CN210316194U - Cavity-free composite wall structure for assembly type building - Google Patents
Cavity-free composite wall structure for assembly type building Download PDFInfo
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- CN210316194U CN210316194U CN201920613349.0U CN201920613349U CN210316194U CN 210316194 U CN210316194 U CN 210316194U CN 201920613349 U CN201920613349 U CN 201920613349U CN 210316194 U CN210316194 U CN 210316194U
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Abstract
The utility model belongs to the technical field of the building, concretely relates to assembled building is with no cavity composite wall structure, including the concrete layer, the concrete layer lateral surface is equipped with the heat preservation, and the concrete layer is connected fixedly through a plurality of connecting pieces with the heat preservation, and the heat preservation outside is equipped with outer inoxidizing coating, and the concrete layer medial surface is equipped with interior inoxidizing coating; a cavity supported by an I-shaped limiting structure is arranged between the heat preservation layer and the outer protective layer, and a heat preservation transition layer is poured in the cavity; the outer protective layer, the heat preservation transition layer, the heat preservation layer, the concrete layer and the inner protective layer are sequentially arranged from outside to inside and are fixedly connected through a plurality of clamping structures penetrating through the outer protective layer, the heat preservation transition layer, the heat preservation layer, the concrete layer and the inner protective layer. The utility model discloses an assembly type is no cavity composite wall structure for building need not the template when self-compaction lightweight aggregate concrete placement, reduced the process of making level in the traditional technology, structural stability is strong, can satisfy energy-conserving and fire prevention requirement simultaneously, has realized with building structure with the life-span.
Description
Technical Field
The utility model relates to an assembled building is with no cavity composite wall structure belongs to building technical field.
Background
As the building energy-saving standard of northern areas is respectively improved to 65-75 percent, higher requirements are provided for wall body heat preservation, the traditional polystyrene heat-preservation material usually needs 12-15 cm to meet the energy-saving requirement, but the new fire-protection standard strictly limits the fire-protection grade of the heat-preservation material, in order to meet the energy-saving and fire-protection requirements at the same time, some modified heat-preservation materials are used in the outer wall heat-preservation engineering, but due to the defects of easy pulverization of the surface, low strength and the like, when the modified heat-preservation material is used in the outer wall heat-preservation engineering, the problems of hollowing, cracking and the like are easy to occur due to the reasons of low strength, large volume, poor bonding and the like of the heat-preservation material, even the safety accident that the whole heat-preservation system falls off is generated, the building performance is seriously reduced, and larger.
In recent years, in order to improve the quality of building energy-saving engineering and solve the common problem of the traditional external thermal insulation quality of an external wall, a great number of researches and engineering practices are made by experts and scholars and thermal insulation material production enterprises, and building energy-saving and structure integration technologies and products are generated under the background. However, with the application in engineering, some problems are also exposed. For example, although the traditional external formwork cast-in-place concrete heat preservation system can replace the traditional formwork, the inner side of the wall still needs to be provided with the formwork, and due to the influence of the quality of workers, a large amount of time is needed in the process of binding the external formwork with reinforcing steel bars, the construction period is prolonged by 1-2 days compared with that of each layer of the traditional construction mode, the construction period is prolonged, the construction and management cost is increased, in addition, the external formwork is easy to warp, the problem of slurry leakage at the plate seams during the splicing of the external formwork is easy to occur, and adverse influence is brought to the procedures of leveling and facing in the later period. In addition, the steel wire mesh frame plate system is in the concrete pouring process, the steel wire mesh sheet is not easy to fix, and the middle abdominal wires are equivalent to cold and hot bridges, so that the energy-saving effect of the whole wall body is reduced. Therefore, the development of the heat-insulating material which has the same service life as the building structure and can be constructed synchronously and solve the problems has important practical significance for improving the quality of the building engineering.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: overcomes the defects of the traditional external heat preservation, building energy conservation and structure integration technology and products, and provides a cavity-free composite wall structure which has good heat preservation effect, short construction period and no need of templates and leveling layers and is suitable for assembly type buildings.
The cavity-free composite wall structure for the prefabricated building comprises a concrete layer, wherein the outer side surface of the concrete layer is provided with a heat preservation layer, the concrete layer and the heat preservation layer are fixedly connected through a plurality of connecting pieces, an outer protection layer is arranged on the outer side of the heat preservation layer, and an inner protection layer is arranged on the inner side surface of the concrete layer; a cavity supported by an I-shaped limiting structure is arranged between the heat preservation layer and the outer protective layer, and a heat preservation transition layer is poured in the cavity; the outer protective layer, the heat preservation transition layer, the heat preservation layer, the concrete layer and the inner protective layer are sequentially arranged from outside to inside and are fixedly connected through a plurality of clamping structures penetrating through the outer protective layer, the heat preservation transition layer, the heat preservation layer, the concrete layer and the inner protective layer.
The concrete layer is put into to connecting piece one end, the one end of putting into concrete layer is provided with circular chuck through threaded connection, before concrete layer pours, be equipped with the one end of circular chuck on the connecting piece and concrete layer's reinforcing bar ligature together, can strengthen the cohesion between heat preservation and the concrete layer, improve composite wall's structural safety nature. The other end is provided with a cross-shaped chuck which is fixed on the outer side of the heat-insulating layer to realize the limit fixation of the heat-insulating layer.
Preferably, the diameter of the connecting piece is 20mm-35mm, the diameter of the circular chuck and the cross-shaped chuck is 40 mm-60 mm, and the thickness of the connecting piece is 10 mm-25 mm.
The utility model discloses a composite wall structure, including screens structure, the cylindrical hollow structure of inoxidizing coating, screens structure one end be equipped with the hexagon fastener, in the circular slot of outer inoxidizing coating of interior embedding, the other end is for having the cylindrical hollow structure of internal thread structure, through cross flower type screw rod screw in cylindrical hollow structure, connect into no cavity composite wall structure with outer inoxidizing coating, heat preservation transition layer, heat preservation, concrete layer and interior inoxidizing coating. Before concrete layer pours, tie up inside and outside inoxidizing coating and heat preservation and reinforcing bar together through the screens structure, can improve concrete layer and pour the stability of in-process, improve construction quality.
Preferably, the middle of the clamping structure is a cylindrical connecting rod, the diameter of the cylindrical connecting rod is 20-30 mm, the side length of the hexagonal clamping piece is 10-15 mm, the diameter of the cross-shaped screw rod is 10-15 mm, and the length of the cross-shaped screw rod is 30-60 mm.
The concrete layer is self-compacting lightweight aggregate concrete which comprises cement, lightweight aggregate and sand, and the reference number is C30-C50.
The heat-insulating layer can adopt a volume weight of 22km/m3-30km/m3The modified polystyrene foam plate-shaped structure with the thermal conductivity coefficient of 0.028W/(m.K) -0.032W/(m.K) can also be adopted, and the volume weight can also be 25km/m3-35km/m3The thermal conductivity coefficient is 0.021W/(m.K) -0.025W/(m.K), and the thickness of the heat-insulating layer is preferably 8-15 cm.
The outer protective layer and the inner protective layer are of a silicon-calcium plate-shaped structure containing inorganic fibers inside, and the thickness of the silicon-calcium plate-shaped structure can be designed to be 5mm-10 mm. The protective layer is respectively positioned on the outer side (outer protective layer) and the inner side (inner protective layer) of the composite wall body, can replace a template in the traditional construction process, and can directly scrape putty and make a decorative surface on the protective layer after the wall body is poured, so that the leveling procedure is saved, and the construction cost is reduced. Circular grooves matched with the cross-shaped screw rods and the hexagonal clamping pieces are formed in the side faces of the protective layer, so that the cross-shaped screw rods and the hexagonal clamping pieces are embedded into the circular grooves, and subsequent construction is facilitated. The protective layers, the heat preservation layers and the like on the inner side and the outer side are connected into an integral structure through the connecting piece, the cross-shaped screw rod and the hexagonal clamping piece, and the stability in the pouring process is improved. Preferably, the diameter of the circular groove is 20mm-35mm, and the depth is 1/2-2/3 of the thickness of the protective layer.
The heat-insulating transition layer is formed by pouring a certain proportion of light heat-insulating aggregate such as polyphenyl granules or vitrified micro bubbles into a hydraulic or air-hardening inorganic cementing material between the heat-insulating layer and the protective layer, or pouring the heat-insulating transition layer between the heat-insulating layer and the protective layer after foaming the hydraulic or air-hardening inorganic cementing material by physical foaming or introducing a floc foaming component and the like, and the hardened light inorganic heat-insulating layer with the heat-insulating light aggregate or air holes inside can meet the fire-proof requirement of building heat insulation in the fire-proof specification of building design together with the protective layer on the outer side, thereby playing a role in improving the fire-proof performance of the composite external template. Preferably, the thickness of the heat-insulating transition layer is designed to be 50mm-75 mm.
The I-shaped limiting structure is made of hard plastic and consists of a middle cylindrical connecting rod and discs at two ends, the distance between the heat preservation layer and the outer protective layer can be controlled when the heat preservation transition layer is poured, and the pouring stability is improved. Preferably, the diameter of the cylindrical connecting rod is 10mm-20mm, and the diameters of the disks at the two ends are 20mm-40mm (the disk close to the outer protective layer) and 30mm-50mm (the disk close to the insulating layer) respectively.
Compared with the prior art, the utility model beneficial effect who has is:
1. the utility model discloses an inside I shape that sets up of composite wall from limit structure, connecting piece and screens structure, can strengthen the cohesion between heat preservation and self-compaction concrete layer, inside and outside inoxidizing coating and the heat preservation layer, guarantee the distance of heat preservation and inside and outside inoxidizing coating, improve the stability that self-compaction concrete and heat preservation transition layer pour the in-process, cushion and dispersion external impact force, strengthen composite wall's structural stability.
2. The inorganic fiber plate-shaped protective layer is arranged on the inner side and the outer side of the composite wall body, so that on one hand, templates on the inner side and the outer side of the wall body can be saved, the construction period is shortened, and the construction cost is reduced; on the other hand, the quality problem caused by uneven quality levels of workers in formwork erecting in the traditional construction process can be solved, meanwhile, the protective layer can be used as a back lining material of the veneer layer, putty can be directly applied to the outer side of the protective layer, and a veneer can be made.
3. The heat-insulating transition layer is arranged between the heat-insulating layer and the outer protective layer, heat-insulating aggregates such as polyphenyl granules or vitrified micro bubbles and the like are added into a hydraulic or air-hardening inorganic cementing material in a certain proportion and then poured between the heat-insulating layer and the protective layer, or foaming components such as a floc foaming component and the like are introduced into the hydraulic or air-hardening inorganic cementing material and then poured between the heat-insulating layer and the protective layer, and the hardened inner part contains the heat-insulating aggregates or air holes, so that the heat-insulating transition layer and the outer protective layer can meet the requirement of building design fire protection on a fire-proof layer in building heat-insulating engineering on the one hand, and the function of improving the fire-proof performance of the composite outer; on the other hand, the heat-insulating aggregate or air holes in the heat-insulating transition layer can reduce the heat conductivity coefficient of the composite external template and can improve the thermal performance of the composite wall.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the detent structure;
FIG. 3 is a schematic view of the structure of the connector;
FIG. 4 is a left side view of FIG. 1;
fig. 5 is a right side view of fig. 1.
In the figure: 1. a heat-insulating layer; 2. an outer protective layer; 3. a heat-insulating transition layer; 4. an I-shaped limiting structure; 5. a connecting member; 6. a circular chuck; 7. an inner protective layer; 8. a concrete layer; 9. a clamping structure; 10. a cross-shaped screw; 11. a hexagonal fastener; 12. a cross-shaped chuck; 13. a circular groove.
Detailed Description
The invention will be further described with reference to the following examples:
as shown in fig. 1 ~ 5, assembly type for building no cavity composite wall structure, including concrete layer 8, concrete layer 8 is self-compaction lightweight aggregate concrete, contains cement, lightweight aggregate, sand, and the reference numeral is C50, concrete layer 8 lateral surface is equipped with heat preservation 1, and concrete layer 8 is connected fixedly through a plurality of connecting pieces 5 with heat preservation 1, and the heat preservation adopts the unit weight to be 22km/m3-30km/m3The heat conductivity coefficient is 0.028W/(m.K) -0.032W/(m.K), the thickness of the heat-insulating layer 1 is 10 cm;
an outer protective layer 2 is arranged on the outer side of the heat preservation layer 1, an inner protective layer 7 is arranged on the inner side surface of the concrete layer 8, the outer protective layer 2 and the inner protective layer 7 are of a silicon-calcium plate-shaped structure containing inorganic fibers inside, and the thickness is 5 mm;
a cavity supported by an I-shaped limiting structure 4 is arranged between the heat-insulating layer 1 and the outer protective layer 2, and a heat-insulating transition layer 3 is poured in the cavity; the heat-insulating transition layer 3 is formed by pouring heat-insulating aggregate such as polyphenyl granules or vitrified micro bubbles and the like in a certain proportion into a hydraulic or air-hardening inorganic cementing material between the heat-insulating layer 1 and the outer protective layer 2, or pouring the heat-insulating transition layer into the hydraulic or air-hardening inorganic cementing material between the heat-insulating layer 1 and the outer protective layer 2 after foaming through physical foaming or introduction of a floc foaming component and the like, and forming a light inorganic heat-insulating layer with heat-insulating aggregate or air holes inside after hardening, wherein the thickness of the heat-insulating transition layer is 75 mm;
the I-shaped limiting structure 4 is made of hard plastic and consists of a middle cylindrical connecting rod and disks at two ends, the diameter of the connecting rod is 10mm, and the diameters of the disks at two ends are respectively 30mm (close to the outer protective layer) and 50mm (close to the heat-insulating layer);
one end of the connecting piece 5 is placed into the concrete layer 8, one end of the connecting piece placed into the concrete layer 8 is provided with a circular chuck 6 through threaded connection, and the other end of the connecting piece is provided with a cross-shaped chuck 12 and fixed on the outer side of the heat-insulating layer 1 to realize the limiting and fixing of the heat-insulating layer 1; the diameter of the connecting member 5 is 35mm, the diameters of the circular chuck 6 and the cross-shaped chuck 12 are 60mm and 40mm, respectively, and the thickness is 25 mm.
The outer protective layer 2, the heat-preservation transition layer 3, the heat-preservation layer 1, the concrete layer 8 and the inner protective layer 7 are sequentially arranged from outside to inside and are fixedly connected through a plurality of clamping structures 9 penetrating through the outer protective layer; screens structure 9 one end is equipped with hexagon fastener 11, and the other end is the cylindrical hollow structure who has internal thread structure, through cross flower type screw rod 10 screw in cylindrical hollow structure, connect into no cavity composite wall structure with outer inoxidizing coating 2, heat preservation transition layer 3, heat preservation 1, concrete layer 8 and interior inoxidizing coating 7. Before concrete layer 8 pours, tie up the reinforcing bar in interior inoxidizing coating 7, outer inoxidizing coating 2 and the heat preservation 1 and the concrete layer 8 together through screens structure 9, improve the stability of concrete layer pouring in-process, improve construction quality. The middle of the clamping structure 9 is a cylindrical connecting rod, the diameter of the cylindrical connecting rod is 30mm, the side length of the hexagonal clamping piece 11 is 10mm, the diameter of the cross-shaped screw 10 is 12mm, and the length of the cross-shaped screw is 60 mm.
The outer protective layer 2 and the inner protective layer 7 are respectively provided with a circular groove 13 on the outer side surface and the inner side surface, the diameter of the circular groove 13 is 35mm, the circular groove 13 is matched with the hexagonal clamping piece 11 and the cross-shaped screw 10, and the depth of the circular groove 13 is 2/3 of the thickness of the protective layer.
The composite wall structure without the cavity in this embodiment is composed of a heat insulation layer 1, an outer protective layer 2, a heat insulation transition layer 3, an i-shaped limiting structure 4, a connecting piece 5, a circular chuck 6, an inner protective layer 7, a concrete layer 8, a clamping structure 9, a cross-shaped screw 10, a hexagonal clamping piece 11 and a cross-shaped chuck 12. The protective layer 2 arranged on the outer side surface of the heat preservation layer 1 and the protective layer 7 arranged on the inner side surface of the heat preservation layer are of a silicon-calcium plate-shaped structure containing inorganic fibers, can replace a template in the traditional construction process, and can be directly applied with putty and used as a facing after the wall body is completely poured, so that the leveling process is saved, and the construction cost is reduced; through all establishing the circular slot with cross flower type screw rod, hexagon fastener looks adaptation on the inoxidizing coating side, make the interior embedding of cross flower type screw rod, hexagon fastener the circular slot in, the follow-up construction of being convenient for connects into an overall structure through inoxidizing coating, heat preservation etc. of connecting piece, cross flower type screw rod, hexagon fastener with the inside and outside, improves the stability of pouring the in-process. A heat-insulating transition layer 3 is arranged between the heat-insulating layer 1 and the outer protective layer 2, and a layer of light inorganic heat-insulating layer containing heat-insulating aggregate or air holes is formed after hardening, and can meet the fire-proof requirement of building heat insulation in the building design fire-proof specification together with the outer protective layer 2, so that the effect of improving the fire-proof performance of the composite outer template is achieved, meanwhile, the heat-insulating aggregate or the air holes can reduce the heat conductivity coefficient of the composite outer template, and the thermal performance of the composite outer template can be improved; the I-shaped limiting structures 4 arranged on the heat-insulating layer 1 and the outer protective layer 2 are hard plastic structures, so that the distance between the heat-insulating layer 1 and the outer protective layer 2 can be controlled when the heat-insulating transition layer 3 is poured, and the pouring stability is improved; the connecting piece 5 can enhance the binding force between the heat preservation layer 1 and the concrete layer 8, and the structural safety of the composite wall body is improved; screens structure 9 one end is hexagon fastener 11, is connected with circular recess 13 on the outside inoxidizing coating 2, and in the embedded circular recess 13, the cylindrical hollow structure of the other end for having internal thread structure through the screw in cross flower type screw rod 10 screw in cylindrical hollow structure, on being fixed to interior inoxidizing coating 7 with cross flower type screw rod 10, can improve the stability of 8 pouring in-process of self-compaction lightweight aggregate concrete layer, improve construction quality.
Claims (9)
1. The utility model provides an assembled building is with no cavity composite wall structure, includes concrete layer (8), its characterized in that: the outer side surface of the concrete layer (8) is provided with a heat insulation layer (1), the concrete layer (8) and the heat insulation layer (1) are fixedly connected through a plurality of connecting pieces (5), the outer side of the heat insulation layer (1) is provided with an outer protective layer (2), and the inner side surface of the concrete layer (8) is provided with an inner protective layer (7); a cavity supported by an I-shaped limiting structure (4) is arranged between the heat-insulating layer (1) and the outer protective layer (2), and a heat-insulating transition layer (3) is poured in the cavity; the outer protective layer (2), the heat preservation transition layer (3), the heat preservation layer (1), the concrete layer (8) and the inner protective layer (7) are sequentially arranged from outside to inside and are fixedly connected through a plurality of clamping structures (9) penetrating through the outer protective layer, the heat preservation transition layer and the inner protective layer.
2. The cavity-free composite wall structure for assembly type buildings according to claim 1, wherein: concrete layer (8) are put into to connecting piece (5) one end, the one end of putting into concrete layer (8) is provided with circular chuck (6) through threaded connection, the other end is provided with cross flower type chuck (12), fixes in the outside of heat preservation (1), realizes spacing fixedly to heat preservation (1).
3. The cavity-free composite wall structure for assembly type buildings according to claim 2, wherein: the diameter of the connecting piece (5) is 20mm-35mm, the diameter of the circular chuck (6) and the cross-shaped chuck (12) is 40 mm-60 mm, and the thickness is 10 mm-25 mm.
4. The cavity-free composite wall structure for assembly type buildings according to claim 1, wherein: screens structure (9) one end be equipped with hexagon fastener (11), the cylindrical hollow structure of the other end for having internal thread structure, through cross flower type screw rod (10) screw in cylindrical hollow structure, become outer inoxidizing coating (2), heat preservation transition layer (3), heat preservation (1), concrete layer (8) and interior inoxidizing coating (7) and connect into no cavity composite wall structure.
5. The cavity-free composite wall structure for assembly type buildings according to claim 4, wherein: the middle of the clamping structure (9) is a cylindrical connecting rod, the diameter is 20 mm-30 mm, the side length of the hexagonal clamping piece (11) is 10 mm-15 mm, the diameter of the cross-shaped screw (10) is 10 mm-15 mm, and the length is 30 mm-60 mm.
6. The cavity-free composite wall structure for assembly type buildings according to claim 1, wherein: the heat-insulating layer (1) is of a modified polystyrene foam or polyurethane plate-shaped structure, and the thickness is 8-15 cm.
7. The cavity-free composite wall structure for assembly type buildings according to claim 1, wherein: the outer protective layer (2) and the inner protective layer (7) are of a silicon-calcium plate-shaped structure containing inorganic fibers inside, and the thickness is 5-10 mm; the outer protective layer (2) and the inner protective layer (7) are respectively provided with circular grooves (13) on the outer side surface and the inner side surface, the diameter is 20-35 mm, and the depth is 1/2-2/3 of the thickness of the protective layer.
8. The cavity-free composite wall structure for assembly type buildings according to claim 1, wherein: the heat-insulating transition layer (3) is an inorganic heat-insulating layer containing lightweight aggregate or air holes, and the thickness is 50-75 mm.
9. The cavity-free composite wall structure for assembly type buildings according to claim 1, wherein: the I-shaped limiting structure (4) is made of hard plastic and consists of a middle cylindrical connecting rod and disks at two ends, the diameter of the connecting rod is 10-20 mm, and the diameters of the disks at two ends are 20-50 mm.
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| CN201920613349.0U CN210316194U (en) | 2019-04-29 | 2019-04-29 | Cavity-free composite wall structure for assembly type building |
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| CN201920613349.0U CN210316194U (en) | 2019-04-29 | 2019-04-29 | Cavity-free composite wall structure for assembly type building |
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