High-speed rail platform cap stone end reverse ridge structure

Abstract

The utility model discloses a high-speed rail platform cap stone end reverse ridge structure which comprises a concrete reverse ridge (2) located below the end of a cap stone layer (1), a cement mortar leveling layer (3) is arranged between the concrete reverse ridge (2) and the cap stone layer (1), and embedded steel bars (5) connected with the cap end of a platform wall (4) are arranged at the bottom of the concrete reverse ridge (2). The concrete reverse ridge (2) comprises a concrete layer (201), reinforcing steel bars (202) are arranged in the concrete layer (201), and the reinforcing steel bars (202) are bound to embedded steel bars (5) with the lower half portions located in the cap ends of the platform walls (4). The utility model has the characteristic that the falling phenomenon of the plastered layer of the side vertical surface can be effectively solved.

Description

Technical Field

[0001] This utility model relates to a platform cap structure, and more particularly to a reverse retaining structure at the end of a high-speed railway platform cap stone. Background Technology

[0002] Platform caps on high-speed railway stations are typically laid using a dry-laid cement mortar layer. This often results in mortar overflowing from the sides of the platform cap, affecting its appearance. To address this, plastering is usually applied to the sides after the platform cap is laid. Since the plastering layer and the dry-laid layer are two separate entities without proper bonding, relying solely on the adhesion of the plaster itself, this adhesion is prone to failure and deformation under complex environmental conditions. When high-speed trains pass at speeds up to 300 km / h, the vibrations are significant, easily causing the plaster layer on the side of the platform cap to detach. Therefore, existing technology suffers from the problem of easy detachment of the side plaster layer. Utility Model Content

[0003] The purpose of this invention is to provide a reverse retaining structure at the end of the cap stone of a high-speed railway station. This invention effectively solves the problem of plaster layer peeling off the side facade.

[0004] The technical solution of this utility model is: a high-speed railway platform cap stone end inverted retaining structure, including a concrete inverted retaining structure located below the end of the cap stone layer, and a cement mortar leveling layer is provided between the concrete inverted retaining structure and the cap stone layer, and the bottom of the concrete inverted retaining structure is provided with anchor bars connected to the cap stone end of the platform wall; the concrete inverted retaining structure includes a concrete layer, and steel bars are provided in the concrete layer, and the steel bars are tied to the anchor bars in the lower half located in the cap stone end of the platform wall.

[0005] In the aforementioned high-speed railway platform cap stone end inverted retaining wall structure, the upper surface of the platform cap stone end is provided with a rebar hole that matches the rebar, and the rebar hole is filled with glue.

[0006] In the aforementioned high-speed railway platform cap stone end inverted retaining structure, the outer side of the concrete inverted retaining is provided with an exterior wall coating layer.

[0007] In the aforementioned high-speed railway platform cap stone end inverted retaining wall structure, the upper surface of the platform wall cap is provided with a roughened layer.

[0008] Compared with existing technologies, this utility model replaces the traditional side plaster layer by installing a concrete upstand above the end of the platform cap, effectively preventing defects such as easy detachment of the traditional platform cap side plaster layer. Furthermore, this application uses rebar connections to fix the concrete upstand and the end of the platform cap, greatly increasing the stability of the platform cap and ensuring the safety of railway platform building equipment. In summary, this utility model effectively solves the problem of side plaster layer detachment. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] The markings in the attached diagram are: 1-cap stone layer, 2-concrete backsplash, 3-cement mortar leveling layer, 4-platform wall, 5-rebar anchoring, 201-concrete layer, 202-rebar, 6-rebar anchoring hole. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0012] Example. The inverted retaining wall structure at the end of the cap stone of the high-speed railway platform constitutes, as follows: Figure 1 As shown, it includes a concrete curb 2 located above the cap end of the platform wall 4 and below the end of the cap stone layer 1. A cement mortar leveling layer 3 is provided above the concrete curb 2, and a cement mortar layer located above the platform wall 1 is provided on the inner side of the concrete curb 2. The cap stone layer 1 is provided above the cement mortar leveling layer 3 and the cement mortar layer. The concrete curb 2 includes a concrete layer 201, and a steel bar 202 is provided in the concrete layer 201. The steel bar 202 is tied to the lower half of the anchor bar 5 located in the cap end of the platform wall 4.

[0013] The upper surface of the cap end of the platform wall 4 is provided with a rebar hole 6 that matches the rebar 5, and the rebar hole 6 is filled with glue.

[0014] The outer side of the concrete inverted wall 2 is covered with an exterior wall coating.

[0015] The upper surface of the cap end of the platform wall is provided with a roughened layer.

[0016] The upper part of the rebar is a threaded column, and the rebar includes a continuous rebar. A set of sleeves that mate with the rebar is provided on the side end of the continuous rebar. Nuts are located on the upper and lower sides of the sleeves on the threaded column of the rebar. Longitudinal rebars are also provided on both sides of the continuous rebar. During installation, simply screw the bottom nut into the rebar, then insert the sleeve into the rebar, and finally screw in the upper nut to tighten it. The rebar installation is simple and easy to install.

[0017] The capstone layer is exposed 2 cm outside the concrete retaining wall.

[0018] The cap stone ends are made of concrete upstands located above the base of the platform wall, with φ8 continuous steel bars inside. A 10mm plain cement mortar bonding layer is reserved on the upper part of the concrete upstand to facilitate adjustment of the cap stone laying height.

[0019] The construction process is as follows: 1. The surface of the base layer above the cap of the platform wall is roughened and grooves are chiseled out to ensure that the construction surfaces of the two construction stages are firmly bonded.

[0020] 2. Drill holes: Use a drill bit to drill holes in the base layer above the end of the platform wall cap. The drilling depth is 5cm, and the diameter of the drill bit needs to be 2mm larger than the steel bar.

[0021] 3. Clean the hole, removing any dust or dirt from inside;

[0022] 4. Prepare the anchoring adhesive and pour it into the hole;

[0023] 5. Rebar installation: Insert rebars until adhesive seeps out of the holes; the spacing between adjacent rebar installations should be greater than 200mm and not greater than 300mm.

[0024] 6. Tie the reinforcing bars;

[0025] 7. Formwork erection and concrete pouring;

[0026] 8. Grind the concrete on the side of the platform cap (i.e., the side of the concrete curb);

[0027] 9. Spray or brush exterior wall paint.

[0028] 10. A 10mm plain cement mortar bonding layer is reserved on the cement mortar leveling layer above the concrete curb to adjust the platform cap laying error before laying the cap stone layer.

Claims

1. The inverted retaining wall structure at the end of the cap stone of a high-speed railway station, characterized in that: The concrete inverted curb (2) is located below the end of the cap stone layer (1), and a cement mortar leveling layer (3) is provided between the concrete inverted curb (2) and the cap stone layer (1). The bottom of the concrete inverted curb (2) is provided with a rebar (5) connected to the cap end of the platform wall (4). The concrete inverted curb (2) includes a concrete layer (201), and a steel bar (202) is provided in the concrete layer (201). The steel bar (202) is tied to the rebar (5) located in the lower half of the cap end of the platform wall (4).

2. The inverted retaining wall structure at the end of the high-speed railway platform cap stone according to claim 1, characterized in that: The upper surface of the cap end of the platform wall (4) is provided with a rebar hole (6) that matches the rebar (5), and glue is provided in the rebar hole (6).

3. The inverted retaining wall structure at the end of the high-speed railway platform cap stone according to claim 1, characterized in that: The outer side of the concrete inverted wall (2) is covered with an exterior wall coating.

4. The inverted retaining wall structure at the end of the high-speed railway platform cap stone according to claim 1, characterized in that: The upper surface of the cap end of the platform wall (4) is provided with a roughened layer.

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