CN216342266U - Mortise and tenon type rail top air channel structure for subway station - Google Patents
Mortise and tenon type rail top air channel structure for subway station Download PDFInfo
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- CN216342266U CN216342266U CN202122264385.0U CN202122264385U CN216342266U CN 216342266 U CN216342266 U CN 216342266U CN 202122264385 U CN202122264385 U CN 202122264385U CN 216342266 U CN216342266 U CN 216342266U
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Abstract
The utility model relates to a mortise and tenon type rail top air channel structure for a subway station, which comprises an air channel bottom plate and an air channel side plate, wherein the air channel side plate comprises a side plate lower plate body and a side plate upper plate body integrally formed at the bottom of the station bottom plate; the air duct bottom plate is connected to the bottom of the side plate lower plate body. Among the above-mentioned rail top air duct structure, adopt curb plate upper plate body and curb plate lower plate body joggle and through the fixed air duct curb plate structure of bolt, convenient operation, connection are reliable, can simplify construction process effectively, shorten construction period, because curb plate upper plate body and station medium plate integrated into one piece, have avoided the condition of trompil or pre-buried component on the station medium plate, guarantee the structural strength and the durability of station medium plate.
Description
Technical Field
The utility model belongs to the technical field of rail transit engineering, and particularly relates to a mortise and tenon type rail top air duct structure for a subway station.
Background
The rail top air duct of the underground station of the urban rail transit is an important component in a ventilation system of the subway station, and is generally a U-shaped structure suspended below a middle plate of the station. Because of the particularity of the position, the steel bar-type rail top air duct is not poured synchronously with a main structure of a station, but is constructed after a scaffold and a template are erected again after the construction of the station structure is finished as a secondary structure, and steel bars are reserved on the lower portion of a middle plate of the station in advance to realize the connection of the rail top air duct and the middle plate structure during construction. Because construction space is narrow and small, and the formwork is influenced by the station medium plate with pouring, and the construction is wasted time and energy, and construction quality is difficult to guarantee usually.
At present, a prefabricated rail top air channel is adopted in a part of urban rail transit underground stations, for example, the prefabricated rail top air channel is fixed at an opening of a station middle plate, and a complete structure is formed by cast-in-place after hoisting alignment; or the prefabricated rail top air channel is fixed through bolts embedded in the middle plate of the station. These mounting means need trompil or pre-buried component on the station medium plate, all can weaken medium plate structural strength to a certain extent, are unfavorable for station structural safety.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a mortise and tenon type rail top air duct structure for a subway station, which can at least solve part of defects in the prior art.
The utility model relates to a mortise and tenon type rail top air channel structure for a subway station, which comprises an air channel bottom plate and an air channel side plate, wherein the air channel side plate comprises a side plate lower plate body and a side plate upper plate body integrally formed at the bottom of the station bottom plate; the air duct bottom plate is connected to the bottom of the side plate lower plate body.
In one embodiment, the air duct side plate has two sides, and the air duct bottom plate is connected to the bottoms of the two side plate lower plate bodies respectively.
As an embodiment, the air duct bottom plate and the lower plate body of the two side plates are integrally prefabricated and molded.
In one embodiment, the height of the tongue is smaller than the groove depth of the groove, and/or the thickness of the tongue is smaller than the groove width of the groove.
As one embodiment, a grouting sleeve is embedded in the tenon joint and grouting sealing is carried out on the tenon joint.
As one embodiment, the lower plate body of the side plate comprises a plurality of lower plate sections which are sequentially spliced along the longitudinal direction of the air duct, and the bolt penetrates through each lower plate section.
As one implementation mode, the two adjacent lower side plate segments are spliced by adopting a mortise-tenon splicing structure.
As one embodiment, pre-buried iron pieces are respectively arranged in the tenon and the groove walls on the two sides of the mortise, and each pre-buried iron piece is correspondingly provided with a pin hole.
The utility model has at least the following beneficial effects:
according to the rail top air channel structure provided by the utility model, at least part of components can be prefabricated and produced on line, so that the construction efficiency can be improved, and the construction cost can be reduced; the air duct side plate adopts the side plate upper plate body and the side plate lower plate body joggle and passes through the fixed structure of bolt, convenient operation, connection are reliable, can simplify construction process effectively, shorten construction period, because the side plate upper plate body and station medium plate integrated into one piece have avoided the condition of trompil or pre-buried component on the station medium plate, guarantee the structural strength and the durability of station medium plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a mortise and tenon type rail-top air duct structure provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a joggled duct side panel.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a mortise and tenon type rail-top air duct structure for a subway station, including an air duct bottom plate 22 and an air duct side plate 21, where the air duct side plate 21 includes a side plate lower plate body 212 and a side plate upper plate body 211 integrally formed at the bottom of the station middle plate, the top end of the side plate lower plate body 212 is joggled with the bottom end of the side plate upper plate body 211, and a bolt 213 is used at the joggled position to penetrate through a corresponding tenon and mortise so as to fixedly connect the side plate lower plate body 212 to the side plate upper plate body 211; the air duct bottom plate 22 is connected to the bottom of the side plate lower plate body 212.
The air duct bottom plate 22 and the air duct side plate 21 are preferably both of reinforced concrete structure. In one embodiment, the station middle plate is a cast-in-place structure, and the side plate upper plate body 211 and the station middle plate are integrally cast in place; of course, the upper plate body 211 of the side plate can also be prefabricated and molded integrally with the middle plate of the station.
According to specific station structure, wind channel curb plate 21 can be the one side, can enclose through structure side wall, wind channel bottom plate 22, wind channel curb plate 21 and station medium plate and close and form a ventilation air flue, correspondingly, the accessible sets up mode such as bracket on the structure side wall and realizes being connected between structure side wall and the wind channel bottom plate 22. In another embodiment, as shown in fig. 1, the air duct side plate 21 has two sides, a ventilation air duct can be enclosed by the two side air duct side plates 21, the air duct bottom plate 22 and the station middle plate, the two side air duct side plates 21 all adopt the split joggle joint structure, and correspondingly, the air duct bottom plate 22 is connected to the bottoms of the two side plate lower plate bodies 212 respectively.
Preferably, the lower plate body 212 of the side plate is a prefabricated plate, and the air duct bottom plate 22 is also a prefabricated plate, so that the construction period can be greatly shortened, and the construction cost can be reduced. Further preferably, the air duct bottom plate 22 and the side plate lower plate body 212 are integrally prefabricated and formed, and in case of two sides of the air duct side plate 21, the air duct bottom plate 22 and the two side plate lower plate bodies 212 are integrally prefabricated and formed; the air duct bottom plate 22 and the side plate lower plate body 212 are integrally prefabricated and formed, so that the construction efficiency can be further improved, and the sealing performance of the rail top air duct can be effectively improved.
As for the arrangement of the bolt 213, it can be understood that a pin hole 214 needs to be formed on the corresponding tenon, and pin holes 214 need to be formed on the two side walls of the corresponding mortise, and after the bolt 213 passes through the mortise and the pin hole 214 on the tenon, the tenon and the mortise can be fixed together, that is, the lower plate body 212 of the side plate and the upper plate body 211 of the corresponding side plate are fixed together, so as to prevent the lower plate body 212 of the side plate from separating from the upper plate body 211 of the side plate under the action of gravity.
Further preferably, as shown in fig. 1, embedded iron members are disposed in the tenon and the two side walls of the mortise, pin holes 214 are correspondingly disposed on each embedded iron member, and the bolt 213 correspondingly passes through the embedded iron members in the tenon and the mortise when passing through the tenon and the mortise. The pre-buried iron pieces can effectively improve the stress performance of the tenon and the mortise and ensure the structural strength and the working reliability of the joggle joint.
The bolt 213 is generally a metal bolt, such as a steel bolt. In an alternative embodiment, the bolt 213 may be a plate bolt, and the pin hole 214 is a square hole; in another embodiment, the bolt-type bolt 213 is configured with a lock nut, so that the operational reliability of the joggle structure can be further improved, and the problem that the bolt 213 is separated due to vibration and other reasons in the long-term service process can be avoided. It will be appreciated that there are a plurality of latches 213 provided on each side of the duct 21, each latch 213 preferably being provided in series longitudinally along the duct.
According to the rail top air channel structure provided by the embodiment, at least part of components can be prefabricated and produced on line, so that the construction efficiency can be improved, and the construction cost can be reduced; air duct curb plate 21 adopts the structure that plate body 212 joggle under plate body 211 and the curb plate and fix through bolt 213 on the curb plate, convenient operation, connection are reliable, can simplify construction process effectively, shorten construction period, because plate body 211 and station medium plate integrated into one piece on the curb plate, avoided the condition of trompil or pre-buried component on the station medium plate, guarantee the structural strength and the durability of station medium plate.
Because the rail top air duct is longer, the above-mentioned curb plate lower plate body 212 is preferred to adopt the mode that the segmentation set up, and the prefabrication production, transportation, storage and installation construction of being convenient for, promptly curb plate lower plate body 212 includes along the vertical a plurality of lower curb plate sections of splicing in proper order of air duct, all wear to be equipped with on each lower curb plate section bolt 213. The duct bottom plate 22 is also preferably arranged in a segmented manner; in the case where the duct bottom 22 and the side plate lower plate 212 are integrally prefabricated, the bottom plate segment and the lower side plate segment are integrally prefabricated. Preferably, a plurality of pin holes 214 are formed in each lower plate segment to secure the dovetail joint.
In a preferred scheme, two adjacent lower side plate sections are spliced by adopting a mortise and tenon splicing structure, the mortise and tenon splicing structure can adopt a conventional tongue-and-groove splicing structure or a mortise and tenon splicing structure, and the details are not described herein; during actual construction, the lower side plate segment to be installed longitudinally deviates from the installed lower side plate segment by a distance, after the joggled part (such as a mortise) of the lower side plate segment to be installed is matched with the joggled part (such as a tenon) on the upper side plate body 211 of the side plate, the lower side plate segment to be installed is longitudinally pushed to be spliced with the installed lower side plate segment, the splicing effect can be ensured, in addition, the joggled matching between the lower side plate segment to be installed and the upper side plate body can play a better guiding effect, and the splicing quality between the lower side plate segments is ensured.
Preferably, the height of the tenon is smaller than the groove depth of the mortise, and/or the thickness of the tenon is smaller than the groove width of the mortise; preferably, the design difference between the height of the tenon and the depth of the mortise is within the range of 3-10 mm, and the design difference between the thickness of the tenon and the width of the mortise is within the range of 2-8 mm. Based on this design, can avoid influencing the quality of being connected between plate body 211 and the plate body 212 under the curb plate on the curb plate because of reasons such as machining error, can reduce the cast-in-place construction precision of plate body 211 on the curb plate and the prefabricated machining precision of plate body 212 under the curb plate correspondingly to improve the installation effectiveness in track top wind channel.
Preferably, a grouting sleeve is embedded in the tenon joint and grouting sealing is carried out on the tenon joint, so that the sealing performance of the rail top air channel can be effectively improved; particularly, when the design difference exists between the height of the tenon and the depth of the mortise and/or the design difference exists between the thickness of the tenon and the width of the mortise, the pouring grout can fill the gaps, the sealing performance is ensured, and meanwhile, a steel-concrete structure for pouring concrete grout and the bolt 213 can be formed at the tenon joint, so that the structural strength, the stress performance and the working reliability of the tenon joint are further improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a mortise type rail top wind channel structure for subway station, includes wind channel bottom plate and wind channel curb plate, its characterized in that: the air duct side plate comprises a side plate lower plate body and a side plate upper plate body which is integrally formed at the bottom of the station middle plate, the top end of the side plate lower plate body is in joggle joint with the bottom end of the side plate upper plate body, and a bolt penetrates through a corresponding tenon and a mortise at the joggle joint to fixedly connect the side plate lower plate body to the side plate upper plate body; the air duct bottom plate is connected to the bottom of the side plate lower plate body.
2. The mortise and tenon type rail-top air duct structure for a subway station as claimed in claim 1, wherein: the air duct side plate is provided with two sides, and the air duct bottom plate is respectively connected with the bottoms of the lower plate bodies of the two side plates.
3. The mortise and tenon type rail-top air duct structure for a subway station as claimed in claim 2, wherein: the air duct bottom plate and the two side plate lower plate bodies are integrally prefabricated and molded.
4. The mortise and tenon type rail-top air duct structure for a subway station as claimed in claim 1, wherein: the height of the tenon is smaller than the depth of the mortise, and/or the thickness of the tenon is smaller than the width of the mortise.
5. The mortise and tenon type rail-top air duct structure for a subway station as claimed in claim 1 or 4, wherein: and a grouting sleeve is embedded in the tenon joint and is used for grouting and sealing the tenon joint.
6. The mortise and tenon type rail top air duct structure for a subway station as claimed in any one of claims 1 to 4, wherein: the lower plate body of the side plate comprises a plurality of lower plate sections which are sequentially spliced along the longitudinal direction of the air duct, and the bolt is arranged on each lower plate section in a penetrating mode.
7. The mortise and tenon type rail-top air duct structure for the subway station as claimed in claim 6, wherein: and the adjacent two lower side plate sections are spliced by adopting a mortise and tenon splicing structure.
8. The mortise and tenon type rail-top air duct structure for a subway station as claimed in claim 1, wherein: and pre-buried iron pieces are arranged in the tenon and the groove walls on the two sides of the mortise, and pin holes are correspondingly formed in each pre-buried iron piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122264385.0U CN216342266U (en) | 2021-09-18 | 2021-09-18 | Mortise and tenon type rail top air channel structure for subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122264385.0U CN216342266U (en) | 2021-09-18 | 2021-09-18 | Mortise and tenon type rail top air channel structure for subway station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216342266U true CN216342266U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122264385.0U Active CN216342266U (en) | 2021-09-18 | 2021-09-18 | Mortise and tenon type rail top air channel structure for subway station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216342266U (en) |
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2021
- 2021-09-18 CN CN202122264385.0U patent/CN216342266U/en active Active
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