CN203412112U - Easily repaired beam column node of band open strip-type energy dissipation element - Google Patents

Abstract

The utility model provides an easily repairable beam-column node with strip-shaped hole energy-dissipating elements, comprising a vertical H-shaped steel column and an H-shaped steel beam whose end is vertically connected to the side flange of the H-shaped steel column; H The connecting end of the web of the shaped steel beam and the side flange of the H-shaped steel column is connected and fastened through a reinforced connecting plate that fits the H-shaped steel beam, and the fasteners of the reinforced connecting plate are connected and fastened, and the reinforced connecting plate and the H The side flanges of the steel columns are welded together; the lower flanges of the H-shaped steel beams are fastened to energy-dissipating elements through fasteners. The transverse plates of the first T-shaped connecting piece are welded, and the upper and lower ends of the longitudinal plate of the first T-shaped connecting piece are fastened to the side flanges of the H-shaped steel column through fasteners. The utility model is a beam-column joint used in the field of building steel structures, which has better energy dissipation capacity, can avoid large damage to beams and columns in major earthquakes, and is easy to repair after damage.

Description

An easily repairable beam-column joint with energy-dissipating elements with open strip holes

technical field

The utility model relates to a building steel structure, in particular to an easily repairable beam-column node with strip-shaped hole energy-dissipating elements.

Background technique

Steel structure has a series of advantages such as high strength, light weight, good seismic performance, fast construction, low foundation cost, small occupied area, high degree of industrialization and beautiful appearance. Compared with concrete structure, it is environmentally friendly and reusable. It is also a structure that is easy to industrialize. The connection node between the beam and the column is a key component to ensure that the beam and the column work together to form a structural whole. In the multi-story steel structure frame, the typical beam-column connection is butt welding between the beam flange and the column, and the web and the column are connected by high-strength bolts. In the past, the beam-column bolted and welded hybrid joint was considered to have good seismic performance. However, in the Northridge Earthquake in 1994 and the Hanshin Earthquake in 1995, although hundreds of steel structures constructed using this joint did not collapse, they did not collapse. Severe brittle failures occurred at the nodes. While exploring the cause of its failure, the researchers improved the traditional beam-column joints and proposed a joint form with strong ductility and energy dissipation capacity. The main measures for improvement include: strengthening the connecting parts, weakening the beam section, improving the fan-shaped corner cutting structure, and welding the beam web and column without welding operation holes. Although the improved beam-column joints showed superior seismic performance in the laboratory, since the seismic design idea is based on the formation of plastic hinges in the frame to provide the required ductility of the structure, it is relatively difficult to repair if the actual engineering using these joints is damaged.

Utility model content

In order to solve the problems existing in the prior art that the beam-column joint has insufficient ductility, is prone to brittle failure and is difficult to repair in a large earthquake, the utility model provides an easily repairable beam-column joint with energy-dissipating elements with open strip holes.

In order to achieve the above object, the utility model adopts the following technical solutions:

An easily repairable beam-column node with strip-shaped hole energy dissipation elements, comprising a vertical H-shaped steel column and an H-shaped steel beam whose end is vertically connected to the side flange of the H-shaped steel column; the H-shaped steel beam The connecting end of the web and the side flange of the H-shaped steel column is connected through a reinforced connecting plate that fits the web of the H-shaped steel beam, and one end of the reinforced connecting plate passes through and passes through the fastener of the reinforced connecting plate and the The web of the shaped steel beam is fastened, and the other end of the reinforced connecting plate is welded to the side flange of the H-shaped steel column; the lower flange of the H-shaped steel beam is fastened to the energy-dissipating element with strip holes Solid, the energy-dissipating element with strip-shaped holes is arranged under the lower flange of the H-shaped steel beam, and its two sides are welded to the transverse plate of the first T-shaped connector arranged horizontally below, and the first T-shaped connector The upper and lower ends of the longitudinal plate of the component are fastened to the side flange of the H-shaped steel column by fasteners.

The further improvement of the utility model is that: the energy dissipation element with strip-shaped holes is provided with two rows of longitudinally arranged and symmetrical strip-shaped holes.

The further improvement of the utility model lies in that two rows of strip holes are located on both sides of the fastener connecting the energy-dissipating element with strip holes.

The further improvement of the utility model is that: a square hole is arranged in the middle of the transverse plate of the first T-shaped connector.

The further improvement of the utility model is that: the distance between the periphery of the square hole of the first T-shaped connector and the fastening piece connected to the energy dissipation element with a strip-shaped hole is greater than 5mm.

The further improvement of the utility model is that: the two sides of the upper flange connection end of the H-shaped steel beam are respectively fastened through the second T-shaped connecting plate and the H-shaped steel column through fasteners, and the second T-shaped connection The plate is placed horizontally, the upper and lower ends of the longitudinal plate are fastened to the side flange of the H-shaped steel column by fasteners, and the transverse plate is attached to the top surface of the upper flange of the H-shaped steel beam and fastened by fasteners.

A further improvement of the utility model is that: the H-shaped steel column is provided with a first stiffener connected to the web of the H-shaped steel column and the flanges on both sides at the same horizontal position as the upper flange of the H-shaped steel beam.

A further improvement of the utility model is that: the H-shaped steel column is provided with a second stiffener connected to the web of the H-shaped steel column and the flanges on both sides at the same horizontal position as the lower flange of the H-shaped steel beam.

The further improvement of the utility model is that: the fasteners are high-strength bolts, studs or rivets.

Compared with the prior art, the beneficial effects of the utility model are reflected in:

By setting energy-dissipating elements with strip-shaped holes between the lower flange of the H-shaped steel beam and the transverse plate of the first T-shaped connector, the insufficient ductility and brittleness of the beam-column joints in the prior art are better solved. In addition, compared with the traditional beam-column joint with bolted and welded hybrid connection, the beam-column joint with energy-dissipating elements with open strip holes is easy to repair after damage.

Description of drawings

Figure 1 is an isometric view 1 of an embodiment.

Figure 2 is an isometric view 2 of the embodiment.

Figure 3 is a front view of the embodiment.

Fig. 4 is a right side view of the embodiment.

Fig. 5 is a left side view of the embodiment.

Figure 6 is a bottom view of the embodiment.

Figure 7 is a top view of the embodiment.

Fig. 8 is a plan view of the energy dissipation element with strip holes in the embodiment.

Detailed ways

Referring to Figures 1 to 7, the utility model is an easily repairable beam-column node with strip-shaped hole energy-dissipating elements, including a vertical H-shaped steel column 1 and a side flange 4 whose end is vertically connected to the H-shaped steel column 1 The upper H-shaped steel beam 2; the connecting end of the web 7 of the H-shaped steel beam 2 and the side flange 4 of the H-shaped steel column 1 is connected through a reinforced connecting plate 15 fitted with the web 7 of the H-shaped steel beam 2, One end of the reinforced connecting plate 15 is fastened to the web 7 of the H-shaped steel beam 2 through high-strength bolts 16, and the other end of the reinforced connecting plate 15 is welded to the side flange 4 of the H-shaped steel column 1; the lower part of the H-shaped steel beam 2 The flange 6 is fastened to the energy-dissipating element 14 with a strip-shaped hole by high-strength bolts 16. The energy-dissipating element 14 with a strip-shaped hole is arranged under the lower flange 6 of the H-shaped steel beam 2, and its two sides are connected with The transverse plate 13 of the first T-shaped connector 11 arranged horizontally below is connected by a fillet weld 19, and the upper and lower ends of the longitudinal plate 12 of the first T-shaped connector 11 are connected to the side flange of the H-shaped steel column 1 through high-strength bolts 16 4 Fasten.

Referring to FIG. 8 , the strip holes of the energy dissipation element 14 with strip holes are arranged longitudinally and arranged symmetrically on both sides of the energy dissipation element 14 with strip holes.

Referring to Fig. 6, a square hole is arranged in the middle of the transverse plate 13 of the first T-shaped connector 11, and the square hole facilitates the installation of the lower flange 6 of the H-shaped steel beam 2 and the energy-dissipating element with a strip-shaped hole through high-strength bolts 16. dismantle.

Referring to FIG. 6 , the distance between the periphery of the square hole of the first T-shaped connector 11 and the high-strength bolts 16 connected to the energy-dissipating element 14 with a strip-shaped hole is 5mm.

Referring to Figures 1 to 5, both sides of the connection end of the upper flange 5 of the H-shaped steel beam 2 are respectively fastened through the second T-shaped connecting plate 8 and the H-shaped steel column 1 through high-strength bolts 16. The second T The connecting plate 8 is placed horizontally, the upper and lower ends of the longitudinal plate 9 are fastened to the side flange 4 of the H-shaped steel column 1 through high-strength bolts 16, and the transverse plate 10 is attached to the top surface of the upper flange 5 of the H-shaped steel beam, and Fastened by high-strength bolts 16.

Referring to Figures 1 and 2, the H-shaped steel column 1 is provided with a first stiffener 17 connected to the web 3 of the H-shaped steel column 1 and the flanges 4 on both sides at the same horizontal position as the upper flange 5 of the H-shaped steel beam 2 .

Referring to Figures 1 and 2, the H-shaped steel column 1 is provided with a second stiffener 18 connected to the web 3 of the H-shaped steel column 1 and the flanges 4 on both sides at the same horizontal position as the lower flange 6 of the H-shaped steel beam 2 .

Although the embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments, which are only illustrative and instructive, rather than restrictive. Under the enlightenment of this specification, those skilled in the art can also make many forms without departing from the protection scope of the claims of the present invention, and these all belong to the list of the protection of the present invention.

Claims (9)

1. An easily repairable beam-column node with strip-shaped hole energy-dissipating elements, characterized in that it includes a vertical H-shaped steel column (1) and its end is vertically connected to the side flange of the H-shaped steel column (1) ( 4) The upper H-shaped steel beam (2); the connecting end of the web (7) of the H-shaped steel beam (2) and the side flange (4) of the H-shaped steel column (1) passes through the H-shaped steel beam The web (7) of (2) is connected to the reinforced connecting plate (15), and one end of the reinforced connecting plate (15) passes through the fasteners of the reinforced connecting plate (15) and the H-shaped steel beam (2 ) of the web (7) is fastened, and the other end of the reinforced connecting plate (15) is welded to the side flange (4) of the H-shaped steel column (1); the lower flange of the H-shaped steel beam (2) ( 6) Fasten the energy-dissipating element (14) with a strip-shaped hole through fasteners, and the energy-dissipating element (14) with a strip-shaped hole is set under the lower flange (6) of the H-shaped steel beam (2) , its two sides are welded to the transverse plate (13) of the first T-shaped connector (11) arranged horizontally below, and the upper and lower ends of the longitudinal plate (12) of the first T-shaped connector (11) are passed through fasteners Fasten with the side flange (4) of the H-shaped steel column (1). 2. The easily repairable beam-column joint with strip-shaped hole energy-dissipating elements according to claim 1, characterized in that: the energy-dissipating element (14) with strip-shaped holes is provided with two rows arranged longitudinally and symmetrically strip holes. 3. The easily repairable beam-column joint with energy-dissipating elements with open strip holes according to claim 1, characterized in that: two rows of strip-shaped holes are located on the fasteners connecting the energy-dissipating elements (14) with open strip-shaped holes sides. 4. The easily repairable beam-column joint with strip-shaped hole energy-dissipating elements according to claim 1, characterized in that: a square hole is arranged in the middle of the transverse plate (13) of the first T-shaped connector (11) . 5. The easily repairable beam-column node with strip-shaped hole energy-dissipating elements according to claim 4, characterized in that: the periphery of the square hole of the first T-shaped connector (11) and the energy-dissipating element with strip-shaped holes The distance between the fasteners connected to the energy element (14) is greater than 5 mm. 6. The easily repairable beam-column joint with strip-shaped hole energy-dissipating elements according to claim 1, characterized in that: the two sides of the connection end of the upper flange (5) of the H-shaped steel beam (2) respectively pass through The second T-shaped connecting plate (8) is fastened to the H-shaped steel column (1) through fasteners, the second T-shaped connecting plate (8) is placed horizontally, and the upper and lower ends of the longitudinal plate (9) are fastened The piece is fastened to the side flange (4) of the H-shaped steel column (1), and its transverse plate (10) is attached to the top surface of the upper flange (5) of the H-shaped steel beam and fastened by fasteners. 7. The easily repairable beam-column joint with strip-shaped hole energy-dissipating elements according to claim 6, characterized in that: the H-shaped steel column (1) is located on the upper flange of the H-shaped steel beam (2) ( 5) The first stiffener (17) connected to the web (3) and flanges (4) on both sides of the H-shaped steel column (1) is arranged at the same horizontal position. 8. The easily repairable beam-column joint with strip-shaped hole energy-dissipating elements according to claim 6, characterized in that: the H-shaped steel column (1) is located at the lower flange of the H-shaped steel beam (2) ( 6) A second stiffener (18) connected to the web (3) of the H-shaped steel column (1) and the flanges (4) on both sides is arranged at the same horizontal position. 9. The easily repairable beam-column joint with strip-shaped hole energy-dissipating elements according to any one of claims 1-8, wherein the fasteners are high-strength bolts, studs or rivets.

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