RPC evacuation platform structure

Abstract

The utility model relates to an RPC evacuation platform structure which comprises an RPC support and RPC platform panels, the number of the RPC platform panels is more than two, a flat steel pressing plate is arranged above a connecting gap at the splicing position of every two adjacent RPC platform panels, more than two screw rods perpendicular to the flat steel pressing plate are fixed to the bottom of the flat steel pressing plate at intervals, and the screw rods are fixed to the bottom of the flat steel pressing plate at intervals. Each screw penetrates through a connecting gap between two adjacent RPC platform panels and correspondingly penetrates through a mounting hole reserved in the RPC support, the lower end of each screw is in threaded connection with a locking nut, and the flat steel pressing plate is driven by screwing the locking nuts to press the two adjacent RPC platform panels. A fixed connection mode of the steel plate and the screw is adopted, the connection mode combines high strength of the steel plate and reliability of connection of the screw, displacement between components can be effectively limited, stability of the evacuation platform in the using process is guaranteed, the evacuation platform has good wind pressure resistance, and the evacuation platform is convenient to use. And the safety requirement of the evacuation platform in actual use is fully met.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground tunnel evacuation platform technical field, concretely relates to a RPC evacuation platform structure. BACKGROUND

[0002] In current rail transit construction, RPC (reactive powder concrete) evacuation platform is widely used in underground tunnels and other places to provide important channels for personnel evacuation in emergency situations. At present, there are mainly two common combination forms of RPC evacuation platform structure.

[0003] As shown in Figure 1 , one is a combination structure of steel support + RPC prefabricated platform plate. Its working principle is to fix the support and the platform plate by screw rod, and to limit the displacement of the platform plate and resist wind pressure by this way. In order to meet the strict requirements of underground tunnels on structure corrosion and fire prevention, steel support usually needs to be painted with anticorrosive and fireproof paint. In actual application scenarios, this structure can ensure the stability of the evacuation platform to a certain extent.

[0004] As shown in Figure 2 , the other is a combination structure of RPC support + RPC prefabricated platform plate. This structure is fixed by setting limiting bosses on the support and the platform plate to realize the function of limiting displacement. This structure simplifies the construction process to a certain extent, and has certain advantages in durability by using the characteristics of RPC material itself.

[0005] The above two existing RPC evacuation platform structures have many problems and deficiencies:

[0006] 1. Steel support + RPC prefabricated platform plate combination structure:

[0007] 1) Steel support is easy to corrode: Underground tunnel environment is usually humid, and may contain corrosive gases such as hydrogen sulfide, carbon dioxide, and water containing various chemicals. In such an environment, steel support is prone to corrosion. With the aggravation of corrosion, the cross-sectional area of steel support gradually decreases, and according to the principle of material mechanics, its carrying capacity will decrease. At the same time, the rust and other products produced by corrosion will make the surface of the support rough and uneven, causing stress concentration to intensify and accelerate the damage of the support. In addition, at the screw connection part, corrosion may cause problems in the cooperation between the screw and the support, which may cause the screw to loosen, and in severe cases, it may even be impossible to disassemble, which greatly threatens the safety performance of the evacuation platform.

[0008] 2) Difficult to apply corrosion and fireproof paint: In the actual construction process, it is difficult to apply corrosion and fireproof paint to the steel support. Due to the complex structure of the support, there are many corners, gaps and other parts, which makes it difficult to ensure uniform coverage of the paint. This leads to uneven coating thickness, with some areas having too thin coating, which cannot meet the expected corrosion and fireproof standards. It may also result in missed coating, exposing the support to harsh environments, increasing the risk of corrosion and fire hazards. If the quality of the paint application does not meet the standards, the service life of the support will be greatly reduced, which may lead to structural safety accidents.

[0009] 2) RPC support + RPC prefabricated platform plate combination structure:

[0010] 1) Limiting boss is easily damaged: The limiting boss of the RPC support is easily damaged during the process of prefabrication demolding, hoisting and installation due to collision and friction during operation. Once the limiting boss is damaged, it will affect the connection stability between the support and the platform plate, reducing the overall performance of the evacuation platform.

[0011] 2) High installation precision: The installation of the limiting boss requires high precision. In the actual installation process, the limiting bosses on the support and platform plate need to be accurately aligned. Any deviation will result in loose connection, affecting the displacement limiting effect and reducing the reliability of the evacuation platform. This not only increases the construction difficulty and time, but also requires high technical level of the construction personnel.

[0012] 3) Insufficient wind pressure resistance: The platform plate in this structure is too light to effectively resist wind pressure. Especially in some underground tunnels with complex ventilation conditions, wind pressure may cause the platform plate to sway, shift or even be overturned and fall into the track area, posing a threat to the safety of personnel evacuation and train operation. SUMMARY

[0013] The purpose of the present application is to overcome the shortcomings of the prior art and provide an RPC evacuation platform structure.

[0014] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0015] The utility model provides a kind of RPC evacuation platform structure, including RPC support and RPC platform panel, one side of the RPC support is connecting surface, and the connecting surface is connected with shield segment and fixed;The top of the RPC support is support surface, and RPC platform panel is paved on the support surface;The RPC platform panel is more than two, and the connecting gap of the joint of adjacent two RPC platform panels is equipped with flat steel pressing plate above, the bottom of the flat steel pressing plate is fixed with two or more than two vertical screw rods, each screw rod is respectively threaded through the connecting gap between adjacent two RPC platform panels and correspondingly threaded through the mounting hole reserved on the RPC support, and the lower end of each screw rod is respectively screwed with locking nut, and the flat steel pressing plate is pressed adjacent two RPC platform panels by rotating the locking nut.

[0016] Further, the side surface of the shield segment is fixed with a pre-buried steel plate, and the RPC support and the pre-buried steel plate are connected together by pouring.

[0017] Further, the surface of the RPC platform panel is provided with an anti-skid structure.

[0018] The utility model adopts the above technical scheme, and has the beneficial effects compared with the prior art:

[0019] 1) Improve structural durability: the utility model is entirely made of RPC material to make support and platform plate, and the RPC material itself has good corrosion resistance, compared with the steel support, without additional corrosion-resistant paint, fundamentally avoiding a series of problems caused by corrosion of steel support, greatly improving the durability and service life of the evacuation platform.

[0020] 2) Reduce construction difficulty: abandon the complex construction process of steel support corrosion-resistant and fire-resistant paint, at the same time, the connection mode of steel plate + screw rod is relatively low in construction precision compared with the connection of RPC support limiting boss, and the construction process is more simple and convenient, which can effectively shorten the construction period and reduce the construction cost.

[0021] 3) Enhance connection reliability: the connection mode of steel plate + screw rod is more stable and reliable than the connection of RPC support limiting boss. The fastening effect of screw rod and the strengthening effect of steel plate make the connection between support and platform plate more closely, which can better limit displacement when bearing various external forces, and ensure the structural stability of the evacuation platform.

[0022] 4) Improve wind pressure resistance: the support and platform plate are connected by steel plate + screw rod, which significantly improves the wind pressure resistance and can effectively cope with various complex ventilation environments to ensure personnel evacuation and driving safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further described in detail in combination with the drawings and specific embodiments:

[0024] Figure 1 The sectional view of the existing technology middle steel support + RPC prefabricated platform plate;

[0025] Figure 2 The sectional view of the existing technology RPC support + RPC prefabricated platform plate;

[0026] Figure 3 The sectional view of the RPC evacuation platform structure (one) of the utility model;

[0027] Figure 4 The sectional view of the RPC evacuation platform structure (two) of the utility model;

[0028] Figure 5 The plan view of the RPC evacuation platform structure of the utility model. DETAILED DESCRIPTION

[0029] As Figures 3-5 shown, the utility model discloses a RPC evacuation platform structure, including RPC support 1 and RPC platform panel 2, and RPC (active powder concrete) material has high strength, high durability, high impermeability and other excellent performance, can effectively improve the overall performance of evacuation platform.

[0030] The side of RPC support 1 is connecting face, and the connecting face is connected and fixed with shield segment 3, wherein the side of shield segment 3 is fixed with embedded steel plate 4, and RPC support 1 is connected together with embedded steel plate 4 by pouring, to be connected and fixed with shield segment 3.

[0031] The top of RPC support 1 is support face, and RPC platform panel 2 is laid on the support face, specifically, RPC platform panel 2 is two or more, and the connecting gap at the joint of adjacent two RPC platform panels 2 is provided with flat steel pressing plate 5 (flat steel pressing plate 5 completely covers the connecting gap), and the bottom of flat steel pressing plate 5 is fixed with two or more screw rods 6 arranged vertically, each screw rod 6 passes through the connecting gap between adjacent two RPC platform panels 2 and corresponds to the installation hole 7 reserved on RPC support 1, and the lower end of each screw rod 6 is respectively connected with lock nut 8, and flat steel pressing plate 5 is pressed tightly to adjacent two RPC platform panels 2 by rotating lock nut 8.

[0032] The surface of RPC platform panel 2 is provided with anti-skid structure 9, and the anti-skid structure 9 generally adopts anti-skid convex. The connecting place of RPC platform panel 2 and flat steel pressing plate 5 is not designed with anti-skid structure 9, and the thickness of flat steel pressing plate 5 is consistent with the height of anti-skid structure 9.

[0033] In order to guarantee the reliability of connection, the length of flat steel pressing plate 5 and single-side RPC platform panel 2 overlap is generally not less than 2.5CM.

[0034] In the connecting mode, the utility model adopts the fixed connection mode of steel sheet + screw rod, this connecting mode combines the high strength of steel sheet and the reliability of screw rod connection, not only can effectively limit the displacement between parts, ensure the stability of evacuation platform in the use process, still has the good wind pressure resistance, fully satisfies the safety demand of evacuation platform in actual use.

[0035] The above describes the specific implementation of the utility model, but those skilled in the art should understand that this is only an example, and those skilled in the art can make various changes or modifications to this implementation without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. An RPC dispersing platform structure comprising an RPC support and an RPC platform panel, one side of the RPC support is a connecting surface, which is connected and fixed with a shield segment; the top of the RPC support is a supporting surface, and the RPC platform panel is laid on the supporting surface; characterized in that: The RPC platform panel is more than two, a flat steel pressing plate is arranged above the connecting gap of the joint of the two adjacent RPC platform panels, the bottom of the flat steel pressing plate is fixed with two or more than two vertical screws, each screw passes through the connecting gap between the two adjacent RPC platform panels and corresponds to the reserved mounting hole of the RPC support, and the lower end of each screw is threadedly connected with a locking nut, and the flat steel pressing plate is pressed against the two adjacent RPC platform panels by rotating the locking nut.

2. The RPC dispersal platform structure of claim 1, wherein: The side surface of the shield segment is fixed with a pre-buried steel plate, and the RPC support and the pre-buried steel plate are connected together by pouring.

3. The RPC dispersal platform structure of claim 1, wherein: The surface of the RPC platform panel is provided with an anti-skid structure.

Images