Friction damper for frame structure joint and building frame structure

A friction damper and frame structure technology, which is applied to building components, buildings, building types, etc., can solve the problems of not compactness, occupied space, and complex structure of friction dampers, so as to improve energy dissipation and increase friction. force effect

Pending Publication Date: 2020-03-31
NANJING COMM INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is that the structure of the existing friction damper is complex and not compact, and the space occupied at the joints of the frame structure is large and it is inconvenient to disassemble and assemble the frame structure

Method used

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  • Friction damper for frame structure joint and building frame structure
  • Friction damper for frame structure joint and building frame structure
  • Friction damper for frame structure joint and building frame structure

Examples

Experimental program
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Effect test

Embodiment 1

[0055] This embodiment provides a friction damper for frame structure joints, such as Figure 1 to Figure 11 As shown, it includes at least one first energy consumption board 21 , at least one second energy consumption board 22 , and at least one prestressed component 23 .

[0056] For example, if image 3 As shown, there are two first energy consumption boards 21 and two second energy consumption boards 22 respectively, and there are several prestressed components 23 . For the first energy consumption board 21, as Figure 4a As shown, the first energy consumption board 21 is provided with a first elongated hole 211 extending along its length direction, and the end of the first elongated hole 211 close to the node of the frame structure is used as the first end ( Figure 4a the right end in ), and the other end away from the node as the second end ( Figure 4a The left end of the center), the diameter of the first elongated hole 211 gradually increases from the first end to...

Embodiment 2

[0076] This embodiment provides a building frame structure, such as figure 1 and figure 2 As shown, it includes at least two frame columns 11 , at least one frame beam 12 and at least two friction dampers provided by any one of embodiment 1.

[0077] Wherein, a plurality of frame columns 11 are arranged vertically and horizontally at intervals; each frame beam 12 is arranged horizontally between two adjacent frame columns 11; The frame columns 11 are connected. for example, figure 1 Two friction dampers are respectively used to connect one end of the frame beam 12 with its adjacent frame column 11 .

[0078] In the building frame structure of this embodiment, since the nodes of the frame beam 12 and the frame column 11 are fixedly connected by using the friction damper in Example 1, the building frame structure has the performance of energy dissipation and function recovery in an earthquake, At the same time, the structure of the building frame structure is compact, and t...

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Abstract

The invention discloses a friction damper for a frame structure joint and a building frame structure. The damper comprises a first energy consumption plate, a second energy consumption plate and a prestress assembly, wherein the hole diameter of the first end of a first long-strip-shaped hole in the first energy consumption plate is smaller than that of the other positions; and the building framestructure comprises the friction damper. When an earthquake happens, due to the fact that the first end of the first long-strip-shaped hole is close to the joint, the hole diameter of the first end ofthe first long-strip-shaped hole is smaller than that of the other positions of the first long-strip-shaped hole, when the second energy consumption plate and a frame beam move in the first long-strip-shaped hole relative to a frame column at the same time, the prestress assembly can abut against the inner wall face of the first end, the second energy consumption plate and the frame beam rotate relative to the first energy consumption plate and the frame column with the prestress assembly at the first end as a rotating shaft at the same time, an existing connecting sleeve and an existing rotating shaft do not need to be independently arranged, the structure of the whole friction damper is simplified, the occupied space is small, and assembling and disassembling of the friction damper arefacilitated.

Description

technical field [0001] The invention belongs to the technical field of shock absorption of building frame structures, and in particular relates to a friction damper used for frame structure nodes and a building frame structure. Background technique [0002] Due to the advantages of high strength, ductility, and light weight, steel structures are widely used in earthquake-resistant structures. However, in recent decades, a large number of steel structures have brittle failures at the joints where beams and frame columns are connected. Stress concentration occurs at the joints of many steel structure houses. In an earthquake, it is easy to cause the collapse of the steel structure. Even if the steel structure does not collapse, the subsequent maintenance of the steel structure will cost a lot. [0003] With the continuous development of anti-seismic technology, the steel structure has gradually changed from the anti-collapse design to the recoverable function to reduce the los...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H9/02E04B1/98
CPCE04B1/98E04H9/021
Inventor 孙小云陈剑波张文斌王珣
Owner NANJING COMM INST OF TECH
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