CN115961726A - Prefabricated floor beam connecting structure and connecting method - Google Patents
Prefabricated floor beam connecting structure and connecting method Download PDFInfo
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- CN115961726A CN115961726A CN202211640983.6A CN202211640983A CN115961726A CN 115961726 A CN115961726 A CN 115961726A CN 202211640983 A CN202211640983 A CN 202211640983A CN 115961726 A CN115961726 A CN 115961726A
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Abstract
The invention discloses a prefabricated floor beam connecting structure and a connecting method, wherein a vertically-penetrating installation through hole is formed in the top of a floor slab body, two L-shaped connecting ribs are prefabricated in the prefabricated beam, the short edge ends of the two L-shaped connecting ribs are oppositely arranged, the long edge ends of the two L-shaped connecting ribs extend upwards, the two floor slab bodies are arranged above the prefabricated beam side by side and are respectively matched with the two long edge ends through the installation through hole, a grouting seam is formed between the end parts of the two floor slab bodies, and a connecting piece is positioned above the installation through hole and is used for connecting the two L-shaped connecting ribs. Through L type strengthening rib and installation through-hole cooperation, realize the on-the-spot quick installation of floor body and precast beam, combine together with the grout between the floor, construction speed is fast, and the on-the-spot wet work volume is little, has improved roof beam and precast floor connected node overall stability.
Description
Technical Field
The invention relates to the technical field of prefabricated floor beam connection, in particular to a prefabricated floor beam connection structure and a prefabricated floor beam connection method.
Background
The floor slab is an important component of the whole building structure, not only bears vertical load, but also can transmit horizontal load generated under the action of earthquake and wind load to the anti-side system. The traditional steel-cast-in-place concrete floor slab shows excellent mechanical properties, but a large number of workers are still required to carry out work such as on-site template manufacturing, reinforcement bar binding, concrete pouring and the like in the construction process, and the problems of complex construction, large workload, low construction efficiency and the like exist; in addition, with labor shortage, the labor cost required is greatly increased; large scale on-site wet operation causes environmental pollution.
The existing floor forms mainly comprise traditional truss rib floor bearing plates, detachable bottom die truss rib floor bearing plates, composite floor slabs of laminated slabs and the like, but the products are not mature residential building floor solutions through market verification. Traditional truss muscle floor carrier plate profiled sheet exposes, and the aesthetic property is poor, hinders the fitment, and user experience is poor, and consumer acceptance is very low in the house. The construction process of the detachable bottom die truss rib floor support plate is complex, the actual reusability of the bottom die is not high, and the cost is high.
The prefabricated floor slab can meet the engineering requirements of complete factory production and field assembly installation of components, can be used for carrying out a small amount of wet operation on the site, remarkably improves the construction efficiency, is more environment-friendly, and has remarkable economic benefit. However, due to the limitation of the floor size during transportation, a seam inevitably exists between adjacent precast floors. The physical connection joints between the fully prefabricated floors affect the shearing resistance, bending rigidity and bearing capacity in the floor surface, so that the integrity of the floor is obviously reduced.
Disclosure of Invention
The invention provides a prefabricated floor beam connecting structure and a connecting method, aiming at solving the technical problems in the background technology.
The invention provides a prefabricated floor beam connecting structure, which comprises: the two floor slab bodies, the precast beams and the connecting pieces;
floor body top has the vertical installation through-hole that runs through, and it has two L type splice bar to prefabricate in the precast beam, and two L type splice bar minor face end sets up relatively and long limit end upwards stretches out, and two floor bodies are arranged side by side in the precast beam top and are passed through respectively installation through-hole and two the cooperation of long limit end forms grout seam between two floor body end portions, and the connecting piece is located the installation through-hole top is used for connecting two L type splice bar.
Preferably the floor slab body top has a rebate extending from the end to the middle, the mounting through-holes being located in the rebate, the rebates of the two floor slab bodies together forming a receiving groove for receiving a connector.
Preferably, the connecting piece adopts flat steel, and the holding tank is matched with the flat steel in shape.
Preferably, the floor slab body is provided with a plurality of notches which are distributed along the end part of the floor slab body in sequence, and each notch is internally provided with an installation through hole; and the precast beam is provided with a plurality of L-shaped connecting ribs corresponding to the mounting through holes.
Preferably, a sleeve is arranged in the mounting through hole, the L-shaped connecting rib penetrates through the sleeve, and a grouting gap is formed between the L-shaped connecting rib and the sleeve.
Preferably, the outer wall of the L-shaped connecting rib is provided with threads, and the connecting piece is connected with the L-shaped connecting rib through a nut.
According to the prefabricated floor beam connecting structure, the top of a floor slab body is provided with a vertically-penetrating installation through hole, two L-shaped connecting ribs are prefabricated in the prefabricated beam, the short edge ends of the two L-shaped connecting ribs are arranged oppositely, the long edge ends of the two L-shaped connecting ribs extend upwards, the two floor slab bodies are arranged above the prefabricated beam side by side and are matched with the two long edge ends through the installation through hole respectively, a grouting seam is formed between the end parts of the two floor slab bodies, and a connecting piece is positioned above the installation through hole and is used for connecting the two L-shaped connecting ribs. Through the cooperation of the L-shaped reinforcing ribs and the mounting through holes, the floor slab body and the prefabricated beam are quickly mounted on site, and are combined with grouting between floors, so that the construction speed is high, the site wet workload is small, and the overall stability of the beam and prefabricated floor slab connection joint is improved.
The invention also provides a connecting method of the prefabricated floor beam connecting structure, which comprises the following steps:
s1, placing two floor slab bodies on the top of a precast beam, enabling installation through holes of the floor slab bodies to be matched with L-shaped connecting ribs, and forming a grouting joint between the two floor slab bodies;
s2, grouting into the grouting joint;
s3, placing the connecting piece on the mounting through hole and connecting the two L-shaped connecting ribs through the connecting piece.
Preferably, S2 further comprises grouting into the grouting gap between the L-shaped connecting rib and the sleeve.
Preferably, in S3, the connecting piece is placed in the accommodating groove, and the connecting piece is connected with the two L-shaped connecting ribs through nuts respectively.
Preferably, the method further comprises the following steps:
and S4, grouting into the accommodating groove.
According to the connecting method of the prefabricated floor beam connecting structure, the connecting mode of the connecting structure is optimized, and the overall stability of the connecting node is further ensured.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a prefabricated floor beam coupling structure according to the present invention.
Fig. 2 is a schematic structural view of a floor body in an embodiment of a prefabricated floor beam connecting structure according to the present invention.
Fig. 3 is a schematic structural view of a precast beam in an embodiment of a precast floor beam coupling structure according to the present invention.
Fig. 4 is a schematic cross-sectional view of an embodiment of a prefabricated floor beam connection structure according to the present invention.
Fig. 5 is a schematic top view of one embodiment of a prefabricated floor beam connecting structure according to the present invention.
Detailed Description
As shown in fig. 1 to 5, fig. 1 is a schematic structural view of an embodiment of a prefabricated floor slab beam connection structure according to the present invention, fig. 2 is a schematic structural view of a floor slab body in an embodiment of a prefabricated floor slab beam connection structure according to the present invention, fig. 3 is a schematic structural view of a prefabricated beam in an embodiment of a prefabricated floor slab beam connection structure according to the present invention, fig. 4 is a schematic sectional structural view of an embodiment of a prefabricated floor slab beam connection structure according to the present invention, and fig. 5 is a schematic top structural view of an embodiment of a prefabricated floor slab beam connection structure according to the present invention.
Referring to fig. 1 to 3, the present invention provides a prefabricated floor beam coupling structure, including: the two floor slabs comprise two floor slab bodies 1, precast beams 2 and connecting pieces 5;
1 top of floor body has the vertical installation through-hole that runs through, and prefabricated two L type splice bar 4 that have in precast beam 2, two 4 minor face of L type splice bar end relative settings and long limit end upwards stretch out, and two floor bodies 1 are arranged side by side in precast beam 2 top and are passed through respectively installation through-hole and two the cooperation of long limit end forms grout seam 6 between 1 tip of two floor bodies, and connecting piece 5 is located the installation through-hole top is used for connecting two L type splice bar 4.
Referring to fig. 1 and 4, the present embodiment also proposes a method of connecting the above-described prefabricated floor beam connecting structure, comprising the steps of:
s1, placing two floor slab bodies 1 on the top of a precast beam 2, enabling installation through holes of the floor slab bodies 1 to be matched with L-shaped connecting ribs 4, and forming a grouting joint 6 between the two floor slab bodies 1;
s2, grouting into the grouting joints 6;
s3, placing the connecting piece 5 on the mounting through hole and connecting the two L-shaped connecting ribs 4 through the connecting piece 5.
In this embodiment, the prefabricated floor beam connection structure that provides, floor body top have the installation through-hole of vertical run-through, and it has two L type splice bars to prefabricate in the precast beam, and two L type splice bar minor face ends set up relatively and long limit end upwards stretches out, and two floor bodies are arranged side by side in the precast beam top and are passed through respectively installation through-hole and two the cooperation of long limit end forms grout seam between two floor body end, and the connecting piece is located installation through-hole top is used for connecting two L type splice bars. Through L type strengthening rib and installation through-hole cooperation, realize the on-the-spot quick installation of floor body and precast beam, combine together with the grout between the floor, construction speed is fast, and the on-the-spot wet work volume is little, has improved roof beam and precast floor connected node overall stability. The connection method of the prefabricated floor beam connection structure optimizes the connection mode of the connection structure, and further ensures the overall stability of the connection node.
In the matching mode of the connecting ribs and the connecting pieces, the outer wall of the L-shaped connecting rib 4 is provided with threads, and the connecting piece 5 is connected with the L-shaped connecting rib 4 through a nut. In actual processing, the L-shaped connecting ribs can be formed by bending bolts. Through the L-shaped design of the connecting ribs, the two floor slabs are pulled towards the middle, so that the bearing capacity of the floor slabs is enhanced.
In the specific embodiment, the top of the floor slab body 1 is provided with a notch 7 extending from the end part to the middle part, the mounting through hole is positioned in the notch 7, and the notches 7 of the two floor slab bodies 1 jointly form a containing groove for containing the connecting piece 5. The holding tank provides accommodation space for the connecting piece installation.
During actual design, a plurality of notches 7 are sequentially distributed along the end part of the floor slab body 1 on the floor slab body 1, and each notch 7 is internally provided with a mounting through hole; and a plurality of L-shaped connecting ribs 4 corresponding to the mounting through holes are arranged on the precast beam 2.
With reference to fig. 5, in a further embodiment the connecting piece 5 is made of flat steel, and the receiving groove is form-fit with the flat steel. In a specific connection mode, in S3, the connecting piece 5 is placed in the accommodating groove, and the connecting piece 5 is connected with the two L-shaped connecting ribs 4 through nuts respectively. The flat steel shape and the accommodation groove cooperation protect the flat steel from the circumference. In order to improve the connection stability of the connection node, grouting may be finally performed into the receiving groove.
In other specific embodiments, the sleeve 3 is arranged in the mounting through hole, and the L-shaped connecting rib 4 penetrates through the sleeve 3 to form a grouting gap therebetween. Accordingly, when connecting, grouting may be performed into the grouting gap between the L-shaped bead 4 and the sleeve 3 in S2. The design of the sleeve reinforces the installation through hole on one hand, and on the other hand, grouting is performed between the sleeve and the connecting rib, so that the combination reliability between the floor slab and the precast beam is improved.
In practical design, can all set up the installation through-hole at floor body both ends, two adjacent floor bodies pass through the precast beam and connect, realize connecting gradually of a plurality of floor bodies.
The connecting structure of the embodiment has the advantages of low cost, simple structure, matching with the connecting method, high construction speed, small field wet operation amount and improvement of the integral stability of the connecting joint of the beam and the precast floor slab.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211640983.6A CN115961726A (en) | 2022-12-20 | 2022-12-20 | Prefabricated floor beam connecting structure and connecting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211640983.6A CN115961726A (en) | 2022-12-20 | 2022-12-20 | Prefabricated floor beam connecting structure and connecting method |
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| CN115961726A true CN115961726A (en) | 2023-04-14 |
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| CN202211640983.6A Pending CN115961726A (en) | 2022-12-20 | 2022-12-20 | Prefabricated floor beam connecting structure and connecting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119266435A (en) * | 2024-11-18 | 2025-01-07 | 湖北神州建材有限责任公司 | An energy-saving and lightweight steel structure prefabricated concrete floor beam connection structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190257081A1 (en) * | 2018-02-21 | 2019-08-22 | Scott Edward Heatly | Precast modular structural building system and method |
| CN111287373A (en) * | 2020-02-23 | 2020-06-16 | 西安理工大学 | Connecting structure and connecting method for prefabricated composite slab and steel beam |
| CN112031230A (en) * | 2020-09-04 | 2020-12-04 | 建研科技股份有限公司 | A shear key connection structure at the interface between a prefabricated reinforced concrete floor and a prefabricated concrete beam |
| CN214461627U (en) * | 2020-12-23 | 2021-10-22 | 湖北正浩建设集团有限公司 | Connecting structure of prefabricated floor slab and steel beam |
| CN215858477U (en) * | 2021-09-29 | 2022-02-18 | 广东博意建筑设计院有限公司 | Prefabricated floor and connection structure of prefabricated floor and support |
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2022
- 2022-12-20 CN CN202211640983.6A patent/CN115961726A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190257081A1 (en) * | 2018-02-21 | 2019-08-22 | Scott Edward Heatly | Precast modular structural building system and method |
| CN111287373A (en) * | 2020-02-23 | 2020-06-16 | 西安理工大学 | Connecting structure and connecting method for prefabricated composite slab and steel beam |
| CN112031230A (en) * | 2020-09-04 | 2020-12-04 | 建研科技股份有限公司 | A shear key connection structure at the interface between a prefabricated reinforced concrete floor and a prefabricated concrete beam |
| CN214461627U (en) * | 2020-12-23 | 2021-10-22 | 湖北正浩建设集团有限公司 | Connecting structure of prefabricated floor slab and steel beam |
| CN215858477U (en) * | 2021-09-29 | 2022-02-18 | 广东博意建筑设计院有限公司 | Prefabricated floor and connection structure of prefabricated floor and support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119266435A (en) * | 2024-11-18 | 2025-01-07 | 湖北神州建材有限责任公司 | An energy-saving and lightweight steel structure prefabricated concrete floor beam connection structure |
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Application publication date: 20230414 |