An assembled beam-column lapping structure

Abstract

The present invention discloses an assembled beam-column lapping structure, which includes a square steel pipe column, a first steel beam, a second steel beam, a first reinforcing steel bar, and a second reinforcing steel bar. The first steel beam and the second steel beam pass through the transverse hole and the longitudinal hole of the square steel pipe column in a cross direction. The size of the first steel beam is larger than that of the second steel beam. The height of the second steel beam is flush with the notch formed by the edge of the first steel beam. A corresponding first groove is provided on the edge of the transverse hole above the second steel beam and on the notch of the edge of the first steel beam. The first reinforcing steel bar passes through the first groove. A longitudinal second groove is provided on the lower plane of the first reinforcing steel bar. The second reinforcing steel bar is embedded in the second groove. The present invention uses steel bars to be connected in a form imitating tenon and mortise, so that the assembled steel structure has higher precision and better connection mode after assembly, eliminates the influence of residual prestress of the traditional construction method, has stronger performance, has more excellent seismic performance and faster construction speed.

Description

Technical Field

[0001] The present invention belongs to the technical field of civil engineering, and particularly relates to a prefabricated beam-column lapping structure. Background Art

[0002] At present, prefabricated buildings have many advantages over traditional buildings, being more environmentally friendly, faster, having a shorter construction period, lower energy consumption, and better meeting the requirements of 'green buildings' under the new situation. They are now widely used. However, there are still many defects in the connection nodes of steel beams and columns in prefabricated buildings. The traditional rigid connection method for prefabricated beam-columns is mainly welding. The welded steel beam-columns have residual prestress and will be compressed and deformed, resulting in a reduction in bearing capacity and an unsatisfactory seismic effect. In addition, they are also affected by the construction environment and the skills of workers. Once the welded beam-column members are damaged, they need to be cut off, wasting materials. How to propose a prefabricated beam-column lapping structure with a simple structure, reliable force transmission, material saving, and convenient construction has certain practical significance. Summary of the Invention

[0003] To solve the above problems, the present invention discloses a prefabricated beam-column lapping structure, which uses steel bars to penetrate in a form imitating mortise and tenon, so that the assembled prefabricated steel structure has higher accuracy and a better connection method, eliminates the influence of residual prestress of the traditional construction method, has stronger performance, more excellent seismic performance, and faster construction.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A prefabricated beam-column lapping structure includes a square steel pipe column, a first steel beam, a second steel beam, a first reinforcing steel bar, and a second reinforcing steel bar. The square steel pipe column is provided with a horizontal hole and a vertical hole on the side surface. The first steel beam and the second steel beam pass through the horizontal hole and the vertical hole of the square steel pipe column in a cross direction. The first steel beam and the second steel beam are both composed of two opposite channel steels and a vertical plate vertically connecting the two channel steels in the middle. The size of the first steel beam is larger than that of the second steel beam. The height of the second steel beam is flush with the notch formed by the edge of the first steel beam. A first groove is provided at the edge of the horizontal hole above the second steel beam, and a corresponding first groove is also provided on the notch of the edge of the first steel beam. The first reinforcing steel bar passes through the first groove. A longitudinal second groove is provided on the lower plane of the first reinforcing steel bar. The second reinforcing steel bar is embedded in the second groove, and the second reinforcing steel bar is arranged on the outer edge of the square steel pipe column.

[0006] As an improvement of the present invention, the width ratio of the square steel pipe column to the first steel beam and the second steel beam is 5:4:2.

[0007] As an improvement of the present invention, the size ratio of the first steel beam to the second steel beam is 2:1.

[0008] As an improvement of the present invention, the number of the first reinforcing steel bars is six, with three on the upper and lower sides respectively.

[0009] As an improvement of the present invention, the number of the second reinforcing steel bars is four.

[0010] As an improvement of the present invention, the first groove and the second groove are square grooves.

[0011] As an improvement of the present invention, the width ratio of the first reinforcing steel bar to the second reinforcing steel bar is 4:1.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. Compared with the traditional prefabricated beam-column connection method, this penetration connection imitating the mortise and tenon form has higher accuracy and better connection method in assembly, eliminating the influence of residual prestress of the traditional construction method.

[0014] 2. Due to the disadvantages of the wooden mortise and tenon structure such as being flammable and easy to corrode, the steel bars are used to combine the prefabricated steel structure with the mortise and tenon connection principle, which has better seismic performance and faster construction compared with the original traditional welded steel structure beam-column; it can be disassembled when damage is found, which is convenient for recycling and cost saving.

[0015] 3. The first steel beam and the second steel beam save costs while reducing their own weights, reducing the internal force of the structural design, and the wide flange has strong bending resistance. At the same time, the square steel column used can be poured inside for easy reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a sectional view of the lapping structure described in the present invention.

[0017] Figure 2 It is a schematic diagram of the square steel pipe column described in the present invention.

[0018] Figure 3 It is a schematic diagram of the first steel beam described in the present invention.

[0019] Figure 4 It is a schematic diagram of the second steel beam described in the present invention.

[0020] Figure 5 It is a schematic diagram of the first reinforcing steel bar described in the present invention.

[0021] LIST OF REFERENCE NUMERALS IN THE DRAWINGS:

[0022] 1. Square steel pipe column, 2. First steel beam, 3. Second steel beam, 4. First reinforcing steel bar, 5. Second reinforcing steel bar, 6. Transverse hole, 7. Longitudinal hole, 8. Channel steel, 9. Vertical plate, 10. First groove, 11. Second groove. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0024] As shown in the figure, an assembled beam-column lapping structure of the present invention includes a square steel pipe column 1, a first steel beam 2, a second steel beam 3, a first reinforcing steel bar 4, and a second reinforcing steel bar 5. The square steel pipe column 1 is provided with a transverse hole 6 and a longitudinal hole 7 on the side. The first steel beam 2 and the second steel beam 3 cross the transverse hole 6 and the longitudinal hole 7 of the square steel pipe column in a cross direction. The first steel beam 2 and the second steel beam 3 are both composed of two opposite channel steels 8 and a vertical plate 9 vertically connecting the two channel steels in the middle. The size of the first steel beam 2 is larger than that of the second steel beam 3. The height of the second steel beam 3 is flush with the notch formed by the edge of the first steel beam 2. A first groove 10 is provided at the edge of the transverse hole above the second steel beam, and a corresponding first groove 10 is also provided on the notch of the edge of the first steel beam 2. The first reinforcing steel bar 4 passes through the first groove 10. A longitudinal second groove 11 is provided on the lower plane of the first reinforcing steel bar 4. The second reinforcing steel bar 5 is embedded in the second groove 11. The second reinforcing steel bar 5 is arranged on the outer edge of the square steel pipe column 1.

[0025] The lapping method includes the following steps:

[0026] 1). Install a square steel pipe column 1, and open a transverse hole 6 and a longitudinal hole 7 on the column body through which the first steel beam 2 and the second steel beam 3 can pass. The width ratio of the column to the widths of the two beams is 5:4:2, as Figure 2 shown;

[0027] 2). Set the first steel beam 2 and the second steel beam 3 with edges extending inwards. The size ratio of the two steel beams is 2:1. A hole is opened on one side of the larger first steel beam 2 through which the smaller second steel beam 3 can pass. As Figure 3 shown;

[0028] 3). The smaller second steel beam 3 passes through the hole and is flush with the notch formed by the edge of the larger first steel beam 2;

[0029] 4). Open first grooves 10 (square grooves) on the edges and the inner side of the square steel pipe column 1 and the larger first steel beam 2 through which 6 first reinforcing steel bars 4 can pass for reinforcement, as Figure 5 shown;

[0030] 5). Open second grooves 11 (square grooves) at the bottom ends of the 6 first reinforcing steel bars 4 through which 4 smaller second reinforcing steel bars 5 can pass for secondary reinforcement. After passing through, the second reinforcing steel bars 5 are arranged on the outer edge of the square steel pipe column 1; the width ratio of the first reinforcing steel bar 4 to the second reinforcing steel bar 5 is 4:1, as Figure 1 shown.

[0031] The present invention uses two groups of steel bars to be connected in a form imitating mortise and tenon joints, so that the assembled steel structure has higher precision and better connection methods after assembly, eliminates the influence of residual prestress of traditional construction methods, has stronger performance, has more excellent seismic performance and faster construction speed.

[0032] It should be noted that the above content only illustrates the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. An assembled beam-column lapping structure, characterized in that: It includes a square steel pipe column (1), a first steel beam (2), a second steel beam (3), a first reinforcing steel bar (4), and a second reinforcing steel bar (5). The square steel pipe column (1) is provided with a transverse hole (6) and a longitudinal hole (7) on the side. The first steel beam (2) and the second steel beam (3) pass through the transverse hole (6) and the longitudinal hole (7) of the square steel pipe column in a cross direction. The first steel beam (2) and the second steel beam (3) are both composed of two opposite channel steels (8) and a vertical plate (9) vertically connecting the two channel steels in the middle. The size of the first steel beam (2) is larger than that of the second steel beam (3). The width ratio of the square steel pipe column (1) to the first steel beam (2) and the second steel beam (3) is 5:4:

2. The size ratio of the first steel beam (2) to the second steel beam (3) is 2:

1. The height of the second steel beam (3) is flush with the notch formed by the edge of the first steel beam (2). A first groove (10) is provided at the edge of the transverse hole above the second steel beam (3), and a corresponding first groove (10) is also provided at the notch on the edge of the first steel beam (2). The first reinforcing steel bar (4) passes through the first groove (10). A longitudinal second groove (11) is provided on the lower plane of the first reinforcing steel bar (4). The second reinforcing steel bar (5) is embedded in the second groove (11). The second reinforcing steel bar (5) is arranged on the outer edge of the square steel pipe column (1). The number of the first reinforcing steel bars (4) is six, three at the top and three at the bottom.

2. The assembled beam-column lapping structure according to claim 1, characterized in that: The number of the second reinforcing steel bars (5) is four.

3. The assembled beam-column lapping structure according to claim 1, characterized in that: The first groove (10) and the second groove (11) are square grooves.

4. The assembled beam-column lapping structure according to claim 1, characterized in that: The width ratio of the first reinforcing steel bar (4) to the second reinforcing steel bar (5) is 4:

1.

5. The assembled beam-column lapping structure according to claim 1, characterized in that: The lapping method includes the following steps: 1). Install a square steel pipe column (1), and open a transverse hole (6) and a longitudinal hole (7) on the column body through which the first steel beam (2) and the second steel beam (3) can pass. 2). Set the first steel beam (2) and the second steel beam (3) with edges extending inwards, and open a hole on one side of the larger first steel beam (2) through which the smaller second steel beam (3) can pass. 3). The smaller second steel beam (3) passes through the hole and is flush with the notch formed by the edge of the larger first steel beam (2). 4). Open first grooves (10) on the edges and inside of the square steel pipe column (1) and the larger first steel beam (2) through which 6 first reinforcing steel bars (4) can pass for reinforcement. 5). Open second grooves (11) at the bottom ends of the 6 first reinforcing steel bars (4) through which 4 smaller second reinforcing steel bars (5) can pass for secondary reinforcement. After passing through, the second reinforcing steel bars (5) are arranged on the outer edge of the square steel pipe column (1).

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