Novel precast concrete broken bridge balcony

Abstract

The utility model provides a novel precast concrete broken bridge balcony, and belongs to the technical field of balcony buildings. The prefabricated concrete bridge-cutoff balcony structure comprises a prefabricated concrete bridge-cutoff balcony and an anchoring end used for later cast-in-place connection of the prefabricated concrete bridge-cutoff balcony. According to the prefabricated concrete bridge-cut-off balcony, balcony components which are difficult to construct on site are disassembled into the prefabricated concrete bridge-cut-off balcony and the anchoring ends, and the prefabricated concrete balcony, the bridge-cut-off connectors and the heat preservation isolation layer which form the prefabricated concrete bridge-cut-off balcony are integrally prefabricated in a factory, so that batch production can be realized; the precast concrete broken bridge balcony is fixed through the cast-in-place anchoring end, a formwork does not need to be erected on site, the site construction procedures can be reduced, the construction period is guaranteed, and the situation that the construction quality is unstable is reduced; the problems that a conventional wrapping method is affected by the overhanging length and the vertical face, materials are wasted, construction is troublesome, and heat bridge breaking is not thorough are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of balcony construction and relates to a new precast concrete broken bridge balcony. Background Art

[0002] In existing residential buildings, there are often some cantilever structures, such as canopies, external balconies, air-conditioning boards, equipment platform boards, parapets, etc. With the popularization of ultra-low energy consumption, near-zero energy consumption, and zero energy consumption buildings, more and more buildings need to carry out external wall thermal bridge treatment on structural cantilevers and extended parts;

[0003] In the prior art, the thermal bridge treatment of cantilever components is basically to use thermal insulation materials for full wrapping. The full wrapping method is limited by the cantilever length and facade shape, with a large amount of thermal insulation materials used, troublesome on-site construction, and incomplete root broken bridge.

[0004] In order to overcome the deficiencies of the prior art, industry insiders have continuously explored and proposed various solutions. For example, a Chinese patent discloses a broken bridge connector, a cantilever slab component, and an installation structure of a cantilever slab [Application No.: 2021223261571], including a broken bridge block made of a rigid polymer material and a tension bar made of a rigid carbon fiber material. The broken bridge block is provided with an outer butt joint surface and an inner butt joint surface that are parallel to each other. The tension bar penetrates through the broken bridge block. One end of the tension bar passes through the outer butt joint surface and extends to the outside of the outer butt joint surface, and the other end of the tension bar passes through the inner butt joint surface and extends to the outside of the inner butt joint surface. This application also discloses a cantilever slab component and an installation structure of a cantilever slab. However, there are also the following problems: casting concrete with on-site embedded broken bridge connectors has problems such as low construction efficiency, serious dependence on labor, unstable quality, and weak joint surfaces. At the same time, the application range of this broken bridge connector and cantilever slab component is limited to the cantilever slab structure. The thickness of the cantilever slab generally takes 1 / 10 of the cantilever length, which is more friendly to small-sized cantilever components such as conventional equipment platforms and air-conditioning boards. However, for a conventional balcony with a cantilever size of 1.5 - 1.6m, a beam-type balcony is generally considered in the design. If a slab-type balcony is used, the slab thickness needs to be 150 - 160mm, which increases the self-weight compared to the beam-type balcony, increasing the safety risk of the broken bridge connector; the slab-type balcony has a greater self-weight and more reinforcement than the beam-type balcony, and is relatively uneconomical. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a new precast concrete broken bridge balcony for the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A new type of precast concrete broken bridge balcony, comprising a precast concrete broken bridge balcony and an anchoring end for later on-site casting and connecting the precast concrete broken bridge balcony. The precast concrete broken bridge balcony includes a precast concrete balcony, a broken bridge connector, and a thermal insulation layer arranged in sequence from outside to inside. The thermal insulation layer is arranged between the precast concrete balcony and the anchoring end, and the precast concrete balcony is connected to the anchoring end through the broken bridge connector.

[0008] In the above-mentioned new type of precast concrete broken bridge balcony, the precast concrete balcony, the broken bridge connector, and the thermal insulation layer are integrally prefabricated and formed.

[0009] In the above-mentioned new type of precast concrete broken bridge balcony, the precast concrete balcony is composed of a precast balcony floor slab, a precast balcony head beam, and two precast balcony cantilever beams. The thermal insulation layer is arranged between the precast balcony floor slab and the anchoring end, and the broken bridge connector is arranged between the precast balcony cantilever beam and the anchoring end.

[0010] In the above-mentioned new type of precast concrete broken bridge balcony, the broken bridge connector includes a thermal insulation layer, a connector top reinforcement bar, and a connector bottom reinforcement bar. Both ends of the connector top reinforcement bar and the connector bottom reinforcement bar protrude from the thermal insulation layer. One end of the connector top reinforcement bar is connected to the top stress reinforcement bar in the precast balcony cantilever beam through a connection structure, and the other end of the connector top reinforcement bar is connected to the anchoring reinforcement bar in the anchoring end through a connection structure. One end of the connector bottom reinforcement bar is connected to the bottom stress reinforcement bar in the precast balcony cantilever beam through a connection structure, and the other end of the connector bottom reinforcement bar is inserted into the anchoring end.

[0011] In the above-mentioned new type of precast concrete broken bridge balcony, the connection structure includes a threaded sleeve, and the connector top reinforcement bar, the connector bottom reinforcement bar, the top stress reinforcement bar in the cantilever beam, the bottom stress reinforcement bar in the cantilever beam, and the anchoring reinforcement bar are all fixed by screwing with the threaded sleeve.

[0012] In the above-mentioned new type of precast concrete broken bridge balcony, compression pads are further arranged at the bottom of the thermal insulation layer.

[0013] In the above-mentioned new type of precast concrete broken bridge balcony, the height and width of the broken bridge connector are equal to the height and width of the inner end face of the precast balcony cantilever beam.

[0014] In the above-mentioned new type of precast concrete broken bridge balcony, the thickness of the thermal insulation layer is not less than 80 mm.

[0015] In the above-mentioned new type of precast concrete broken bridge balcony, both the connector top reinforcement bar and the connector bottom reinforcement bar are made of stainless steel.

[0016] In the above-mentioned new precast concrete balcony with broken thermal bridges, the thermal insulation layer and the insulation layer are made of Class A thermal insulation materials.

[0017] Compared with the existing technology, the advantages of the present utility model are as follows:

[0018] 1. The balcony components that are difficult to construct on-site in the present utility model are disassembled into precast concrete balconies with broken thermal bridges and anchoring ends. The precast concrete balcony, broken thermal bridge connector, and thermal insulation layer that make up the precast concrete balcony with broken thermal bridges are integrally precast in the factory, enabling mass production. The precast concrete balcony with broken thermal bridges is fixed by casting the anchoring end on-site, eliminating the need to set up formwork on-site, reducing on-site construction procedures, ensuring the construction period, and reducing the instability of construction quality. Moreover, the broken thermal bridge can be achieved through the broken thermal bridge connector and the thermal insulation layer, solving the problems of the conventional wrapping method being affected by the overhanging length and elevation, material waste, troublesome construction, and incomplete broken thermal bridge.

[0019] 2. The thermal insulation layer can block the thermal bridge between the precast balcony floor slab and the anchoring end, and the broken thermal bridge connector can block the thermal bridge between the precast balcony cantilever beam and the anchoring end.

[0020] 3. In the connection method of the present utility model, only the top reinforcement and bottom reinforcement of the connector extend into the anchoring end at the root of the precast balcony cantilever beam, and there is no extended reinforcement at the precast balcony floor slab, greatly simplifying the factory production of components.

[0021] Other advantages, objectives, and features of the present utility model will be partially reflected in the following description and partially understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the top view of the present utility model;

[0023] Figure 2 is the cross-sectional view of the precast balcony cantilever beam;

[0024] Figure 3 is the internal structure schematic diagram of the precast balcony cantilever beam;

[0025] Figure 4 is the internal exploded view of the precast balcony cantilever beam.

[0026] In the figure, precast concrete balcony with broken thermal bridges 1, anchoring end 2, precast concrete balcony 3, broken thermal bridge connector 4, thermal insulation layer 5, precast balcony floor slab 6, precast balcony head beam 7, precast balcony cantilever beam 8, insulation layer 9, top reinforcement of connector 10, bottom reinforcement of connector 11, top load-bearing reinforcement of cantilever beam 12, anchoring reinforcement 13, bottom load-bearing reinforcement of cantilever beam 14, threaded sleeve 15, compression pad 16. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] As shown Figures 1 - 4 in the figure, a new type of precast concrete broken-bridge balcony includes a precast concrete broken-bridge balcony 1 and an anchoring end 2 for later on-site casting and connecting the precast concrete broken-bridge balcony 1. The precast concrete broken-bridge balcony 1 includes a precast concrete balcony 3, a broken-bridge connector 4, and a heat insulation and isolation layer 5 arranged in sequence from outside to inside. The heat insulation and isolation layer 5 is arranged between the precast concrete balcony 3 and the anchoring end 2, and the precast concrete balcony 3 is connected to the anchoring end 2 through the broken-bridge connector 4.

[0028] The utility model disassembles the balcony components that are difficult to construct on-site into a precast concrete broken-bridge balcony 1 and an anchoring end, and integrally prefabricates the precast concrete balcony 3, the broken-bridge connector 4, and the heat insulation and isolation layer 5 that make up the precast concrete broken-bridge balcony 1 in the factory, which can realize batch production. The precast concrete broken-bridge balcony 1 is fixed by casting the anchoring end on-site, eliminating the need to set up formwork on-site, reducing on-site construction procedures, ensuring the construction period, and reducing the instability of construction quality. Moreover, the broken-bridge connector 4 and the heat insulation and isolation layer 5 can cut off the heat bridge, solving the problems of the conventional wrapping method being affected by the overhanging length and elevation, material waste, cumbersome construction, and incomplete heat bridge cutting.

[0029] Specifically, the precast concrete balcony 3, the broken-bridge connector 4, and the heat insulation and isolation layer 5 are integrally prefabricated and formed.

[0030] Specifically, the precast concrete balcony 3 is composed of a precast balcony floor slab 6, a precast balcony head beam 7, and two precast balcony cantilever beams 8. The heat insulation and isolation layer 5 is arranged between the precast balcony floor slab 6 and the anchoring end 2, and the broken-bridge connector 4 is arranged between the precast balcony cantilever beam 8 and the anchoring end 2. The heat insulation and isolation layer 5 can block the heat bridge between the precast balcony floor slab 6 and the anchoring end, and the broken-bridge connector 4 can block the heat bridge between the precast balcony cantilever beam 8 and the anchoring end.

[0031] Specifically, the broken-bridge connector 4 includes a heat insulation layer 9, a connector top steel bar 10, and a connector bottom steel bar 11. Both ends of the connector top steel bar 10 and the connector bottom steel bar 11 protrude from the heat insulation layer 9. One end of the connector top steel bar 10 is connected to the cantilever beam top stressed steel bar 12 in the precast balcony cantilever beam 8 through a connection structure, and the other end of the connector top steel bar 10 is connected to the anchoring steel bar 13 in the anchoring end 2 through a connection structure. One end of the connector bottom steel bar 11 is connected to the cantilever beam bottom stressed steel bar 14 in the precast balcony cantilever beam 8 through a connection structure, and the other end of the connector bottom steel bar 11 is inserted into the anchoring end 2. In the connection method of the utility model, only the connector top steel bar and the connector bottom steel bar extend into the anchoring end at the root of the precast balcony cantilever beam, and there are no extended steel bars at the precast balcony floor slab, greatly simplifying the factory production of components.

[0032] Specifically, the connecting structure includes a threaded sleeve 15. The top steel bar 10 of the connector, the bottom steel bar 11 of the connector, the top stressed steel bar 12 of the cantilever beam, the bottom stressed steel bar 14 of the cantilever beam, and the anchoring steel bar 13 are all fixedly connected to the threaded sleeve 15 by screwing. Using the threaded sleeve 15 to screw and fix the top steel bar 10 of the connector and the top stressed steel bar 12 of the cantilever beam, and the bottom steel bar 11 of the connector and the bottom stressed steel bar 14 of the cantilever beam can facilitate the assembly of the broken bridge connector and the precast balcony cantilever beam before precast pouring. Using the threaded sleeve 15 to screw and fix the top steel bar 10 of the connector and the anchoring steel bar 13 can facilitate the connection of the broken bridge connector and the internal anchoring steel bar at the anchoring end on site.

[0033] Preferably, a compression pad 16 is further provided at the bottom of the thermal insulation layer 9. The material for making the compression pad can be ABS high-strength plastic, high-performance or ultra-high-performance concrete.

[0034] Specifically, the height and width of the broken bridge connector 4 are equal to the height and width of the inner end face of the precast balcony cantilever beam 8.

[0035] Specifically, the thickness of the thermal insulation layer 9 is not less than 80 mm.

[0036] Specifically, both the top steel bar 10 of the connector and the bottom steel bar 11 of the connector are made of stainless steel. The top steel bar 10 of the connector and the bottom steel bar 11 of the connector can also be carbon steel with anti-corrosion treatment.

[0037] Specifically, the thermal insulation isolation layer 5 and the thermal insulation layer 9 are made of Class A thermal insulation materials. Class A thermal insulation materials include but are not limited to graphite-modified cement-based thermal insulation boards, cement foam thermal insulation boards, vitrified microsphere thermal insulation mortars, etc.

[0038] The materials for making the thermal insulation isolation layer 5 and the thermal insulation layer 9 can also be Class B thermal insulation materials whose durability and fire resistance are enhanced after surface treatment of the materials.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

[0040] Although terms such as precast concrete broken bridge balcony 1, anchoring end 2, precast concrete balcony 3, broken bridge connector 4, thermal insulation layer 5, precast balcony floor slab 6, precast balcony end beam 7, precast balcony cantilever beam 8, thermal insulation layer 9, top reinforcement bars of connector 10, bottom reinforcement bars of connector 11, top stressed reinforcement bars of cantilever beam 12, anchoring reinforcement bars 13, bottom stressed reinforcement bars of cantilever beam 14, threaded sleeve 15, compressive cushion block 16, etc. are used more frequently in this text, the use of these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. A new type of precast concrete broken bridge balcony, comprising a precast concrete broken bridge balcony (1) and an anchoring end (2) for later on-site casting and connecting the precast concrete broken bridge balcony (1), characterized in that, The precast concrete broken bridge balcony (1) described above includes a precast concrete balcony (3), a broken bridge connector (4), and a thermal insulation layer (5) arranged in sequence from outside to inside. The thermal insulation layer (5) is arranged between the precast concrete balcony (3) and the anchoring end (2), and the precast concrete balcony (3) is connected to the anchoring end (2) through the broken bridge connector (4).

2. A novel precast concrete broken bridge balcony according to claim 1, characterized in that, The precast concrete balcony (3), the broken bridge connector (4), and the thermal insulation layer (5) are integrally precast and formed.

3. A novel precast concrete broken bridge balcony according to claim 1, characterized in that, The precast concrete balcony (3) is composed of a precast balcony floor slab (6), a precast balcony head beam (7), and two precast balcony cantilever beams (8). The thermal insulation layer (5) is arranged between the precast balcony floor slab (6) and the anchoring end (2), and the broken bridge connector (4) is arranged between the precast balcony cantilever beam (8) and the anchoring end (2).

4. A novel precast concrete broken bridge balcony according to claim 3, characterized in that, The broken bridge connector (4) includes a thermal insulation layer (9), a connector top steel bar (10), and a connector bottom steel bar (11). Both ends of the connector top steel bar (10) and the connector bottom steel bar (11) protrude from the thermal insulation layer (9). One end of the connector top steel bar (10) is connected to the top force-bearing steel bar (12) in the precast balcony cantilever beam (8) through a connection structure, and the other end of the connector top steel bar (10) is connected to the anchoring steel bar (13) in the anchoring end (2) through a connection structure. One end of the connector bottom steel bar (11) is connected to the bottom force-bearing steel bar (14) in the precast balcony cantilever beam (8) through a connection structure, and the other end of the connector bottom steel bar (11) is inserted into the anchoring end (2).

5. A novel precast concrete broken bridge balcony according to claim 4, characterized in that, The connection structure includes a threaded sleeve (15). The connector top steel bar (10), the connector bottom steel bar (11), the top force-bearing steel bar (12) in the cantilever beam, the bottom force-bearing steel bar (14) in the cantilever beam, and the anchoring steel bar (13) are all fixed by screwing with the threaded sleeve (15).

6. A novel precast concrete broken bridge balcony according to claim 4, characterized in that, Compressive pads (16) are also provided at the bottom of the thermal insulation layer (9).

7. A novel precast concrete broken bridge balcony according to claim 4, characterized in that, The height and width of the broken bridge connector (4) are equal to the height and width of the inner end face of the precast balcony cantilever beam (8).

8. A novel precast concrete broken bridge balcony according to claim 4, characterized in that, The thickness of the thermal insulation layer (9) is not less than 80 mm.

9. A novel precast concrete broken bridge balcony according to claim 4, characterized in that, Both the connector top steel bar (10) and the connector bottom steel bar (11) are made of stainless steel.

10. A novel precast concrete broken bridge balcony according to claim 4, characterized in that, The thermal insulation layer (5) and the thermal insulation layer (9) are made of Class A thermal insulation materials.

Images