CN212801943U - Assembled concrete primary and secondary beam structure and dry-type connecting joint thereof - Google Patents
Assembled concrete primary and secondary beam structure and dry-type connecting joint thereof Download PDFInfo
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- CN212801943U CN212801943U CN202022034178.1U CN202022034178U CN212801943U CN 212801943 U CN212801943 U CN 212801943U CN 202022034178 U CN202022034178 U CN 202022034178U CN 212801943 U CN212801943 U CN 212801943U
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Abstract
The utility model provides an assembled concrete primary and secondary beam structure and a dry type connecting node thereof, wherein an extension beam with a notch extends out of one side of a precast concrete girder, a reinforcing steel bar channel is reserved in the girder, and an embedded part formed by welding steel plates and bolts is embedded below the notch of the extension beam; the prefabricated concrete secondary beam is provided with a secondary beam end gap from top to bottom, a bolt channel is reserved at the connecting end of the secondary beam, and a reinforcing steel bar is reserved at the beam end of the secondary beam; the beam end of the secondary beam is lapped on the notch of the outward extending beam, the bolt of the embedded part penetrates through the bolt channel of the beam end, a steel plate with a bolt through hole is arranged on the beam end, and then the steel plate is fastened by a nut; the connecting piece of the main beam and the secondary beam is formed by welding steel plates and steel bars, and the steel bars penetrate through the steel bar channel of the main beam and then are connected with the reserved steel bars at the beam end through steel bar sleeves. The utility model 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 utility model belongs to the technical field of the assembly type structure, especially, relate to an assembly type concrete primary and secondary beam structure and dry-type connected node 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 joints of the components generally have 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 seismic 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.
SUMMERY OF THE UTILITY MODEL
1. Utility model purpose:
the utility model discloses a solve the site operation complicacy that current node exists, the relatively poor scheduling problem of wholeness provides a dry-type connected node that the construction is simple, shear strength is high. The node is reliable in connection, good in integrity, excellent in shearing resistance, remarkably improved in rigidity, and capable of remarkably improving the industrialization efficiency and realizing generalization and standardization.
2. The utility model adopts the technical scheme as follows:
the utility model relates to an assembled concrete primary and secondary beam structure and a dry type connecting node thereof, which comprises a precast concrete main beam, a precast concrete secondary beam, a connecting piece and a steel plate; an overhanging beam with a notch and the length of not less than 500mm extends out of one side of the precast concrete main beam, a reinforcing steel bar channel is reserved in the precast concrete main beam, is positioned at the intersection of the beam body and the overhanging beam, has the same length direction as the overhanging beam, and penetrates through the beam body, and an embedded part formed by welding an embedded part steel plate and an embedded part bolt is embedded below the notch of the overhanging beam; the precast concrete secondary beam end is lapped on the notch of the overhanging beam, the embedded part bolt passes through the bolt channel of the secondary beam end, and the steel bar at the upper part of the connecting part and the steel bar at the lower part of the connecting part pass through the steel bar channel; the precast concrete secondary beam is provided with a secondary beam end gap, the secondary beam end is encrypted through stirrups, a bolt channel and transverse reserved steel bars are reserved at the connecting end, an embedded part bolt penetrates through the reserved bolt channel at the secondary beam end, the reserved steel bars at the secondary beam end and the steel bars at the upper part of the connecting part are connected together through steel bar sleeves, and the steel bar sleeves are connected with the steel bars through the secondary beam end gap; the connecting piece is formed by welding a connecting piece steel plate, a connecting piece upper portion steel bar and a connecting piece lower portion steel bar, wherein the connecting piece upper portion steel bar and the connecting piece lower portion steel bar are located on one side of the connecting piece steel plate and are perpendicular to the connecting piece steel plate.
Furthermore, the precast concrete girder mainly comprises a precast concrete girder body overhanging beam, a notch, an embedded part, a steel bar channel, a girder stirrup, a girder stressing rib and an overhanging beam stressing rib; the size of the notch is the same as that of the end of the precast concrete secondary beam, the position of the bolt of the embedded part corresponds to that of the bolt channel, and the position of the steel bar channel corresponds to the steel bar at the upper part of the connecting part and the steel bar at the lower part of the connecting part.
Furthermore, the precast concrete secondary beam mainly comprises a precast concrete secondary beam body, a secondary beam end gap, a secondary beam end reserved steel bar, a bolt channel and a secondary beam stirrup; the reserved steel bar position of the secondary beam end corresponds to the steel bar channel.
Furthermore, the connecting piece mainly comprises a connecting piece steel plate, a connecting piece upper reinforcing steel bar and a connecting piece lower reinforcing steel bar; the length of the upper reinforcing steel bar of the connecting piece corresponds to the width of the main beam, and the length of the lower reinforcing steel bar of the connecting piece corresponds to the width of the overhanging beam.
Further, the mounting step is:
(a) the beam end of the precast concrete secondary beam is hoisted and lapped on the notch of the overhanging beam, an embedded part bolt passes through a bolt channel corresponding to the beam end of the secondary beam, a steel plate is arranged on the beam end, and the embedded part bolt passes through a corresponding bolt through hole and is finally fastened by a nut;
(b) and the upper reinforcing steel bars of the connecting pieces respectively penetrate through the reinforcing steel bar channels corresponding to the concrete main beams, and the upper reinforcing steel bars of the connecting pieces, the lower reinforcing steel bars of the connecting pieces and the reserved reinforcing steel bars of the secondary beam ends are connected together by using reinforcing steel bar sleeves at the gaps of the secondary beam ends.
The utility model has the advantages that:
the utility model discloses an effect and advantage are connected the mode and adopt dry operation construction, and the connecting piece is simple, simplifies the construction and connects reliably, and the wholeness is good, has superior shear resistance, is showing to promote its industrialization efficiency to can realize universalization, it is standardized.
Drawings
FIG. 1 is a three-dimensional schematic diagram of a dry connection of a primary beam and a secondary beam;
FIG. 2 is a three-dimensional schematic view of a precast concrete main beam structure;
FIG. 3 is a three-dimensional schematic diagram of a precast concrete secondary beam structure;
FIG. 4 is a three-dimensional schematic view of an overhanging beam embedded part structure;
FIG. 5 is a three-dimensional schematic view of a steel plate structure;
FIG. 6 is a three-dimensional schematic view of a connector structure;
FIG. 7 is a main beam reinforcement view;
fig. 8 is a secondary beam reinforcement diagram.
In the figure, 1 is a precast concrete girder; 2, precast concrete secondary beams; 3 is a connecting piece; 4 is a steel plate; 1-1 is a precast concrete girder body; 1-2 is an extending beam; 1-3 are notches; 1-4 are embedded parts; 1-4-1 is an embedded part steel plate; 1-4-2 is an embedded part bolt; 1-4-3 is a nut; 1-5 are reinforcing steel bar channels; 1-6 are main beam hoops; 1-7 are main beam stress bars; 1-8 are stress bars of the overhanging beam; 2-1 is a precast concrete secondary beam body; 2-2 is a gap at the end of the secondary beam; 2-3, reserving reinforcing steel bars at the end of the secondary beam; 2-4 are bolt passages; 2-5 is a secondary beam stirrup; 3-1 is a connecting piece steel plate; 3-2 is the upper reinforcing steel bar of the connecting piece; 3-3 is a steel bar at the lower part of the connecting piece; 3-3 is a steel bar sleeve; 4-1 is a bolt through hole.
Detailed Description
For further explanation of the present invention, the following detailed description of the present invention is provided with reference to the drawings and examples, which should not be construed as limiting the scope of the present invention.
The utility model provides an assembled concrete girder and secondary beam dry-type connected node is shown as figure 1~ 8. The utility model comprises a precast concrete main beam (1), a precast concrete secondary beam (2), a connecting piece (3) and a steel plate (4); an overhanging beam (1-2) with a notch (1-3) and a length not less than 500mm is extended from one side of the precast concrete main beam (1), a reinforcing steel bar channel (1-5) is reserved in the precast concrete main beam (1), the reinforcing steel bar channel (1-5) is positioned at the intersection of the beam body (1-1) and the overhanging beam (1-2), the length direction of the reinforcing steel bar channel is the same as that of the overhanging beam (1-2), the reinforcing steel bar channel penetrates through the beam body (1-1), and an embedded part (1-4) formed by welding an embedded part steel plate (1-4-1) and an embedded part bolt (1-4-2) is embedded below the notch (1-3) of the overhanging beam; the beam end of the precast concrete secondary beam (2) is lapped on a notch (1-3) of the overhanging beam, an embedded part bolt (1-4-2) penetrates through a bolt channel (2-4) of the beam end of the secondary beam, and an upper reinforcing steel bar (3-2) of the connecting piece and a lower reinforcing steel bar (3-3) of the connecting piece penetrate through a reinforcing steel bar channel (1-5); a secondary beam end gap (2-2) is reserved in the precast concrete secondary beam (2), the secondary beam end is encrypted through stirrups, a bolt channel (2-4) and transverse reserved steel bars (2-3) are reserved at the connecting end, an embedded part bolt (1-4-2) penetrates through the reserved bolt channel (2-4) of the secondary beam end, the reserved steel bars (2-3) at the secondary beam end and the steel bars (3-2) at the upper part of the connecting part are connected together through steel bar sleeves (3-3), and the steel bar sleeves (3-3) are connected with the steel bars through the secondary beam end gap (2-2); the connecting piece (3) is formed by welding a connecting piece steel plate (3-1), a connecting piece upper portion steel bar (3-2) and a connecting piece lower portion steel bar (3-3), wherein the connecting piece upper portion steel bar (3-2) and the connecting piece lower portion steel bar (3-3) are located on one side of the connecting piece steel plate (3-1) and are perpendicular to the connecting piece steel plate.
The precast concrete girder (1) mainly comprises a precast concrete girder body (1-1), an overhanging girder (1-2), a notch (1-3), an embedded part (1-4), a steel bar channel (1-5), a girder hoop (1-6), a girder stress bar (1-7) and an overhanging girder stress bar (1-8); the size of the notch (1-3) is the same as that of the beam end of the precast concrete secondary beam (2), the position of the embedded part bolt (1-4-2) corresponds to the bolt channel (2-4), and the position of the steel bar channel (1-5) corresponds to the steel bar (3-2) at the upper part of the connecting piece and the steel bar (3-3) at the lower part of the connecting piece.
The precast concrete secondary beam (2) mainly comprises a precast concrete secondary beam body (2-1), a secondary beam end gap (2-2), a secondary beam end reserved steel bar (2-3), a bolt channel (2-4) and a secondary beam stirrup (2-5); the positions of the reserved steel bars (2-3) at the ends of the secondary beam correspond to the positions of the steel bar channels (1-5).
The connecting piece (3) mainly comprises a connecting piece steel plate (3-1), a connecting piece upper reinforcing steel bar (3-2) and a connecting piece lower reinforcing steel bar (3-3); the length of the upper reinforcing steel bar (3-2) of the connecting piece corresponds to the width of the main beam, and the length of the lower reinforcing steel bar (3-3) of the connecting piece corresponds to the width of the overhanging beam.
The installation steps are as follows:
(a) the beam end of a precast concrete secondary beam (2) is hoisted and lapped on a notch (1-3) of an overhanging beam (1-2), an embedded part bolt (1-4-2) penetrates through a bolt channel (2-4) corresponding to the beam end of the secondary beam, a steel plate (4) is arranged on the beam end, the embedded part bolt (1-4-2) penetrates through a corresponding bolt through hole (4-1), and finally the embedded part bolt is fastened by a nut (1-4-3);
(b) and the upper steel bars (3-2) of the connecting pieces respectively penetrate through the steel bar channels (1-5) corresponding to the concrete main beams, and the upper steel bars (3-2) of the connecting pieces, the lower steel bars (3-3) of the connecting pieces and the reserved steel bars (2-3) at the beam ends of the secondary beams are connected together by using steel bar sleeves (3-3) at the gaps (2-2) at the beam ends of the secondary beams.
Claims (4)
1. The utility model provides an assembled concrete primary and secondary beam structure and dry-type connected node thereof which characterized in that: the prefabricated concrete secondary beam comprises a prefabricated concrete main beam (1), a prefabricated concrete secondary beam (2), a connecting piece (3) and a steel plate (4); an overhanging beam (1-2) with a notch (1-3) and a length not less than 500mm is extended from one side of the precast concrete main beam (1), a reinforcing steel bar channel (1-5) is reserved in the precast concrete main beam (1), the reinforcing steel bar channel (1-5) is positioned at the intersection of the beam body (1-1) and the overhanging beam (1-2), the length direction of the reinforcing steel bar channel is the same as that of the overhanging beam (1-2), the reinforcing steel bar channel penetrates through the beam body (1-1), and an embedded part (1-4) formed by welding an embedded part steel plate (1-4-1) and an embedded part bolt (1-4-2) is embedded below the notch (1-3) of the overhanging beam; the beam end of the precast concrete secondary beam (2) is lapped on a notch (1-3) of the overhanging beam, an embedded part bolt (1-4-2) penetrates through a bolt channel (2-4) of the beam end of the secondary beam, and an upper reinforcing steel bar (3-2) of the connecting piece and a lower reinforcing steel bar (3-3) of the connecting piece penetrate through a reinforcing steel bar channel (1-5); a secondary beam end gap (2-2) is reserved in the precast concrete secondary beam (2), the secondary beam end is encrypted through stirrups, a bolt channel (2-4) and transverse reserved steel bars (2-3) are reserved at the connecting end, an embedded part bolt (1-4-2) penetrates through the reserved bolt channel (2-4) of the secondary beam end, the reserved steel bars (2-3) at the secondary beam end and the steel bars (3-2) at the upper part of the connecting part are connected together through steel bar sleeves (3-3), and the steel bar sleeves (3-3) are connected with the steel bars through the secondary beam end gap (2-2); the connecting piece (3) is formed by welding a connecting piece steel plate (3-1), a connecting piece upper portion steel bar (3-2) and a connecting piece lower portion steel bar (3-3), wherein the connecting piece upper portion steel bar (3-2) and the connecting piece lower portion steel bar (3-3) are located on one side of the connecting piece steel plate (3-1) and are perpendicular to the connecting piece steel plate.
2. The fabricated concrete primary and secondary girder structure and the dry type connection node thereof according to claim 1, wherein: the precast concrete girder (1) mainly comprises a precast concrete girder body (1-1), an overhanging girder (1-2), a notch (1-3), an embedded part (1-4), a steel bar channel (1-5), a girder hoop (1-6), a girder stress bar (1-7) and an overhanging girder stress bar (1-8); the size of the notch (1-3) is the same as that of the beam end of the precast concrete secondary beam (2), the position of the embedded part bolt (1-4-2) corresponds to the bolt channel (2-4), and the position of the steel bar channel (1-5) corresponds to the steel bar (3-2) at the upper part of the connecting piece and the steel bar (3-3) at the lower part of the connecting piece.
3. The fabricated concrete primary and secondary girder structure and the dry type connection node thereof according to claim 1, wherein: the precast concrete secondary beam (2) mainly comprises a precast concrete secondary beam body (2-1), a secondary beam end gap (2-2), a secondary beam end reserved steel bar (2-3), a bolt channel (2-4) and a secondary beam stirrup (2-5); the positions of the reserved steel bars (2-3) at the ends of the secondary beam correspond to the positions of the steel bar channels (1-5).
4. The fabricated concrete primary and secondary girder structure and the dry type connection node thereof according to claim 1, wherein: the connecting piece (3) mainly comprises a connecting piece steel plate (3-1), a connecting piece upper reinforcing steel bar (3-2) and a connecting piece lower reinforcing steel bar (3-3); the length of the upper reinforcing steel bar (3-2) of the connecting piece corresponds to the width of the main beam, and the length of the lower reinforcing steel bar (3-3) of the connecting piece corresponds to the width of the overhanging beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022034178.1U CN212801943U (en) | 2020-09-16 | 2020-09-16 | Assembled concrete primary and secondary beam structure and dry-type connecting joint thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022034178.1U CN212801943U (en) | 2020-09-16 | 2020-09-16 | Assembled concrete primary and secondary beam structure and dry-type connecting joint thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212801943U true CN212801943U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022034178.1U Expired - Fee Related CN212801943U (en) | 2020-09-16 | 2020-09-16 | Assembled concrete primary and secondary beam structure and dry-type connecting joint thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212801943U (en) |
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2020
- 2020-09-16 CN CN202022034178.1U patent/CN212801943U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 Termination date: 20210916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |