Novel superposed beam component structure
By adopting a new superimposed beam component structure in prefabricated buildings, and using technical means such as the mouth and steel bar connector, the problems of difficult reinforcement of superimposed beams and risk of slurry leakage are solved, and the effect of accelerating construction progress and improving structural strength is achieved.
Patent Information
- Application Number
- CN202421540300.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In prefabricated building construction, the overlapping beams need to be sealed with wooden molds at high and low spans, resulting in high difficulty in reinforcement, time-consuming and labor-intensive, unsatisfactory reinforcement effect, low formwork installation efficiency and risk of slurry leakage.
A new type of superimposed beam component structure is adopted, including prefabricated beams, first superimposed plates, second superimposed plates and cast-in-place layer. By setting up an opening on the prefabricated beams, and using reinforcement connectors, bending hook steel bars and connecting steel plates to cooperate with each other, up and down misaligned splicing is achieved and fixed by cast-in-place concrete.
There is no need to use wooden molds for sealing, which reduces labor investment, speeds up construction progress, avoids slurry leakage, and improves the overall strength of the overlapping beam component structure.
Smart Images
Figure CN222924159U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a novel composite beam component structure. Background Technique
[0002] During the construction process of prefabricated buildings, it is usually necessary to use wooden formwork to block at the high and low spans of the composite beam (the structure is as shown in the attached drawings of the specification). Figure 3 However, due to the small size of the formwork, it is difficult to reinforce, time-consuming and laborious, and the reinforcement effect is not ideal. The formwork installation efficiency is low, and there is a risk of slurry leakage. Content of the Utility Model
[0003] The purpose of the utility model is to provide a novel composite beam component structure to solve the problems put forward in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A novel composite beam component structure, including a precast beam, a first composite slab, a second composite slab and a cast-in-place layer. An external keyway part is arranged on one side of the upper part of the precast beam. One end of the first composite slab is lapped on the external keyway part. One end of the second composite slab is lapped on the precast beam. A cast-in-place layer is arranged between the first composite slab, the second composite slab and between the two. The cast-in-place layer is bonded and fixed to the first composite slab, the second composite slab and the precast beam. One end of the first composite slab is provided with first composite slab reserved steel bars. One end of the second composite slab is provided with second composite slab reserved steel bars. Steel bar connectors are installed at the ends of the first composite slab reserved steel bars and the second composite slab reserved steel bars. The first composite slab reserved steel bars are connected with first hooked steel bars through the steel bar connectors. The second composite slab reserved steel bars are connected with second hooked steel bars through the steel bar connectors. A connecting steel plate is arranged between the first hooked steel bars and the second hooked steel bars, and the first hooked steel bars and the second hooked steel bars are connected through the connecting steel plate.
[0006] As a further scheme of the utility model: The first composite slab and the second composite slab are spliced in a vertically offset manner in space.
[0007] As a further scheme of the utility model: A plurality of through holes are evenly arranged on the surface of the connecting steel plate. The first hooked steel bars and the second hooked steel bars both penetrate through the through holes and hook on different plate surfaces of the connecting steel plate.
[0008] As a further scheme of the utility model: The concrete material in the cast-in-place layer partially fills into the through holes.
[0009] As a further scheme of the utility model: The thickness of the external keyway part is 5 cm.
[0010] As a further solution of the present utility model: the overlapping lengths of the precast beam with the first and the second laminated slabs are both 1 cm.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. The present utility model adopts the keyway type of the laminated beam component, and the sectional deepening design technology designs the laminated beam at the lowered slab into a keyway shape. By setting a similar keyway deepening for the laminated beam, the upper end of the precast column is also deepened with a keyway. The keyway form does not require the use of wooden formwork for plugging, reducing labor input, accelerating the construction progress, and avoiding the problem of mortar leakage.
[0013] 2. The present utility model can connect the first and the second laminated slabs with upper and lower dislocation together through the cooperation of the steel bar connector, the first hooked steel bar, the second hooked steel bar and the connecting steel plate, and then fix the connecting part by cast-in-place concrete, which can improve the firmness of the connection between the first and the second laminated slabs and enhance the overall strength of the laminated beam component structure. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0015] Figure 2 For the present utility model Figure 1 It is a schematic diagram of the structure of the connecting steel plate in the present utility model.
[0016] Figure 3 It is a schematic diagram of the structure of the laminated beam component when using the conventional construction treatment method.
[0017] 1. Precast beam; 2. First laminated slab; 3. Second laminated slab; 4. Cast-in-place layer; 5. Formwork; 6. Keyway part; 7. Reserved steel bars of the first laminated slab; 8. Reserved steel bars of the second laminated slab; 9. Steel bar connector; 10. First hooked steel bar; 11. Second hooked steel bar; 12. Connecting steel plate; 13. Through hole; 14. Reinforcement cage of the precast beam. Detailed Embodiment
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figure 1, in the embodiment of the present utility model, a novel composite beam member structure includes a precast beam 1, a first composite slab 2, a second composite slab 3 and a cast-in-place layer 4. An upstand portion 6 is provided on one side of the upper part of the precast beam 1, and the thickness of the upstand portion 6 is 5 cm. One end of the first composite slab 2 is lapped on the upstand portion 6, and one end of the second composite slab 3 is lapped on the precast beam 1. The cast-in-place layer 4 is provided between the first composite slab 2, the second composite slab 3 and between them. The cast-in-place layer 4 is bonded and fixed to the first composite slab 2, the second composite slab 3 and the precast beam 1. The first composite slab 2 and the second composite slab 3 are spliced in a vertically offset manner in space. The lapping lengths of the precast beam 1 with the first composite slab 2 and the second composite slab 3 are both 1 cm. A precast beam steel reinforcement cage 14 is arranged in the precast beam 1.
[0020] Please refer to Figure 1-2 , a first composite slab reserved steel bar 7 is arranged at one end of the first composite slab 2, and a second composite slab reserved steel bar 8 is arranged at one end of the second composite slab 3. Steel bar connectors 9 are installed at the ends of the first composite slab reserved steel bar 7 and the second composite slab reserved steel bar 8. The first composite slab reserved steel bar 7 is connected with a first hook steel bar 10 through the steel bar connector 9, and the second composite slab reserved steel bar 8 is connected with a second hook steel bar 11 through the steel bar connector 9. A connecting steel plate 12 is arranged between the first hook steel bar 10 and the second hook steel bar 11, and the first hook steel bar 10 and the second hook steel bar 11 are connected through the connecting steel plate 12.
[0021] A plurality of through holes 13 are evenly formed on the surface of the connecting steel plate 12. The first hook steel bar 10 and the second hook steel bar 11 both penetrate through the through holes 13 and hook on different plate surfaces of the connecting steel plate 12. Part of the concrete material in the cast-in-place layer 4 fills into the through holes 13. The arrangement of the through holes 13 can not only facilitate the penetration of the first hook steel bar 10 and the second hook steel bar 11, but also the redundant through holes 13 can increase the contact area between the connecting steel plate 12 and the cast-in-place layer 4, making the installation of the connecting steel plate 12 in the cast-in-place layer 4 more firm.
[0022] The precast beam steel reinforcement cage 14, the second composite slab reserved steel bar 8 and the first composite slab reserved steel bar 7 are all steel bar structures well-known in building construction.
[0023] Please refer to Figure 3 , there is a certain gap between the precast beam 1 and the first composite slab 2 (upper composite slab) at the lowered slab position of traditional balconies, kitchens, corridors, etc. The construction method for the lowered slab is to use a formwork 5 to block the gap between the precast beam 1 and the first composite slab 2 first before pouring the upper cast-in-place layer 4. However, due to the small size of the formwork 5, the reinforcement is difficult, time-consuming and laborious, and the reinforcement effect is not ideal and the installation efficiency of the formwork 5 is low.
[0024] The working principle of the present utility model is:
[0025] In use, first place the precast beam 1 on the pre-lapped support, and then hoist the first composite slab 2 and the second composite slab 3 in sequence. One end of the first composite slab 2 is lapped on the rabbet portion 6, and one end of the second composite slab 3 is lapped on the precast beam 1. Then place the connecting steel plate 12 on the precast beam 1 inside the precast beam reinforcement cage 14. Pass the first hooked bar 10 and the second hooked bar 11 through the through holes 13 opened on the connecting steel plate 12 and connect them to the first composite slab reserved bar 7 and the second composite slab reserved bar 8 respectively through the steel bar connector 9. Then, formwork can be directly carried out on the first composite slab 2 and the second composite slab 3 and concrete with a certain thickness can be poured to form the cast-in-place layer 4.
[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A novel composite beam component structure, comprising a prefabricated beam (1), a first composite plate (2), a second composite plate (3) and a cast-in-place layer (4), characterized in that: A tongue-and-groove portion (6) is provided on one side of the upper portion of the precast beam (1); one end of the first composite plate (2) is overlapped on the tongue-and-groove portion (6); one end of the second composite plate (3) is overlapped on the precast beam (1); a cast-in-place layer (4) is provided on the first composite plate (2), the second composite plate (3) and between the two; the cast-in-place layer (4) is bonded and fixed to the first composite plate (2), the second composite plate (3) and the precast beam (1); one end of the first composite plate (2) is provided with a first composite plate reserved steel bar (7); one end of the second composite plate (3) is provided with a second composite plate reserved steel bar (8); The first composite plate reserved steel bar (7) and the second composite plate reserved steel bar (8) are both provided with steel bar connectors (9) at their ends; the first composite plate reserved steel bar (7) is connected to a first bent hook steel bar (10) via the steel bar connector (9); the second composite plate reserved steel bar (8) is connected to a second bent hook steel bar (11) via the steel bar connector (9); a connecting steel plate (12) is provided between the first bent hook steel bar (10) and the second bent hook steel bar (11); and the first bent hook steel bar (10) and the second bent hook steel bar (11) are connected via the connecting steel plate (12).
2. A novel composite beam member structure according to claim 1, characterized in that: The first superimposed plate (2) and the second superimposed plate (3) are spliced in an up-and-down staggered manner in space.
3. The novel composite beam member structure according to claim 1 is characterized in that: A plurality of through holes (13) are evenly formed on the surface of the connecting steel plate (12), and the first bent hook steel bar (10) and the second bent hook steel bar (11) both pass through the through holes (13) and are hooked on different plate surfaces of the connecting steel plate (12).
4. The novel composite beam member structure according to claim 1 is characterized in that: The concrete material in the cast-in-place layer (4) is partially filled into the through hole (13).
5. The novel composite beam member structure according to claim 1 is characterized in that: The thickness of the tongue and groove portion (6) is 5 cm.
6. The novel composite beam member structure according to claim 1 is characterized in that: The overlap lengths of the prefabricated beam (1) and the first composite plate (2) and the second composite plate (3) are all 1 cm.