Prefabricated groove type plate and prefabricated groove type plate mounting system
By adopting prefabricated trough plates and prefabricated trough plate installation systems, and using prefabricated hoisting and part cast-in-place construction, the problems of insufficient seismic strength and low construction efficiency of existing prefabricated floor slabs are solved, and efficient and safe construction is achieved.
Patent Information
- Application Number
- CN202420622264.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The seismic strength of existing prefabricated floor slabs is less than that of supported cast-in-place floor slabs, and the construction efficiency of cast-in-place floor slabs is low.
Prefabricated groove plates and prefabricated groove plate installation systems are adopted, which include prefabricated layers of rectangular structures, downwardly extending rib beams, sealing parts, lifting ears, stressed steel bars at the bottom of the plate, rib beam stirrups and truss bars, and construction is carried out through prefabricated hoisting and part cast-in-place.
The construction efficiency is improved and the design concept equivalent to cast-in-place is realized. At the same time, while ensuring earthquake resistance strength, construction measures and safety hazards are reduced.
Smart Images
Figure CN222595299U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building engineering, in particular to a prefabricated grooved plate and a prefabricated grooved plate installation system. Background Art
[0002] With the development of technology, prefabricated building parts have become the main construction method in construction projects, such as prefabricated columns, prefabricated composite beams, floor slabs, etc.
[0003] The prefabricated floor slabs in the prior art are usually rectangular slabs made of steel bars and cast concrete, and their seismic strength is lower than that of supported cast-in-place floor slabs; cast-in-place floor slabs require a large amount of steel bars to support the construction building, which results in low construction efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a prefabricated trough plate and a prefabricated trough plate installation system, which adopts the form of prefabricated hoisting and partial cast-in-place for building construction. The prefabricated components of the system have a high degree of standardization, convenient construction, and good integrity. It can truly realize the design concept equivalent to cast-in-place, and improve construction efficiency while ensuring seismic strength.
[0005] To achieve the above object, the utility model provides the following technical solution: a prefabricated trough plate, comprising a prefabricated layer in a rectangular structure, two sides of the prefabricated layer are respectively provided with rib beams extending downward, and the remaining two sides of the prefabricated layer and located between the two rib beams are provided with blocking parts; the bottom edges of the two rib beams are provided with outwardly folded ears;
[0006] The prefabricated layer is provided with slab bottom stress-bearing steel bars, and the rib beams are provided with rib beam stirrups inside, which are hooped around the corresponding transverse bars of the slab bottom stress-bearing steel bars; truss bars are also embedded inside the prefabricated layer, and the top parts of the truss bars and rib beam stirrups are higher than the embedded layer.
[0007] Preferably, the stress-bearing steel bars at the bottom of the slab are staggered and arranged in a grid-like structure.
[0008] Preferably, the rib stirrups are arranged in a "U"-shaped structure, and both ends of the rib stirrups are bent inwards.
[0009] Preferably, both ends of the stress-bearing steel bars at the bottom of the rib beam pass through the prefabricated trough plate.
[0010] Preferably, a keyway is provided on the outer surface of the sealing portion.
[0011] Preferably, hanging nails are respectively provided at the four corners of the prefabricated layer.
[0012] The prefabricated trough plate installation system comprises a plurality of prefabricated trough plates, a plurality of prefabricated columns and prefabricated beams erected on the prefabricated columns; the prefabricated trough plates are erected on the prefabricated beams, and the corresponding ears between two adjacent prefabricated trough plates are abutted against each other and sealed; the corresponding rib beam stirrups between two adjacent prefabricated trough plates are fixedly connected by binding the top stress-bearing steel bars of the rib beams of the trough plates and the additional reinforcements at the seams, and the top stress-bearing steel bars of the rib beams of the trough plates and the additional reinforcements at the seams are arranged perpendicularly and staggered to each other; the top of the truss reinforcement is provided with cast-in-place longitudinal reinforcement.
[0013] Preferably, at least two joint reinforcement bars are provided between two adjacent prefabricated grooved plates, the corresponding joint reinforcement bars at the top are tied and connected with the longitudinal reinforcement of the cast-in-place layer, and the corresponding joint reinforcement bars are connected with each other by joint tie bars.
[0014] Preferably, the corresponding ears between the two prefabricated grooved plates are sealed and connected by foam glue.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model has a prefabricated grooved plate with ribbed beams to increase the bearing capacity, which can realize the construction process without support, greatly reducing the construction measures cost, and avoiding the safety hazards caused by the non-standard support erection. Compared with the traditional prefabricated structure system, the construction is carried out in the form of prefabricated hoisting and partial cast-in-place. The prefabricated components of this system are highly standardized, convenient to construct, and have good integrity. It can truly realize the design concept equivalent to cast-in-place, and improve the construction efficiency while ensuring the seismic strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the prefabricated grooved plate of the utility model;
[0018] Figure 2 For this utility model Figure 1 AA section view in;
[0019] Figure 3 The plane structure of the utility model Figure 1 ;
[0020] Figure 4 The plane structure of the utility model Figure 2 ;
[0021] Figure 5 Reinforcement of prefabricated grooved plate of the utility model Figure 1 ;
[0022] Figure 6 Reinforcement of prefabricated grooved plate of the utility model Figure 2 ;
[0023] Figure 7For this utility model Figure 2 Plan structure diagram;
[0024] Figure 8 This is a structural diagram of the prefabricated grooved plate installation system of the utility model;
[0025] Fig. 9 It is a plan view of the prefabricated grooved plate installation system of the utility model.
[0026] In the figure:
[0027] 1-prefabricated grooved plate, 11-prefabricated layer, 12-rib beam, 13-cantilever ear, 141-plate bottom stress-bearing steel bar, 142-rib beam stirrups, 143-truss bar, 144-rib beam bottom stress-bearing steel bar, 145-hanging nail, 15-blocking part, 16-keyway,
[0028] 2- Precast columns, 3- Precast beams,
[0029] 41- top stress-bearing reinforcement of trough-type plate rib beam, 42- additional reinforcement of joint, 43- reinforcing reinforcement of joint, 44- tie reinforcement of joint, 45- longitudinal reinforcement of cast-in-place layer, 46- stress-bearing reinforcement of bottom of precast beam.
[0030] 5- Foam rubber layer. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] like Figure 1-7 As shown, a prefabricated trough-shaped plate comprises a prefabricated layer 11 in a rectangular structure, two sides of the prefabricated layer 11 are respectively provided with ribs 12 extending downward, and the remaining two sides of the prefabricated layer 11 and between the two ribs 12 are provided with blocking parts 15; the bottom edges of the two ribs 12 are provided with ears 13 folded outward (with the opposite side of the two corresponding ribs 12 as the outer side). The prefabricated layer 11, the ribs 12, the ears 13 and the blocking parts 15 together form the prefabricated trough-shaped plate 1.
[0033] The prefabricated layer 11 is provided with crisscross bottom stress-bearing steel bars 141, and the rib beam 12 is provided with rib beam stirrups 142, which are clamped on the corresponding transverse bars of the bottom stress-bearing steel bars 141 (the steel bars extending along the length direction of the prefabricated layer 11 are transverse bars, and the steel bars extending along the width direction of the prefabricated layer 11 are longitudinal bars); truss bars 143 are also embedded in the prefabricated layer 11, and the top parts of the truss bars 143 and the rib beam stirrups 142 are higher than the prefabricated layer 11.
[0034] Specifically, in this embodiment, the crisscrossed bottom stress-bearing steel bars 141 form a grid structure, and a plurality of rib stirrups 142 are used and are evenly distributed on the transverse bars at both ends of the bottom stress-bearing steel bars 141 .
[0035] Specifically in this embodiment, the prefabricated trough plate 1 is made by reverse molding, by tying the plate bottom stress-bearing steel bars 141, rib stirrups 142 and truss bars 143, placing the tied steel bars in a mold and pouring cement into a mold.
[0036] As a preferred embodiment, the rib beam stirrups 142 are arranged to be a "U"-shaped structure, and the two ends of the rib beam stirrups 142 are bent inwardly (with the side opposite to the two ends of the rib beam stirrups 142 as the inner side). The purpose of such design is that in the later construction, when pouring concrete on the prefabricated trough plate 1, the bent part of the top of the rib beam bottom stress-bearing steel bar 144 increases the effective bonding area in the horizontal plane between the concrete, thereby strengthening the bonding strength between the concrete and the prefabricated trough plate 1; secondly, it is convenient for the binding of steel bars.
[0037] Furthermore, the bottom of the rib beam stirrups 142 located on the same side is fixedly connected by the rib beam bottom stress-bearing steel bars 144, specifically by binding.
[0038] Preferably, both ends of the stress-bearing steel bars 144 at the bottom of the rib beam pass through the precast trough plate 1, in order to increase the connection strength between the precast trough plate 1 and the concrete after pouring the concrete during construction, and to improve the horizontal seismic strength of the precast trough plate 1.
[0039] In order to further enhance the connection strength between the prefabricated grooved plate 1 and the poured concrete, and to improve the horizontal and vertical seismic strength of the installation system of the prefabricated grooved plate 1, a keyway 16 is provided on the outer surface of the blocking portion 15. In this way, when pouring concrete on the outer side of the prefabricated grooved plate 1 during construction, a portion of the concrete flows into the keyway 16, and the solidified concrete forms a convex head that matches the keyway, thereby increasing the bonding area and improving the seismic strength.
[0040] Furthermore, hanging nails 145 are respectively provided at the four corners of the prefabricated layer 11 to facilitate demoulding and lifting of the prefabricated grooved plate 1.
[0041] like Figure 1-9 As shown, a prefabricated grooved plate installation system includes a plurality of prefabricated grooved plates 1, a plurality of prefabricated columns 2 and prefabricated beams 3 erected on the prefabricated columns 2; the prefabricated grooved plates 1 are erected on the prefabricated beams 3, and the corresponding ears 13 between two adjacent prefabricated grooved plates 1 are affixed to each other and sealed; the corresponding rib beam stirrups 142 between two adjacent prefabricated grooved plates 1 are fixedly connected by binding the grooved plate rib beam top stress-bearing steel bars 41 and the joint additional steel bars 42, and the grooved plate rib beam top stress-bearing steel bars 41 and the joint additional steel bars 42 are arranged perpendicularly and staggered to each other; the top of the truss bars 143 is provided with cast-in-place longitudinal bars 45.
[0042] In this embodiment, when pouring concrete in the space between the precast columns 3 between adjacent floors, precast beam bottom stress-bearing steel bars 46 are arranged between the two corresponding upper and lower precast columns 2, and the precast beam bottom stress-bearing steel bars 46 are overlapped or tied to the adjacent cast-in-place layer longitudinal bars 45.
[0043] Specifically, the top stress-bearing steel bars 41 of the grooved plate rib beam are located at the top of the rib beam stirrups 142 ; the additional seam reinforcements 42 are located below the top stress-bearing steel bars 41 of the grooved plate rib beam and attached to the top of the prefabricated layer 11 .
[0044] Furthermore, at least two joint reinforcement bars 43 are provided between two adjacent precast trough panels 1, and the corresponding joint reinforcement bars 43 at the top are tied and connected with the cast-in-place layer longitudinal bars 45, and the corresponding joint reinforcement bars 43 are connected by joint tie bars 44. The joint tie bars are used to enhance the connection strength between the two adjacent precast trough panels 1 after pouring concrete.
[0045] Preferably, the corresponding ears 13 between the two prefabricated grooved plates 1 are connected by foam seal, and the foam seal forms a foam layer 5 .
[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A prefabricated grooved plate, characterized in that: It comprises a prefabricated layer in a rectangular structure, wherein two sides of the prefabricated layer are respectively provided with rib beams extending downward, and the remaining two sides of the prefabricated layer and between the two rib beams are provided with blocking parts; the bottom edges of the two rib beams are provided with ears folded outwards; The prefabricated layer is provided with slab bottom stress-bearing steel bars, and the rib beams are provided with rib beam stirrups inside, which are hooped around the corresponding transverse bars of the slab bottom stress-bearing steel bars; truss bars are also embedded inside the prefabricated layer, and the top parts of the truss bars and rib beam stirrups are higher than the embedded layer.
2. A prefabricated grooved plate according to claim 1, characterized in that: The stress-bearing steel bars at the bottom of the slab are arranged in a staggered manner and present a grid-like structure.
3. The prefabricated grooved plate according to claim 1, characterized in that: The rib beam stirrups are arranged in a "U"-shaped structure, and both ends of the rib beam stirrups are bent inwards.
4. The prefabricated grooved plate according to claim 1, characterized in that: Both ends of the stress-bearing steel bars at the bottom of the rib beam pass through the prefabricated trough plates.
5. The prefabricated grooved plate according to claim 1, characterized in that: The outer surface of the blocking portion is provided with a keyway.
6. The prefabricated grooved plate according to claim 1, characterized in that: Hanging nails are also respectively arranged at the four corners of the prefabricated layer.
7. A prefabricated trough panel installation system comprising the prefabricated trough panel according to any one of claims 1 to 6, characterized in that: It includes a plurality of prefabricated trough plates, a plurality of prefabricated columns and prefabricated beams erected on the prefabricated columns; the prefabricated trough plates are erected on the prefabricated beams, and the corresponding ears between two adjacent prefabricated trough plates are fitted together and sealed; the corresponding rib beam stirrups between two adjacent prefabricated trough plates are fixedly connected by binding the top stress-bearing steel bars of the rib beams of the trough plates and the additional reinforcements at the joints, and the top stress-bearing steel bars of the rib beams of the trough plates and the additional reinforcements at the joints are arranged perpendicularly and staggered to each other; the top of the truss reinforcement is provided with cast-in-place longitudinal reinforcement.
8. A prefabricated grooved plate installation system according to claim 7, characterized in that: At least two joint reinforcement bars are arranged between two adjacent prefabricated grooved plates. The corresponding joint reinforcement bars at the top are tied and connected with the longitudinal reinforcement of the cast-in-place layer, and the corresponding joint reinforcement bars are connected with each other through joint tie bars.
9. A prefabricated grooved plate installation system according to claim 7, characterized in that: The corresponding ears between the two prefabricated grooved plates are sealed and connected by foam adhesive.