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Viscoelastic multidimensional vibration damper

A viscoelasticity, shock absorber technology, applied in the field of vibration reduction of marine engineering structures and civil engineering structures, can solve problems such as increasing structural control costs, achieve huge economic and social benefits, reduce operating costs, and enhance structural safety. Effect

Inactive Publication Date: 2009-04-15
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the reliability of viscoelastic dampers for structural vibration control, it is usually necessary to install viscoelastic dampers in the two main axis directions of the structure at the same time, which greatly increases the cost of structural control

Method used

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  • Viscoelastic multidimensional vibration damper
  • Viscoelastic multidimensional vibration damper
  • Viscoelastic multidimensional vibration damper

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Embodiment Construction

[0014] The best implementation mode of the present invention will be described in detail below in combination with technical solutions and accompanying drawings.

[0015] The viscoelastic multi-dimensional shock absorber proposed by the present invention is as Figure 1-Figure 5 shown. Each shock absorber is composed of a shock absorber body and a positioning auxiliary device 1 , and the shock absorber body is composed of an upper connecting steel plate 5 , a viscoelastic material layer 4 and a lower connecting steel plate 3 . The shock absorbers are mounted on the edge beams of the platform deck or structural floor. The specific method is to first set up 4 through smooth holes and 4 groove holes with internal threads on the positioning aid 1, and set up 4 through smooth bolt holes 6 on the upper connecting steel plate 5 and the lower connecting steel plate 3 respectively. Then the upper connecting steel plate 5, the viscoelastic material layer 4 and the lower connecting ste...

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Abstract

The invention relates to a damping control device of an offshore platform, a high-rise building and related structure, belonging to the ocean engineering and civil engineering structure damping technology field. The damping control device is characterized in that an upper-layer connection steel plate 5 and a lower-layer connection steel plate 3 which are used for connecting a viscoelastic material layer 4 are arranged and connected in cross shape, the upper layer connection steel plate 5 is connected with an auxiliary positioning device 1 by bolts 2, the auxiliary positioning device 1 is connected with a structural upper layer beam by the bolts 2, the lower-layer connection steel plate 3 is connected with a structural support 7 by the bolts 2, the viscoelastic material layer 4 is parallel to a structural upper layer plane and can deform along two directions in the plane, and simultaneously, the deformation of the viscoelastic material layer 4 outside the material layer plane can be avoided. The damping control device has the effects and benefits that: the damping device effectively reduces the vibration response of the related structure, greatly reduces the cost of the damper simultaneously, has simple structure and convenient construction, and can produce huge economic benefits and social benefits when being applied in the related structure engineering.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction for marine engineering structures and civil engineering structures, and relates to a shock absorber composed of upper connecting steel plates, viscoelastic materials, lower connecting steel plates and positioning auxiliary components for jacket type offshore platforms, high-rise buildings and related structures design. Background technique [0002] With the development of society and economy, human beings' demand for seabed mineral resources is also increasing. The development of energy in offshore areas can no longer meet human needs. The structure of offshore platforms used for oil and gas development is developing towards a higher and softer trend. For this type of structure, although the strength and stiffness are relatively easy to meet the design requirements, the frequency of its horizontal vibration is very close to the main frequency range of the environmental load. Larger vi...

Claims

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Application Information

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IPC IPC(8): E04B1/98E02B17/00
Inventor 李宏男何晓宇霍林生郭道盛田静
Owner DALIAN UNIV OF TECH
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