement cage 101 is basically borne by the reinforcement cage 101, and the inflatable membrane template only bears the vertical pressure and the side pressure caused by the wet weight of the concrete and transmits the vertical pressure and the side pressure to a structure supporting the inflatable membrane template at the bottom.
S4, casting a transverse soil truss: connecting the truss hoisting single bodies 6 and the connecting inflatable core molds 3 into a transverse soil truss unit 7, installing and fixing the inflatable core molds 2 at two ends of the transverse soil truss unit 7 to form a poured transverse soil truss, pouring concrete and paving a waterproof layer 8;
concrete is poured once when each layer is hoisted, the waterproof layer 8 laid between layers is made of waterproof coiled materials, and the two sides of each waterproof coiled material are closely attached with plastic woven cushions to serve as reinforcing steel bar protective layer cushions for isolating adjacent concrete beams.
S5, repeating the steps S3 and S4 until all concrete beams are poured;
s6, air-release drawing die: and after the concrete reaches the form removal strength, deflating and extracting the air pillow type membrane structure unit 5 to complete the assembly type construction.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a membrane concrete form system is aerifyd to bilayer which characterized in that: the concrete inflatable core mold structure comprises a concrete truss (1), a fixed inflatable core mold (2), a connecting inflatable core mold (3), a superposed inflatable core mold (4) and an air pillow type membrane structure unit (5), wherein the fixed inflatable core mold (2), the connecting inflatable core mold (3) and the superposed inflatable core mold (4) are all filled with the air pillow type membrane structure unit (5);
the superposed inflatable core mould (4) is installed on the concrete truss (1) and connected to form truss hoisting single bodies (6), a plurality of truss hoisting single bodies (6) are sequentially connected through the connected inflatable core mould (3) to form a transverse soil truss unit (7), two sides of the transverse soil truss unit (7) are connected with the fixed inflatable core mould (2), and a plurality of transverse soil truss units (7) are longitudinally stacked and poured through a waterproof layer (8) to form a precast concrete beam;
the concrete truss (1) comprises a reinforcement cage (101), an end inflation core mold (9) and a middle inflation core mold (10), the middle inflation core mold (10) is arranged on a cross beam of the reinforcement cage (101), the end inflation core mold (9) is arranged at the end part of the cross beam of the reinforcement cage (101), and air pillow type film structure units (5) are filled in the end inflation core mold (9) and the middle inflation core mold (10);
air pillow formula membrane constitutional unit (5) include interior tunic and outer tunic, the interior tunic includes two at least cylinder type rubber gas columns (501), connects through ventilative diaphragm (502) between adjacent cylinder type rubber gas column (501) and constitutes the interior tunic, outer tunic parcel is in on the interior tunic, be equipped with a plurality of gasbags (503) on the inner wall of outer tunic.
2. The double-layer aerated film concrete formwork system according to claim 1, wherein: reinforcement cage (101) are I-shaped reinforcement cage (101), support mandrel (11) are installed to the bottom of reinforcement cage (101) of horizontal soil truss unit (7), it has air pillow formula membrane constitutional unit (5) to support to fill in mandrel (11), adjacent fixed aerify mandrel (2), support mandrel (11) and connect and aerify and install H shaped steel supporting part (12) between mandrel (3).
3. The double-layer aerated film concrete formwork system according to claim 1, wherein: the reinforcement cage (101) is a box-type reinforcement cage (101).
4. The double-layer aerated film concrete formwork system according to claim 1, wherein: the air pillow type membrane structure unit (5) in the end inflatable core mould (9) is formed by mutually laminating and connecting 5 cylindrical rubber air columns (501) to form an acute angle triangular inner membrane unit, and the outer membrane is wrapped in the acute angle triangular inner membrane unit;
the air pillow type membrane structure unit (5) in the middle inflatable core mold (10) is formed by mutually laminating and connecting 4 cylindrical rubber air columns (501) to form an isosceles triangle inner membrane unit, and the outer membrane is wrapped in the isosceles triangle inner membrane unit.
5. The double-layer aerated film concrete formwork system according to claim 1, wherein: the fixed inflatable core mold (2) is formed by longitudinally laminating and connecting 2 cylindrical rubber air columns (501) to form a rectangular inner membrane unit, and the air-permeable membranes (502) of the rectangular inner membrane unit are horizontally distributed;
the connecting inflatable core mold (3) is formed by transversely arranging two groups of rectangular inner membrane units to form a square inner membrane unit.
6. The double-layer aerated film concrete formwork system according to claim 2, wherein: the overlapped inflatable core mold (4) and the supporting core mold (11) are connected by 2 cylindrical rubber air columns (501) in a transverse stacking mode to form a polygonal inner membrane unit, and the air-permeable membranes (502) of the polygonal inner membrane unit are vertically distributed.
7. The double layer aerated film concrete formwork system of claim 3, wherein: the overlapped inflation core mold (4) is formed by stacking and connecting 4 cylindrical rubber air columns (501) to form a square inner membrane unit, and connecting lines of air-permeable membranes (502) of the square inner membrane unit are vertically distributed.
8. A method of constructing a double layer aerated concrete formwork system according to any one of claims 1 to 7, comprising the steps of:
s1, preparing installation accessories: prefabricating a fixed inflatable core mould (2), a connecting inflatable core mould (3), a superposed inflatable core mould (4), an end inflatable core mould (9), a middle inflatable core mould (10), a support core mould (11) and a reinforcement cage (101) in advance, and transporting to a prefabricating site, wherein if an I-shaped truss girder is prefabricated, the step S2 is performed, and if a box-shaped truss girder is prefabricated, the step S3 is performed;
s2, assembling a bottom support: assembling a fixed inflatable core mould (2), a support core mould (11), a connecting inflatable core mould (3) and an H-shaped steel support part (12) and inflating an air pillow type membrane structure unit (5) to form a bottom support;
s3, assembling truss hoisting monomers (6): assembling the superposed inflatable core mold (4), the reinforcement cage (101), the end inflatable core mold (9) and the middle inflatable core mold (10) and inflating the air pillow type film structure unit (5) to form a truss hoisting monomer (6);
s4, casting a transverse soil truss: connecting a truss hoisting monomer (6) and a connecting inflatable core mold (3) into a transverse soil truss unit (7), installing and fixing inflatable core molds (2) at two ends of the transverse soil truss unit (7) to form a poured transverse soil truss, pouring concrete and paving a waterproof layer (8);
s5, repeating the steps S3 and S4 until all concrete beams are poured;
s6, air-release drawing die: and after the concrete reaches the form removal strength, deflating and extracting the air pillow type membrane structure unit (5) to complete the assembly type construction.
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| CN1266137A (en) * | 1999-09-11 | 2000-09-13 | 任松 | Air bag form for building |
| CN101823289A (en) * | 2010-03-23 | 2010-09-08 | 江苏扬州合力橡胶制品有限公司 | Rubber mandrel |
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| CN111469252A (en) | 2020-07-31 |
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