CN111997189A - Fabricated concrete slab structure and dry-type connecting method thereof - Google Patents
Fabricated concrete slab structure and dry-type connecting method thereof Download PDFInfo
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- CN111997189A CN111997189A CN202010975374.0A CN202010975374A CN111997189A CN 111997189 A CN111997189 A CN 111997189A CN 202010975374 A CN202010975374 A CN 202010975374A CN 111997189 A CN111997189 A CN 111997189A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
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Abstract
The invention provides an assembled concrete plate structure and a dry-type connecting method thereof.A lower notch of a plate end, a left plate reserved steel bar, a reserved bolt channel and a left U-shaped bolt channel are arranged at the end of a left side plate; the right side plate end is provided with a plate end upper gap, and a right plate is reserved with a steel bar and a right U-shaped bolt channel; the left connecting piece is formed by welding a left steel bar sleeve, a steel bar ring and a left steel bar; the right connecting piece is formed by welding a right steel bar sleeve, a bolt and a right steel bar; and (3) respectively connecting the left side connecting piece and the right side connecting piece with the left plate reserved steel bar and the right plate reserved steel bar, overlapping the left side plate on the notch of the right side plate, enabling the bolt of the right side connecting piece to penetrate through the steel bar ring of the left side connecting piece and the reserved bolt channel and be fastened by a nut, and finally connecting the bolt with a U-shaped bolt. The invention has the advantages that the connection mode adopts dry operation construction, thereby saving energy, protecting environment and simplifying construction; the connection is reliable, the integrity is good, and the rigidity is obviously improved; the industrialization efficiency of the device is obviously improved, and the generalization and standardization can be realized.
Description
Technical Field
The invention belongs to the technical field of assembly type buildings, and particularly relates to an assembly type concrete slab structure and a dry type connecting method thereof.
Background
The prefabricated concrete building is a building with a concrete structure designed and built in a field assembly mode, wherein the prefabricated concrete components are mainly produced in a factory. The assembly method of the component generally comprises a post-cast integral structure, a full-assembly structure connection and the like, and the steel bar connection can adopt methods of sleeve grouting connection, steel bar grout anchor lap joint connection and the like. In the 80 s of the 20 th century, the prefabricated large-plate house popular in China has many hidden dangers and defects influencing the safety and normal use of the structure due to poor structural integrity, leakage, floor slab cracks and the like, and is gradually replaced by a cast-in-place concrete structure. However, with the application of the currently emerging prefabricated concrete structure, especially with the introduction of a plurality of foreign advanced technologies in recent years, a new technology for constructing a native prefabricated concrete structure is gradually formed.
The design and construction technology of the fabricated concrete building is researched from the fifties and sixties of the 20 th century in China, a series of fabricated concrete building systems are formed, and typical building systems comprise a fabricated single-layer industrial factory building system, a fabricated multi-layer frame building system, a fabricated large-plate building system and the like. By the 20 th century and the 80 th century, the application of the fabricated concrete building reaches the full prosperity, and a design, manufacture, construction and installation integrated fabricated concrete industrialized building mode is formed in many places in the country. The fabricated concrete building and the masonry building adopting the prefabricated hollow floor slab become two main building systems, and the application popularization rate reaches more than 70%. Because the function and physical performance of the fabricated building have many limitations and defects, the level of the design and the development of the construction technology of the fabricated concrete building in China cannot keep up with the change of the social demand and the development of the construction technology, and the fabricated concrete building is gradually replaced by a full cast-in-place concrete building system by the middle of the 90 s of the 20 th century. At present, except that the application of an assembly type single-layer industrial factory building system is wider, the engineering application of other prefabricated assembly type building systems is very little. The shear integrity of the prefabricated structure and the specialized research of design construction management are not enough, so that the poor technical integrity is the root cause of the long-term stagnation state of the prefabricated structure.
Disclosure of Invention
1. The purpose of the invention is as follows:
the invention aims to solve the problems of complex site construction, poor integrity and the like of the existing node, and provides a dry type connection method which is simple in construction and high in shear strength. The method has the advantages of reliable connection, good integrity, excellent shear resistance, obviously improved rigidity, obviously improved industrialization efficiency, and realization of generalization and standardization.
2. The technical scheme adopted by the invention is as follows:
the invention relates to an assembled concrete plate structure and a dry-type connecting method thereof, which are characterized in that: the left side precast concrete plate, the right side precast concrete plate, a left side connecting piece, a right side connecting piece, a steel plate, a nut and a U-shaped bolt are included; the left precast concrete plate and the right precast concrete plate are fixedly connected through a left connecting piece, a right connecting piece, a steel plate, a nut and a U-shaped bolt; the left connecting piece is positioned on the upper part of the lower gap of the plate end of the left precast concrete plate and is fixedly connected with the reserved steel bar of the left plate through a left steel bar sleeve; the right connecting piece is positioned at the lower part of the notch at the plate end of the right precast concrete plate and is fixedly connected with the reserved steel bar of the right plate through a right steel bar sleeve; the steel plate is positioned at the upper end of the connecting part of the left precast concrete plate and the right precast concrete plate, and the central part of the steel plate is provided with a bolt hole which is connected with a bolt in series and fixedly connected with a nut; the U-shaped bolts are positioned at the lower ends of the connecting parts of the left precast concrete plate and the right precast concrete plate and are connected with the left precast concrete plate and the right precast concrete plate through the left U-shaped bolt channel and the right U-shaped bolt channel;
further, the left precast concrete slab mainly comprises a slab body of the left precast concrete slab, a slab-end lower notch, a left slab reserved steel bar, a reserved bolt channel and a left U-shaped bolt channel; the lower gap of the plate end is matched with the plate end of the precast concrete plate on the right side, and the position of the reserved bolt channel corresponds to the bolt of the right connecting piece;
further, the right precast concrete plate mainly comprises a plate body of the right precast concrete plate, a gap at the plate end, a reserved steel bar of the right plate and a right U-shaped bolt channel; the upper gap of the plate end is matched with the plate end of the precast concrete plate on the left side;
furthermore, the left connecting piece mainly comprises a left steel bar sleeve, a steel bar ring and a left steel bar; the position of the steel bar ring corresponds to the bolt of the right connector;
further, the right connecting piece mainly comprises a right steel bar sleeve, a bolt and a right steel bar; the position of the bolt corresponds to the reinforcing steel ring of the left connector;
further, the mounting step is:
(a) fixedly connecting the left connecting piece and the right connecting piece with the left plate reserved steel bar and the right plate reserved steel bar respectively through a left steel bar sleeve and a right steel bar sleeve;
(b) the lower gap of the plate end is connected with the upper gap of the plate end, and the bolt is strung through the reinforcing steel ring and the reserved bolt channel;
(c) the upper ends of the connecting parts of the left precast concrete plate and the right precast concrete plate are fixedly connected with bolts through steel plates and nuts; the lower end is fixedly connected with the left U-shaped bolt channel and the right U-shaped bolt channel through U-shaped bolts.
The invention has the beneficial effects that:
the invention has the advantages that the connection mode adopts dry operation construction, the connecting piece is simple, the simplified construction connection is reliable, the integrity is good, the excellent shearing resistance is realized, the industrialization efficiency is obviously improved, and the generalization and standardization can be realized.
Drawings
FIG. 1 is a schematic view of the overall structure of a plate-to-plate dry joint;
fig. 2 is a structural schematic view of a left precast concrete panel;
fig. 3 is a structural schematic view of a right precast concrete panel;
FIG. 4 is a schematic view of the left side connector;
FIG. 5 is a schematic view of the right side connector;
FIG. 6 is a schematic structural view of a steel plate;
fig. 7 is a structural view of the reinforcing bar connecting node.
In the figure, 1 is a left precast concrete slab; 2, prefabricating a concrete slab on the right side; 3 is a left connecting piece; 4 is a right connecting piece; 5 is a steel plate; 6 is a nut; 7 is a U-shaped bolt; 1-1 is a slab body of a left precast concrete slab; 1-2 is a lower notch of the plate end; 1-3, reserving reinforcing steel bars for the left plate; 1-4 is a reserved bolt channel; 1-5 are left U-shaped bolt channels; 2-1 is a slab body of a precast concrete slab on the right side; 2-2 is a notch on the plate end; 2-3 reserving steel bars for the right plate; 2-4 is a right U-shaped bolt channel; 3-1 is a left steel bar sleeve; 3-2 is a reinforcing steel bar ring; 3-3 is a left steel bar; 4-1 is a right steel bar sleeve; 4-2 is a bolt; 4-3 is a right reinforcing steel bar; 5-1 is a bolt hole.
Detailed Description
In order to further illustrate the present invention, the following detailed description of the present invention is given with reference to the accompanying drawings and examples, which should not be construed as limiting the scope of the present invention.
The assembled concrete slab structure and the dry-type connection method thereof are shown in fig. 1 to 7. The fabricated concrete slab structure comprises a left precast concrete slab (1), a right precast concrete slab (2), a left connecting piece (3), a right connecting piece (4), a steel plate (5), a nut (6) and a U-shaped bolt (7); the left precast concrete plate (1) and the right precast concrete plate (2) are fixedly connected through a left connecting piece (3), a right connecting piece (4), a steel plate (5), a nut (6) and a U-shaped bolt (7); the left connecting piece (3) is positioned at the upper part of a lower gap (1-2) at the plate end of the left precast concrete plate (1) and is fixedly connected with a left plate reserved steel bar (1-3) through a left steel bar sleeve (3-1); the right connecting piece (4) is positioned at the lower part of the notch (2-2) at the plate end of the right precast concrete plate (2) and is fixedly connected with the reserved steel bar (2-3) of the right plate through a right steel bar sleeve (4-1); the steel plate (5) is positioned at the upper end of the connecting part of the left precast concrete plate (1) and the right precast concrete plate (2), the central part of the steel plate is provided with a bolt hole (5-1), and the steel plate is connected with a nut (6) in a mutually fixed manner by passing through a bolt (4-2); the U-shaped bolts (7) are positioned at the lower ends of the connecting parts of the left precast concrete plate (1) and the right precast concrete plate (2) and are connected with each other through the left U-shaped bolt channel (1-5) and the right U-shaped bolt channel.
The left precast concrete plate (1) mainly comprises a left precast concrete plate body (1-1), a plate end lower notch (1-2), a left plate reserved steel bar (1-3), a reserved bolt channel (1-4) and a left U-shaped bolt channel (1-5); the lower gap (1-2) of the plate end is matched with the plate end of the right precast concrete plate (2), and the position of the reserved bolt channel (1-4) corresponds to the bolt (4-2) of the right connecting piece.
The right precast concrete plate (2) mainly comprises a plate body (2-1) of the right precast concrete plate, a notch (2-2) at the plate end, a reserved steel bar (2-3) of the right plate and a right U-shaped bolt channel (2-4); the upper gap (2-2) of the plate end is matched with the plate end of the left precast concrete plate (1).
The left connecting piece (3) mainly comprises a left steel bar sleeve (3-1), a steel bar ring (3-2) and a left steel bar (3-3); the position of the reinforcing steel bar ring (3-2) corresponds to the bolt (4-2) of the right connector (4).
The right connecting piece (4) mainly comprises a right steel bar sleeve (4-1), a bolt (4-2) and a right steel bar (4-3); the position of the bolt (4-2) corresponds to the position of the reinforcing ring (3-2) of the left connector.
The installation steps are as follows:
(a) fixedly connecting the left connecting piece (3) and the right connecting piece (4) with the left plate reserved steel bar (1-3) and the right plate reserved steel bar (2-3) respectively through a left steel bar sleeve (3-1) and a right steel bar sleeve (4-1);
(b) the plate end lower gap (1-2) is connected with the plate end upper gap (2-2), and the bolt (4-2) is strung through the reinforcing steel bar ring (3-2) and the reserved bolt channel (1-4);
(c) the upper ends of the connecting parts of the left precast concrete plate (1) and the right precast concrete plate (2) are fixedly connected with bolts (4-2) through steel plates (5) and nuts (6); the lower end is fixedly connected with the left U-shaped bolt channel (1-5) and the right U-shaped bolt channel (2-4) through a U-shaped bolt (7).
Claims (6)
1. An assembled concrete plate structure and a dry-type connecting method thereof are characterized in that: the concrete slab comprises a left precast concrete slab (1), a right precast concrete slab (2), a left connecting piece (3), a right connecting piece (4), a steel plate (5), a nut (6) and a U-shaped bolt (7); the left precast concrete plate (1) and the right precast concrete plate (2) are fixedly connected through a left connecting piece (3), a right connecting piece (4), a steel plate (5), a nut (6) and a U-shaped bolt (7); the left connecting piece (3) is positioned at the upper part of a lower gap (1-2) at the plate end of the left precast concrete plate (1) and is fixedly connected with a left plate reserved steel bar (1-3) through a left steel bar sleeve (3-1); the right connecting piece (4) is positioned at the lower part of the notch (2-2) at the plate end of the right precast concrete plate (2) and is fixedly connected with the reserved steel bar (2-3) of the right plate through a right steel bar sleeve (4-1); the steel plate (5) is positioned at the upper end of the connecting part of the left precast concrete plate (1) and the right precast concrete plate (2), the central part of the steel plate is provided with a bolt hole (5-1), and the steel plate is connected with a nut (6) in a mutually fixed manner by passing through a bolt (4-2); the U-shaped bolts (7) are positioned at the lower ends of the connecting parts of the left precast concrete plate (1) and the right precast concrete plate (2) and are connected with each other through the left U-shaped bolt channel (1-5) and the right U-shaped bolt channel.
2. A fabricated concrete panel structure and its dry joining method as claimed in claim 1, wherein: the left precast concrete plate (1) mainly comprises a left precast concrete plate body (1-1), a plate end lower notch (1-2), a left plate reserved steel bar (1-3), a reserved bolt channel (1-4) and a left U-shaped bolt channel (1-5); the lower gap (1-2) of the plate end is matched with the plate end of the right precast concrete plate (2), and the position of the reserved bolt channel (1-4) corresponds to the bolt (4-2) of the right connecting piece.
3. A fabricated concrete panel structure and its dry joining method as claimed in claim 1, wherein: the right precast concrete plate (2) mainly comprises a plate body (2-1) of the right precast concrete plate, an upper notch (2-2) at the plate end, a reserved steel bar (2-3) of the right plate and a right U-shaped bolt channel (2-4); the upper gap (2-2) of the plate end is matched with the plate end of the left precast concrete plate (1).
4. A fabricated concrete panel structure and its dry joining method as claimed in claim 1, wherein: the left connecting piece (3) mainly comprises a left steel bar sleeve (3-1), a steel bar ring (3-2) and a left steel bar (3-3); the position of the reinforcing steel bar ring (3-2) corresponds to the bolt (4-2) of the right connector (4).
5. A fabricated concrete panel structure and its dry joining method as claimed in claim 1, wherein: the right connecting piece (4) mainly comprises a right steel bar sleeve (4-1), a bolt (4-2) and a right steel bar (4-3); the position of the bolt (4-2) corresponds to the position of the reinforcing ring (3-2) of the left connector.
6. A method of dry-installing an assembled concrete panel structure according to claim 1, characterised in that said installation step is:
(a) fixedly connecting the left connecting piece (3) and the right connecting piece (4) with the left plate reserved steel bar (1-3) and the right plate reserved steel bar (2-3) respectively through a left steel bar sleeve (3-1) and a right steel bar sleeve (4-1);
(b) the plate end lower gap (1-2) is connected with the plate end upper gap (2-2), and the bolt (4-2) is strung through the reinforcing steel bar ring (3-2) and the reserved bolt channel (1-4);
(c) the upper ends of the connecting parts of the left precast concrete plate (1) and the right precast concrete plate (2) are fixedly connected with bolts (4-2) through steel plates (5) and nuts (6); the lower end is fixedly connected with the left U-shaped bolt channel (1-5) and the right U-shaped bolt channel (2-4) through a U-shaped bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975374.0A CN111997189A (en) | 2020-09-16 | 2020-09-16 | Fabricated concrete slab structure and dry-type connecting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975374.0A CN111997189A (en) | 2020-09-16 | 2020-09-16 | Fabricated concrete slab structure and dry-type connecting method thereof |
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| CN111997189A true CN111997189A (en) | 2020-11-27 |
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| CN202010975374.0A Pending CN111997189A (en) | 2020-09-16 | 2020-09-16 | Fabricated concrete slab structure and dry-type connecting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479027A (en) * | 2020-12-11 | 2021-03-12 | 中国十九冶集团有限公司 | Gantry crane prefabricated foundation and installation method thereof |
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2020
- 2020-09-16 CN CN202010975374.0A patent/CN111997189A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479027A (en) * | 2020-12-11 | 2021-03-12 | 中国十九冶集团有限公司 | Gantry crane prefabricated foundation and installation method thereof |
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