Adjustable swing-type tuned mass damper

A tuned mass damping, swinging technology, applied in the field of building structural engineering and civil structural engineering, can solve the problems of TMD imbalance, no installation space, reduced expected vibration damping effect, etc., to achieve large span, reduced vibration, and small thickness. Effect

Inactive Publication Date: 2009-09-30
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The vertical size of TMD in the traditional structure is large, and there is not enough installation space for general floors without equipment floors;
[0005] 2. The actual load and other parameters of the floor in use are often quite different from the design values, which will make the TMD of the parameters set according to the latte

Method used

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  • Adjustable swing-type tuned mass damper
  • Adjustable swing-type tuned mass damper
  • Adjustable swing-type tuned mass damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 , figure 2 As shown, the base 2 of the adjustable oscillating tuned mass damper APTMD is a structural form of a rectangular steel frame 9 formed by welding or bolting L-shaped cross-section steel (or bolting channel-shaped steel). The mass block 1 is a steel block (or other metal materials such as cast iron), which is arranged on a local area (or the entire area) of the base 2 by means of bolt connection, and the quantity and position of the mass block 1 can be changed as required. A frame at one end in the length direction of the base 2 is provided with a hinge support 7 to be connected to the floor, the connection between the hinge support 7 and the frame and the embedded parts of the floor is welded, and the frame at the other end is provided with a damper 3 to be connected with the floor. The connection between the damper 3 and the frame and the embedded parts of the floor adopts bolt connection. Frame connectors 5 are respectively welded near th...

Embodiment 2

[0028] Such as image 3 , Figure 4 As shown, the base 2 of the adjustable oscillating tuned mass damper APTMD is a structural form connected by a rectangular steel frame 9 and an inner frame 10, the frame 9 is made of channel-shaped section steel, and the inner frame 10 is made of channel-shaped or H-shaped section Steel (the inner frame 10 indicated by the number in the brackets in the figure indicates that when the mass block 1 is set in a large range, the quantity of the inner frame 10 should be increased in this range to divide the mass block 1), and the connection method with the frame 9 is welding or bolted connection; the mass block 1 is a concrete slab poured on the base 2 in a partial range (or the entire range) by using concrete with high gravity density such as counterweight concrete and steel slag concrete. All the other are with embodiment 1.

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PUM

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Abstract

The invention relates to an adjustable swing-type tuned mass damper, which belongs to the technical field of controlling engineering structure vibration. Mass blocks of the damper are connected and fixed in a base and distributed in a local range or a full range of the base. In the length direction of the base, one end of the base is connected with a floor through a hinge support, and the other end of the base is connected with the floor through the damper. Frame connecting pieces and floor connecting pieces are arranged near the middle part of a frame on two sides of the base and in positions corresponding to the floor respectively, and are provided with slipways respectively. Springs are arranged in upper slipways and lower slipways and can be adjustable or fixed in position along the length direction of the base so as to connect the base with the floor. The damper can be arranged on the floor of a common building to obviously reduce floor vibration caused by the walking or other activities of people and other factors, and can play a role in reducing vibration within a wide change range of the actual stress conditions of the floor by setting or regulating the mass of the mass blocks and the positions of the springs.

Description

technical field [0001] The invention is an adjustable pendulum tuned mass damper (Adjustable Pendulum Tuned Mass Damper, referred to as APTMD), which belongs to the technical field of engineering structure vibration control and is mainly used in building structure engineering and civil engineering. Background technique [0002] With the development of society, the span of the building floor structure is increasing continuously, and the adoption of high-strength materials and new structural forms can reduce the thickness of the floor slab. The comfort problem caused by floor vibration caused by activities and other factors has become increasingly prominent, which will bring discomfort to users, reduce environmental quality, and affect work efficiency, which has attracted increasing attention at home and abroad. [0003] There are currently very limited options for reasonable solutions to this problem. In principle, it is reasonable and effective to install a tuned mass dampe...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 赵均赵博尧
Owner BEIJING UNIV OF TECH
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