An assembled steel structure broken bridge prefabricated balcony

Abstract

The present invention relates to an assembled steel structure broken bridge prefabricated balcony, comprising two symmetrically arranged cantilever beams, a balcony slab arranged between the two cantilever beams, and a finishing layer located on the top of the balcony slab, the two cantilever beams are turned up, the bottom of the cantilever beam is flush with the bottom of the balcony slab after being coated with fire retardant coating, the finishing layer comprises a first cement mortar layer, a first waterproof layer, a second waterproof layer, a second cement mortar layer, an overhead floor and facing bricks arranged in sequence from bottom to top, a structural fracture is provided at the connection between the balcony slab and the indoor floor slab, the indoor floor slab is located on the steel beam, a fireproof isolation belt is provided on one side of the steel beam close to the balcony slab, and the fireproof isolation belt runs through the structural fracture; a thermal insulation mortar soil step is provided between the balcony slab and the balcony door. The present invention can effectively block the transfer of heat between the balcony slab and the indoor floor slab, and improve the thermal insulation performance of the building.

Description

Technical Field

[0001] The invention relates to a prefabricated balcony, in particular to an assembled steel structure broken bridge prefabricated balcony. Background Art

[0002] As a special component of the building structure, the balcony is a bridge between the indoor and outdoor of the building, a platform for humans to get close to nature, and also plays an important role in the exterior shape of the building. With the gradual deepening of the concept of building energy conservation and the continuous improvement of people's living standards, people's requirements for the comfort of the living environment are getting higher and higher. Eliminating thermal bridges is one of the effective means to improve the comfort of buildings. In the existing conventional balcony scheme, the balcony floor is usually connected to the floor inside the suite, and the conventional balcony part is not insulated. Cold and hot bridges will be formed at the floor position, which will reduce the insulation performance of the building, affect the comfort of the living environment, and increase energy consumption; secondly, the balcony slab casting and the upper layer structure and finished surface of traditional buildings are all completed on-site, which has problems such as large on-site construction volume, long construction period, more pollution, and high labor costs, which is not conducive to giving full play to the advantages of modern residential industrialization. Summary of the invention

[0003] The present invention aims to provide an assembled steel structure thermal insulation prefabricated balcony, which is used to solve the problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present invention is: an assembled steel structure broken bridge prefabricated balcony, comprising two symmetrically arranged cantilever beams, a balcony slab arranged between the two cantilever beams and a finishing layer located on the top of the balcony slab, the two cantilever beams are turned up, the bottom of the cantilever beam is flush with the bottom of the balcony slab after being coated with fire retardant coating, the finishing layer comprises a first cement mortar layer, a first waterproof layer, a second waterproof layer, a second cement mortar layer, an elevated floor and facing bricks arranged in sequence from bottom to top, a structural fracture is provided at the connection between the balcony slab and the indoor floor slab, the indoor floor slab is located on the steel beam, a fire isolation belt is provided on the side of the steel beam close to the balcony slab, and the fire isolation belt runs through the structural fracture;

[0005] An insulation mortar soil step is arranged between the balcony slab and the balcony door, and the insulation mortar soil step comprises an insulation mortar layer, a first waterproof layer, a second waterproof layer, a second cement mortar layer and a threshold finishing layer which are arranged in sequence from bottom to top.

[0006] Furthermore, the second waterproof layer is arranged at the connection between the prefabricated balcony and the main structure, and the width of the second waterproof layer is smaller than the width of the balcony slab.

[0007] Furthermore, the balcony slab is erected on the lower flange of the cantilever beam, the width of the lower flange of the cantilever beam is greater than the width of the upper flange of the cantilever beam, and the width of the lower flange of the cantilever beam on one side close to the balcony slab is greater than the width of the lower flange on the other side of the cantilever beam.

[0008] Furthermore, ALC blocks are filled between the upper flange and the lower flange of the cantilever beam and between the upper flange and the balcony slab.

[0009] Furthermore, an ALC block is filled between the upper flange and the lower flange of the steel beam, and the upper and lower flanges of the ALC block extend out of the steel beam on the indoor side. The ends of the upper and lower flanges of the steel beam on the indoor side are coated with fire retardant paint and are flush with the ends of the ALC block.

[0010] Furthermore, an outer wall is arranged at the bottom of the steel beam, and an insulation layer is arranged on the side of the outer wall close to the balcony slab, and the insulation layer is closely connected to the fire isolation zone.

[0011] Furthermore, the gap between the balcony slab and the fire isolation zone is sealed with cement mortar.

[0012] Furthermore, the balcony slab is made of concrete floor slab.

[0013] Furthermore, the cantilever beam and the frame column are connected by bolt welding.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention sets a structural break at the connection between the balcony slab and the indoor floor slab, and then fills the structural break with a fireproof isolation belt. Since the fireproof isolation belt itself is a part of the external insulation system of the exterior wall, the external insulation on the exterior wall can be continuous, thereby optimizing the indoor and outdoor heat transfer from a surface-to-surface conduction mode to a point-to-surface conduction mode, effectively blocking the heat transfer between the balcony slab and the indoor floor slab, improving the building's thermal insulation performance and the comfort of the living environment, and reducing energy consumption.

[0016] 2. The casting of the balcony slab of the present invention and the first cement mortar layer, the first waterproof layer, the second waterproof layer, the second cement mortar layer, the elevated floor and most of the tiles are all completed in the factory, leaving only the last row of tiles for on-site construction and completion of the insulation mortar soil steps, thereby effectively reducing on-site wet operations and reducing pollution. At the same time, since the balcony slab can be processed in large quantities in the factory, the construction period can be shortened and the labor cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a longitudinal sectional view of the present invention;

[0019] Figure 3 is a transverse cross-sectional view of the present invention;

[0020] Description in the figure: 1. Cantilever beam, 2. Frame column, 3. Balcony slab, 4. First cement mortar layer, 5. First waterproof layer, 6. Second waterproof layer, 7. Second cement mortar layer, 8. Raised floor, 9. Facing bricks, 10. Exterior wall, 11. Insulation layer, 12. Insulation mortar layer, 13. Indoor floor, 14. Cement mortar, 15. Steel beam, 16. Balcony door, 17. Threshold finishing layer, 18. Fire retardant coating, 19. ALC block, 20. Fire isolation zone. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figures 1 to 3 As shown, an assembled steel structure broken bridge prefabricated balcony comprises two symmetrically arranged cantilever beams 1, a balcony slab 3 arranged between the two cantilever beams 1 and a finishing layer located on the top of the balcony slab 3, the two cantilever beams 1 are turned up, the bottom of the cantilever beam 1 is flush with the bottom of the balcony slab 3 after being coated with a fire retardant coating 18, the finishing layer comprises a first cement mortar layer 4, a first waterproof layer 5, a second waterproof layer 6, a second cement mortar layer 7, an elevated floor 8 and a facing brick 9 arranged in sequence from bottom to top, a structural fracture is provided at the connection between the balcony slab 3 and the indoor floor slab 13, the indoor floor slab 13 is located on a steel beam 15, a fire isolation belt 20 is provided on the side of the steel beam 15 close to the balcony slab 3, and the fire isolation belt 20 runs through the structural fracture;

[0023] An insulation mortar soil step is arranged between the balcony slab 3 and the balcony door 16, and the insulation mortar soil step includes an insulation mortar layer 12, a first waterproof layer 5, a second waterproof layer 6, a second cement mortar layer 7 and a threshold finishing layer 17 arranged in sequence from bottom to top.

[0024] In this embodiment, a structural fracture is set at the connection between the balcony slab 3 and the indoor floor slab 13, and then the structural fracture is filled with a fire isolation belt 20. Since the fire isolation belt 20 itself is a part of the external insulation system of the exterior wall 10, the external insulation on the exterior wall 10 can be continuous, thereby optimizing the indoor and outdoor heat transfer from surface-to-surface conduction to point-to-surface conduction, effectively blocking the heat transfer between the balcony slab 3 and the indoor floor slab 13, improving the building's thermal insulation performance and the comfort of the living environment, and reducing energy consumption.

[0025] In the present embodiment, the casting of the balcony slab 3 and the upper first cement mortar layer 4, the first waterproof layer 5, the second waterproof layer 6, the second cement mortar layer 7, the elevated floor 8 and most of the surface bricks 9 are all completed in the factory, leaving only the position of the last row of surface bricks 9 for on-site construction and completion of the insulation mortar soil steps, thereby effectively reducing on-site wet operations and reducing pollution. At the same time, since the balcony slab 3 can be processed in large quantities in the factory, the construction period can be shortened and the labor cost can be reduced.

[0026] In this embodiment, the first cement mortar layer 4 has both the functions of slope adjustment and leveling.

[0027] In this embodiment, the first waterproof layer 5 is made of JS elastic waterproof coating, and the second waterproof layer 6 is made of waterproof coiled material.

[0028] In this embodiment, the cantilever beam 1 is flipped up, and the bottom of the cantilever beam 1 is coated with fire retardant coating 18 to be flush with the bottom of the balcony slab 3, so as to form a slab balcony, so that the facade of the entire prefabricated balcony looks lighter. At the same time, the traditional edge beam is eliminated, which can reduce the weight of the entire prefabricated balcony while reducing the amount of steel used.

[0029] In this embodiment, the fireproof isolation belt 20 can be a rock wool fireproof isolation belt or made of other inorganic thermal insulation materials.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the second waterproof layer 6 is arranged at the connection between the prefabricated balcony and the main structure, and the width of the second waterproof layer 6 is smaller than the width of the balcony slab 3.

[0031] In this embodiment, it should be noted that the main structure refers to the entire building except the prefabricated balconies.

[0032] In this embodiment, water leakage at the connection between the prefabricated balcony and the main structure can be effectively avoided by providing the second waterproof layer 6. The width of the second waterproof layer 6 is smaller than the width of the balcony board 3, which can facilitate workers to carry out construction under the premise of meeting the use requirements, and at the same time, can save waterproof membrane.

[0033] like Figure 3 As shown, in this embodiment, the balcony slab 3 is mounted on the lower flange of the cantilever beam 1, the lower flange width of the cantilever beam 1 is greater than the upper flange width of the cantilever beam 1, and the lower flange width of the cantilever beam 1 on one side close to the balcony slab 3 is greater than the lower flange width on the other side of the cantilever beam 1. This makes it easier to mount the balcony slab 3 on the lower flange of the cantilever beam 1, thereby making the facade of the entire prefabricated balcony look lighter.

[0034] like Figure 3 As shown, in this embodiment, ALC blocks 19 are filled between the upper flange and the lower flange of the cantilever beam 1 and between the upper flange and the balcony slab. Filling the ALC blocks 19 can play a certain fire prevention role, thereby improving the fire resistance of the cantilever beam 1 and ensuring the safety of the steel structure building. Further, the ALC blocks 19 are fixed by an external steel plate mesh, and the steel plate mesh is connected to the cantilever beam 1 by welding.

[0035] like Figure 2As shown, in this embodiment, ALC blocks 19 are filled between the upper flange and the lower flange of the steel beam 15, and the ALC blocks 19 extend out of the upper and lower flanges of the steel beam 15 close to the indoor side. The ends of the upper and lower flanges of the steel beam 15 close to the indoor side are coated with fire retardant coating 18 and are flush with the ends of the ALC blocks 19.

[0036] In this embodiment, ALC blocks 19 are filled between the upper flange and the lower flange of the steel beam 15, which can cooperate with the fire retardant coating 18 to play a fire prevention role. At the same time, the ALC blocks 19 can also play a sound insulation role.

[0037] like Figure 2 As shown, in this embodiment, an outer wall 10 is provided at the bottom of the steel beam 15 , and an insulation layer 11 is provided on the side of the outer wall 10 close to the balcony slab 3 , and the insulation layer 11 is tightly fitted with the fire isolation zone 20 .

[0038] In this embodiment, the exterior wall 10 is an ALC exterior wall or a non-transparent curtain wall, etc., and the insulation material used for the insulation layer 11 can be a modified EPS insulation board, an extruded polystyrene board, a rock wool board or a rock wool tape, etc.

[0039] like Figure 2 As shown, in this embodiment, the gap between the balcony slab 3 and the fire isolation zone 20 is sealed with cement mortar.

[0040] In this embodiment, the balcony slab 3 is made of concrete floor slab.

[0041] In this embodiment, the concrete floor is cast in situ in the factory, and the concrete floor can be a steel truss floor or a composite slab, etc. Further, the concrete floor is stressed along the long span of the balcony, so that a structural fracture is provided at the connection between the balcony slab 3 and the indoor floor slab 13 .

[0042] In this embodiment, the cantilever beam 1 and the frame column 2 are connected by bolt welding.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent structural changes made using the contents of the present invention description and drawings are also included in the scope of the present invention.

Claims

1. An assembled steel structure broken bridge prefabricated balcony, comprising two symmetrically arranged cantilever beams, a balcony slab arranged between the two cantilever beams and a finishing layer located on the top of the balcony slab, characterized in that: The two cantilever beams are turned up, and the bottom of the cantilever beams is flush with the bottom of the balcony slab after being coated with fire retardant paint. The balcony slab is erected on the lower flange of the cantilever beam, the width of the lower flange of the cantilever beam is greater than the width of the upper flange of the cantilever beam, and the width of the lower flange of the cantilever beam on one side close to the balcony slab is greater than the width of the lower flange on the other side of the cantilever beam; ALC blocks are filled between the upper flange and the lower flange of the cantilever beam and between the upper flange and the balcony slab; The finishing layer includes a first cement mortar layer, a first waterproof layer, a second waterproof layer, a second cement mortar layer, an elevated floor and facing bricks arranged in sequence from bottom to top; a structural fracture is provided at the connection between the balcony slab and the indoor floor slab; the indoor floor slab is located on a steel beam; a fireproof isolation belt is provided on the side of the steel beam close to the balcony slab; the fireproof isolation belt runs through the structural fracture; An insulation mortar soil step is arranged between the balcony slab and the balcony door, and the insulation mortar soil step comprises an insulation mortar layer, a first waterproof layer, a second waterproof layer, a second cement mortar layer and a threshold finishing layer which are arranged in sequence from bottom to top.

2. The prefabricated steel structure broken bridge balcony according to claim 1, characterized in that: The second waterproof layer is arranged at the connection between the prefabricated balcony and the main structure, and the width of the second waterproof layer is smaller than the width of the balcony slab.

3. The prefabricated steel structure broken bridge balcony according to claim 1, characterized in that: ALC blocks are filled between the upper flange and the lower flange of the steel beam. The upper and lower flanges of the ALC blocks extend out of the steel beam on the indoor side. The ends of the upper and lower flanges of the steel beam on the indoor side are coated with fire retardant paint and are flush with the ends of the ALC blocks.

4. The prefabricated steel structure broken bridge balcony according to claim 1, characterized in that: An outer wall is arranged at the bottom of the steel beam, a heat-insulating layer is arranged on the side of the outer wall close to the balcony plate, and the heat-insulating layer is closely connected with the fire-proof isolation zone.

5. The prefabricated steel structure broken bridge balcony according to claim 1 is characterized by: The gap between the balcony slab and the fire isolation zone is sealed with cement mortar.

6. The prefabricated steel structure broken bridge balcony according to claim 1, characterized in that: The balcony slab is a concrete floor slab.

7. The prefabricated steel structure broken bridge balcony according to claim 1, characterized in that: The cantilever beam is connected to the frame column by bolt welding.

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