Cantilever heat insulation bridge heat preservation balcony structure

Abstract

The utility model relates to the technical field of building external envelope structures, and particularly discloses a cantilever heat-insulation bridge heat-preservation balcony structure which comprises a balcony plate, a floor plate fixedly connected to a main building and a heat-insulation bridge assembly fixedly connected between the floor plate and the balcony plate. The thermal bridge insulation main body is fixedly connected between the balcony plate and the floor, the tensile rods penetrate through the thermal bridge insulation main body, anti-shearing components penetrating through the thermal bridge insulation main body are arranged between the tensile rods, and a steel bar assembly is further arranged between the balcony plate and the floor. A plurality of connecting steel bars are arranged in the balcony plate and the floor plate, the two ends of each tensile rod extend into the balcony plate and the floor plate respectively to be fixedly connected with the connecting steel bars in the balcony plate and the connecting steel bars in the floor plate, and a plurality of compression-resistant parts are further evenly arranged in the thermal bridge heat preservation body. According to the scheme, the problems that a traditional balcony with a thermal bridge problem cannot solve the problems of heat flow loss of a building and low shear strength and compressive strength at the same time can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of building exterior envelope structures, and specifically discloses a cantilevered thermal bridge-breaking and heat-insulating balcony structure. Background Art

[0002] At present, with the rise in global temperature, the passive building design concept is actively advocated. Passive ultra-low energy consumption buildings refer to buildings that adapt to climate characteristics and natural conditions through enclosure structures with higher thermal insulation and airtightness. Enclosure structures can be divided into external enclosure structures and internal enclosure structures according to whether they are in direct contact with outdoor air. Enclosure structures usually refer to external enclosure structures unless otherwise specified. Studies have shown that among the heat flow losses of external enclosure structures, balcony heat flow losses account for 16.8% of the total heat flow losses of external structures. The main cause of balcony heat loss is the thermal bridge problem of cantilevered balconies. The thermal bridge problem refers to reinforced concrete or metal beams in enclosure structures such as exterior walls and roofs. The heat dissipation problem is caused by the strong heat transfer capacity, dense heat flow and low inner surface temperature of the columns, ribs and other parts. The thermal bridge effect is the physical effect of heat conduction. There are concrete ring beams and structural columns at the floors and corners, and the concrete material has better thermal conductivity than the wall material (the thermal conductivity of the concrete material is 2 to 4 times that of ordinary bricks). At the same time, due to poor indoor ventilation, the temperature difference between indoor and outdoor is large in late autumn and early winter, and the cold and hot air are in frequent contact, and the wall insulation layer conducts heat unevenly, resulting in a thermal bridge effect. The thermal bridge effect is obvious at the connection between the balcony and the floor, which will cause condensation caused by the temperature difference on the balcony, and manifest as mold and epidermal peeling, affecting the service life and comfort of the building.

[0003] In the prior art, there are two main solutions to the thermal bridge problem of balconies: one is to use assembled wooden balconies. This structure disconnects the path of heat transfer from the outside of the building to the main building by separating the balcony from the main building, effectively solving the problem of heat flow loss in the building; the other is to use thermal bridge-breaking balcony connection units, which are equipped with shear components so that the balcony prefabricated panels can have better torsional strength and shear strength. The main problem of the first solution is that the assembly workload is large, and the shear strength and compressive strength at the connection nodes are insufficient, and the load that the balcony can bear is limited.

[0004] As for the second solution, although the layout of the shear ribs and anchor steel bars can enhance the shear strength and compressive strength at the connection nodes of the balcony, the thermal conductivity of the steel structure is large and the heat flow is not completely blocked.

[0005] Therefore, in view of this, the inventor provides a cantilevered thermal bridge-breaking and heat-insulating balcony structure to solve the above-mentioned problem. Utility Model Content

[0006] The utility model aims to solve the problem that the traditional balcony for solving the thermal bridge problem cannot solve the problem of heat flow loss of the building and the low shear strength and compressive strength.

[0007] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a cantilevered thermal bridge insulation balcony structure, including a balcony slab, a floor slab fixedly connected to the main building, and a thermal bridge insulation component fixedly connected between the floor slab and the balcony slab, the thermal bridge insulation component including a thermal bridge insulation body fixedly connected between the balcony slab and the floor slab and a plurality of tension rods passing through the thermal bridge insulation body, and anti-shear members passing through the thermal bridge insulation body are arranged between the tension rods, and a steel bar assembly is also arranged between the balcony slab and the floor slab, and the steel bar assembly is fixedly connected to the plurality of tension rods and the plurality of anti-shear members, and a plurality of connecting steel bars are arranged in the balcony slab and the floor slab, and the two ends of the tension rod extend into the balcony slab and the floor slab respectively and are fixedly connected to the connecting steel bars in the balcony slab and the connecting steel bars in the floor slab, and a plurality of anti-compression parts are also evenly arranged in the thermal bridge insulation body.

[0008] The principles and effects of this basic solution are:

[0009] 1. Compared with the prior art, this scheme improves a cantilevered thermal insulation balcony structure. The floor slab is fixedly connected to the main building, and a thermal insulation bridge component is arranged between the floor slab and the balcony slab. The thermal insulation bridge component forms a partition between the balcony and the floor slab, disconnects the path of heat in the floor slab being transmitted to the balcony, reduces the heat loss of the building, and avoids the frequent contact between the cold air on the outside of the balcony concrete block and the hot air on the balcony concrete block due to the large temperature difference between indoor and outdoor, which causes condensation on the wall of the balcony concrete block, mold on the surface of the balcony concrete block, and detachment of the sign. In addition, the balcony is connected to the floor slab through the thermal insulation bridge component, so that the balcony has good torsional strength and shear strength, and can withstand large loads.

[0010] 2. Compared with the prior art, this scheme improves a cantilevered thermal bridge insulation balcony structure. A thermal bridge insulation body is arranged between the floor slab and the balcony slab. The design of the thermal bridge insulation body has the effect of isolating heat and reducing the heat transmission from the floor slab to the balcony slab. The thermal bridge insulation body passes through the shear-resistant components, tension rods and compression parts. Connecting steel bars are arranged in the balcony slab and the floor slab. The two ends of the tension rod are respectively fixedly connected to the connecting steel bars in the balcony slab and the connecting steel bars in the floor slab. The balcony slab can be fixed to one side of the floor slab through the connection of the connecting steel bars in the balcony slab and the connecting steel bars in the floor slab and the tension rod. The compression parts, shear-resistant components and tension rods in the thermal bridge insulation body can also enhance the torsional strength and shear strength of the balcony, so that the balcony can withstand large loads.

[0011] Furthermore, the thermal bridge insulation body includes a thermal insulation material arranged between the balcony plate and the floor plate and a foamed polyurethane filled between the balcony plate and the floor plate, and the thermal insulation material is made of polystyrene resin.

[0012] The material of the thermal insulation material is polystyrene resin, which eliminates the need for a fireproof shell, making the thermal bridge structure simple and convenient. Foamed polyurethane has good thermal insulation properties. Filling foamed polyurethane on both sides of the thermal insulation material is beneficial to blocking heat loss, solving the problem of balcony thermal bridges, reducing the energy consumption and cost of ventilation and air conditioning used indoors in the building, and preventing the cantilevered balcony panels from becoming moldy and damp due to temperature differences, thereby improving the comfort of the house.

[0013] Furthermore, the anti-shear member is a circular stirrup, the surface enclosed by the circular stirrups is perpendicular to the ground, and the steel bar assembly includes a plurality of first steel bars arranged between the balcony slab and the floor slab, and the first steel bars are fixedly connected to the side of the circular stirrups away from the ground and the tension rods.

[0014] The circular stirrups and the tensile rods are fixed by the first steel bar, which enables the circular stirrups to withstand the shear stress, strengthens the integrity and shear resistance of the node, has a simple structure, and is easy to construct.

[0015] Furthermore, a second steel bar is provided between the balcony slab and the floor slab, and the second steel bar is fixedly connected to a plurality of circular stirrups on a side close to the ground.

[0016] The design of the second steel bar can make the connection between several circular stirrups more stable, thereby improving the shear resistance of the circular stirrups.

[0017] Furthermore, a plurality of the first steel bars and a plurality of the second steel bars are all located on one side of the thermal bridge insulation body.

[0018] By arranging the first steel bars and the second steel bars on the balcony side or the floor side, the first steel bars and the second steel bars will not participate in the heat transfer of the thermal bridge, thus ensuring the thermal bridge breaking effect.

[0019] Furthermore, the anti-pressure member is in the shape of a hexagonal prism.

[0020] The compression parts are designed in the shape of hexagonal prisms, taking into account the hoop effect caused by pressure. Based on the compressive failure characteristics of standard cubic concrete, the compression members are made into hexagonal prisms with a hexagonal cross-section in the opposite direction of the failure form, which can better resist pressure.

[0021] Furthermore, the balcony slab is a balcony concrete block formed by pouring concrete, the floor slab is a floor slab concrete block formed by pouring concrete, and the plurality of connecting steel bars are respectively buried in the balcony concrete block and the floor slab concrete block.

[0022] The floor slabs and balcony slabs are concrete blocks, which can allow the balcony slabs to be firmly fixed to the main building through internal connecting steel bars, thereby increasing the load that the balcony slabs can withstand. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic structural diagram of a cantilevered thermal bridge-breaking and heat-insulating balcony structure is shown in an embodiment of the present application;

[0025] Figure 2 Shows Figure 1 Internal schematic of the interrupted thermal bridge assembly. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0027] The figure marks in the drawings of the specification include: balcony concrete block 1, floor concrete block 2, thermal bridge breaking assembly 3, tension rod 4, circular stirrup 5, first steel bar 6, second steel bar 7, compression member 8, thermal bridge insulation body 9.

[0028] A cantilever thermal bridge insulation balcony structure, for example Figure 1 As shown: it includes a balcony slab, a floor slab fixed to the building body, and a thermal insulation bridge component 3 between the floor slab and the balcony slab.

[0029] like Figure 2 As shown, the balcony slab is a balcony concrete block 1, the floor slab is a floor concrete block 2, installation steel bars are provided in the main building, connecting steel bars are provided in the floor concrete block 2 and the balcony concrete block 1, the connecting steel bars in the floor concrete block 2 are welded to the installation steel bars in the main building, and the thermal insulation bridge assembly 3 is respectively welded to the connecting steel bars in the balcony concrete block 1 and the connecting steel bars in the floor concrete block 2.

[0030] like Figure 2As shown, the thermal bridge breaking assembly includes a thermal bridge insulation body 9 arranged between the balcony concrete block 1 and the floor concrete block 2 and six tension rods 4 evenly distributed along the length direction of the balcony concrete block 1 and passing through the thermal bridge insulation body 9. The two ends of the tension rod 4 are respectively welded to the connecting steel bars in the floor concrete block 2 and the connecting steel bars in the balcony concrete block 1. Anti-shear components passing through the thermal bridge insulation body 9 are arranged between the tension rods 4. The anti-shear components are circular stirrups 5. The surface surrounded by the circular stirrups 5 is perpendicular to the ground. A steel bar assembly is also arranged between the balcony concrete block 1 and the floor concrete block 2. The steel bar assembly is welded to the six tension rods 4 and the five circular stirrups 5. The steel bar assembly includes two first steel bars 6 arranged between the balcony concrete block 1 and the floor concrete block 2. The first steel bars 6 are welded to the top surfaces of the five circular stirrups 5 and the tension rod 4. The circular stirrups 5 and the tensile rod are fixed by the first steel bars 6, which can make the circular stirrups 5 withstand the shear stress demand, strengthen the integrity and shear resistance of the node, have a simple structure, and are easy to construct. The balcony concrete block 1 A second steel bar 7 is also provided between the floor concrete block 2, and the second steel bars 7 are welded to the bottom end faces of the five circular stirrups 5. The design of the second steel bar 7 can make the connection between the several circular stirrups 5 more stable, thereby improving the shear resistance of the circular stirrups 5. The two first steel bars 6 and the two second steel bars 7 are all located on the left side of the thermal bridge insulation body 9. The arrangement of the positions of the first steel bars 6 and the second steel bars 7 can prevent the first steel bars 6 and the second steel bars 7 from participating in the heat transfer of the thermal bridge, thereby ensuring the thermal bridge breaking effect. Four compression members 8 are also evenly distributed in the thermal bridge insulation body 9 along the length direction of the thermal bridge insulation body 9. The compression members 8 are in the shape of hexagonal prisms. The compression members 8 are designed in the shape of hexagonal prisms, taking into account the hoop effect caused by pressure. According to the compressive failure characteristics of standard cubic concrete, the compressive member is made into a hexagonal prism with a cross-section opposite to the failure form, which can better resist pressure. The materials of the tension rod 4, the circular stirrups 5, the first steel bars 6, the second steel bars 7, the connecting steel bars and the compression member 8 are all basalt fiber reinforced resin (BFRP).

[0031] like Figure 2 As shown, the floor concrete block 2 is formed by pouring concrete on the supporting formwork between the main building and the thermal bridge insulation body 9, and the balcony concrete block 1 is formed by pouring concrete on the supporting formwork on the right side of the thermal bridge insulation body 9. The connecting steel bars in the floor concrete are all buried in the floor concrete block 2, and the circular stirrups 5, the first steel bars 6, the second steel bars 7 and the tension rods 4 on the right side of the thermal bridge insulation body 9 are buried in the floor concrete block 2. The connecting steel bars in the balcony concrete block 1 are all buried in the balcony concrete block 1, and the circular stirrups 5 and the tension rods 4 on the right side of the thermal bridge insulation body 9 are buried in the balcony concrete block 1.

[0032] like Figure 2As shown, the thermal bridge insulation body 9 includes a thermal insulation material arranged between the balcony concrete block 1 and the floor concrete block 2 and a foamed polyurethane filled between the balcony concrete block 1 and the floor concrete block 2. The material of the thermal insulation material is polystyrene resin (XPS). The material of the thermal insulation material is set to polystyrene resin (XPS), which eliminates the need for a fireproof shell, making the thermal bridge structure simple and convenient. The foamed polyurethane has good thermal insulation performance. Filling the foamed polyurethane on both sides of the thermal insulation material is beneficial to blocking the loss of heat, solving the problem of balcony thermal bridges, reducing the energy consumption and cost of ventilation and air conditioning used indoors in the building, and preventing the cantilevered balcony panels from becoming moldy and damp due to temperature differences, thereby improving the comfort level of the house.

[0033] During installation, the utility model is welded with the connecting steel bars in the balcony concrete block 1 and the connecting steel bars in the floor concrete block 2 respectively to fix the balcony concrete block 1 and the floor concrete block 2. The compression parts 8, the circular stirrups 5 and the tension rods 4 on the thermal insulation and heat-proof materials can also enhance the torsional strength and shear strength of the balcony concrete block 1, so that the balcony concrete block 1 can withstand large loads. Then, foamed polyurethane is poured between the balcony concrete block 1 and the floor concrete block 2. The design of the thermal insulation and heat-proof materials and foamed polyurethane forms a partition between the balcony concrete block 1 and the floor concrete block 2, disconnecting the path of heat transmission from the inside of the floor concrete block 2 to the outside of the balcony concrete block 1, reducing the heat loss of the building, and avoiding frequent contact between the cold air outside the balcony concrete block 1 and the hot air on the balcony concrete block 1 due to the large temperature difference between indoor and outdoor, causing condensation on the wall of the balcony concrete block 1, and mold and label detachment on the surface of the balcony concrete block 1.

[0034] The utility model can solve the problem of traditional balconies that solve the thermal bridge problem, but cannot solve the problem of heat flow loss in buildings and low shear strength and compressive strength.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A cantilevered thermal bridge insulation balcony structure, characterized in that: It includes a balcony slab, a floor slab fixedly connected to a main building, and a thermal bridge breaking assembly fixedly connected between the floor slab and the balcony slab. The thermal bridge breaking assembly includes a thermal bridge insulation body fixedly connected between the balcony slab and the floor slab and a plurality of tension rods passing through the thermal bridge insulation body. Anti-shear members passing through the thermal bridge insulation body are arranged between the tension rods. A steel bar assembly is also arranged between the balcony slab and the floor slab. The steel bar assembly is fixedly connected to the plurality of tension rods and the plurality of anti-shear members. A plurality of connecting steel bars are arranged in the balcony slab and the floor slab. Two ends of the tension rods extend into the balcony slab and the floor slab respectively and are fixedly connected to the connecting steel bars in the balcony slab and the connecting steel bars in the floor slab. A plurality of anti-compression parts are also evenly arranged in the thermal bridge insulation body.

2. The cantilevered thermal bridge insulation balcony structure according to claim 1 is characterized in that: The thermal bridge insulation body comprises a thermal insulation material arranged between the balcony plate and the floor plate and a foamed polyurethane filled between the balcony plate and the floor plate. The thermal insulation material is made of polystyrene resin.

3. The cantilevered thermal bridge-breaking and heat-insulating balcony structure according to claim 1 is characterized in that: The anti-shear member is a circular stirrup, the surface enclosed by the circular stirrups is perpendicular to the ground, and the steel bar assembly includes a plurality of first steel bars arranged between the balcony slab and the floor slab, and the first steel bars are fixedly connected to the side of the circular stirrups away from the ground and the tension rods.

4. The cantilevered thermal bridge-breaking and heat-insulating balcony structure according to claim 3 is characterized in that: A second steel bar is also provided between the balcony slab and the floor slab, and the second steel bar is fixedly connected to a plurality of circular stirrups on one side close to the ground.

5. The cantilevered thermal bridge-breaking and heat-insulating balcony structure according to claim 4 is characterized in that: A plurality of the first steel bars and a plurality of the second steel bars are all located on one side of the thermal bridge insulation body.

6. The cantilevered thermal bridge-breaking and heat-insulating balcony structure according to claim 1 is characterized in that: The anti-pressure piece is in the shape of a hexagonal prism.

7. The cantilevered thermal bridge-breaking and heat-insulating balcony structure according to claim 4 is characterized in that: The balcony slab is a balcony concrete block formed by pouring concrete, and the floor slab is a floor slab concrete block formed by pouring concrete. The plurality of connecting steel bars are respectively buried in the balcony concrete block and the floor slab concrete block.

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