CN222771810U - A fast-construction assembled rail-top air duct segment assembly connection structure - Google Patents
A fast-construction assembled rail-top air duct segment assembly connection structure Download PDFInfo
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- CN222771810U CN222771810U CN202421485238.3U CN202421485238U CN222771810U CN 222771810 U CN222771810 U CN 222771810U CN 202421485238 U CN202421485238 U CN 202421485238U CN 222771810 U CN222771810 U CN 222771810U
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- prefabricated
- side wall
- air duct
- rectangular notch
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Abstract
本实用新型是一种可快速施工的装配式轨顶风道节段拼装连接结构，包括两个预制侧墙、一个预制底板，两个预制侧墙相对面下部对应设有预制牛腿，预制底板安装在预制牛腿顶部，预测侧墙一侧边预留有矩形槽口，预制侧墙另一侧边预埋有与矩形槽口对应的工字钢，预制侧墙外壁预留有与矩形槽口顶部连通的出浆口，预制侧墙内壁预留有与矩形槽口底部连通的注浆口，预制侧墙顶部预留有若干吊装杆件。本实用新型解决了传统装配式轨顶风道节段拼装施工方法存在的工序复杂、施工质量难以检验、施工人员人身安全风险高的问题，并进一步显著提高施工效率，节约工期及人工成本。
The utility model is a fast-constructed assembled rail-top air duct segment assembly connection structure, comprising two prefabricated side walls and a prefabricated bottom plate. Prefabricated brackets are provided at the lower parts of the opposite surfaces of the two prefabricated side walls. The prefabricated bottom plate is installed on the top of the prefabricated brackets. A rectangular notch is reserved on one side of the side wall. An I-beam corresponding to the rectangular notch is embedded on the other side of the prefabricated side wall. A grouting outlet connected to the top of the rectangular notch is reserved on the outer wall of the prefabricated side wall. A grouting outlet connected to the bottom of the rectangular notch is reserved on the inner wall of the prefabricated side wall. A plurality of hoisting rods are reserved on the top of the prefabricated side wall. The utility model solves the problems of complex procedures, difficult to inspect construction quality, and high personal safety risks of construction personnel in the traditional assembled rail-top air duct segment assembly construction method, and further significantly improves construction efficiency, saving construction period and labor costs.
Description
Technical Field
The utility model relates to the technical field of construction of a rail top air channel, in particular to an assembled rail top air channel segment assembling and connecting structure capable of being constructed rapidly.
Background
The rail top air channel is an important auxiliary structure of the urban subway platform, is arranged at the intersection of the middle plate of the subway platform and the rail side wall, and is a main component for top heat dissipation and ventilation in the running process of a subway train. In the prior engineering, a cast-in-place construction mode is generally adopted for the rail top air duct, but the construction is lagged behind a main body structure, and the operation space is limited, so that the problems of complex working procedures, long construction period, high labor cost and the like exist.
With the rapid development of urban rail transit, the requirements on the efficiency and quality of rail transit construction are higher and higher. In recent years, the technology of assembled construction is rapidly developed, and an assembled rail roof air duct is generated. The assembled type rail top air duct section is generally composed of prefabricated side walls and prefabricated bottom plates, steel structure connecting pieces are embedded in the edges of the assembled type rail top air duct section, and adjacent assembled type rail top air duct sections are connected through bolts. Although the assembled rail roof air duct solves the defect of the cast-in-situ rail roof air duct to a certain extent, in terms of the construction technology of the prior assembled rail roof air duct structure, after each section finishes hoisting construction, a constructor needs to enter the inside of a rail roof air duct bin body to finish connection construction among the sections, so that the construction quality of the connection among the sections is difficult to check, and the personal safety risk of the constructor is obviously increased due to the narrow space inside the rail roof air duct bin body.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides an assembled rail top air duct segment assembling and connecting structure capable of being constructed rapidly.
The assembled rail top air duct section assembling and connecting structure comprises two prefabricated side walls and a prefabricated bottom plate, wherein the lower parts of the opposite faces of the two prefabricated side walls are correspondingly provided with prefabricated corbels, the prefabricated bottom plate is arranged at the tops of the prefabricated corbels, a rectangular notch is reserved on one side of the predicted side wall, the rectangular notch penetrates through the prefabricated side wall along the height direction top of the prefabricated side wall, the bottom of the rectangular notch is not penetrated through the prefabricated side wall, I-shaped steel corresponding to the rectangular notch is pre-embedded on the other side of the prefabricated side wall, the top of the I-shaped steel is flush with the top of the prefabricated side wall along the height direction top of the prefabricated side wall, the bottom of the I-shaped steel is higher than the bottom of the rectangular notch, a grouting opening communicated with the top of the rectangular notch is reserved on the outer wall of the prefabricated side wall, a plurality of hoisting rod pieces are reserved on the top of the prefabricated side wall, the hoisting rod pieces are fixed with a middle plate, when the two prefabricated side walls are connected with the prefabricated bottom plate to form an assembled rail top air duct section, and when the two adjacent assembled rail top I-shaped steel sections are spliced into the rectangular notch, and are fixed in the rectangular notch through grouting.
Particularly, a plurality of first bolt holes are reserved at the top of the prefabricated bracket, a plurality of second bolt holes corresponding to the first bolt holes are reserved on the prefabricated bottom plate, and the prefabricated bottom plate and the prefabricated bracket are fixed through bolts penetrating through the second bolt holes and the first bolt holes and screwing nuts.
In particular, a construction joint is reserved between the prefabricated bottom plate and the prefabricated side wall, and cement mortar is filled in the construction joint.
In particular, the rectangular notch on the same prefabricated side wall faces to the rear of the axial construction direction of the assembled rail top air duct, and the I-steel faces to the front of the construction direction.
The method has the beneficial effects that the connection between adjacent assembled rail top air duct sections is completed by adopting the pre-embedded I-steel, reserved rectangular notch and grouting filling modes, wherein the pre-embedded I-steel and reserved rectangular notch structures can be prefabricated in a factory, only two working procedures of hoisting assembled rail top air duct sections and pressure grouting are needed on site, the construction is extremely convenient, the construction quality is easy to ensure, the labor amount is low, the problems of complex working procedures, difficult inspection of the construction quality and high personal safety risks of constructors in the traditional assembled rail top air duct section assembling construction method are solved, the construction efficiency is further remarkably improved, and the construction period and the labor cost are saved.
Drawings
FIG. 1 is a schematic view of an assembled rail head tunnel segment of the present utility model;
FIG. 2 is a schematic diagram of an assembly process of two assembled rail top duct segments of the present utility model;
FIG. 3 is a schematic view of an assembled two assembled rail top duct segments of the present utility model;
FIG. 4 is a cross-sectional view of the present utility model where two assembled rail roof air duct segments are assembled;
In the figure, 1-prefabricated side walls, 11-prefabricated bracket, 111-first bolt holes, 12-rectangular notch, 13-I-steel, 14-grouting port, 15-grout outlet, 16-hoisting rod pieces, 2-prefabricated bottom plates, 21-second bolt holes and 3-construction joints;
The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
As shown in fig. 1-4, the assembled rail top air duct section assembling and connecting structure capable of being constructed rapidly comprises two prefabricated side walls 1 and a prefabricated bottom plate 2, wherein the lower parts of the opposite surfaces of the two prefabricated side walls 1 are correspondingly provided with prefabricated bracket legs 11, the prefabricated bottom plate 2 is arranged at the tops of the prefabricated bracket legs 11, a plurality of first bolt holes 111 are reserved at the tops of the prefabricated bracket legs 11, a plurality of second bolt holes 21 corresponding to the first bolt holes 111 are reserved on the prefabricated bottom plate 2, the prefabricated bottom plate 2 and the prefabricated bracket 11 penetrate through the second bolt holes 21 and the first bolt holes 111 through bolts and are fixed by screwing nuts, the prefabricated bottom plate 2 is a factory prefabricated concrete plate, and the second bolt holes 21 are reserved at the edges close to the prefabricated side walls 1 and are used for being connected with the prefabricated side walls 1.
A rectangular notch 12 is reserved on one side of the predicted side wall 1, the top of the rectangular notch 12 penetrates through the prefabricated side wall 1 in the height direction of the prefabricated side wall 1, the bottom of the rectangular notch does not penetrate through the prefabricated side wall 1 so as to be convenient to assemble and position, I-steel 13 corresponding to the rectangular notch 12 is pre-embedded on the other side of the prefabricated side wall 1, the top of the I-steel 13 is flush with the top of the prefabricated side wall 1 in the height direction of the prefabricated side wall 1, the bottom of the I-steel 13 is higher than the bottom of the rectangular notch 12 so as to facilitate grouting of the notch, the I-steel 13 can be of a smaller section size so as to improve construction convenience and reduce material cost, and the rectangular notch 12 on the same prefabricated side wall 1 faces to the rear of the axial construction direction of an assembled rail roof air duct, and the I-steel 13 faces to the front of the construction direction.
The outer wall of the prefabricated side wall 1 is reserved with a slurry outlet 15 communicated with the top of the rectangular notch 12, the inner wall of the prefabricated side wall 1 is reserved with a slurry injection port 14 communicated with the bottom of the rectangular notch 12, and a pressure grouting method can be adopted for grouting so as to perform cement slurry injection.
The top of the prefabricated side wall 1 is reserved with a plurality of hoisting rod pieces 16, the hoisting rod pieces 16 are fixed with the middle plate, and the hoisting rod pieces 16 can be used for hoisting and lifting the wall body of the prefabricated side wall 1.
The two prefabricated side walls 1 are connected with one prefabricated bottom plate 2 to form an assembled rail top air channel section, and when the two adjacent assembled rail top air channel sections are spliced, I-steel 13 at the butt joint part slides into the rectangular notch 12 and is fixed by grouting in the rectangular notch 12.
A construction joint 3 is reserved between the prefabricated bottom plate 2 and the prefabricated side walls 1, cement mortar is filled in the construction joint 3, and specifically, in a single assembled rail top air duct section, the construction joint 3 is reserved at the joint of each prefabricated side wall 1 and the prefabricated bottom plate 2 so as to facilitate filling by grouting, and the gap can avoid inconvenient installation caused by manufacturing errors of the prefabricated side walls 1 and the prefabricated bottom plates 2.
After the last assembled rail top air duct section is hoisted in place and is installed and fixed, the adjacent next assembled rail top air duct section is transported to the projection position of the installation position of the adjacent assembled rail top air duct section on the ground plane of the track section, then the assembled rail top air duct section is vertically lifted to the installation position of the assembled rail top air duct section, in the lifting process, the I-steel 13 pre-buried in the upper assembled rail top air duct section slides into the rectangular notch 12 reserved in the adjacent next assembled rail top air duct section, after the notch is grouted, the upper assembled rail top air duct section and the adjacent next assembled rail top air duct section form a whole, and the assembled rail top air duct section is assembled in sequence according to the method.
Furthermore, the slot grouting process can be performed intensively after all the assembled rail top air channel sections are hoisted.
The utility model comprises the following steps when in operation:
S1, splicing two mirror-symmetrical prefabricated side walls 1 and a prefabricated bottom plate 2 into 1 assembled rail top air duct section shown in figure 1 on site, connecting the prefabricated bottom plate 2 and the prefabricated bracket 11 through bolts, filling cement mortar at a construction joint 3, and forming an adjacent assembled rail top air duct section A;
S2, after the cement mortar at the construction joint 3 meets the requirement of lifting strength, lifting the assembled rail top air channel section A to a subway platform middle plate through a lifting rod piece 16 for installation and fixation;
s3, repeating the step S1 to form an adjacent next assembled rail top air channel section B;
S4, conveying the assembled rail top air duct section B to a projection position of the installation position of the assembled rail top air duct section B on the ground plane of the track section, and then vertically lifting the assembled rail top air duct section B to the installation position of the assembled rail top air duct section B, wherein in the lifting process, I-steel 13 of the assembled rail top air duct section A vertically slides into a rectangular notch 12 of the assembled rail top air duct section B;
S5, grouting cement mortar from a grouting hole 14 below the inner side of the prefabricated side wall 1 of the assembled rail top air channel segment A by adopting a pressure grouting method until a grouting hole 15 above the outer side of the prefabricated side wall 1 of the assembled rail top air channel segment B is used for grouting;
s6, repeating the steps S1 to S5 until all the assembled rail top air duct segments are assembled in sequence along the axial construction direction of the assembled rail top air duct.
The S5 can be uniformly carried out after all the assembled rail top air duct sections are assembled in sequence along the axial construction direction of the assembled rail top air duct, so that the purposes of further simplifying the construction flow and saving the construction period are achieved.
When assembling between the assembled rail top air duct sections, the rear installation section is vertically lifted, the front installation stage and the rear installation stage are connected through the I-steel 13 and the rectangular notch 12 to form a tongue-and-groove, and the gap is filled by adopting a pressure grouting mode, so that the problems of complex procedures, difficult inspection of construction quality and high personal safety risk of constructors in the traditional assembled rail top air duct section assembling construction method are completely solved, the construction efficiency is further obviously improved, and the construction period and the labor cost are saved.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interactive relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (4)
1. A rapid construction assembled type rail top air channel segment assembling connection structure is characterized by comprising two prefabricated side walls (1) and a prefabricated bottom plate (2), wherein the lower parts of opposite surfaces of the two prefabricated side walls (1) are correspondingly provided with prefabricated bracket legs (11), the prefabricated bottom plate (2) is arranged at the top of the prefabricated bracket legs (11), a rectangular notch (12) is reserved on one side of the prefabricated side wall (1), the rectangular notch (12) penetrates through the prefabricated side wall (1) along the top of the prefabricated side wall (1) in the height direction, I-shaped steel (13) corresponding to the rectangular notch (12) is embedded at the other side of the prefabricated side wall (1), the I-shaped steel (13) is flush with the top of the prefabricated side wall (1) along the height direction of the prefabricated side wall, the bottom is higher than the bottom of the rectangular notch (12), a grout outlet (15) communicated with the top of the rectangular notch (12) is reserved on the outer wall of the prefabricated side wall (1), a grout inlet (14) communicated with the bottom of the rectangular notch (12) is reserved on the inner wall of the prefabricated side wall (1), the top of the prefabricated side wall (1) is hoisted, I-shaped steel (13) is embedded at the other side of the prefabricated side wall (1), I-shaped steel (13) is corresponding to the rectangular steel (12), two adjacent rail top side wall segments (12) are assembled with the two prefabricated side wall segments (2) in the same type, the two adjacent rail top side channel segments are assembled type, the two prefabricated side wall segments are assembled type and the two adjacent to the rail top side channel segments are assembled type side channel segment assembly type and the rail top air channel segment assembly type is assembled, the I-steel (13) at the butt joint part slides into the rectangular notch (12) and is fixed by grouting in the rectangular notch (12).
2. The rapid construction assembled rail top air duct segment assembling connection structure according to claim 1, wherein a plurality of first bolt holes (111) are reserved at the top of the prefabricated bracket (11), a plurality of second bolt holes (21) corresponding to the first bolt holes (111) are reserved on the prefabricated base plate (2), and the prefabricated base plate (2) and the prefabricated bracket (11) are fixed through bolts penetrating through the second bolt holes (21), the first bolt holes (111) and screwing nuts.
3. The rapid construction assembled rail top air duct segment assembling connection structure according to claim 1 is characterized in that a construction joint (3) is reserved between the prefabricated bottom plate (2) and the prefabricated side wall (1), and cement mortar is filled in the construction joint (3).
4. The rapid construction assembled rail top air duct segment assembling and connecting structure according to claim 1 is characterized in that rectangular notches (12) on the same prefabricated side wall (1) face to the rear of the axial construction direction of the assembled rail top air duct, and I-steel (13) face to the front of the construction direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421485238.3U CN222771810U (en) | 2024-06-27 | 2024-06-27 | A fast-construction assembled rail-top air duct segment assembly connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421485238.3U CN222771810U (en) | 2024-06-27 | 2024-06-27 | A fast-construction assembled rail-top air duct segment assembly connection structure |
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| Publication Number | Publication Date |
|---|---|
| CN222771810U true CN222771810U (en) | 2025-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421485238.3U Active CN222771810U (en) | 2024-06-27 | 2024-06-27 | A fast-construction assembled rail-top air duct segment assembly connection structure |
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| CN (1) | CN222771810U (en) |
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- 2024-06-27 CN CN202421485238.3U patent/CN222771810U/en active Active
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