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Method for carrying out seismic resistance on flue gas desulfurization building by adopting damper

A damper and flue gas technology, which is applied in the direction of protective buildings/shelters, buildings, building components, etc., can solve the problems of increased material consumption, rigid seismic design, and insufficient structural ductility, etc., to achieve the required space. Reduce building volume, excellent flame retardant performance and anti-aging performance

Inactive Publication Date: 2019-08-02
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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  • Application Information

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Problems solved by technology

[0002] There are many conventional designs in flue gas desulfurization buildings and structures, and the traditional method of relying on the damage of the structure itself under a large earthquake (that is, relying on ductility) to resist earthquake damage has been adopted, but there are problems such as rigid seismic design and insufficient ductility of the structure itself.
The traditional design method, which takes "no collapse after a big earthquake" as the main goal of structural seismic design, requires a large number of strict seismic structural measures according to the different seismic levels of the building, which not only greatly increases the consumption of materials, but also increases the difficulty of construction accordingly, thus greatly increase the cost

Method used

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  • Method for carrying out seismic resistance on flue gas desulfurization building by adopting damper
  • Method for carrying out seismic resistance on flue gas desulfurization building by adopting damper
  • Method for carrying out seismic resistance on flue gas desulfurization building by adopting damper

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Embodiment 1

[0040] For a flue support, its natural structural frequency is 1.5Hz, the interstory height is about 3.5m, the seismic fortification intensity is 7 degrees, and its interstory displacement angle meets the specification requirements of 1 / 400>1 / 559 under the action of small earthquakes. If it is a conventional method, measures such as increasing the cross-sectional area of ​​the structure, adjusting the overall stiffness or adding concrete slabs will be adopted. However, the present invention intends to use a damper energy dissipation device to achieve the purpose of reducing interlayer displacement. Generally, the interstory displacement when the displacement angle of the frame is 1 / 50 under a large earthquake is taken as the maximum positive and negative travel of the damper. Under the action of a small earthquake, the displacement angle of 1 / 400 can be reached. Add the damper for calculation. When the relative displacement of the damper reaches 6mm, the damping force reaches...

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Abstract

The invention discloses a method for carrying out seismic resistance on a flue gas desulfurization building by adopting a damper. The method comprises the following steps: constructing a column body;fixing the column body on a foundation base; calculating the height of a seismic resistant reverse edge, and building the seismic resistant reverse edge according to the calculated height; calculatingthe support stiffness of a required damper; providing a damper according to the required support stiffness of the damper; arranging the damper between the column body and the seismic resistant reverse edge, wherein the step of calculating the required support stiffness of the damper comprises the following steps: determining the inherent structure frequency, the interlayer height, the seismic resistant and anti-intensity level and the interlayer displacement angle; calculating the interlayer displacement and the interlayer displacement angle when the damper reaches the positioning displacement and the damping force reaches the maximum damping force; and calculating the support stiffness of the damper based on the displacement limit value and the energy consumption effect formula when theinterlayer displacement reaches the basic intensity. The method can effectively reduce energy caused by earthquakes and wind loads, and is high in seismic resistant capacity and efficiency.

Description

technical field [0001] The invention relates to the technical field of shock absorption of flue gas desulfurization structures, in particular to a method for anti-vibration of flue gas desulfurization structures by using a damper. Background technique [0002] There are many conventional designs for flue gas desulfurization buildings and structures. The traditional method of relying on the damage of the structure itself under a large earthquake (that is, relying on ductility) has been adopted to resist earthquake damage. However, there are problems such as rigid seismic design and insufficient ductility of the structure itself. The traditional design method, which takes "no collapse after a big earthquake" as the main goal of structural seismic design, requires a large number of strict seismic structural measures according to the different seismic levels of the building, which not only greatly increases the consumption of materials, but also increases the difficulty of constr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 张振东徐明磊任智强陈莹戴颖楠
Owner BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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