Novel prefabricated column-beam joint structure

Abstract

The utility model belongs to the technical field of prefabricated columns and beams, and particularly relates to a novel prefabricated column and beam joint structure which comprises a prefabricated column and a prefabricated beam, the prefabricated column is located on the left of the prefabricated beam, the prefabricated column and the prefabricated beam are in a T-shaped placement state, H-shaped steel is arranged between the prefabricated column and the prefabricated beam in a penetrating mode, and a steel plate is arranged in the middle of the H-shaped steel in a sleeved mode. The external force borne by the prefabricated column and the prefabricated beam can be transmitted to the cross position between the H-shaped steel and the steel plate to be decomposed, due to the fact that the steel bar sleeves are reserved in the prefabricated column in advance, the steel bars extending out of the interior of the prefabricated beam penetrate into the corresponding steel bar sleeves along the steel plate; the joint between the prefabricated column and the prefabricated beam is conveniently, efficiently and quickly spliced, so that the H-shaped steel is prevented from moving, the shock resistance of the structure to the joint between the prefabricated beam and the prefabricated column is improved, and the problems that an existing column and beam joint structure is insufficient in connection strength, low in construction efficiency, large in construction difficulty and the like are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated column beams, and in particular relates to a novel prefabricated column beam node structure. Background Art

[0002] With the development of building industrialization, prefabricated buildings have been widely used due to their high construction efficiency and stable quality. However, due to the complex structure and concentrated force at the joints of columns and beams in prefabricated buildings, there are often problems such as insufficient connection strength, low construction efficiency, and great construction difficulty, which greatly affects the overall performance and construction efficiency of prefabricated buildings. Therefore, it is of great practical application value and market prospects to innovate the nodes of prefabricated columns and beams to improve the connection strength and construction efficiency.

[0003] Therefore, in view of the shortcomings of the existing prefabricated column-beam node connection technology, the utility model proposes a new prefabricated column-beam node connection method, aiming to solve the defects in the existing technology and improve the seismic performance and construction efficiency of prefabricated buildings. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, so as to solve the problems of insufficient connection strength, low construction efficiency, great construction difficulty, etc. existing in the above-mentioned background technology.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a new type of prefabricated column-beam node structure, including prefabricated columns and prefabricated beams:

[0006] The prefabricated column is located on the left side of the prefabricated beam, and is arranged in a T-shape between the prefabricated column and the prefabricated beam. H-shaped steel is inserted between the prefabricated column and the prefabricated beam, and a steel plate is inserted in the middle of the H-shaped steel. A second H-shaped groove and a first H-shaped groove are respectively provided on the surface of the H-shaped steel and on the left and right sides of the steel plate. A plurality of through holes are provided on the surface of the steel plate, and the through holes penetrate the outer surface of the prefabricated column.

[0007] Preferably, the steel plate and the H-shaped steel are both metal plates.

[0008] Preferably, the steel plate is embedded in the prefabricated column, and bolts are threadedly connected to the four corners of the steel plate. The tail ends of the bolts penetrate into the prefabricated column, and the steel plate and the bolts are tightly attached to each other.

[0009] Preferably, a plurality of steel bar sleeves and a plurality of second steel bars are respectively embedded in the prefabricated columns, the steel bar sleeves are aligned one by one with adjacent through holes, and a plurality of first steel bars are embedded in the prefabricated beams, the left end of the first steel bar is inserted to the left in sequence through the adjacent through holes, the surface of the same steel plate and the adjacent steel bar sleeves.

[0010] Preferably, multiple said first steel bars are evenly distributed on the front and back sides of the H-shaped steel, and the length of the first steel bar is greater than the length of the H-shaped steel.

[0011] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0012] The steel plate is made by a prefabrication method, and positions for inserting the H-shaped steel are reserved on the steel plate. At the same time, 4 bolt holes are respectively reserved at the four corners of the steel plate. A section of H-shaped steel is connected between the precast column and the precast beam. At the same time, grooves for placing the H-shaped steel are preset on one side of the precast column and the connection section of the precast beam in advance. At the same time, a groove is dug on one side of the surface of the precast column for placing the steel plate. The position of the H-shaped steel reserved on the surface of the precast beam is used to accommodate the H-shaped steel. During the construction process, bolts are first installed to fix the steel plate inside the precast column, and then the H-shaped steel is inserted into the precast column, so that the H-shaped steel and the steel plate cross in a "cross" shape. The external forces borne by the precast column and the precast beam will be transmitted to the "cross" intersection between the H-shaped steel and the steel plate for decomposition. The precast column and the precast beam are evenly stressed and have high strength. Since the steel bar sleeves are reserved in the precast column in advance, the steel bars extending from the inside of the precast beam are inserted into the corresponding steel bar sleeves along the steel plate, which is convenient for quickly and efficiently splicing the joints between the precast column and the precast beam, so as to fix the connection between the precast column and the precast beam, and avoid the H-shaped steel from moving. The structure is simple and ingenious, the construction is simple and convenient, the stability is strong, the connection strength between the precast beam and the precast column and the construction efficiency are improved, the stability of the joint structure of the precast column and the precast beam is enhanced, and the seismic capacity of the connection between the precast beam and the precast column of the structure is enhanced. Description of the Drawings

[0013] Figure 1 is the assembly effect diagram of the H-shaped steel of the present utility model;

[0014] Figure 2 is the external structure assembly effect diagram of the joint between the precast column and the precast beam of the present utility model;

[0015] Figure 3 is the assembly effect diagram of the H-shaped steel and the steel plate of the present utility model.

[0016] In the figure: 1, precast column; 2, precast beam; 3, H-shaped steel; 4, steel plate; 5, through hole; 6, bolt; 7, steel bar sleeve; 8, first H-shaped groove; 9, second H-shaped groove; 10, first steel bar; 12, second steel bar. Detailed Embodiments

[0017] Please refer to Figures 1-3 , the present utility model provides a technical solution: The technical solution adopted by the present utility model to solve its technical problems is: A novel precast column 1 beam joint structure, including a precast column 1 and a precast beam 2:

[0018] The precast column 1 is located to the left of the precast beam 2. The precast column 1 and the precast beam 2 are arranged in a T-shaped state. An H-shaped steel 3 is interposed between the precast column 1 and the precast beam 2. A steel plate 4 is sleeved in the middle of the H-shaped steel 3. Second H-shaped grooves 9 and first H-shaped grooves 8 are respectively formed on the surface of the H-shaped steel 3 on the left and right sides of the steel plate 4. A plurality of through holes 5 are formed on the surface of the steel plate 4, and the through holes 5 penetrate through the outer surface of the precast column 1.

[0019] A plurality of reinforcing bar sleeves 7 and a plurality of second reinforcing bars 12 are respectively embedded inside the precast column 1. The reinforcing bar sleeves 7 are aligned with the adjacent through holes 5 one by one. A plurality of first reinforcing bars 10 are embedded inside the precast beam 2. The left end of the first reinforcing bar 10 sequentially penetrates through the inside of the adjacent through holes 5, the surface of the same steel plate 4, and the inside of the adjacent reinforcing bar sleeves 7 from left to right. The support skeleton structures of the first reinforcing bar 10 and the second reinforcing bar 12 for prefabricating the contour structures of the precast beam 2 and the precast column 1 are pre-constructed. A shielding jig is used to shield the positions on the surface of the precast column 1 where the steel plate 4 needs to be installed, so as to facilitate reserving the positions for inserting the H-shaped steel 3 on the steel plate 4, and the positions of the reinforcing bar sleeves 7 are reserved in advance. The reinforcing bar sleeves 7 are reserved in the precast column 1, and the first reinforcing bar 10 and the reinforcing bar sleeves 7 are used for the insertion of the reinforcing bars to facilitate fixation. The groove of the precast beam 2 is inserted into the H-shaped steel 3, and at the same time, the embedded reinforcing bars are inserted into the reserved reinforcing bar sleeves 7 to align them. The reinforcing bar sleeves 7 are often reserved in the joint core area. The longitudinal reinforcing bars on one side of the precast beam 2 are arranged with an excessive length, and are inserted into the reinforcing bar sleeves 7 during on-site installation and extend into the column hole channels, while ensuring that the positions of the reinforcing bars and the reinforcing bar sleeves 7 in the precast column 1 do not cross and collide.

[0020] A mold is used to cover the support skeleton structures of the first reinforcing bar 10 and the second reinforcing bar 12, and concrete is respectively poured for the first reinforcing bar 10 and the second reinforcing bar 12. After the concrete dries and hardens into a formed shape, the precast beam 2 and the precast column 1 are respectively formed on the surfaces of the support skeleton structures of the first reinforcing bar 10 and the second reinforcing bar 12, forming components, so that the first reinforcing bar 10 and the second reinforcing bar 12 are respectively embedded inside the precast beam 2 and the precast column 1.

[0021] The position of the H-shaped steel 3 reserved on the surface of the precast beam 2 is used to accommodate the H-shaped steel 3. A placement notch for the H-shaped steel 3 is reserved on one side of the precast column 1 and a placement notch for the H-shaped steel 3 is reserved on the connecting section of the beam in advance, so as to stabilize the connection between the precast column 1 and the beam. A section of H-shaped steel 3 is used to connect the precast column 1 and the precast beam 2. A section of H-shaped steel 3 is connected between the precast column 1 and the precast beam 2. During the construction process, an H-shaped groove for placing the H-shaped steel 3 is preset in advance on one side of the precast column 1 and the connecting section of the precast beam 2. The shape of the H-shaped steel 3 itself forms a second H-shaped groove 9 and a first H-shaped groove 8 on the left and right ends of its surface. A groove is dug on one side of the surface of the prefabricated column 1 for placing the steel plate 4, and the steel plate 4 is installed between the bottom of the bolt groove. The steel plate 4 is pre-buried inside the prefabricated column 1, and bolts 6 are threadedly connected at the four corners of the steel plate 4. The tail end of the bolt 6 passes through the inside of the prefabricated column 1, and the end of the bolt 6 passes through the steel plate 4. The end of the bolt 6 penetrates into the prefabricated column 1, and the bolt 6 and the four bolt 6 holes are interspersed. By setting a bolt 6 groove on one side of the prefabricated column 1, the steel plate 4 is placed in the bolt 6 groove, and then four bolts 6 are used to vertically penetrate the steel plate 4 and the prefabricated column 1 in turn. After tightening the four bolts 6, the steel plate 4 is placed inside the prefabricated column 1, and the entire construction process of installing the steel plate 4 on the prefabricated column 1 can be completed.

[0022] The H-shaped steel 3 is vertically inserted into the steel plate 4 and the prefabricated column 1, and the left end of the H-shaped steel 3 is inserted into the interior of the prefabricated column 1, ensuring that one end of the H-shaped steel 3 is stably and immovably stuck in the prefabricated column 1, which is convenient for installation and improves the node strength between the prefabricated column 1 and the prefabricated beam 2. At the same time, four bolt 6 holes are reserved at the four corners of the steel plate for screwing in the bolts 6, and bolt grooves for the steel plate 4 are reserved for the subsequent installation of the steel plate 4. At the same time, the insertion position of the H-shaped steel 3 is reserved to ensure that the H-shaped steel 3 can occupy half of the entire H-shaped steel 3 after being inserted into the prefabricated column 1. The steel plate 4 is made by a prefabrication method, and a bolt 6 hole and a bolt groove are reserved on the other side of the prefabricated column 1 after the H-shaped steel 3 is inserted. For placing the steel plate 4, and four bolt hole positions are reserved in the prefabricated column 1 to ensure that the bolt 6 can be fully inserted into the prefabricated column 1, the steel plate 4 and the bolt 6 are tightly attached to each other, and there is no gap between the bolt 6 and the steel plate 4.

[0023] The prefabricated beam 2 needs to reserve a position for the H-shaped steel 3 to ensure that the other half of the H-shaped steel 3 can be inserted into the prefabricated beam 2. The steel plate 4 is about 4 cm thick and its cross-sectional size is consistent with the size of the prefabricated beam 2. The steel plate 4 must ensure that the positions of the 4 bolt 6 holes and the position of the H-shaped steel 3 are consistent with the embedded position in the prefabricated column 1.

[0024] First, install the bolt 6 to fix the steel plate 4 inside the precast column 1. Then, insert the H-shaped steel 3 into the precast column 1 so that the H-shaped steel 3 and the steel plate 4 cross in a "cross" distribution. Align the left end of the precast beam 2 with the middle of the right end of the precast column 1. The left end of the first steel bar 10 extends a short distance to the left in advance. Both the steel plate 4 and the H-shaped steel 3 are metal plates, and through holes 5 that penetrate the steel plate 4 are pre-drilled on the surface of the precast column 1. The left end of the first steel bar 10 passes through the steel plate 4 to the left along the through hole 5 and inserts into the interior of the precast column 1. Multiple first steel bars are evenly distributed on both the front and back sides of the H-shaped steel, and the length of the first steel bar is greater than the length of the H-shaped steel. The first steel bars 10 are respectively placed in the second H-shaped groove 9 and the first H-shaped groove 8 on the surface of the H-shaped steel 3 to facilitate the assembly of the precast beam 2 and the precast column 1, and finally form a new column-beam joint structure different from the prior art.

[0025] The external forces borne by the precast column 1 and the precast beam 2 will be transmitted to the "cross" intersection between the H-shaped steel 3 and the steel plate 4 for decomposition. The precast column 1 and the precast beam 2 are evenly stressed and have high strength. Since the steel bar sleeves 7 are reserved in the precast column 1 in advance, the steel bars extending from the interior of the precast beam 2 are inserted into the corresponding steel bar sleeves 7 along the steel plate 4, which facilitates the efficient and quick splicing of the joints between the precast column 1 and the precast beam 2, and is convenient for fixing the connection between the precast column 1 and the precast beam 2. The first steel bar 10 and the second steel bar 11 undergo elastic deformation as the precast column 1 and the precast beam 2 are stressed. The external forces borne by the precast column 1 and the precast beam 2 are offset by the flexibility of the first steel bar 10 and the second steel bar 11 themselves to prevent the H-shaped steel 3 from moving. The structure is simple and ingenious, the construction is simple and convenient, the stability is strong, the connection strength between the precast beam 2 and the precast column 1 and the construction efficiency are improved, the stability of this column-beam joint structure is enhanced, and the seismic resistance of the connection between the precast beam 2 and the precast column 1 of this structure is enhanced.

[0026] Construction process summary: Reserve the H-shaped steel 3 in the precast column 1 and the precast beam 2 in advance, and insert the H-shaped steel 3 into the H-shaped groove in the precast beam 2. At the same time, install the steel plate 4 on one side of the precast column 1 and fix it with bolts 6 so that the steel plate 4 is embedded in the precast column 1. Because the bolt 6 holes and the H-shaped grooves in the precast beam 2 are reserved in the steel plate 4 in advance, first let the H-shaped steel 3 be stuck in the precast column 1 and the steel plate 4. Reserve the positions of the steel bar sleeves 7 in the precast column 1 in advance for inserting steel bars. Finally, the precast beam 2 and the precast column 1 are spliced to solve the joint problem.

Claims

1. A novel prefabricated column-beam node structure, comprising a prefabricated column (1) and a prefabricated beam (2), characterized in that: The prefabricated column (1) is located on the left side of the prefabricated beam (2), and the prefabricated column (1) and the prefabricated beam (2) are arranged in a T-shape. An H-shaped steel (3) is inserted between the prefabricated column (1) and the prefabricated beam (2), and a steel plate (4) is inserted in the middle of the H-shaped steel (3). A second H-shaped groove (9) and a first H-shaped groove (8) are respectively provided on the surface of the H-shaped steel (3) and on the left and right sides of the steel plate (4). A plurality of through holes (5) are provided on the surface of the steel plate (4), and the through holes (5) penetrate the outer surface of the prefabricated column (1).

2. A novel precast column-beam joint structure according to claim 1, characterized in that: The steel plate (4) and the H-shaped steel (3) are both metal plates.

3. A novel precast column-beam joint structure according to claim 1, characterized in that: The steel plate (4) is pre-buried inside the prefabricated column (1), and the four corners of the steel plate (4) are threadedly connected with bolts (6), and the tail ends of the bolts (6) penetrate into the prefabricated column (1), and the steel plate (4) and the bolts (6) are tightly attached to each other.

4. A novel precast column-beam joint structure as described in claim 1, characterized in that: A plurality of steel bar sleeves (7) and a plurality of second steel bars (11) are respectively embedded in the prefabricated column (1), and the steel bar sleeves (7) are aligned one by one with the adjacent through holes (5). A plurality of first steel bars (10) are embedded in the prefabricated beam (2), and the left end of the first steel bar (10) is inserted to the left in sequence through the adjacent through holes (5), the surface of the same steel plate (4), and the inside of the adjacent steel bar sleeves (7).

5. A novel precast column-beam joint structure according to claim 4, characterized in that: The plurality of first steel bars (10) are evenly distributed on the front and rear sides of the H-shaped steel (3), and the length of the first steel bars (10) is greater than the length of the H-shaped steel (3).

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