Steel pipe truss prestressed concrete laminated slab for subway platform
By using protective components on the concrete stacking plate of the subway platform to isolate the rib ends of the steel bars, the problem of easy damage to the concrete stacking plate during transportation and construction is solved, and the effect of improving safety and construction efficiency is achieved.
Patent Information
- Application Number
- CN202422168337.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The concrete stacking plates of the subway platform are easily damaged by the collision of steel bars at the rib ends during lifting and transportation. The rib structure is not easy to deal with during construction on the construction site, and the steel bars are prone to 'fighting'.
A prestressed concrete stacking plate for steel pipe truss for subway platforms is designed, and protective components are used to isolate the rib ends of the steel bars, including L-shaped plates, concave plates, stops and connecting structures. The first and second protective covers are formed through these components to effectively block and protect the steel bars.
It effectively prevents damage caused by the ribs during lifting and transportation of concrete stacking plates, avoids injuries to surrounding staff, and reduces the phenomenon of steel bars fighting during construction, improving construction efficiency and safety.
Smart Images
Figure CN222976217U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of subway construction, specifically to a prestressed concrete composite slab with a steel pipe truss for subway platforms. Background Art
[0002] A composite slab is an assembled monolithic floor slab formed by laminating a precast slab and a cast-in-place reinforced concrete layer. The composite floor slab has good integrity, and the upper and lower surfaces of the slab are flat, which is convenient for the decoration of the finishing layer. It is suitable for high-rise buildings and large-span buildings with relatively high requirements for overall stiffness. A composite floor slab is an assembled monolithic floor slab formed by laminating a precast slab and a cast-in-place reinforced concrete layer. Therefore, when constructing the platform of the subway, a platform floor slab is made of multiple concrete composite slabs and steel trusses.
[0003] In order to ensure the strength and prestress of the composite slab, multiple steel bars are usually fixed inside it to enhance the strength and hardness of the composite slab itself. On the market, the four sides or two sides of the composite slab usually have a steel bar protruding structure so that the composite slab can be tied to the steel bar truss. However, during the hoisting and transportation of the concrete composite slab, the composite slab is prone to collision, and the steel bars at the protruding ends are likely to cause damage to the composite slab. Moreover, during the construction process on the construction site, the form of the protruding steel bar structure is not easy to construct, and the phenomenon of "conflicting steel bars" is likely to occur. Utility Model Content
[0004] Aiming at the deficiencies of the prior art, this application provides a prestressed concrete composite slab with a steel pipe truss for subway platforms, which has the advantages of not being easily damaged, etc., and solves the problem of being easily damaged.
[0005] To achieve the above object, this application provides the following technical solution: A prestressed concrete composite slab with a steel pipe truss for subway platforms, including a concrete composite slab main body. Multiple steel bars are fixed inside the concrete composite slab main body, and a protection component is provided outside the concrete composite slab main body for isolating the protruding ends of the multiple steel bars from the outside.
[0006] The protection component includes two L-shaped plates, two concave plates, stoppers fixedly installed at the left and right ends of the L-shaped plates for abutting against the concave plates, a baffle fixedly installed at the top of the concave plates, and connection structures fixedly installed at the front and rear ends of the two concave plates for connecting them to the L-shaped plates.
[0007] Adopting the above technical solution can effectively prevent the damage of adjacent concrete composite slab main bodies caused by the protruding steel bars during the hoisting and transportation of the concrete composite slab main body, and can also avoid harm to the surrounding staff; and when adjusting the corresponding positions of two adjacent concrete composite slab main bodies, the phenomenon of conflicting steel bars when the two adjacent concrete composite slab main bodies are aligned can be effectively reduced.
[0008] Further, the left and right stoppers and the L-shaped plate form a first protective cover.
[0009] With the above technical solution, the reinforcing bar ends at the front and rear ends of the concrete composite slab main body can be shielded.
[0010] Furthermore, the concave plate and the baffle are combined to form a second protective cover.
[0011] With the above technical solution, the reinforcing bar ends at the left and right ends of the concrete composite slab main body are shielded.
[0012] Furthermore, the connecting structure includes two groups of inserting blocks, two groups of inserting slots, two groups of plugging blocks and two groups of plugging slots.
[0013] With the above technical solution, it is convenient for the two first protective covers to be connected to the two second protective covers, and it is also convenient for the protective component composed of the two first protective covers and the two second protective covers to be installed on the outside of the concrete composite slab main body.
[0014] Furthermore, one opposite wall of the front and rear two groups of inserting blocks is respectively fixed to one opposite wall of the front and rear two groups of blocking blocks.
[0015] With the above technical solution, the blocking block can be connected to the concrete composite slab main body through the inserting block.
[0016] Furthermore, the front and rear two groups of inserting slots are respectively opened on the front and rear two walls of the concrete composite slab main body.
[0017] With the above technical solution, it is convenient for the first protective cover to be inserted on its outside.
[0018] Furthermore, the two groups of plugging blocks are respectively fixed to the front and rear two walls of the two concave plates.
[0019] With the above technical solution, the concave plate can be connected to the blocking block through the plugging block.
[0020] Furthermore, the front and rear two groups of plugging slots are respectively opened on one opposite wall of the two blocking blocks.
[0021] With the above technical solution, it is convenient for the first protective cover and the second protective cover to be spliced.
[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0023] For the steel pipe truss prestressed concrete composite slab used in the subway platform, by providing a protective component, it can effectively prevent the damage of adjacent concrete composite slab main bodies caused by the protruding reinforcing bars during the hoisting and transportation of the concrete composite slab main body, and can also avoid harm to the surrounding staff; and when adjusting the corresponding positions of two adjacent concrete composite slab main bodies, through the two first protective covers and the second protective cover, the phenomenon of reinforcing bar collision when two adjacent concrete composite slab main bodies are aligned can be effectively reduced. Description of the Drawings
[0024] Figure 1 This is the structural schematic diagram of the present application;
[0025] Figure 2 This is the structural schematic diagram of the concrete composite slab and steel bars of the present application;
[0026] Figure 3 This is the structural schematic diagram of the stop block and the L-shaped plate of the present application;
[0027] Figure 4 This is the structural schematic diagram of the concave plate and the baffle of the present application.
[0028] In the figure: 1. The main body of the concrete composite slab; 2. Steel bars; 31. The first protective cover; 311. L-shaped plate; 312. Stop block; 32. The second protective cover; 321. Baffle; 322. Concave plate; 33. Insert block; 34. Insert slot; 35. Plug-in slot; 36. Plug-in block. Detailed implementation manners
[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0030] Please refer to Figures 1 to 2 , the prestressed concrete composite slab for a subway platform in this embodiment includes a main body 1 of the concrete composite slab. A plurality of steel bars 2 are fixed inside the main body 1 of the concrete composite slab, and a protective component for isolating the outgoing ends of the plurality of steel bars 2 from the outside is provided on the outer side of the main body 1 of the concrete composite slab.
[0031] Please refer to Figures 1 to 4 , the protective component in this embodiment includes two L-shaped plates 311, two concave plates 322, stop blocks 312 fixedly installed at the left and right ends of the L-shaped plate 311 for abutting against the concave plate 322, a baffle 321 fixedly installed at the top end of the concave plate 322, and a connection structure fixedly installed at the front and rear ends of the two concave plates 322 for connecting with the L-shaped plate 311.
[0032] Among them, the left and right two stop blocks 312 and the L-shaped plate 311 are combined to form the first protective cover 31, so that the first protective cover 31 can block the outgoing ends at the front and rear ends of the main body 1 of the concrete composite slab, and can prevent the damage of the adjacent main body 1 of the concrete composite slab caused by the outgoing bars during the hoisting and transportation of the main body 1 of the concrete composite slab, and can also avoid causing harm to the surrounding staff.
[0033] Moreover, the concave plate 322 and the baffle 321 are combined to form the second protective cover 32, so that the second protective cover 32 can block the rebar outlets at the left and right ends of the concrete composite slab body 1, so as to further ensure that the concrete composite slab body 1 is not easily damaged during hoisting and transportation.
[0034] Please refer to Figures 2 to 4 , the connection structure in this embodiment includes two groups of insertion blocks 33, two groups of slots 34, two groups of insertion blocks 36 and two groups of insertion slots 35.
[0035] Secondly, one wall of the front and rear two groups of insertion blocks 33 facing each other is respectively fixed to one wall of the front and rear two groups of stoppers 312. Moreover, the front and rear two groups of slots 34 are respectively opened on the front and rear walls of the concrete composite slab body 1. The insertion block 33 is located inside the slot 34 and is inserted thereinto, so that the stopper 312 can be inserted into the concrete composite slab body 1 through the insertion block 33, and the two first protective covers 31 can be inserted at the front and rear ends of the concrete composite slab body 1.
[0036] At the same time, the two groups of insertion blocks 36 are respectively fixed to the front and rear walls of the two concave plates 322. Moreover, the front and rear two groups of insertion slots 35 are respectively opened on one wall of the two stoppers 312 facing each other. The insertion block 36 is inserted into the inside of the insertion slot 35, so that the two first protective covers 31 and the second protective cover 32 can be spliced together.
[0037] It should be noted that if the rebar outlets of the concrete composite slab body 1 are on two sides and at the left and right ends, the positions of the slots 34 are adjusted to the left and right ends of the concrete composite slab body 1, and the positions of the two groups of insertion blocks 33 are adjusted to the concave plates 322, so that the second protective cover 32 can also be connected to the concrete composite slab body 1 without the cooperation of the two first protective covers 31.
[0038] The working principle of the above embodiment is:
[0039] During use, by placing the second protective cover 32 formed by combining two concave plates 322 and two baffle plates 321 between the first protective cover 31 formed by combining two L-shaped plates 311 and two groups of stoppers 312, the two second protective covers 32 can be respectively inserted into the insertion slots 35 of the two groups of stoppers 312 through the two groups of insertion blocks 36. Thus, the two second protective covers 32 can be spliced with the two first protective covers 31. Then, the two groups of insertion blocks 33 can be inserted into the insertion slots 34 of the concrete composite slab main body 1, so that the two first protective covers 31 and the two second protective covers 32 can be installed on the outer side of the concrete composite slab main body 1, in order to be able to shield the outgoing ends of the steel bars 2, effectively preventing damage to adjacent concrete composite slab main bodies 1 caused by the outgoing steel bars during the hoisting and transportation of the concrete composite slab main body 1, and also avoiding harm to the surrounding workers. Moreover, after adjacent two concrete composite slab main bodies 1 are aligned, the two first protective covers 31 and the second protective covers 32 can be removed from the outer side of the concrete composite slab main body 1, effectively reducing the phenomenon of the steel bars 2 colliding when adjacent two concrete composite slab main bodies 1 are aligned.
Claims
1. A steel tube truss prestressed concrete composite slab for a subway platform, comprising a concrete composite slab body (1), characterized in that: A plurality of steel bars (2) are fixed inside the concrete composite slab body (1), and a protective component for isolating the outlet ends of the plurality of steel bars (2) from the outside is provided on the outside of the concrete composite slab body (1); The protection component comprises two L-shaped plates (311), two concave plates (322), a stopper (312) fixedly mounted on the left and right ends of the L-shaped plate (311) for contacting the concave plates (322), a stopper (321) fixedly mounted on the top of the concave plates (322), and a connection structure fixedly mounted on the front and rear ends of the two concave plates (322) for connection with the L-shaped plates (311).
2. The steel tube truss prestressed concrete composite slab for subway platform according to claim 1 is characterized in that: The two left and right stoppers (312) and the L-shaped plate (311) are combined to form a first protective cover (31).
3. The steel tube truss prestressed concrete composite slab for subway platform according to claim 1 is characterized in that: The concave plate (322) and the baffle plate (321) are combined to form a second protective cover (32).
4. The steel tube truss prestressed concrete composite slab for subway platform according to claim 1, characterized in that: The connection structure comprises two groups of plug blocks (33), two groups of slots (34), two groups of connection blocks (36) and two groups of connection slots (35).
5. The steel tube truss prestressed concrete composite slab for subway platform according to claim 4, characterized in that: The opposite walls of the front and rear groups of inserting blocks (33) are respectively fixed to the opposite walls of the front and rear groups of stop blocks (312).
6. The steel tube truss prestressed concrete composite slab for subway platform according to claim 4, characterized in that: The front and rear groups of slots (34) are respectively arranged on the front and rear walls of the concrete composite board body (1).
7. The steel tube truss prestressed concrete composite slab for subway platform according to claim 4, characterized in that: The two groups of plug-in blocks (36) are respectively fixed to the front and rear walls of the two concave plates (322).
8. The steel tube truss prestressed concrete composite slab for subway platform according to claim 4, characterized in that: The front and rear groups of the plug-in slots (35) are respectively arranged on opposite walls of the two stoppers (312).