CN213115355U - Subway station RPC concrete wind channel - Google Patents
Subway station RPC concrete wind channel Download PDFInfo
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- CN213115355U CN213115355U CN202020375972.XU CN202020375972U CN213115355U CN 213115355 U CN213115355 U CN 213115355U CN 202020375972 U CN202020375972 U CN 202020375972U CN 213115355 U CN213115355 U CN 213115355U
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Abstract
The utility model discloses a subway station RPC concrete air duct, the air duct structure of which comprises a left side plate, a right side plate and a bottom plate; the air duct structure is hung on a floor above the track; the top of the plate body of the left side plate and the right side plate is provided with a mounting beam, and the bottom of the plate body is provided with a joist; the bottom plate is arranged on the left joist and the right joist; the left and right side plates are made of RPC concrete precast slabs, and bidirectional fiber grids are arranged in the left and right side plates. Furthermore, the utility model discloses a mode that the wind channel has adopted inflation screw connection + epoxy mortar to bond is fixed, and this scheme structure of adoption possesses light in weight, corrosion resisting property is good, the rate of leaking out is little, install advantages such as convenient.
Description
Technical Field
The utility model relates to a subway station wind channel structure field, in particular to subway station RPC concrete wind channel.
Background
Subway station wind channel is in the top in train parking stall, and its effect is: and pumping waste gas exhausted by the train air conditioner. At present, for the safety of passengers, a safety protection glass door is arranged on the platform and needs to form an isolation space together with the air channel.
At present, the known subway station air duct structure is a groove-shaped structure, and the construction form mainly comprises: cast-in-place and prefabricated.
The cast-in-place mode is secondary construction, and needs to reserve connecting reinforcing steel bars at the bottom of an original floor slab, install inner and outer templates and pour the upper layer. However, the construction quality is difficult to control, the construction cost is high, and the construction time is long.
The prefabricated air duct structure has an integral structure and an assembled structure in the known scheme, and has the common characteristics of large product thickness and heavy single weight, and the prefabricated air duct structure penetrates through an upper floor during installation and is connected and hoisted by a screw. However, in practical use, the structure is prone to water leakage, corrosion, air leakage and other risks or problems.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model aims at: the utility model provides a subway station RPC concrete wind channel, its adopt the prefabricated assembled structure after the improvement, not only can alleviate structure weight, but also can stop technical problem such as the corruption of leaking and leaking out.
The utility model adopts the technical proposal that:
an RPC concrete air duct for a subway station is structurally a groove-shaped structure formed by assembling a left side plate, a right side plate and a bottom plate together, and is hung on a floor above a track; the plate body top of left side board and right side board is equipped with the installation roof beam, and its plate body bottom is equipped with the joist, just installation roof beam, joist and plate body constitute a zigzag structure, and the bottom plate is placed about on two joists, left side board and right side board all adopt RPC concrete precast slab, are equipped with two-way fiber grating in its inside.
In a further preferred scheme, an extension plate is further arranged below the joist of the right side plate and connected with the station shielding door.
In a further preferred scheme, the bottom plate comprises a flat plate and a grate plate, the grate plate is correspondingly arranged at an air outlet of the train air conditioner, and the flat plate is arranged in other sections.
In a further preferred scheme, the bottom plate is placed on the joists of the left side plate and the right side plate, and the bottom plate is bonded with the joists by epoxy resin glue.
In a further preferable scheme, the strength grade of the RPC concrete precast slab is not lower than 120MPa, and the thickness of the slab body is less than or equal to 30mm, so that the weight of the slab body is reduced while the strength of the slab body is ensured.
In a further preferred scheme, the thickness of the left side plate, the thickness of the right side plate and the thickness of the bottom plate are less than or equal to 30mm, so that the weight of the structure is reduced.
In a further preferred scheme, an epoxy resin mortar adjusting layer is arranged between the mounting beam and the floor slab, so that the safety and the stability of the hoisting structure are enhanced.
In a further preferred scheme, a sealing groove is formed in the bottom surface of the mounting beam, a mounting hole is formed in the groove, and an expansion screw is inserted into the mounting hole to fix the mounting beam.
In a further preferred scheme, the notch is sealed by fine aggregate concrete added with latex powder in the sealing groove, so that the corrosion of moisture and harmful gas in the air to the screw is avoided, and the maintenance work is reduced.
As another alternative, the left side plate may be replaced by a wall body to which an independent joist is fixed, and the bottom plate is placed on the independent joist and the joist of the right side plate.
In a further preferred scheme, a side sealing groove is formed in the side face of the independent joist, a side mounting hole is formed in the side sealing groove, and a fixing bolt is arranged in the side mounting hole to fix the independent joist on a wall body.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the air duct is prefabricated by RPC high-strength reactive powder concrete and a bidirectional fiber grating, so that the thickness of a product is less than or equal to 30mm, and the weight of the structure is greatly reduced.
2. The product has strength greater than or equal to 120MPa and has good structural strength and durability.
3. The wind channel adopts the hoisting mode of expansion screw connection, epoxy resin mortar bonding and leveling, the safety and the stability of the hoisting structure are enhanced, and the structure does not penetrate through the upper floor, so that the influence of the upper cleaning water leakage on the structure is avoided.
4. The exposed part of the bolt is designed with a closed notch and is closed by using a material with strong adhesive property, thereby avoiding the corrosion of moisture and harmful gas in the air to the screw rod and reducing the maintenance work.
Drawings
Fig. 1 is a longitudinal section structure diagram of an RPC concrete air duct of a subway station.
Fig. 2 is a three-dimensional structure diagram of an RPC concrete air duct of a subway station.
FIG. 3 is a schematic view of an in-board bi-directional fiber grid structure.
Fig. 4 is a schematic diagram of another embodiment of the present invention.
In the figure: 1-right side plate, 2-left side plate, 3-bottom plate, 4-sealing groove, 5-mounting hole, 6-epoxy resin mortar adjusting layer, 7-expansion screw, 8-floor, 9-joist, 10-mounting beam, 11-extension plate, 12-grid plate, 13-air duct plate joint, 14-bidirectional fiber grating, 15-independent joist and 16-side sealing groove.
Detailed Description
The following is combined with the attached drawings. The utility model is further explained.
Example 1:
as shown in fig. 1-3, the RPC concrete air duct for the subway station is formed by assembling a left side plate 2, a right side plate 1 and a bottom plate 3 to form a groove-shaped structure, and is hung on a floor slab 8 above a track.
The top of the plate body of the left side plate 2 and the right side plate 1 is provided with an installation beam 10, the bottom of the plate body is provided with a joist 9, and the installation beam 10, the joist 9 and the plate body form a Z-shaped structure.
The right side plate 1 is different from the left side plate 2 in that an extension plate 11 is further provided below the joist of the right side plate 1, and the extension plate 11 is connected to the station shield door.
The bottom plate 3 is placed on the joists 9 on the left and right sides. During specific construction, a layer of epoxy resin glue is coated on the joist, and then the bottom plate 3 is obliquely placed on the joists 9 in the left side plate 2 and the right side plate 1 and placed in the middle.
The bottom plate 3 comprises two specifications of a flat plate and a grid plate. As shown in figure 2, during construction, according to design paper, a grate plate 12 is installed at the air outlet of the train air conditioner correspondingly, and flat plates are installed at the rest of the fields.
Measuring a drawn line on a subway station installation working surface, determining the positions of a left side plate and a right side plate and the positions of screw holes, determining the installation elevations of the left side plate and the right side plate by using the drawn line, and drilling holes.
The bottom surface of the mounting beam 10 is provided with a sealing groove 4, and a mounting hole 5 is arranged in the groove. During specific construction, firstly, a layer of epoxy resin mortar is coated on the top surface of the mounting beam 10, the side plate is lifted by a tool, the expansion screw 7 is inserted into the mounting hole 5, the bolt is screwed until the stay wire is level and level in elevation, redundant mortar is removed, the leveling layer mortar is enabled to be full, and the epoxy resin mortar is condensed to form the epoxy resin mortar adjusting layer 6.
After the expansion screw 7 is screwed down, the sealing groove 4 is sealed by fine aggregate concrete added with latex powder, so that the corrosion of moisture and harmful gas in the air to the screw rod is avoided, and the maintenance work is reduced.
The whole air duct is formed by splicing a plurality of groove-shaped structures, and epoxy resin glue is coated on two sections of side plates at the joint 13 of the air duct plate, so that the joint is closed.
The left side plate 2 and the right side plate 1 are both made of RPC concrete precast slabs, the strength grade is not lower than 120Mpa, and the plate thickness is not more than 30mm, so that the plate weight is reduced while the plate strength is ensured.
Inside the left and right side panels 2, 1, a bi-directional fiber grating 14 is provided, thereby increasing the bending strength and corrosion resistance of the panel body.
When the left side and the right side are prefabricated, the bidirectional fiber grating 14 is firstly cut to the size required by a product, the Z-shaped top surface of the plate body is bent by heat treatment, and the fiber grating is tensioned on a die; and further, adding water into each component material of the reactive powder concrete, stirring, pouring into a mould, vibrating, maintaining, and inspecting and leaving the factory after the strength is higher than the designed strength grade.
Example 2:
another embodiment of the present invention is shown in fig. 4. In this embodiment, the left side panel 2 is eliminated and the left side panel 2 is replaced with a car station wall.
In the specific implementation, firstly, measuring the installation base line of the joist on the wall body of the station, punching the wall body, installing expansion bolts, fixing an independent joist 15 on the wall body of the station, arranging a side sealing groove 16 on the side surface of the independent joist 15, arranging a side installation hole in the side sealing groove 16, and arranging a fixing bolt in the side installation hole to fix the independent joist 15 on the wall body.
After the bolts are screwed down, the side sealing groove 16 is sealed by fine aggregate concrete added with emulsion powder in the side sealing groove 16, epoxy resin mortar is smeared on the independent joist 15, and then the bottom plate 3 is placed.
The structure and mounting method of the right side plate 1 in this embodiment are the same as those in embodiment 1.
The basic principles and the main features of the solution and the advantages of the solution have been shown and described above. It will be understood by those skilled in the art that the present solution is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principles of the solution, but that various changes and modifications may be made to the solution without departing from the spirit and scope of the solution, and these changes and modifications are intended to be within the scope of the claimed solution. The scope of the present solution is defined by the appended claims and equivalents thereof.
Claims (9)
1. An RPC concrete air duct for a subway station is characterized in that the structure of the RPC concrete air duct is a groove-shaped structure formed by assembling a left side plate, a right side plate and a bottom plate together, and the RPC concrete air duct is hung on a floor above a track; the top of the plate body of the left side plate and the right side plate is provided with a mounting beam, the bottom of the plate body is provided with a joist, the mounting beam, the joist and the plate body form a Z-shaped structure, and the bottom plate is placed on the left joist and the right joist; the left side board and the right side board are both made of RPC concrete precast slabs, and two-way fiber grids are arranged in the left side board and the right side board.
2. The RPC concrete air duct for subway stations as claimed in claim 1, wherein an extension plate is further provided under the joist of said right side plate, said extension plate being connected to the platform screen door.
3. The RPC concrete air duct at a subway station as claimed in claim 1, wherein said bottom plate comprises two specifications of flat plate and grate plate, and said grate plate is correspondingly installed at the air outlet of the air conditioner of the train, and said flat plate is installed at the rest of the area.
4. The RPC concrete air duct for subway stations as claimed in claim 1, wherein said bottom plate is bonded to said joists with epoxy glue.
5. The RPC concrete air duct of a subway station as claimed in claim 1, wherein the strength grade of the RPC concrete precast slab is not less than 120MPa, and the thickness of the slab body is not more than 30 mm.
6. The RPC concrete air duct for a subway station as claimed in claim 1, wherein an epoxy resin mortar adjustment layer is provided between the mounting beam and the floor slab.
7. The RPC concrete air duct for subway stations as claimed in claim 1, wherein said mounting beam has a sealing groove on its bottom surface, and a mounting hole is formed in said groove, and an expansion screw is inserted into said mounting hole to fix said mounting beam.
8. The RPC concrete duct for subway stations as claimed in claim 1, wherein said left side plate can be replaced by a wall body fixed with independent joists, and said bottom plate is placed on the joists of the independent joists and said right side plate.
9. The RPC concrete air duct at a subway station as claimed in claim 8, wherein the side surface of the independent joist is provided with a side sealing groove, a side mounting hole is arranged in the side sealing groove, and a fixing bolt is arranged in the side mounting hole to fix the independent joist on the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020375972.XU CN213115355U (en) | 2020-03-23 | 2020-03-23 | Subway station RPC concrete wind channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020375972.XU CN213115355U (en) | 2020-03-23 | 2020-03-23 | Subway station RPC concrete wind channel |
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| Publication Number | Publication Date |
|---|---|
| CN213115355U true CN213115355U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020375972.XU Active CN213115355U (en) | 2020-03-23 | 2020-03-23 | Subway station RPC concrete wind channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458042A (en) * | 2022-02-22 | 2022-05-10 | 中建八局轨道交通建设有限公司 | Construction method for newly building plate above existing subway station rail-mounted area |
-
2020
- 2020-03-23 CN CN202020375972.XU patent/CN213115355U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458042A (en) * | 2022-02-22 | 2022-05-10 | 中建八局轨道交通建设有限公司 | Construction method for newly building plate above existing subway station rail-mounted area |
| CN114458042B (en) * | 2022-02-22 | 2023-08-11 | 中建八局轨道交通建设有限公司 | Construction method for newly-built plate above rail-mounted area of existing subway station |
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