Articulated beam-beam joint

Abstract

The utility model discloses a hinged beam joint in the field of steel structure buildings, which comprises an upper cross beam and a lower longitudinal beam, the end parts of the upper cross beam and the lower longitudinal beam are lapped, the end part of the upper cross beam is provided with a pair of lower connecting lugs, and the end part of the lower longitudinal beam is provided with a pair of side connecting lugs. The lower connecting lug is inserted into the inner side of the side connecting lug and rotationally connected with the side connecting lug through a transversely-arranged connecting pin, an outer thread is arranged at the tail end of the connecting pin, a threaded sleeve is screwed to the tail end of the connecting pin, and a locking bolt is screwed to the other end of the threaded sleeve. According to the hinged type beam-beam joint, the bending moment of the beams under the influence of earthquakes, fierce wind and the like is reduced by reducing constraint between the beams, and the windproof and anti-seismic performance of a building is improved.

Description

Technical Field

[0001] The utility model relates to the field of steel structure buildings, in particular to an articulated beam node. Background Art

[0002] At present, steel structure buildings have been widely used in various industries. They are fast, easy to install and construct, and have strong structures, environmental protection and energy saving. However, in the installation and construction process of existing steel structure buildings, the connection between beams is usually made by end welding. This rigid connection method is used to connect beams in the ceiling and other places. Due to the large number of constraints, it is easy to cause excessive bending moment of beams under the influence of earthquakes, strong winds, etc., which affects the service life of the building. Utility Model Content

[0003] The utility model aims to provide an articulated beam node to improve the wind and earthquake resistance of buildings.

[0004] The purpose of the utility model is achieved as follows: an articulated beam-beam node, comprising an upper crossbeam and a lower longitudinal beam, the ends of the upper crossbeam and the lower longitudinal beam overlap, a pair of lower connecting ears are provided at the end of the upper crossbeam, a pair of side connecting ears are provided at the end of the lower longitudinal beam, the lower connecting ears are plugged into the inner side of the side connecting ears and are rotatably connected through a transversely arranged connecting pin, the end of the connecting pin is provided with an external thread, and a threaded sleeve is screwed, and a locking bolt is screwed on the other end of the threaded sleeve. The articulated beam-beam node of the utility model reduces the constraints between beams and thus reduces the bending moment of the beam under the influence of earthquakes, strong winds, etc., thereby improving the windproof and earthquake-resistant performance of the building.

[0005] As a further improvement of the utility model, an inner reinforcement plate is welded between the lower connecting ears, the upper side of the inner reinforcement plate is welded and fixed to the upper cross beam, and a rotating support seat is provided under the inner reinforcement plate. The rotating support seat has a U-shaped cross-section and is welded and fixed to the lower connecting ears on both sides to ensure the structural strength of the connection position and the reliability of the connection.

[0006] As a further improvement of the present invention, the thickness of the side connecting ears is not less than 2 cm, which further improves the structural strength of the connection position and the connection reliability.

[0007] As a further improvement of the present invention, a first oblique reinforcement plate is provided between the bottom surface of the upper cross beam and the outer side of the lower connecting ear. The first oblique reinforcement plate is arranged near the outer end of the side connecting ear to ensure the structural strength of the connection position.

[0008] As a further improvement of the utility model, a second oblique reinforcement plate is provided between the side surface of the lower longitudinal beam and the side connecting ear, and the second oblique reinforcement plate is arranged near the upper and lower ends of the side connecting ear to further ensure the structural strength of the connection position.

[0009] As a further improvement of the utility model, the upper cross beam and the lower longitudinal beam are box beams and / or I-beams, which have wide versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of an articulated beam node of the utility model.

[0011] Among them, 1 is an upper cross beam, 2 is a lower longitudinal beam, 3 is a lower connecting ear, 4 is a side connecting ear, 5 is a connecting pin, 6 is a threaded sleeve, 7 is a locking bolt, 8 is an inner reinforcement plate, 9 is a rotating support seat, 10 is a first oblique reinforcement plate, and 11 is a second oblique reinforcement plate. DETAILED DESCRIPTION

[0012] like Figure 1 The articulated beam node shown includes an upper cross beam 1 and a lower longitudinal beam 2. In this embodiment, the upper cross beam 1 is a box beam, and the lower longitudinal beam 2 is an I-beam. In specific implementation, there may be other various variations, and the upper cross beam 1 and the lower longitudinal beam 2 may adopt any suitable structure as required.

[0013] The ends of the upper cross beam 1 and the lower longitudinal beam 2 are overlapped, a pair of lower connecting ears 3 are provided at the end of the upper cross beam 1, and a pair of side connecting ears 4 are provided at the end of the lower longitudinal beam 2. The lower connecting ears 3 are inserted into the inner sides of the side connecting ears 4 and are rotatably connected through a laterally arranged connecting pin 5. The end of the connecting pin 5 is provided with an external thread and is screwed with a threaded sleeve 6, and the other end of the threaded sleeve 6 is screwed with a locking bolt 7.

[0014] In order to ensure the structural strength of the connection position and the reliability of the connection, an inner reinforcing plate 8 is welded between the lower connecting ears 3. The upper side of the inner reinforcing plate 8 is welded and fixed to the upper cross beam 1. A rotating support seat 9 is provided below the inner reinforcing plate 8. The cross section of the rotating support seat 9 is U-shaped and is welded and fixed to the lower connecting ears 3 on both sides. The thickness of the side connecting ear 4 is not less than 2 cm. A first oblique reinforcing plate 10 is provided between the bottom surface of the upper cross beam 1 and the outer side of the lower connecting ear 3. The first oblique reinforcing plate 10 is arranged near the outer end of the side connecting ear 4. A second oblique reinforcing plate 11 is provided between the side surface of the lower longitudinal beam 2 and the side connecting ear 4. The second oblique reinforcing plate 11 is arranged near the upper and lower ends of the side connecting ear 4.

[0015] The articulated beam node of this embodiment reduces the constraints between beams, thereby reducing the bending moment of the beams under the influence of earthquakes, strong winds, etc., thereby improving the wind-proof and earthquake-resistant performance of the building.

[0016] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. An articulated beam node, comprising an upper cross beam and a lower longitudinal beam, wherein the ends of the upper cross beam and the lower longitudinal beam are overlapped, characterized in that: A pair of lower connecting ears are provided at the end of the upper cross beam, and a pair of side connecting ears are provided at the end of the lower longitudinal beam. The lower connecting ears are inserted into the inner sides of the side connecting ears and are rotatably connected through a laterally arranged connecting pin. The end of the connecting pin is provided with an external thread and is screwed with a threaded sleeve. The other end of the threaded sleeve is screwed with a locking bolt.

2. The articulated beam node according to claim 1, characterized in that: An inner reinforcing plate is welded between the lower connecting ears, the upper side of the inner reinforcing plate is welded and fixed to the upper cross beam, and a rotating support seat is provided below the inner reinforcing plate. The rotating support seat has a U-shaped cross section and is welded and fixed to the lower connecting ears on both sides.

3. The articulated beam node according to claim 1, characterized in that: The thickness of the side connecting ear is not less than 2 cm.

4. The articulated beam node according to claim 1, characterized in that: A first oblique reinforcing plate is provided between the bottom surface of the upper cross beam and the outer side of the lower connecting ear, and the first oblique reinforcing plate is arranged near the outer end of the side connecting ear.

5. The articulated beam node according to claim 4, characterized in that: A second oblique reinforcing plate is provided between the side surface of the lower longitudinal beam and the side connecting ear, and the second oblique reinforcing plate is arranged near the upper and lower ends of the side connecting ear.

6. The articulated beam node according to any one of claims 1 to 5, characterized in that: The upper cross beam and the lower longitudinal beam are box beams and / or I-beams.

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