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A shock-isolation ditch with a viscoelastic shock-isolation device and a shock-isolation method thereof

A viscoelasticity and isolation technology, applied in the field of isolation and shock absorption, can solve the problem of insufficient space, and achieve the effect of strong energy dissipation capacity, excellent isolation and shock absorption effect, and maintenance stability.

Active Publication Date: 2020-12-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual engineering, sometimes due to the limitation of site conditions, there is not enough space between the protected building and the vibration source. At this time, the seismic isolation ditch is no longer applicable.

Method used

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  • A shock-isolation ditch with a viscoelastic shock-isolation device and a shock-isolation method thereof
  • A shock-isolation ditch with a viscoelastic shock-isolation device and a shock-isolation method thereof
  • A shock-isolation ditch with a viscoelastic shock-isolation device and a shock-isolation method thereof

Examples

Experimental program
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Embodiment

[0055] The cross-sectional shape of the shock-absorbing trench is a rectangular trench. After the construction of the piles on both sides, excavation along the outer edge of the protected building facing the vibration source, the excavation depth must be greater than twice the buried depth of the protected building foundation. The length should be greater than the length of the outer edge of the protected building near the vibration source. During construction, it is necessary to over-excavate the depth of 20~30cm for setting the waterproof and drainage layer.

[0056] The supporting rows of piles are reinforced concrete cast-in-place piles with a circular cross-section, buried in the soil to a certain depth to maintain the stability of the soil on both sides after the trench is excavated.

[0057] The support row piles are arranged symmetrically on both sides of the rectangular trench along the length direction of the isolation trench, and the spacing between the support row p...

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Abstract

The invention discloses a shock insulation ditch additionally provided with a viscoelastic shock insulating and reducing device and a shock insulation method based on the shock insulation ditch. The shock insulation ditch comprises a shock insulation ditch groove, supporting campsheds and campshed shock reducing and supporting units. While the supporting campsheds support soil, spreading of vibration is isolated by the supporting campsheds and the shock insulation ditch groove. The campshed shock reducing and supporting units have the characteristic of being variable in rigidity, a weak-rigidity softening layer is formed in the shock insulation ditch groove, spreading of vibration on the shock insulation ditch towards a protected building is isolated, an adopted viscoelastic shock reducingpad has high energy consuming capacity, and energy of vibration can be greatly consumed. When the supporting structure greatly deforms, the campshed shock reducing and supporting units can provide enough supporting force due to the fast increase of the rigidity to prevent the unstability of the supporting structure, and the safety of the shock insulation ditch is guaranteed. In addition, elementsin viscoelastic shock insulating and reducing supports have a replaceable characteristic, and the long-term use performance is guaranteed.

Description

technical field [0001] The invention relates to a vibration isolation technology, in particular to a vibration isolation ditch added with a viscoelastic vibration isolation device and a vibration isolation method. [0002] technical background [0003] Vibration is ubiquitous in nature and human production and life. In addition to more severe earthquakes, various types of man-made vibrations caused by railway and road transportation, large-scale machinery operation, and dynamic piling during construction will also affect the safety and use of building structures. Sexuality is adversely affected. The continuous vibration of the building structure will affect the comfort of the building. In addition, the old building structure often has many internal defects due to its age. Even a slight vibration may cause serious damage to the structure or even collapse. [0004] For this kind of relatively small but frequent vibration, it is difficult to achieve a good control effect with t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/08E02D27/34
CPCE02D27/34E02D31/08
Inventor 徐赵东胡钟玮黄娥梁淑一
Owner SOUTHEAST UNIV
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