阅读说明：本技术 一种适用于地铁车站的新型预制轨顶风道 (Novel prefabricated rail top wind channel suitable for subway station ) 是由 刘岩 王呼佳 高鲲 杨朋 孙琮涵 岑陈斌 伍艺 孙双祥 朱宏海 倪安斌 喻波 于 2020-06-22 设计创作，主要内容包括：一种适用于地铁车站的新型预制轨顶风道,以有效避免中板预埋件与轨顶风道发生冲突,提高预制构件的耐久性和施工效率,保证施工质量。各预制风道节段由侧板构件、横梁构件、底板构件和内侧板构件拼装而成；所述侧板构件的横向两侧具有竖向延伸的侧板柱,侧板柱的上端通过第一预埋连接构件与由车站中板底面下凸的中板纵梁固定连接。横梁构件的内端通过卡接结构与车站侧墙形成固定连接,外端支撑在侧板柱上,且通过连接组件与侧板柱固定连接。底板构件支撑在两侧横梁构件的顶面上,且通过固定构件与横梁构件固定连接。内侧板构件的上端通过第二预埋连接构件与车站中板固定连接,下端通过螺栓组件与底板构件的内侧固定连接。(The utility model provides a novel prefabricated rail top wind channel suitable for subway station to effectively avoid medium plate built-in fitting and rail top wind channel to take place the conflict, improve prefabricated component's durability and efficiency of construction, guarantee construction quality. Each prefabricated air duct section is formed by assembling side plate components, cross beam components, bottom plate components and inner side plate components; the horizontal both sides of curb plate component have the curb plate post of vertical extension, the upper end of curb plate post through first pre-buried connecting element with by station medium plate bottom surface convex down's medium plate longeron fixed connection. The inner of crossbeam component forms fixed connection through joint structure and station side wall, and the outer end supports on the curb plate post, and through coupling assembling and curb plate post fixed connection. The floor member is supported on the top surfaces of the cross members on both sides, and is fixedly connected to the cross members by fixing members. The upper end of the inner side plate component is fixedly connected with the station middle plate through a second embedded connecting component, and the lower end of the inner side plate component is fixedly connected with the inner side of the bottom plate component through a bolt component.)

1. The utility model provides a novel prefabricated rail top wind channel suitable for subway station, rail top wind channel is formed by the vertical butt joint of prefabricated wind channel segment, and each prefabricated wind channel segment forms fixed connection, characterized by with station side wall (1) and station medium plate (2): each prefabricated air duct section is formed by assembling side plate components (10), cross beam components (20), bottom plate components (30) and inner side plate components (40); the transverse two sides of the side plate component (10) are provided with side plate columns (12) which extend vertically, and the upper ends of the side plate columns (12) are fixedly connected with a middle plate longitudinal beam (2a) which is protruded downwards from the bottom surface of the middle plate (2) in the station through a first embedded connecting component (2 b); the inner end of the beam member (20) is fixedly connected with the station side wall (1) through a clamping structure, and the outer end of the beam member is supported on the side plate column (12) and is fixedly connected with the side plate column (12) through a connecting assembly; the bottom plate members (30) are supported on the top surfaces of the cross beam members (20) on the two sides and are fixedly connected with the cross beam members (20) through fixing members; the upper end of the inner side plate component (40) is fixedly connected with the station middle plate (2) through a second embedded connecting component (2c), and the lower end of the inner side plate component is fixedly connected with the inner side of the bottom plate component (30) through a bolt component; and a space for the middle plate embedded penetrating pipe (3) to pass through is formed between the cross beam members (20) on the two sides and between the inner side plate member (40) and the station side wall (1).

2. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 1, characterized in that: the length of the side plate component (10), the length of the bottom plate component (30) and the length of the inner side plate component (40) are matched with the width of the screen door, and a screen door mounting sleeve (14) is embedded in the lower part of each side plate column (12); and contact net mounting sleeves (22) are embedded at intervals along the length direction at the bottom of the cross beam member (20).

3. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 2, characterized in that: the side plate members (10) are integrally formed by an outer side plate (11) and side plate columns (12), the side plate columns (12) are positioned on two transverse sides of the outer side plate (11), and brackets (13) for supporting the inner ends of the cross beam members (20) are arranged on the inner sides of the lower parts of the side plate columns (12); the connecting assembly is connected with a connecting sleeve embedded at the inner end of the cross beam member (20) and a bolt penetrating through the cross beam member (20) and connected with the connecting sleeve.

4. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 3, characterized in that: the upper end of the outer side plate (11) is provided with an inward-inclined section (16), and a third caulking joint (53) is arranged between the inward-inclined section (16) and the middle plate longitudinal beam (2 a); a longitudinal rib (15) is provided on the lower portion of the inner plate surface of the outer plate (11), the outer side of the floor member (30) is supported by the longitudinal rib (15), and a second caulking (52) is provided between the outer end surface of the floor member (30) and the inner plate surface of the outer plate (11).

5. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 1, characterized in that: the clamping structure comprises a positioning pit (1a) and a boss structure (21) which are matched, the positioning pit (1a) is pre-buried on a station side wall (1) at a position corresponding to the inner end of the cross beam member (20), the boss structure (21) is arranged at the inner end of the cross beam member (20), the inner end of the cross beam member (20) extends into the positioning pit (1a), and mortar is filled between the positioning pit and the boss structure.

6. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 1, characterized in that: the upper end of the inner side plate component (40) is provided with a top rib (42) contacted with the bottom surface of the station middle plate (2), and through holes for the second embedded connecting components (2c) to pass through are formed in the top rib (42) at intervals along the length direction.

7. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 1 or 6, characterized in that: the bottom plate member (30) is composed of an inner bottom plate member (31), an outer bottom plate member (33) and at least one middle bottom plate member (32), which are spliced in a plane manner in the length direction of the beam member (20); pressing strips are arranged at two ends of the top surface of the bottom plate component (30) in the length direction, and screws arranged at intervals penetrate through the pressing strips to fix the bottom plate component (30) on the cross beam component (20).

8. The novel prefabricated rail top air duct applicable to the subway station as claimed in claim 7, characterized in that: the inner side of the inner side bottom plate component (31) is provided with a side rib (311) and a boss (312) which are raised upwards, and a positioning groove (313) is formed between the side rib (311) and the boss (312); the lower end of the inner side plate component (40) is located in the positioning groove (313), the inner side plate component (40) is fixedly connected with the inner side bottom plate component (31) through bolts arranged at intervals along the length direction, and a first caulking joint (51) is filled in a gap of the positioning groove (313).

Technical Field

The invention relates to a subway station and related underground structural engineering, in particular to a novel full-prefabricated rail top air duct structure and assembly of the subway station.

Background

The rail top air duct of the subway station is a rectangular air duct type formed by fixing a concrete box type structure below a middle plate or on a side wall and enclosing the concrete box type structure, so that the functional requirements of the rail top air duct are met.

The rail top air duct is an indispensable internal component in a subway station and mainly plays three roles, wherein one role is the environment-controlled ventilation requirement of a station rail traveling area; secondly, the overhead contact net can be fixedly arranged on the bottom surface of the track air duct; and thirdly, the upper part of the subway shielding door or the safety door is fixed and installed on the side surface of the rail top air channel. In the conventional construction process, due to the influences of construction processes or processes such as a shield or a template trolley, the rail top air channel needs to enter for the second time after the middle plate is constructed or even after the tunnel between the sections is communicated, and reinforcing steel bars and concrete are bound on the rail top air channel, so that the construction process is complex, the construction period is long, the subsequent processes are correspondingly delayed, and the construction period is short; meanwhile, the secondary pouring of the rail top air channel is to carry out concrete pouring from the reserved hole of the middle plate, the construction quality is difficult to guarantee, and the frequently-occurring quality problems of non-compact vibration, exposed ribs and the like seriously affect the durability of the member.

In order to solve the problems, a small number of cases of adopting a prefabricated rail top air duct exist in the market at present, but the following problems exist, so that the popularization and the application are less: 1. the prefabricated rail top air duct adopts a section integral prefabrication scheme, so that the prefabricated rail top air duct is large in size, heavy in weight and inconvenient to produce and transport; 2. the stress stability in the vertical and line directions is poor; 3. the connecting components of the prefabricated rail top air duct, the side walls and the middle plate have the problems of durability and water resistance; 4. positioning is difficult when the component is installed; 5. the problem of collision between a middle plate embedded part (such as a sleeve) and a rail top air channel is not considered; 6. subsequent professional interface issues are not considered, such as: the installation interface of the contact net and the installation interface of the screen closing door.

Therefore, a set of novel full-prefabricated rail top air channel is necessary to be designed, the construction is convenient and quick, and the requirement of follow-up professional interfaces is met.

Disclosure of Invention

The invention aims to solve the technical problem of providing a novel prefabricated rail top air duct suitable for a subway station, so as to effectively avoid the collision between a middle plate embedded part and the rail top air duct, improve the durability and the construction efficiency of a prefabricated part and ensure the construction quality.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention relates to a novel prefabricated rail top air channel suitable for a subway station, which is formed by longitudinally butting prefabricated air channel sections, wherein each prefabricated air channel section is fixedly connected with a station side wall and a station middle plate, and the novel prefabricated rail top air channel is characterized in that: each prefabricated air duct section is formed by assembling side plate components, cross beam components, bottom plate components and inner side plate components; the transverse two sides of the side plate component are provided with vertically extending side plate columns, and the upper ends of the side plate columns are fixedly connected with a middle plate longitudinal beam protruding downwards from the bottom surface of a middle plate of a station through a first embedded connecting component; the inner end of the beam member is fixedly connected with the side wall of the station through a clamping structure, and the outer end of the beam member is supported on the side plate column and is fixedly connected with the side plate column through a connecting assembly; the bottom plate member is supported on the top surfaces of the cross beam members on the two sides and is fixedly connected with the cross beam members through the fixing members; the upper end of the inner side plate component is fixedly connected with the station middle plate through a second embedded connecting component, and the lower end of the inner side plate component is fixedly connected with the inner side of the bottom plate component through a bolt component; and a space for the middle plate embedded through pipe to pass through is formed between the cross beam members on the two sides and between the inner side plate member and the station side wall.

The lengths of the side plate components, the bottom plate components and the inner side plate components are matched with the width of the screen door, and a screen door mounting sleeve is embedded in the lower part of each side plate column; and contact net mounting sleeves are embedded at intervals at the bottom of the cross beam member along the length direction.

The beneficial effects of the invention are mainly reflected in the following aspects:

the four types of components are standardized, flow line production and standardized maintenance in a factory, so that the production efficiency can be greatly improved, and the component quality is easy to ensure;

structural measures are taken for the cross beam member and the station side wall, the side plate member and the station middle plate, the problem of poor durability is solved, and the side plate column is connected with the middle plate longitudinal beam, so that the problem of water leakage of the station middle plate through a connecting point with a rail top air channel is effectively solved;

the cross section of the rail is provided with an L-shaped framework, a stress system is clear, a space for a middle plate embedded through pipe to pass through is formed between the inner side plate component and the station side wall between the two side beam components, the problem of collision between a middle plate embedded sleeve and a rail top air channel is effectively solved, a convenient interface is provided for subsequent specialties, and the workload of the subsequent specialties is reduced;

and fourthly, the side plate components are integrally prefabricated, so that the integrity and the impression quality of the components are improved, and the number of the overall components and the model number of the template are reduced.

And all prefabricated components are of a planar structure, so that the prefabricated component is convenient to transport, not easy to damage and easy to position and install. The required prefabricated part mould model is extremely few, does benefit to and reduces mould expense, does benefit to prefabricated part batch production and promotes. In all stations of the whole line, only one set of mold combination is used for prefabricating the rail top air duct mold;

and sixthly, the construction process is simple, only hoisting, fine adjustment, fixation and assembly are needed, and the processes of erecting and adjusting a scaffold, supporting a formwork, reinforcing steel bars, pouring, removing the formwork, removing the scaffold and the like in a cast-in-place scheme are omitted. The single component is light in weight, is beneficial to assembling of small-sized on-site tooling equipment, is high in assembling efficiency, and can greatly save the on-site construction period and labor input.

Drawings

The present specification includes the following 14 figures:

FIG. 1 is a cross-sectional view of a novel prefabricated rail top duct suitable for a subway station according to the present invention;

FIG. 2 is a right side view of a novel prefabricated rail top duct of the present invention suitable for use in a subway station;

FIG. 3 is a longitudinal sectional view of a side panel column member in a novel prefabricated rail head duct applicable to a subway station according to the present invention;

FIG. 4 is a cross-sectional view of a side panel column member of a novel prefabricated rail top duct suitable for a subway station according to the present invention;

FIG. 5 is a longitudinal cross-sectional view of a cross member in a novel prefabricated rail top duct applicable to a subway station according to the present invention;

FIG. 6 is a plan view of a base plate member in a novel prefabricated rail top duct of the present invention, suitable for use in a subway station;

FIG. 7 is a cross-sectional view of an inboard floor member of a novel prefabricated rail head duct of the present invention, as applicable to a subway station;

FIG. 8 is a longitudinal cross-sectional view of an inner side plate member of a novel prefabricated rail top duct applicable to a subway station according to the present invention;

FIG. 9 is a front view of an inner side plate member of a novel prefabricated rail top duct applicable to a subway station according to the present invention;

FIG. 10 is a schematic view of a connection mode of a side wall and a cross member in a novel prefabricated rail top air duct applicable to a subway station;

FIG. 11 is a schematic view of a connection mode of a cross beam member and a side plate column member in a novel prefabricated rail top air duct applicable to a subway station;

FIG. 12 is a schematic view of a connection mode of a side plate column member and a middle plate in a novel prefabricated rail top air duct applicable to a subway station of the present invention;

FIG. 13 is a schematic view of a connection mode of an inner side plate member and a middle plate in a novel prefabricated rail top air duct applicable to a subway station of the present invention;

fig. 14 is a schematic view of a connection mode of an inner side plate member and a bottom plate member in the novel prefabricated rail top air duct applicable to the subway station.

The figures show the components and corresponding references: the side wall structure comprises a station side wall 1, a positioning pit 1a, a station middle plate 2, a middle plate longitudinal beam 2a, a first embedded connecting component 2b, a second embedded connecting component 2c, a middle plate embedded penetrating pipe 3, a side plate column component 10, an outer side plate 11, a side plate column 12, a bracket 13, a screen door mounting sleeve 14, a longitudinal rib 15, an inward inclined section 16, a cross beam component 20, a boss structure 21, a contact net mounting sleeve 22, a bottom plate component 30, an inner side bottom plate component 31, a side rib 311, a boss 312, a positioning groove 313, a tongue-and-groove structure 314, a middle bottom plate component 32, an outer side bottom plate component 33, an inner side plate component 40, a transverse rib 41, a top rib 42, a first caulking joint 51, a second caulking joint 52 and a third caulking joint 53.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1, the novel prefabricated rail top air channel suitable for the subway station is formed by longitudinally butting prefabricated air channel sections, and each prefabricated air channel section is fixedly connected with a station side wall 1 and a station middle plate 2. Each prefabricated air duct section is formed by assembling side plate members 10, cross beam members 20, bottom plate members 30 and inner side plate members 40. The lateral sides of the lateral plate member 10 are provided with vertically extending lateral plate columns 12, and the upper ends of the lateral plate columns 12 are fixedly connected with a middle plate longitudinal beam 2a protruding downwards from the bottom surface of the middle plate 2 in the station through a first embedded connecting member 2 b. The inner end of the beam member 20 forms fixed connection with the station side wall 1 through a clamping structure, and the outer end of the beam member is supported on the side plate column 12 and is fixedly connected with the side plate column 12 through a connecting assembly. The floor member 30 is supported on the top surfaces of the two side cross members 20 and is fixedly connected with the cross members 20 by fixing members; the upper end of the inner side plate member 40 is fixedly connected with the station middle plate 2 through a second embedded connecting member 2c, and the lower end of the inner side plate member is fixedly connected with the inner side of the bottom plate member 30 through a bolt assembly; and a space for the middle plate embedded through pipe 3 to pass through is formed between the inner side plate component 40 and the station side wall 1 between the two side cross beam components 20.

Referring to fig. 1 and 5, the length of the side plate members 10, the bottom plate member 30 and the inner side plate member 40 is matched with the width of the screen door, and the screen door mounting sleeve 14 is embedded in the lower part of each side plate column 12. Contact net mounting sleeves 22 are embedded at intervals in the longitudinal direction at the bottom of the cross member 20.

Referring to fig. 1, the invention is a fully prefabricated assembled rail top air duct structure, which adopts an L-shaped framework and an inserting plate. Reserve medium plate longeron 2a at station medium plate 2 below at first and be used for installation and fixed curb plate component 10, fix crossbeam component 20 inner on station side wall 1 again, the outer end supports on curb plate post 12 and is connected fixedly together with it, has formed the L type skeleton of rail top wind channel structure, possesses firm atress system to can satisfy the installation and the atress requirement of follow-up overhead contact net and shield door. After the L-shaped framework structure of the rail top air duct is installed at certain intervals along the longitudinal direction of the station, the inserting plate type bottom plate component 30 and the inner side plate component 40 are installed between the frameworks, and finally a rectangular air duct type is enclosed to complete the installation of the prefabricated rail top air duct.

Referring to fig. 1, the cross beam member 20 and the station side wall 1, the side plate member 10 and the station middle plate 2 adopt structural measures, the problem of poor durability is solved, the side plate column 12 is connected with the middle plate longitudinal beam 2a, and the problem of water leakage of the station middle plate 2 through a connection point with a rail top air channel is effectively solved. The section adopts L type skeleton, and the atress system is clear and definite, forms the space that supplies middle plate embedded poling 3 to pass through between interior side plate component 40 and station side wall 1 between the crossbeam component 20 of both sides, effectively solves middle plate embedded bushing 3 and the confliction problem of rail top wind channel. And a convenient interface is provided for subsequent specialties, and the workload of the subsequent specialties is reduced. The invention effectively solves the problems of complex construction process, long construction period, poor construction quality and the like of the existing cast-in-place rail top air duct, saves the problems of operation processes of constructing a contact net and a screen door mounting point on site and the like of the cast-in-place rail top air duct, and further saves the construction period. Meanwhile, the problems that part of the prefabricated rail top air channel pieces are large in size, heavy in mass, inconvenient to produce and transport, difficult to install and position, poor in durability and waterproofness of side walls and middle plate connecting pieces and the like are solved, and due to the fact that the prefabricated rail top air channel piece is simple in structure, light in mass and convenient and fast to install, follow-up professional construction is facilitated, and batch production can be conducted according to the whole-line unified requirement.

Referring to fig. 2, 3 and 4, the side panel member 10 is integrally formed by an outer panel 11 and side panel columns 12, the side panel columns 12 are located at both lateral sides of the outer panel 11, and corbels 13 supporting inner ends of the cross member 20 are provided at inner lower portions of the side panel columns 12. The connecting assembly comprises a connecting sleeve embedded at the inner end of the cross beam member 20 and a bolt penetrating through the cross beam member 20 and connected with the connecting sleeve.

Referring to fig. 1 and 12, the upper end of the outer panel 11 has an inward-inclined section 16, and a third caulking 53 is provided between the inward-inclined section 16 and the middle panel longitudinal beam 2 a. The outer panel 11 has longitudinal ribs 15 provided on the lower portion of the inner panel surface, the outer side of the floor member 30 is supported by the longitudinal ribs 15, and second caulking 52 is provided between the outer end surface of the floor member 30 and the inner panel surface of the outer panel 11.

Referring to fig. 10, the clamping structure includes a positioning pit 1a and a boss structure 21 which are matched with each other, the positioning pit 1a is pre-embedded on the station side wall 1 at a position corresponding to the inner end of the beam member 20, the boss structure 21 is arranged at the inner end of the beam member 20, the inner end of the beam member 20 extends into the positioning pit 1a, and mortar is filled between the positioning pit 1a and the boss structure.

Referring to fig. 8 and 9, the upper end of the inner plate member 40 has a top rib 42 contacting the bottom surface of the station middle plate 2, and through holes for the second embedded connecting members 2c to pass through are formed in the top rib 42 at intervals along the length direction.

Referring to fig. 6, the floor member 30 is composed of an inner floor member 31, an outer floor member 33, and at least one middle floor member 32, which are formed in a planar manner in the longitudinal direction of the cross member 20. The middle floor member 32 is determined according to whether or not the vent hole is provided. Pressing strips are arranged at two ends of the top surface of the bottom plate member 30 in the length direction, and screws arranged at intervals penetrate through the pressing strips to fix the bottom plate member 30 on the cross beam member 20.

Referring to fig. 7 and 14, the inner side of the inner bottom plate member 31 has a side rib 311 protruding upward, a boss 312, and a positioning groove 313 is formed between the side rib 311 and the boss 312. The lower end of the inner side plate member 40 is located in the positioning groove 313, the inner side plate member 40 and the inner bottom plate member 31 are fixedly connected by bolts arranged at intervals along the longitudinal direction, and the gap of the positioning groove 313 is filled with the first caulking 51.

The foregoing is illustrative of the principles of the present invention for a novel prefabricated rail top duct for a subway station, and is not intended to limit the invention to the exact construction, materials, and applications shown and described, and accordingly, all modifications and equivalents that may be resorted to are intended to fall within the scope of the invention.