Beam end hinged connecting assembly for bearing axial force in high-rise building

A technology for high-rise buildings and connecting components, applied in the direction of buildings and building structures, etc., can solve problems such as loss of cross-sectional area, cracking of welds, yielding of steel plates in node areas, etc., to reduce the loss of cross-sectional area and improve the effect of turning ability.

Active Publication Date: 2021-11-09
大象建筑设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The existing connection method is close to semi-rigid connection, the rotational deformation capacity of the joint is greatly limited, the actual rotational performance is very different from the rotational performance in the design assumption, and the actual force of the component is different from the force result of the theoretical analysis Larger; when the vertical deformation difference at both ends of the axial force beam is large, the existing connection method cannot complete sufficient rotation, which may easily cause the steel plate in the node area to yield or the weld to crack
[0005] 2. For beams with wider flanges and smaller web heights, the beam end adopts the method of connecting the webs to the flanges without connecting the flanges, which will cause a large loss of cross-sectional area, and the net cross-sectional area of ​​the beam is only the gross cross-sectional area Half or even less, the beam end nodes become obvious weak points, which do not meet the basic requirements of strong nodes and weak members in seismic design

Method used

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  • Beam end hinged connecting assembly for bearing axial force in high-rise building
  • Beam end hinged connecting assembly for bearing axial force in high-rise building
  • Beam end hinged connecting assembly for bearing axial force in high-rise building

Examples

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Effect test

specific Embodiment 1

[0037] The axial force beam consists of a vertical web 1 located in the vertical direction, and a first flange plate 2 connected to both ends of the vertical web 1. The first flange plate 2 is located in the horizontal direction, and the whole is in the shape of "I". .

[0038] The connection assembly, the connection assembly includes a cross steel plate 7 with a cross-shaped longitudinal section, one end of the cross steel plate 7 is welded on the vertical steel frame 15 of the lateral force-resistant member, and the other end of the cross steel plate 7 is welded with an end plate 14 . Preferably, the height of the vertical plate of the cross steel plate 7 is equal to the height of the vertical web 1 but smaller than the height of the end plate 14 .

[0039] A first connecting plate 9 is provided on the end faces of the cross steel plate 7 on both sides of the upper and lower sides, and a first bolt hole 8 is opened on the first connecting plate 9; the first flange plate 2 of...

specific Embodiment 2

[0042] The axial force beam consists of a vertical web 1 located in the vertical direction, and first flange plates 2 connected to both ends of the vertical web 1 , and the first flange plate 2 is located in the horizontal direction. The axial force beam also includes a horizontal web 5 in the horizontal direction, and the horizontal web 5 crosses the vertical web 1, so that the longitudinal section of the overall structure formed by the vertical web 1 and the horizontal web is cross-shaped. The longitudinal section of the entire axial beam is in the shape of a "king". The increased horizontal web can effectively increase the area of ​​the end of the axial beam, thereby increasing the area of ​​the net section of the beam end node.

[0043] The connection assembly, the connection assembly includes a cross steel plate 7 with a cross-shaped longitudinal section, one end of the cross steel plate 7 is welded on the vertical steel frame of the lateral force-resistant member, and th...

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Abstract

The invention relates to the field of buildings. The invention discloses a beam end hinged connecting assembly for bearing axial force in a high-rise building. The connecting assembly comprises a vertical steel rib of a lateral force resisting component and an axial force beam, wherein the axial force beam comprises a vertical web plate and a first flange plate, the connecting assembly comprises a cross-shaped steel plate, one end of the cross-shaped steel plate is welded to the vertical steel rib of the lateral force resisting component, an end plate is welded at the other end of the cross-shaped steel plate, the end faces, located on the upper side and the lower side, of the cross-shaped steel plate are provided with removable first connecting plates, first bolt holes are formed in the first connecting plates, a removable second connecting plate is arranged at the end part of the first flange plate of the axial force beam, a second bolt hole is formed in the second connecting plate, the connecting assembly further comprises an auxiliary plate, and at least two third bolt holes are formed in the auxiliary plate. According to the connecting assembly, the rotating capacity of the beam end of the articulated axial force beam can be improved, and meanwhile the sectional area loss of a beam end node is greatly reduced.

Description

technical field [0001] The invention relates to the field of construction, in particular to hinged beam structures. Background technique [0002] In multi-storey or high-rise buildings, when the vertical members of the external frame have corners at the floor, the beams at the floor will bear a large axial force (compression or tension); the axial force needs to be transmitted to the The core tube of the building is on the lateral force-resisting member; therefore, the beam (axial force beam) that transmits the axial force plays a key role in maintaining the bearing capacity of the turning vertical member. At the same time, in order to overcome the problem of poor deformation of the frame and the core tube, one or both ends of the axial force beam will use hinge joints. [0003] Existing axial force beams are mostly composed of webs and flange plates connected to both ends of the webs. When the existing axial force beam is connected with the lateral force-resisting member,...

Claims

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Application Information

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IPC IPC(8): E04B1/24E04B1/58
CPCE04B1/24E04B1/2403E04B2001/2406E04B2001/2415E04B2001/2418
Inventor 龚铭胡凌华何亮徐浩翔
Owner 大象建筑设计有限公司
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