Structural decoration integrated precast concrete slab applied to elevated station transformation

Abstract

The utility model discloses a structure and decoration integrated precast concrete slab applied to elevated station transformation, the precast concrete slab is composed of a steel bar group and concrete wrapping the steel bar group, the steel bar group comprises an inverted U-shaped steel bar group, an inverted trapezoidal steel bar group and an inclined reinforcing steel bar group, the inverted U-shaped reinforcing steel bar group is composed of two vertical reinforcing steel bar groups and a first transverse reinforcing steel bar group, the inverted trapezoidal reinforcing steel bar group is composed of a second transverse reinforcing steel bar group, a third transverse reinforcing steel bar group and two inclined reinforcing steel bar groups, and the number of the inclined reinforcing steel bar groups is two; the upper portion of the prefabricated concrete plate is provided with a shutter installation groove used for installing the ventilation and smoke exhaust shutter, and the middle portion and the lower portion of the prefabricated concrete plate are each provided with a glass installation groove used for installing the double-layer laminated glass. The prefabricated concrete slab has the advantages that the adverse factors of long construction period, many potential safety hazards, dust raising, serious noise pollution, limited construction working surface and the like of the traditional integral cast-in-place can be effectively avoided by using the prefabricated concrete slab.

Description

Technical Field

[0001] This utility model relates to the technical field of elevated station renovation, and in particular to a precast concrete slab that integrates structure and decoration for use in elevated station renovation. Background Technology

[0002] A subway is a high-speed, high-capacity, electrically powered rail transit system built in cities. Trains run on fully enclosed tracks; lines in urban centers are primarily located in underground tunnels, while lines outside urban centers are generally located on elevated bridges or at ground level. Subways are a high-density, high-capacity urban rail transit system encompassing various underground and above-ground right-of-way systems in urban areas. With the continuous expansion of subway networks and the increasing passenger flow, there is a growing trend of designing new subway lines next to existing elevated subway stations, facilitating transfers between these stations. This influx of transfer passengers exacerbates the problem of insufficient capacity in existing elevated stations, necessitating expansion and improved service levels for some stations. Achieving rapid and safe construction at existing elevated stations without interrupting operations is a pressing technical challenge.

[0003] Therefore, there is a need for a precast concrete slab that integrates structure and decoration and can solve the above problems for use in the renovation of elevated stations. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of the prior art by providing a precast concrete slab that integrates structure and decoration for use in the renovation of elevated stations. This precast concrete slab is composed of steel reinforcement groups and concrete encasing the steel reinforcement groups. The upper part of the precast concrete slab is provided with a louver installation groove for installing ventilation and smoke exhaust louvers, and the middle and lower parts of the precast concrete slab are provided with glass installation grooves for installing double-layer laminated glass. This solves the problem of rapidly improving the functionality and artistic landscape of existing elevated rail transit stations by using precast components during construction without interrupting operations.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A precast concrete slab integrating structure and decoration for use in the renovation of elevated stations. The precast concrete slab is composed of steel reinforcement groups and concrete encasing the steel reinforcement groups. The steel reinforcement groups include inverted U-shaped steel reinforcement groups, inverted trapezoidal steel reinforcement groups, and diagonal reinforcing steel reinforcement groups. The inverted U-shaped steel reinforcement groups consist of two vertical steel reinforcement groups and one first horizontal steel reinforcement group. The inverted trapezoidal steel reinforcement groups consist of one second horizontal steel reinforcement group, one third horizontal steel reinforcement group, and two diagonal steel reinforcement groups. There are two diagonal reinforcing steel reinforcement groups. The upper part of the precast concrete slab is provided with louver mounting grooves for installing ventilation and smoke exhaust louvers. The middle and lower parts of the precast concrete slab are provided with glass mounting grooves for installing double-layer laminated glass.

[0007] The two ends of the first horizontal reinforcing bar group are respectively connected to the bottom of the two vertical reinforcing bar groups. The length of the second horizontal reinforcing bar group is less than the length of the third horizontal reinforcing bar group. The two ends of the third horizontal reinforcing bar group are respectively connected to the middle of the two vertical reinforcing bar groups. The two ends of the diagonal reinforcing bar group are respectively connected to the second horizontal reinforcing bar group and the vertical reinforcing bar group. The two diagonal reinforcing bar groups are respectively installed inside the two diagonal reinforcing bar groups. The two ends of the diagonal reinforcing bar group are respectively connected to the second horizontal reinforcing bar group and the third horizontal reinforcing bar group.

[0008] The top two sides of the precast concrete slab are connected to the existing upper structural beam by rebar anchoring, and a cast-in-place section is poured between the top two sides of the precast concrete slab and the existing upper structural beam; the bottom of the precast concrete slab is connected to the existing lower structural beam by rebar anchoring, and a leveling grouting layer is poured between the bottom of the precast concrete slab and the existing lower structural beam.

[0009] Decorative hanging panels are installed between the cast-in-place sections.

[0010] The glass mounting groove is provided with a sub-frame, and the double-layered laminated glass is installed on the pressure line by sealant. The pressure line is installed on the sub-frame.

[0011] The advantages of this utility model are:

[0012] (1) Using precast concrete slabs can effectively avoid the disadvantages of traditional on-site casting, such as long construction period, many safety hazards, serious dust and noise pollution, and limited construction work area.

[0013] (2) The installation method involves fixing the steel bars to the upper and lower beams by concrete pouring. This method has a short construction period, a small construction enclosure area in the station hall, and no need for large machinery to enter the station. Only some municipal roads are closed during nighttime construction.

[0014] (3) Precast concrete slabs not only serve the function of structural walls; the interior and exterior of precast concrete slabs are made of elastic decorative molding templates and matching auxiliary materials, concrete finishing coloring agents and concrete finishing protective agents, and the effect of indoor and outdoor artistic decoration is also fully considered.

[0015] (4) In terms of material selection, concrete components have good durability and heat insulation; large areas of glass embedded in the components can bring natural light into the room, achieving the purpose of integrating indoor and outdoor landscapes and saving energy and reducing emissions; combined with ventilation and smoke exhaust louvers, it can also take into account practical functions such as air conditioning and fire smoke exhaust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the elevation of the precast concrete slab of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the elevated station of this utility model;

[0018] Figure 3 This is a schematic diagram of the steel reinforcement assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the precast concrete slab and the existing structural beam above.

[0020] Figure 5 This is a schematic diagram showing the connection between the precast concrete slab and the existing structural beam below.

[0021] Figure 6 This is a cross-sectional view of the glass mounting groove in the middle of the precast concrete slab of this utility model;

[0022] Figure 7 This is a longitudinal sectional view of the glass mounting groove in the middle of the precast concrete slab of this utility model;

[0023] Figure 8 This is a longitudinal sectional view of the glass mounting groove at the bottom of the precast concrete slab of this utility model.

[0024] like Figures 1-8 As shown in the figure, the markings represent:

[0025] 1. Precast concrete slab; 101. Vertical reinforcement group; 102. First horizontal reinforcement group; 103. Second horizontal reinforcement group; 104. Third horizontal reinforcement group; 105. Diagonal reinforcement group; 106. Diagonal reinforcing reinforcement group; 2. Ventilation and smoke exhaust louvers; 3. Double-layer laminated glass; 4. Rebar installation; 5. Upper existing structural beam; 6. Cast-in-place section; 7. Lower existing structural beam; 8. Leveling grouting layer; 9. Decorative hanging panel; 10. Subframe; 11. Sealant; 12. Line marking; 13. Municipal road; 14. Ground floor; 15. Station hall public area; 16. Platform. Detailed Implementation

[0026] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0027] Example: Figures 1-8As shown, this embodiment relates to a precast concrete slab integrating structure and decoration for use in the renovation of elevated stations. The elevated station includes a ground floor 14, a station hall public area 15, and a platform 16 arranged sequentially from bottom to top. The ground floor 14 is flanked by municipal roads 13. The precast concrete slab 1 is mainly composed of steel reinforcement groups and concrete encasing the steel reinforcement groups. The steel reinforcement groups include inverted U-shaped steel reinforcement groups, inverted trapezoidal steel reinforcement groups, and diagonal reinforcing steel reinforcement groups 106. The inverted U-shaped steel reinforcement groups consist of two vertical steel reinforcement groups 101 and a first horizontal steel reinforcement group 102. The inverted trapezoidal steel reinforcement groups consist of a second horizontal steel reinforcement group 103, a third horizontal steel reinforcement group 104, and two diagonal steel reinforcement groups 105. There are two diagonal reinforcing steel reinforcement groups 106. The two ends of the first horizontal reinforcing bar group 102 are respectively connected to the bottom of the two vertical reinforcing bar groups 101. The length of the second horizontal reinforcing bar group 103 is less than the length of the third horizontal reinforcing bar group 104. The two ends of the third horizontal reinforcing bar group 104 are respectively connected to the middle of the two vertical reinforcing bar groups 101. The two ends of the diagonal reinforcing bar group 105 are respectively connected to the second horizontal reinforcing bar group 103 and the vertical reinforcing bar group 101. The two diagonal reinforcing bar groups 106 are respectively installed inside the two diagonal reinforcing bar groups 103. The two ends of the diagonal reinforcing bar group 106 are respectively connected to the second horizontal reinforcing bar group 103 and the third horizontal reinforcing bar group 104.

[0028] like Figures 1-2 as well as Figures 6-8 As shown, a louver mounting groove is provided on the upper part of the precast concrete slab 1 for installing ventilation and smoke exhaust louvers 2. Glass mounting grooves are provided in the middle and lower parts of the precast concrete slab 1 for installing double-layer laminated glass 3. In this embodiment, a subframe 10 is provided in the glass mounting groove. The double-layer laminated glass 3 is installed on the pressure line 12 by sealant 11. The pressure line 12 is installed on the subframe 10. The subframe 10 is made of galvanized steel, the sealant 11 is made of neutral silicone weather-resistant sealant, and the pressure line 12 is made of powder-coated aluminum alloy pressure line.

[0029] like Figures 1-2 as well as Figures 4-5 As shown, the top two sides of the precast concrete slab 1 are connected to the existing structural beam 5 above by reinforcing bars 4. Cast-in-place sections 6 are poured between the top two sides of the precast concrete slab 1 and the existing structural beam 5 above, and decorative hanging panels 9 are installed between the cast-in-place sections 6. The bottom of the precast concrete slab 1 is connected to the existing structural beam 7 below by reinforcing bars 4, and a leveling grouting layer 8 is poured between the bottom of the precast concrete slab 1 and the existing structural beam 7 below.

[0030] In this embodiment, the precast concrete slabs are prefabricated in the main factory, with partial on-site reinforcement and concrete pouring, shortening the on-site construction time and utilizing the station's shutdown window at night for rapid hoisting and pouring. For the renovation of existing elevated stations, the main structure (beams, slabs, columns) of the station has already been determined, and the precast concrete slabs to be installed later need to be hoisted outdoors and then horizontally pushed between the upper and lower beams.

[0031] The beneficial technical effects of this embodiment are as follows:

[0032] (1) Using precast concrete slabs can effectively avoid the disadvantages of traditional on-site casting, such as long construction period, many safety hazards, serious dust and noise pollution, and limited construction work area.

[0033] (2) The installation method involves fixing the steel bars to the upper and lower beams by concrete pouring. This method has a short construction period, a small construction enclosure area in the station hall, and no need for large machinery to enter the station. Only some municipal roads are closed during nighttime construction.

[0034] (3) Precast concrete slabs not only serve the function of structural walls; the interior and exterior of precast concrete slabs are equipped with elastic decorative molding templates and matching auxiliary materials, concrete finishing colorants and concrete finishing protectants, and the effect of indoor and outdoor artistic decoration is also fully considered.

[0035] (4) In terms of material selection, concrete components have good durability and heat insulation; large areas of glass embedded in the components can bring natural light into the room, achieving the purpose of integrating indoor and outdoor landscapes and saving energy and reducing emissions; combined with ventilation and smoke exhaust louvers, it can also take into account practical functions such as air conditioning and fire smoke exhaust.

[0036] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A precast concrete slab integrating structure and decoration for use in the renovation of elevated stations, characterized in that: The precast concrete slab is composed of reinforcing bars and concrete encasing the reinforcing bars. The reinforcing bars include inverted U-shaped reinforcing bars, inverted trapezoidal reinforcing bars, and diagonally reinforcing bars. The inverted U-shaped reinforcing bars consist of two vertical reinforcing bars and one first horizontal reinforcing bar. The inverted trapezoidal reinforcing bars consist of one second horizontal reinforcing bar, one third horizontal reinforcing bar, and two diagonally reinforcing bars. There are two diagonally reinforcing bars. The upper part of the precast concrete slab is provided with a louver mounting groove for installing ventilation and smoke exhaust louvers. The middle and lower parts of the precast concrete slab are provided with glass mounting grooves for installing double-layer laminated glass.

2. The precast concrete slab integrating structure and decoration for use in the renovation of elevated stations as described in claim 1, characterized in that: The two ends of the first horizontal reinforcing bar group are respectively connected to the bottom of the two vertical reinforcing bar groups. The length of the second horizontal reinforcing bar group is less than the length of the third horizontal reinforcing bar group. The two ends of the third horizontal reinforcing bar group are respectively connected to the middle of the two vertical reinforcing bar groups. The two ends of the diagonal reinforcing bar group are respectively connected to the second horizontal reinforcing bar group and the vertical reinforcing bar group. The two diagonal reinforcing bar groups are respectively installed inside the two diagonal reinforcing bar groups. The two ends of the diagonal reinforcing bar group are respectively connected to the second horizontal reinforcing bar group and the third horizontal reinforcing bar group.

3. The precast concrete slab integrating structure and decoration applied to the renovation of elevated stations as described in claim 1, characterized in that: The top two sides of the precast concrete slab are connected to the existing upper structural beam by rebar anchoring, and a cast-in-place section is poured between the top two sides of the precast concrete slab and the existing upper structural beam; the bottom of the precast concrete slab is connected to the existing lower structural beam by rebar anchoring, and a leveling grouting layer is poured between the bottom of the precast concrete slab and the existing lower structural beam.

4. The precast concrete slab integrating structure and decoration for use in the renovation of elevated stations as described in claim 3, characterized in that: Decorative hanging panels are installed between the cast-in-place sections.

5. The precast concrete slab integrating structure and decoration applied to the renovation of elevated stations as described in claim 1, characterized in that: The glass mounting groove is provided with a sub-frame, and the double-layered laminated glass is installed on the pressure line by sealant. The pressure line is installed on the sub-frame.

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