Prefabricated ribbed bottom plate of concrete rib laminated slab and concrete rib laminated slab
By combining wire conduit troughs with steel ribs in concrete ribbed composite slabs, an overall tensile and compressive structure is formed, which solves the problems of wire conduit layout and production costs, and achieves efficient manufacturing and improved flexural stiffness.
Patent Information
- Application Number
- CN202422483495.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The existing concrete ribbed composite floor slabs are prone to weakening the rib structure when arranging mechanical and electrical conduits, resulting in breakage, and are inconvenient to produce. In addition, the steel truss or steel pipe truss solutions are expensive and difficult to manufacture.
By combining wire conduit troughs with steel ribs, the steel ribs and concrete ribs form an overall tensile and compressive structure. A wire conduit space is formed between the steel ribs and the wire conduit troughs. The steel ribs are connected to the concrete ribs through anchors or structural adhesives to form an overall structure.
The wire pipe is conveniently arranged, a large bending rigidity is maintained, production costs are reduced, and cracking of the concrete rib is prevented during the hoisting and transportation process.
Smart Images
Figure CN223482088U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prefabricated buildings, and in particular relates to a prefabricated ribbed bottom plate and a concrete ribbed composite slab. Background Technology
[0002] Ribbed composite concrete slabs typically employ a method of creating openings in the ribs to allow for the horizontal placement of electrical conduits and wiring. However, this method can weaken the concrete ribs, leading to their breakage. Furthermore, production is inconvenient, which has hindered the widespread adoption of ribbed composite slabs.
[0003] Other solutions use steel trusses or steel pipe trusses to connect the base plate and the ribs to form a space for conduits to pass under the ribs, but this solution is expensive and difficult to manufacture. Therefore, this utility model was developed. Utility Model Content
[0004] The purpose of this utility model is to provide a composite slab that is convenient for conduit arrangement, can maintain a large bending stiffness of the precast base slab, and has low production cost. To this end, this utility model provides a precast ribbed base slab of a concrete-ribbed composite slab, characterized in that it includes an integrally formed base slab part and a concrete rib part; the concrete rib part forms a conduit groove, and steel ribs are arranged on the groove opening; the steel ribs connect the concrete rib parts on both sides of the groove opening to form an integral tensile and compressive strength structure; a conduit space is formed between the steel ribs and the conduit groove.
[0005] Preferably, the steel rib is a steel plate, and the steel plate covers the groove.
[0006] Preferably, the steel plate is connected to the concrete rib portions on both sides of the groove by anchors.
[0007] Preferably, the bottom surface of the steel plate has a rough interlocking surface, which interlocks with the concrete rib portions on both sides of the groove.
[0008] Preferably, the bottom surface of the steel plate is bonded to the top of the concrete rib portion using structural adhesive.
[0009] Preferably, the steel rib is a U-shaped plate, which is inverted and placed in the conduit groove, with the two folded edges of the U-shaped plate inserted into the concrete rib portions on both sides of the groove opening.
[0010] Preferably, the steel rib includes a steel plate and at least two rib plates, the two rib plates being vertically disposed at the bottom of the steel plate, and the two rib plates respectively abutting against the concrete rib portions on both sides of the conduit groove; the steel rib is connected to the concrete rib portions on both sides of the conduit groove.
[0011] Preferably, at least the rib plate of the steel rib is anchored or glued to the concrete rib portion on both sides of the conduit groove.
[0012] Preferably, the base plate portion is provided with structural ribs.
[0013] This application also provides a concrete ribbed composite slab, characterized in that it includes a precast ribbed base slab, on which a cast-in-place floor slab is cast and formed, the cast-in-place floor slab covering the concrete rib portion and the steel rib.
[0014] The technical effects achieved by the above-mentioned technical solution of this utility model are derived from one or more of the following combinations:
[0015] This solution uses a conduit trench and steel ribs to create space for conduit installation, which ensures ample space for conduit installation, is relatively easy to manufacture, and guarantees the structural bending load-bearing capacity of the conduit trench.
[0016] The steel ribs connect the concrete ribs on both sides of the conduit trench. The steel ribs themselves can bear pressure and also provide tensile strength to the concrete ribs during hoisting and transportation. Attached Figure Description
[0017] Figure 1 The diagram illustrates the structure of this utility model.
[0018] Figure 2 The diagram shows the structural disassembly of this utility model.
[0019] Figure 3 This diagram illustrates the structure of a steel rib in this invention.
[0020] Figure 4 This diagram illustrates another type of steel rib structure in this invention.
[0021] Figure 5 This diagram illustrates the structure of the concrete ribbed composite slab in this invention. Detailed Implementation
[0022] The following description is provided to enable those skilled in the art to implement and use the present invention and to incorporate it into specific application contexts. Various modifications and uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Therefore, the present invention is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.
[0023] In the following detailed description, numerous specific details are set forth to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that practice of the present invention is not necessarily limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without detailed representation to avoid obscuring the present invention.
[0024] Readers should note all documents and references submitted concurrently with this specification and open to public inspection, the contents of which are incorporated herein by reference. Unless otherwise expressly stated, all features disclosed in this specification (including any appended claims, abstracts, and drawings) may be replaced by alternative features for the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features.
[0025] Note that, where used, the markings left, right, front, back, top, bottom, front, back, clockwise, and counterclockwise are merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or orientation between different parts of an object. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Note that, in practice, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments. The combination of the content following "further," "preferably," "even further," or "more preferably" with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment can form yet another embodiment.
[0028] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.
[0029] Example 1:
[0030] Please see Figures 1-4This embodiment provides a precast ribbed base slab of a reinforced concrete composite slab, comprising an integrally formed base slab portion 1 and a reinforced concrete rib portion 2. The reinforced concrete rib portion 2 forms a conduit groove 20, and steel ribs 3 are arranged on the groove opening of the conduit groove 20. The steel ribs 3 connect the reinforced concrete rib portions 2 on both sides of the groove opening to form an integral tensile and compressive strength structure; a conduit space 30 is formed between the steel ribs 3 and the conduit groove 20.
[0031] The steel ribs 3 serve a load-bearing function in the precast ribbed base plate; and during hoisting, transportation, or irregular vibration, they can also connect the concrete ribs 2 on both sides of the conduit groove 20 to provide tensile resistance, thereby preventing the concrete ribs 2 from cracking. In a preferred embodiment of this invention, the steel ribs 3 are steel plates 31, at least anchored or glued to the concrete ribs 2 on both sides of the conduit groove 20. Specifically, the steel plate 31 covers the opening of the conduit groove 20, and the steel plate 31 is connected to the concrete ribs 2 on both sides of the opening by anchors. It should be noted that the steel plate 31 is the most cost-effective building material in the context of the development of existing materials science in the construction field, but this should not be a limitation; it can also be other metal plates, polymer material plates, etc., capable of bearing pressure and tension.
[0032] Furthermore, please combine Figure 4 To improve the integrity of the steel plate 31 and the concrete rib portion 2, a rough interlocking surface 310 is formed on the bottom surface of the steel plate 31, which interlocks with the concrete ribs on both sides of the groove. Alternatively, the steel plate 31 can cover the groove of the conduit groove 20, and the bottom surface of the steel plate 31 can be bonded to the top of the concrete rib portion 2 with structural adhesive to achieve connection.
[0033] In another embodiment of this invention, the steel rib 3 is a U-shaped plate, which is upside down on the conduit groove 20. The two folded edges 311 of the U-shaped plate are inserted into the concrete rib portions 2 on both sides of the groove, thereby achieving the effect of using the steel rib 3 as a connecting bridge to link the concrete rib portions 2 on both sides.
[0034] In another embodiment of this invention, the steel rib 3 may further include a steel plate 31 and at least two rib plates, with the two rib plates vertically disposed at the bottom of the steel plate 31 and abutting against the concrete rib portions 2 on both sides of the conduit groove 20; the steel plate 31 is connected to the portions on both sides of the conduit groove 20. Alternatively, the two rib plates may be replaced with plugs such as pins 32 that can be inserted into the concrete rib portions 2.
[0035] The base plate 1 is preferably a prestressed plate, and the base plate 1 is provided with structural reinforcement, namely prestressed reinforcement.
[0036] The beneficial effects of this embodiment:
[0037] This solution uses a conduit trench and steel ribs to create space for conduit installation, which ensures ample space for conduit installation, is relatively easy to manufacture, and guarantees the structural bending load-bearing capacity of the conduit trench.
[0038] The steel ribs connect the concrete ribs on both sides of the conduit trench. The steel ribs themselves can bear pressure and also provide tensile strength to the concrete ribs during hoisting and transportation.
[0039] Example 2:
[0040] Please see Figure 5 and combined Figures 1-4 This embodiment provides a concrete ribbed composite slab, including a precast ribbed base slab, on which a cast-in-place floor slab layer 4 is cast and formed, the cast-in-place floor slab layer 4 covering the concrete rib portion 2 and the steel rib 3.
[0041] The precast ribbed base plate includes an integrally formed base plate portion 1 and a concrete rib portion 2. The concrete rib portion 2 forms a conduit groove 20, and steel ribs 3 are arranged on the groove opening of the conduit groove 20. The steel ribs 3 connect the concrete rib portions 2 on both sides of the groove opening to form an integral tensile and compressive strength structure; a conduit space 30 is formed between the steel ribs 3 and the conduit groove 20.
[0042] The steel ribs 3 serve a load-bearing function in the precast ribbed base plate; and during hoisting, transportation, or irregular vibration, they can also connect the concrete ribs 2 on both sides of the conduit groove 20 to provide tensile resistance, thereby preventing the concrete ribs 2 from cracking. In a preferred embodiment of this invention, the steel ribs 3 are steel plates 31, at least anchored or glued to the concrete ribs 2 on both sides of the conduit groove 20. Specifically, the steel plate 31 covers the opening of the conduit groove 20, and the steel plate 31 is connected to the concrete ribs 2 on both sides of the opening by anchors. It should be noted that the steel plate 31 is the most cost-effective building material in the context of the development of existing materials science in the construction field, but this should not be a limitation; it can also be other metal plates, polymer material plates, etc., capable of bearing pressure and tension.
[0043] Furthermore, please combine Figure 4 To improve the integrity of the steel plate 31 and the concrete rib portion 2, a rough interlocking surface 310 is formed on the bottom surface of the steel plate 31, which interlocks with the concrete ribs on both sides of the groove. Alternatively, the steel plate 31 can cover the groove of the conduit groove 20, and the bottom surface of the steel plate 31 can be bonded to the top of the concrete rib portion 2 with structural adhesive to achieve connection.
[0044] In another embodiment of this invention, the steel rib 3 is a U-shaped plate, which is upside down on the conduit groove 20. The two folded edges 311 of the U-shaped plate are inserted into the concrete rib portions 2 on both sides of the groove, thereby achieving the effect of using the steel rib 3 as a connecting bridge to link the concrete rib portions 2 on both sides.
[0045] In another embodiment of this invention, the steel rib 3 may further include a steel plate 31 and at least two rib plates, with the two rib plates vertically disposed at the bottom of the steel plate 31 and abutting against the concrete rib portions 2 on both sides of the conduit groove 20; the steel plate 31 is connected to the portions on both sides of the conduit groove 20. Alternatively, the two rib plates may be replaced with plugs such as pins 32 that can be inserted into the concrete rib portions 2.
[0046] The base plate 1 is preferably a prestressed plate, and the base plate 1 is provided with structural reinforcement, namely prestressed reinforcement.
[0047] The beneficial effects of this embodiment:
[0048] This solution uses a conduit trench and steel ribs to create space for conduit installation, which ensures ample space for conduit installation, is relatively easy to manufacture, and guarantees the structural bending load-bearing capacity of the conduit trench.
[0049] The steel ribs connect the concrete ribs on both sides of the conduit trench. The steel ribs themselves can bear pressure and also provide tensile strength to the concrete ribs during hoisting and transportation.
[0050] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.
Claims
1. A precast ribbed bottom slab of a reinforced concrete composite slab, characterized in that, It includes an integrally formed base plate and a concrete rib section; the concrete rib section forms a conduit groove, and steel ribs are arranged on the groove opening of the conduit groove. The steel ribs connect the concrete rib sections on both sides of the groove opening to form an integral tensile and compressive strength structure; a conduit space is formed between the steel ribs and the conduit groove.
2. The precast ribbed base plate as described in claim 1, characterized in that: The steel rib is a steel plate, and the steel plate covers the groove.
3. The precast ribbed base plate as described in claim 2, characterized in that: The steel plate is connected to the concrete ribs on both sides of the groove by anchors.
4. The precast ribbed base plate as described in claim 2 or 3, characterized in that: The bottom surface of the steel plate has a rough interlocking surface, which interlocks with the concrete ribs on both sides of the groove.
5. The precast ribbed base plate as described in claim 2 or 3, characterized in that: The bottom surface of the steel plate is bonded to the top of the concrete rib section using structural adhesive.
6. The precast ribbed base plate as described in claim 1, characterized in that: The steel rib is a U-shaped plate, which is inverted and placed in the conduit groove. The two folded edges of the U-shaped plate are inserted into the concrete rib portions on both sides of the groove opening.
7. The precast ribbed base plate as described in claim 1, characterized in that: The steel rib includes a steel plate and at least two rib plates, the two rib plates being erected vertically at the bottom of the steel plate, and the two rib plates respectively abutting against the concrete rib portions on both sides of the conduit groove; the steel rib is connected to the concrete rib portions on both sides of the conduit groove.
8. The precast ribbed bottom plate as described in claim 7, characterized in that: At least the steel rib plate is anchored or glued to the concrete rib portion on both sides of the conduit groove.
9. The precast ribbed base plate as described in claim 1, characterized in that: The base plate is equipped with structural ribs.
10. A reinforced concrete ribbed composite slab, characterized in that, The precast ribbed base plate according to any one of claims 1 to 9 is provided, wherein a cast-in-place floor slab is cast on the precast ribbed base plate, and the cast-in-place floor slab covers the concrete rib portion and the steel rib.