Support-free fabricated beam-column joint structure

Abstract

The utility model discloses a support-free assembly type beam-column joint structure, which solves the problem that the end part of a steel beam and the end part of a steel corbel are difficult to align and quickly fix in the high-altitude hoisting operation of the existing steel beam. A wedge-shaped notch is formed in the outer end of the steel corbel and is obliquely arranged from top to bottom, two steel plates are welded and fixed to the wedge-shaped notch and form a bearing end with a V-shaped section, the end of the I-shaped steel is of a sharp structure, and two auxiliary steel plates are welded to the end of the steel beam. An included angle is formed between the two auxiliary steel plates, and the two auxiliary steel plates form a lap joint end with an A-shaped section; and the lap joint end is lapped at the bearing end. According to the node structure, rapid lap joint between the steel beam and the steel corbel is achieved through the inclined V-shaped lap joint interface design, support-free rapid positioning is achieved without relying on a scaffold or a supporting rod piece, and the stability of the steel beam is achieved under the action of the self weight of the steel beam.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of assembly type beam column joint structure design. BACKGROUND

[0002] In the prior art, the beam column joint design generally adopts I-shaped steel and transition connecting steel plates and is fixed by steel rivets. For example, CN119308415A discloses a self-resetting energy dissipation steel frame with flexible support. It comprises vertically arranged I-shaped steel columns, the I-shaped steel columns comprising I-shaped steel side columns and an I-shaped steel middle column; steel beams are horizontally arranged between the I-shaped steel columns, and the I-shaped steel columns and the steel beams are connected by sliding friction-shaped beam column joints; a support section is connected to the lower part of the I-shaped steel side column and the middle part of the I-shaped steel middle column; and a column foot is connected to the bottom of the I-shaped steel middle column. In the installation process, especially in the high-altitude hoisting operation process, the steel beams, transition connecting steel plates and corbels need to be effectively aligned before the steel rivets can be fixed, and such high-altitude hoisting operation is difficult. SUMMARY

[0003] To solve the problems of the prior art, the utility model provides a support-free assembly type beam column joint structure, which solves the problem that the end of the steel beam and the end of the steel corbel are difficult to align and quickly fixed in the high-altitude hoisting operation of the existing steel beam.

[0004] The utility model solves the technical problems by adopting the following technical scheme:

[0005] A support-free assembly type beam column joint structure, the joint structure comprising a stand, a steel corbel and an I-shaped beam, characterized in that the outer end of the steel corbel has a wedge-shaped notch, the wedge-shaped notch is inclined from top to bottom, two steel plates are welded and fixed at the wedge-shaped notch, the two steel plates form a V-shaped receiving end, the end of the I-shaped steel has a pointed structure, two auxiliary steel plates are welded at the end of the steel beam, the two auxiliary steel plates have an included angle and form an A-shaped overlapping end, the overlapping end gradually transitions from the inner lower part to the outer upper part, and the overlapping end is lapped on the receiving end.

[0006] Further, a rubber gasket is arranged in the wedge-shaped matching surface formed between the receiving end and the overlapping end.

[0007] Further, the rubber gasket is a polyurethane gasket.

[0008] Further, a polytetrafluoroethylene gasket is arranged in the wedge-shaped matching surface formed between the receiving end and the overlapping end.

[0009] Further, a plurality of bolt holes and rivets are arranged between the receiving end and the overlapping end.

[0010] Further, the bolt hole is a long strip hole.

[0011] Further, a falling prevention structure is arranged between the steel beam and the column, which is a connecting side lug welded on the column and the steel beam, and a basket bolt mechanically installed between the two connecting side lugs.

[0012] Further, a rough surface for increasing friction is arranged on the matching surface of the receiving end and the overlapping end.

[0013] Further, the column is a concrete column or a steel column.

[0014] Further, the steel bracket is in an I-shaped structure.

[0015] The beneficial effects of the present application are:

[0016] The V-shaped overlapping interface design in the present node structure realizes the quick overlapping between the steel beam and the steel bracket, and does not rely on the scaffold or the supporting rod, realizes the quick positioning without support, and realizes the stability of the steel beam under the action of the weight of the steel beam itself. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the present beam-column node structure.

[0018] Figure 2 It is a perspective view of the present beam-column node structure.

[0019] Figure 3 It is a front view of the present application.

[0020] Figure 4 It is Figure 3 It is a sectional view of A--A.

[0021] Figure 5 It is a sectional view of the steel bracket.

[0022] In the figure:

[0023] 00 wedge-shaped matching surface,

[0024] 100 column, 110 steel bracket, 111 receiving end,

[0025] 200 I-beam, 210 overlapping end, 220 rivet,

[0026] 300 connecting side lug, 310 basket bolt. DETAILED DESCRIPTION

[0027] The present embodiment will be described in conjunction with the drawings in the description. Figure 1 to the drawings in the description. Figure 5The application discloses a kind of free support assembly type beam column joint structure, the node structure includes stand 100, steel bracket 110 and I beam 200, wherein stand can be concrete stand or steel stand, and steel bracket is fixedly installed on the stand.

[0028] The vertical section of the steel bracket 110 has a cross shape structure, which has better shear resistance and meets the design requirements of the strong node in the structural design manual. The end of the steel bracket is a receiving end 111, a wedge-shaped gap is formed at the outer end of the steel bracket by cutting, the wedge-shaped gap is inclined from top to bottom, and two steel plates are welded at the wedge-shaped gap. The two steel plates form a V-shaped receiving end, that is, the two steel plates are inclined after welding. The two steel plates are inclined outward and upward from the center line. This design structure allows the steel beam to automatically center and automatically align after falling.

[0029] The steel beam is an I beam 200, a sharp structure is formed at the end of the steel beam by cutting, and two auxiliary steel plates are welded at the end of the steel beam. The two auxiliary steel plates have a certain included angle and form an A-shaped lap joint end 210. The lap joint end is not in the vertical direction, but gradually transitions from the lower inside to the upper outside. The technical advantage of this structure is that during high-altitude hoisting operation, the lap joint end of the steel beam end can be quickly placed on the receiving end of the steel bracket, and automatically centered and aligned under the action of the inclined V-shaped matching surface, forming a semi-wrapped structure.

[0030] Further, a rubber gasket (not shown in the figure) is arranged in the wedge-shaped matching surface 00 between the receiving end and the lap joint end. The existence of the gasket can adjust the flatness of the upper surface of the steel beam and the steel bracket, and also has a damping effect. The existence of the rubber gasket also plays a role in cold and hot bridge breaking.

[0031] The above-mentioned rubber gasket can be a polyurethane gasket or a polytetrafluoroethylene gasket, which can also have similar effects.

[0032] Further, a plurality of bolt holes are arranged between the receiving end and the lap joint end. The bolt holes can be long holes, and the long holes are arranged along the sliding direction of the matching surface, that is, along the vertical direction. Rivets 220 are used to limit the position between the two, and the rivets are in a non-tightening state, that is, the rivets are used to limit the position of the receiving end and the lap joint end, and are not used for fastening, so that the end of the steel beam has a certain space for movement.

[0033] Further, a falling prevention structure is arranged between the steel beam and the column, the structure refers to welding a connecting side lug 300 on the column and the steel beam, and a basket bolt 310 is fixedly arranged between the two connecting side lugs, the basket bolt realizes auxiliary connection between the steel beam and the column, and when the steel beam has large displacement, the basket bolt has obvious limiting effect.

[0034] Further, a rough surface for increasing friction is arranged at the matching surface of the receiving end and the overlapping end, which can better increase the friction resistance, and has positive significance for improving the anti-seismic performance.

[0035] The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the scope of the present application, and various modifications and improvements of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application defined by the claims.

Claims

1. A self-braced fabricated beam-column joint structure, the joint structure comprising a column, a steel haunch and a I-beam, characterised in that, The outer end of the steel bracket has a wedge-shaped notch, which is inclined from top to bottom. Two steel plates are welded and fixed at the wedge-shaped notch, forming a V-shaped receiving end. The end of the I-beam has a pointed structure, and two auxiliary steel plates are welded to the end of the steel beam. The two auxiliary steel plates have an included angle and form an A-shaped overlapping end. The overlapping end gradually transitions from the inner lower part to the outer upper part, and the overlapping end rests on the receiving end.

2. The self-supporting fabricated beam-column joint structure according to claim 1, wherein, A rubber gasket is provided in the wedge-shaped mating surface formed between the receiving end and the overlapping end.

3. The support-free fabricated beam-column joint structure according to claim 2, wherein, The rubber gasket is a polyurethane gasket.

4. The self-supporting fabricated beam-column joint structure according to claim 1, wherein, A polytetrafluoroethylene gasket is provided in the wedge-shaped mating surface formed between the receiving end and the overlapping end.

5. The self-supporting fabricated beam-column joint structure according to claim 1, wherein, Multiple bolt holes are provided between the receiving end and the overlapping end, and rivets are installed thereon.

6. The support-free fabricated beam-column joint structure according to claim 5, wherein, The bolt hole is an elongated hole.

7. The support-free fabricated beam-column joint structure according to claim 1, wherein, An anti-fall-off structure is also provided between the steel beam and the column. This structure refers to the connection lugs welded on the column and the steel beam, and the turnbuckles mechanically installed between the two connection lugs.

8. The support-free fabricated beam-column joint structure according to claim 1, wherein, The mating surfaces of the receiving end and the overlapping end are provided with rough surfaces to increase friction.

9. The support-free fabricated beam-column joint structure according to claim 1, wherein, The columns are either concrete columns or steel columns.

10. The self-supporting fabricated beam-column joint structure according to claim 1, wherein, The steel bracket has a cross-sectional structure resembling a grid.

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