Assembly type station middle plate with sinking structure of longitudinal and transverse beam system
By using the Yonglin combined longitudinal and horizontal beam system and sunken suspended wall structure in the prefabricated subway station, the existing technology problems of inconvenient maintenance of the mid-plate structure and difficulty in miniaturization and lightweighting of prefabricated mid-plate structures have been solved, achieving construction efficiency and Cost optimization improves passenger experience.
Patent Information
- Application Number
- CN202421217089.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing prefabricated subway station mid-plate structure is difficult to optimize in areas with more buried pipes, resulting in inconvenient structural maintenance and poor passenger experience. The prefabricated mid-plate components are difficult to miniaturize and lightweight, and the installation nodes are complex, which increases the construction difficulty and cost.
The prefabricated station mid-panel with sunken structure is adopted using the Yong-Lin combined longitudinal and transverse beam system. Through the Yong-Lin combined frame system and sunken suspended wall structure, the size and installation method of the prefabricated mid-panel are optimized to achieve miniaturization and lightweight of the mid-panel. and easy installation.
It eliminates traditional temporary support structures, saves engineering materials and construction period, optimizes the structure of prefabricated mid-boards, reduces the difficulty of production, transportation and assembly, improves construction efficiency and cost-effectiveness, and improves passenger experience.
Smart Images
Figure CN222375500U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of underground structure engineering, and in particular relates to an assembled station middle plate with a sinking structure of a longitudinal and transverse beam system. Background Art
[0002] In recent years, under the strategic needs and policy calls of the national and local governments at all levels, the development of prefabricated buildings has become the direction of future construction, and the construction technology of prefabricated subway stations has also developed rapidly. The existing prefabricated subway station mid-plate structures all adopt the scheme of prefabricated assembly of parallel station cross-sections. As an important component of the prefabricated station structure system, the prefabricated mid-plate components participate in the station force. The thick plate system of the traditional cast-in-place subway station is used, and the requirements for the body strength of the prefabricated mid-plate components and the connection of each node are relatively strict. As the main load-bearing component, the prefabricated mid-plate components cannot be optimized in structural dimensions, making it difficult to miniaturize and lighten the prefabricated mid-plate components, and simplify and facilitate the installation nodes, which causes great inconvenience to the production, transportation, and assembly of prefabricated mid-plate components, increases the cost and construction difficulty of prefabricated stations, and is not conducive to the promotion and application of prefabricated stations.
[0003] In traditional cast-in-place subway station middle plates, in areas with a large number of buried pipes, such as toilets, the middle plates of the traditional cast-in-place subway stations use a lowering plate method to collect several pipes in the sinking area of the middle plate to one place and pass through the middle plate, thereby avoiding several pipes passing through the middle plate or increasing the structural surface of the middle plate, which brings inconvenience to later use and structural maintenance. However, since the existing prefabricated subway station middle plate structures all adopt the whole ring prefabrication and assembly scheme, it is necessary to set up a sandwich structure in the area with a large number of buried pipes, and collect several pipes in the sandwich plate to one place and pass through the middle plate. At the same time, since the pipeline has a certain slope requirement, the area is higher than the surrounding middle plate structural surface, and multiple steps or longer ramps need to be set up for transition, which causes inconvenience to passengers, especially special groups of "old, young, sick, disabled and pregnant" and staff. It does not conform to the development concept of "people-oriented", and it does not conform to the concept of high-quality development of prefabricated construction technology.
[0004] Therefore, it is necessary to design an assembled subway station middle plate with a sunken structure with lightweight prefabricated components and convenient node installation to solve the above problems. Summary of the invention
[0005] The utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide an assembled station middle plate with a sinking structure of a longitudinal and transverse beam system.
[0006] The technical solution of the utility model is: an assembled station middle plate with a sunken structure of a longitudinal and transverse beam system, including a permanent and temporary combined frame system, a sunken suspended wall structure is arranged at the lower end of the permanent and temporary combined frame system, a standard width prefabricated middle plate is laid in the permanent and temporary combined frame system, the standard width prefabricated middle plate is a prefabricated assembly plate, and a sunken width prefabricated middle plate is laid in the suspended wall structure, and the sunken width prefabricated middle plate is a prefabricated assembly plate.
[0007] Furthermore, the sunken width prefabricated middle plate is fixed to the hanging wall structure, and the sunken width prefabricated middle plate is lower than the standard width prefabricated middle plate.
[0008] Furthermore, the permanent-temporary combined frame system includes parallel prefabricated underground continuous walls, the inner side of the prefabricated underground continuous walls are cast with cast-in-place middle waist beams, cast-in-place middle cross beams are cast between the cast-in-place middle waist beams, and a cast-in-place middle longitudinal beam is arranged in the middle of the cast-in-place middle cross beams.
[0009] Furthermore, the suspended wall structure includes a suspended wall below the middle cross beam, a middle suspended wall below the middle cross beam, and a suspended wall below the middle longitudinal beam. The suspended wall below the middle cross beam and the middle suspended wall below the middle cross beam are arranged below the cast-in-place middle cross beam, and the suspended wall below the middle longitudinal beam is arranged below the cast-in-place middle longitudinal beam.
[0010] Furthermore, the lower side hanging wall of the middle cross beam, the middle hanging wall under the middle cross beam, the lower hanging wall of the middle longitudinal beam and the hole side beams enclose multiple sinking areas.
[0011] Furthermore, the cast-in-place middle longitudinal beam is provided with a middle plate column node at the position of the structural column, and the upper and lower ends of the middle plate column node reserve structural column connection conditions in the main body backbuilding stage.
[0012] Furthermore, the hole side beams are arranged between the cast-in-place middle cross beams, and there are multiple cast-in-place middle cross beams that are arranged in parallel at equal intervals.
[0013] Furthermore, holes are arranged between the cast-in-place middle cross beam and the middle suspended wall under the middle cross beam.
[0014] Furthermore, both sides of the standard width prefabricated middle plate are assembled and fixed to the cast-in-place middle cross beam, and adjacent standard width prefabricated middle plates are spliced and fixed.
[0015] Furthermore, the two sides of the sinking prefabricated middle plate are assembled and fixed to the hole side beams and the hanging wall under the middle longitudinal beam, and the adjacent sinking prefabricated middle plates are butt-jointed and fixed.
[0016] The beneficial effects of the utility model are as follows:
[0017] The utility model adopts the design concept of combining permanent and temporary support, combines the temporary support with the longitudinal and transverse beams of the station, eliminates the temporary support structure of the traditional cast-in-place and existing prefabricated subway stations, and can save a lot of engineering materials and construction time.
[0018] The utility model adopts a permanent and temporary combination of longitudinal and transverse beam structures to optimize the traditional thick plate system of subway stations into a dense rib beam system; and then optimizes the prefabricated middle plate from a main load-bearing component to a force-transmitting component, which can realize the miniaturization and lightness of the prefabricated middle plate components, and the simplification and convenience of the installation nodes. The utility model not only reduces the difficulty of prefabricated component production, transportation and assembly, optimizes on-site procedures and construction period, but also optimizes the size of prefabricated middle plate components, further saving construction costs. It is more conducive to the application and promotion of prefabricated stations.
[0019] The utility model prefabricates the middle plates of the standard section and the sinking section, so that the quality of the middle plate structure is controllable and the installation is convenient, the on-site bracket is eliminated, the construction period is shortened, and the construction accuracy is improved.
[0020] The utility model sets a prefabricated middle plate sunken structure in the Yonglin combined prefabricated subway station, which avoids the problem of multiple pipelines passing under the prefabricated middle plate or setting a mezzanine above the prefabricated middle plate structure surface in the existing prefabricated subway station, solves the problems of poor user experience and inconvenient structural maintenance in the existing prefabricated subway station, and is in line with the concept of high-quality development of prefabricated construction technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a plan view of the permanent and temporary combined longitudinal and transverse beam system of the utility model;
[0022] Figure 2 It is a plan view of the utility model after the prefabricated middle plate including the sinking structure is installed;
[0023] Figure 3 This utility model Figure 1 AA longitudinal section diagram in;
[0024] Figure 4 This utility model Figure 1 Schematic diagram of BB cross section;
[0025] Figure 5 This utility model Figure 1 Schematic diagram of CC cross section in;
[0026] Figure 6 This utility model Figure 2 DD longitudinal section diagram in;
[0027] Figure 7 This utility model Figure 2 EE longitudinal section diagram in ;
[0028] Figure 8 This utility model Figure 2 Schematic diagram of FF cross section;
[0029] Fig. 9 This utility model Figure 2 A partial enlarged schematic diagram of the FF cross section;
[0030] Fig.10 This utility model Figure 2 Schematic diagram of the GG cross section;
[0031] Fig.11 It is a horizontal, longitudinal and transverse schematic diagram of a standard width prefabricated middle plate in the utility model;
[0032] Fig.12 It is a partial enlarged schematic diagram of the joint of the prefabricated middle plate of the middle and lower sinking width of the utility model;
[0033] Fig.13 This utility model Figure 7 A magnified schematic diagram of the middle part;
[0034] in:
[0035] 1 Prefabricated underground continuous wall 2 Cast-in-place middle beam
[0036] 3 Cast-in-place middle cross beam 4 Cast-in-place middle longitudinal beam
[0037] 5 Middle plate column node 6 hole side beam
[0038] 7 Side wall under the middle beam 8 Middle wall under the middle beam
[0039] 9 Middle longitudinal beam lower hanging wall 10 hole
[0040] 11 Standard width prefabricated middle plate 12 Sinking width prefabricated middle plate
[0041] 13 Concave and convex tenon 14 Welding embedded angle steel
[0042] 15 Shear groove 16 Steel mesh
[0043] 17UHPC concrete 18-1 cast-in-place middle beam bolt hole
[0044] 18-2 Standard width prefabricated middle plate bolt hole 19 Internal thread sleeve for lifting
[0045] 20 Internal threaded sleeve for installation 21 Long rod bolt
[0046] 22 Slightly expansive cement slurry. DETAILED DESCRIPTION
[0047] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:
[0048] like Figures 1 to 13As shown, an assembled station center plate with a sunken structure of a longitudinal and transverse beam system includes a permanent and temporary combined frame system, a sunken suspended wall structure is arranged at the lower end of the permanent and temporary combined frame system, a standard width prefabricated center plate 11 is laid in the permanent and temporary combined frame system, and the standard width prefabricated center plate 11 is a prefabricated assembly plate, and a sunken width prefabricated center plate 12 is laid in the suspended wall structure, and the sunken width prefabricated center plate 12 is a prefabricated assembly plate.
[0049] The sunken width prefabricated middle plate 12 is fixed to the hanging wall structure, and the sunken width prefabricated middle plate 12 is lower than the standard width prefabricated middle plate 11 .
[0050] The permanent-temporary combined frame system includes parallel prefabricated underground continuous walls 1, the inner side of the prefabricated underground continuous wall 1 is cast with a cast-in-place middle waist beam 2, between the cast-in-place middle waist beams 2 are cast-in-place middle cross beams 3, and the middle part of the cast-in-place middle cross beam 3 is provided with a cast-in-place middle longitudinal beam 4.
[0051] The suspended wall structure includes a suspended wall 7 below the middle cross beam, a middle suspended wall 8 below the middle cross beam, and a suspended wall 9 below the middle longitudinal beam. The suspended wall 7 below the middle cross beam and the middle suspended wall 8 below the middle cross beam are arranged below the cast-in-place middle cross beam 3, and the suspended wall 9 below the middle longitudinal beam is arranged below the cast-in-place middle longitudinal beam 4.
[0052] The side hanging wall 7 under the middle cross beam, the middle hanging wall 8 under the middle cross beam, the hanging wall 9 under the middle longitudinal beam and the hole side beam 6 are combined to form multiple sinking areas.
[0053] The cast-in-place middle longitudinal beam 4 is provided with a middle plate column node 5 at the position of the structural column, and the upper and lower ends of the middle plate column node 5 reserve structural column connection conditions in the main body backbuilding stage.
[0054] The hole side beams 6 are arranged between the cast-in-place middle cross beams 3 , and there are multiple cast-in-place middle cross beams 3 , which are arranged in parallel with equal intervals.
[0055] A hole 10 is provided between the cast-in-place middle cross beam 3 and the middle hanging wall 8 below the middle cross beam.
[0056] Both sides of the standard width prefabricated middle plate 11 are assembled and fixed to the cast-in-place middle cross beam 3 , and adjacent standard width prefabricated middle plates 11 are spliced and fixed.
[0057] The two sides of the sinking width prefabricated middle plate 12 are assembled and fixed with the hole side beams 6 and the hanging wall 9 under the middle longitudinal beam, and the adjacent sinking width prefabricated middle plates 12 are spliced and fixed.
[0058] Specifically, the cast-in-place middle waist beam 2, cast-in-place middle cross beam 3, cast-in-place middle longitudinal beam 4 and prefabricated underground continuous wall 1 form a permanent and temporary combined frame system. In the permanent and temporary combined frame system, adjacent cast-in-place middle cross beams 3, cast-in-place middle longitudinal beams 4 and cast-in-place middle waist beam 2 form a rectangular frame unit, and the standard width prefabricated middle plate 11 is flatly laid and fixed in the rectangular frame unit.
[0059] Specifically, a hole side beam 6 is arranged between multiple cast-in-place middle cross beams 3. The hole side beam 6, the lower side hanging wall 7 of the middle cross beam, the lower middle hanging wall 8 of the middle cross beam, and the lower hanging wall 9 of the middle longitudinal beam are enclosed to form a sunken rectangular frame unit. The sunken prefabricated middle plate 12 is arranged in the sunken rectangular frame unit.
[0060] Specifically, the sinking prefabricated middle plate 12 is fixedly connected to the hole side beam 6 and the lower hanging wall 9 of the middle longitudinal beam.
[0061] Specifically, the cast-in-place middle cross beam 3 is fixedly connected to the prefabricated underground continuous wall 1 through the cast-in-place middle waist beam 2, and forms a permanent and temporary combined frame support system with the cast-in-place middle longitudinal beam 4. The standard width prefabricated middle plate 11 is installed between the cast-in-place middle cross beams 3 to transfer the load, and the traditional thick plate system of the station is optimized into a dense-rib beam system of a permanent and temporary combined longitudinal and transverse beam structure, thereby achieving the miniaturization and lightweight of the standard width prefabricated middle plate 11 and the simplification and convenience of the installation nodes.
[0062] Specifically, Fig.13 As shown, the cast-in-place center cross beam 3 is provided with a tongue and groove at the overlapping position of the standard width precast center plate 11, and the cast-in-place center cross beam bolt hole 18-1 is provided in the tongue and groove and an internal threaded sleeve 20 for installation is embedded in the tongue and groove. The standard width precast center plate 11 is aligned with the standard width precast center plate bolt hole 18-2 at the corresponding overlapping position, and the standard width precast center plate 11 and the cast-in-place center cross beam 3 are fixed by long rod bolts 21.
[0063] Specifically, an internal threaded sleeve 19 for lifting is embedded in the standard width prefabricated middle plate 11 .
[0064] Specifically, during the backbuilding stage, the standard width prefabricated middle plate 11 is installed and fixed on the above-mentioned tongue and groove of the cast-in-place middle cross beam 3 by means of long rod bolts 21. After the installation of the standard width prefabricated middle plate 11 is completed, the bolt holes 18-1 of the cast-in-place middle cross beam, the bolt holes 18-2 of the standard width prefabricated middle plate, and the internal threaded sleeve 19 for lifting are poured with micro-expansive cement slurry 22 for sealing and reinforcement.
[0065] Specifically, Fig.11 As shown, the standard width prefabricated middle plate 11 is provided with concave and convex tenons 13 on both sides of the cross section, and the adjacent standard width prefabricated middle plates 11 are spliced together through the concave and convex tenons 13.
[0066] Specifically, the hole side beam 6, the side hanging wall 7 under the middle cross beam, the middle hanging wall 8 under the middle cross beam, and the lower hanging wall 9 of the middle longitudinal beam are cast synchronously with the cast-in-place middle cross beam 3, the cast-in-place middle longitudinal beam 4, and the column node 5 at the middle plate, and a hole 10 is set in the middle of the middle hanging wall 8 under the middle cross beam.
[0067] Specifically, the lower side hanging wall 7 of the middle cross beam, the middle hanging wall 8 of the middle cross beam, and the prefabricated middle plate 12 of the sinking width are matched with each other to set grooves and convex tenons 13 at the side walls, and the adjacent prefabricated middle plates 12 of the sinking width in the sinking area are spliced with each other through the grooves and convex tenons 13, and are spliced with the lower side hanging wall 7 of the cross beam and the middle hanging wall 8 of the middle cross beam.
[0068] Specifically, welded embedded angle steels 14 are provided on the hole side beams 6, the hanging wall 9 under the middle longitudinal beam, and the prefabricated middle plate 12 of the sinking width, and the prefabricated middle plate 12 of the sinking width is fixedly connected to the hole side beams 6 and the hanging wall 9 under the middle longitudinal beam by welding.
[0069] More specifically, Fig. 9 As shown, the cross-section of the sinking prefabricated middle plate 12 is L-shaped, the L-shaped upper end of the sinking prefabricated middle plate 12 is fixed to the lower end of the hole edge beam 6, and the transverse side wall of the sinking prefabricated middle plate 12 is fixed to the hanging wall 9 under the middle longitudinal beam.
[0070] More specifically, a relative welded embedded angle steel 14 is arranged at the lower part of the hole side beam 6, and the width of the welded embedded angle steel 14 is consistent with the L-shaped upper end of the sunken width prefabricated middle plate 12. The two are fixed by welding to achieve the fixation of the hole side beam 6 and the sunken width prefabricated middle plate 12.
[0071] More specifically, a tongue and groove is formed on the side of the hole edge beam 6 away from the hanging wall 9 under the middle longitudinal beam, and the tongue and groove supports and fixes the standard width prefabricated middle plate 11.
[0072] More specifically, a shear groove 15 is formed on the side wall of the hanging wall 9 under the middle longitudinal beam facing the hole edge beam 6, and the corresponding side wall of the sunken width prefabricated middle plate 12 corresponds to the shape of the shear groove 15, thereby achieving buckling and fixing.
[0073] More specifically, on the basis of buckling fixation, the upper and lower ends of the middle longitudinal beam lower hanging wall 9 are provided with welded embedded angle steels 14, which fix the sinking prefabricated middle plate 12 and the middle longitudinal beam lower hanging wall 9. The welded embedded angle steels 14 here are dislocated up and down.
[0074] More specifically, the welded embedded angle steel 14 at the joints between the sunken prefabricated middle plate 12 and the hole side beam 6 and the lower hanging wall 9 of the middle longitudinal beam is welded by groove welding.
[0075] More specifically, a steel mesh 16 is provided outside the welded embedded angle steel 14 and is sealed and reinforced by pouring UHPC concrete 17 .
[0076] More specifically, the concave-convex tenon 13 on the outer side of the sunken width prefabricated middle plate 12 is also L-shaped.
[0077] Specifically, the cast-in-place middle waist beam 2, the cast-in-place middle cross beam 3 and the cast-in-place middle longitudinal beam 4 are permanent structures, which are all constructed when the station foundation pit is excavated to the middle plate position. The cast-in-place middle cross beam 3 is fixedly connected to the prefabricated underground continuous wall 1 through the cast-in-place middle waist beam 2 to form a frame support system; during the backbuilding stage, the prefabricated middle plate components are assembled between the cast-in-place middle cross beams 3 to form a complete subway station middle plate structure.
[0078] Specifically, the cast-in-place middle longitudinal beam 4 and the cast-in-place middle cross beam 3 form a permanent and temporary combined frame support system, and the load is transferred by assembling standard width prefabricated middle plates 11 between the cast-in-place middle cross beams 3, thereby optimizing the traditional thick plate system of the station into a dense-ribbed beam structure system, and then optimizing the prefabricated middle plate from a main load-bearing component to a load-transmitting component, thereby realizing the miniaturization and lightweight of the prefabricated middle plate component; at the same time, it also serves as support during the foundation pit excavation stage, eliminating the temporary support structure; it not only optimizes the construction process and middle plate size of traditional cast-in-place and existing prefabricated subway stations, saving a large amount of engineering materials and construction period, but also reduces engineering costs.
[0079] Specifically, the standard width prefabricated middle plate 11 can be installed and fixed on the cast-in-place middle cross beam 3 by long rod bolts 21 during the backbuilding stage, and then the bolt holes and the internal threaded sleeves for lifting are poured with cement slurry for sealing and reinforcement. The on-site operation is simple and convenient, which can improve the construction efficiency of the prefabricated middle plate and the durability of the node connection.
[0080] Specifically, the hole side beam 6, the side hanging wall 7 under the middle cross beam, the middle hanging wall 8 under the middle cross beam, and the hanging wall 9 under the middle longitudinal beam are cast synchronously with the cast-in-place middle cross beam 3, the cast-in-place middle longitudinal beam 4, and the column node 5 at the middle plate. The structure has good integrity, simple on-site construction, and strong operability; at the same time, it avoids the need to add multiple sets of molds when using prefabricated structures for irregular components, thereby saving costs.
[0081] Specifically, weldable embedded angle steels are arranged on the hole side beam 6, the hanging wall 9 under the middle longitudinal beam, and the prefabricated middle plate 12 of the sinking width, and the prefabricated middle plate 12 of the sinking width is fixedly connected with the hole side beam 6 and the hanging wall 9 under the middle longitudinal beam by welding. The embedded angle steel is welded and connected, which has high strength, good integrity and simple operation.
[0082] More specifically, a steel mesh 16 is provided outside the welded embedded angle steel 14 at the connection between the sinking prefabricated middle plate 12 and the hole side beam 6 and the lower hanging wall 9 of the middle longitudinal beam, and is sealed and reinforced by pouring UHPC concrete 17. The sealing and reinforcement of the connection between the sinking prefabricated middle plate 12 and the hole side beam 6 and the lower hanging wall 9 of the middle longitudinal beam further improves the structural strength; at the same time, it avoids direct contact between the weldable angle steel and the outside, thereby increasing the corrosion resistance of the structure and further ensuring the structural strength within the service life.
[0083] Specifically, the side hanging wall 7 under the middle cross beam, the middle hanging wall 8 under the middle cross beam, the standard width prefabricated middle plate 11, and the sinking width prefabricated middle plate 12 are provided with concave and convex tenons 13, the standard width prefabricated middle plates are spliced together through the concave and convex tenons 13, and the sinking width prefabricated middle plates 12 are spliced together through the concave and convex tenons 13, and are spliced with the side hanging wall 7 under the cross beam and the middle hanging wall 8 under the middle cross beam. The shear resistance between the structures of the sinking width prefabricated middle plate 12 and the integrity of the structure are increased.
[0084] Specifically, a hole 10 is arranged in the middle of the middle hanging wall 8 under the middle cross beam, so as to facilitate the pipes under multiple appliances in the toilets in different prefabricated middle plate sinking areas to be gathered together and pass through the middle plate.
[0085] The construction process of this embodiment is as follows:
[0086] First, during the foundation pit excavation construction, when the excavation reaches the middle plate structure surface, the second permanent and temporary combined support structure is constructed, in which the cast-in-place middle cross beam 3 is fixedly connected to the prefabricated underground continuous wall 1 through the cast-in-place middle waist beam 2, and forms a permanent and temporary combined frame support system with the cast-in-place middle longitudinal beam 4;
[0087] Then, the hole side beams 6 around the sinking area of the middle plate, the side hanging wall 7 under the middle cross beam, the middle hanging wall 8 under the middle cross beam, and the hanging wall 9 under the middle longitudinal beam need to be constructed synchronously with the cast-in-place middle cross beam 3, the cast-in-place middle longitudinal beam 4, and the column node 5 at the middle plate;
[0088] After that, when the second permanent and temporary support structure reaches the designed strength, continue to dig down to the bottom of the pit;
[0089] Then, in the main structure backbuilding construction stage, the bottom plate structure and the negative second floor column structure are constructed in sequence, and the negative second floor column structure and the column node 5 at the middle plate are fixedly connected by reserving connection conditions;
[0090] Then, the prefabricated middle plate 12 of the sinking width is assembled and installed to ensure that the concave and convex tenon structures of the prefabricated middle plate 12 of the sinking width and the lower side hanging wall 7 of the cross beam and the lower middle hanging wall 8 of the middle cross beam are accurately assembled, and the prefabricated middle plate 12 of the sinking width is fixedly connected with the hole side beam 6 and the lower hanging wall 9 of the middle longitudinal beam by welding;
[0091] Then, a steel mesh 16 is arranged outside the welded embedded angle steel 14 at the above-mentioned connection;
[0092] After that, the UHPC concrete 17 is poured for sealing and reinforcement. A plurality of prefabricated middle plates 12 with sunken widths are assembled together and installed as a whole with the hole side beams 6 and the hanging wall 9 under the middle longitudinal beam to form an integral prefabricated middle plate sunken structure;
[0093] Finally, the standard width prefabricated middle plate 11 is installed and fixed on the tongue and groove of the cast-in-place middle cross beam 3 by means of long rod bolts 21, and then cement slurry is poured into the bolt holes and the internal threaded sleeve for lifting to seal and reinforce them. Multiple standard width prefabricated middle plates are assembled and installed as a whole to form a complete prefabricated middle plate structure.
[0094] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of implementation of the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. An assembled station middle plate with a sinking structure of a longitudinal and transverse beam system, including a permanent and temporary combined frame system, characterized in that: A sunken hanging wall structure is arranged at the lower end of the permanent-temporary combined frame system, a standard width prefabricated middle plate (11) is laid in the permanent-temporary combined frame system, and the standard width prefabricated middle plate (11) is a prefabricated assembly plate, and a sunken width prefabricated middle plate (12) is laid in the hanging wall structure, and the sunken width prefabricated middle plate (12) is a prefabricated assembly plate.
2. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 1 is characterized by: The sunken width prefabricated middle plate (12) is fixed to the hanging wall structure, and the sunken width prefabricated middle plate (12) is lower than the standard width prefabricated middle plate (11).
3. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 1 is characterized by: The permanent-temporary combined frame system comprises parallel prefabricated underground continuous walls (1), a cast-in-place middle waist beam (2) is cast inside the prefabricated underground continuous wall (1), a cast-in-place middle cross beam (3) is cast between the cast-in-place middle waist beams (2), and a cast-in-place middle longitudinal beam (4) is arranged in the middle of the cast-in-place middle cross beam (3).
4. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 3 is characterized by: The suspended wall structure comprises a suspended wall (7) below the middle cross beam, a middle suspended wall (8) below the middle cross beam, and a suspended wall (9) below the middle longitudinal beam. The suspended wall (7) below the middle cross beam and the middle suspended wall (8) below the middle cross beam are arranged below the cast-in-place middle cross beam (3), and the suspended wall (9) below the middle longitudinal beam is arranged below the cast-in-place middle longitudinal beam (4).
5. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 4 is characterized by: The side hanging wall (7) below the middle cross beam, the middle hanging wall (8) below the middle cross beam, the hanging wall (9) below the middle longitudinal beam and the hole side beam (6) are combined to form a plurality of sinking areas.
6. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 3 is characterized by: The cast-in-place middle longitudinal beam (4) is provided with a middle plate column node (5) at the position of the structural column, and the upper and lower ends of the middle plate column node (5) are reserved for structural column connection conditions in the main body reconstructing stage.
7. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 5 is characterized by: The hole side beams (6) are arranged between the cast-in-place middle cross beams (3); the cast-in-place middle cross beams (3) are multiple and are arranged in parallel at equal intervals.
8. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 5 is characterized by: A hole (10) is provided between the cast-in-place middle cross beam (3) and the middle hanging wall (8) below the middle cross beam.
9. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 1 is characterized by: Both sides of the standard width prefabricated middle plate (11) are assembled and fixed to the cast-in-place middle cross beam (3), and adjacent standard width prefabricated middle plates (11) are butt-jointed and fixed.
10. The assembled station middle plate with a sinking structure of a longitudinal and transverse beam system according to claim 5, characterized in that: The two sides of the sinking width prefabricated middle plate (12) are assembled and fixed to the hole side beams (6) and the hanging wall (9) under the middle longitudinal beam, and the adjacent sinking width prefabricated middle plates (12) are butt-jointed and fixed.