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Multi-stage energy dissipation device for seismic resistance and vibration reduction of building structures

A technology for building structures and energy-consuming devices, which is applied to building components, buildings, building types, etc., to achieve graded vibration reduction, earthquake resistance, and controllable stiffness

Active Publication Date: 2020-04-21
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of engineering structures in terms of anti-vibration and implement multi-stage energy consumption performance, the present invention proposes a multi-stage energy consumption device for anti-seismic and vibration reduction of building structures

Method used

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  • Multi-stage energy dissipation device for seismic resistance and vibration reduction of building structures
  • Multi-stage energy dissipation device for seismic resistance and vibration reduction of building structures
  • Multi-stage energy dissipation device for seismic resistance and vibration reduction of building structures

Examples

Experimental program
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Effect test

Embodiment 1

[0023] like figure 1 , 2 , shown in 3 and 4, a multi-stage energy dissipation device for anti-seismic and vibration reduction of a building structure, comprising a base (7), a skeleton unit (5) and a support plate (1), characterized in that: the several skeleton units (5) form a steel skeleton, the lower part of the steel skeleton is provided with a base (7), the skeleton unit (5) is composed of six plates (4) of the same form, and the inside of the plate is a ring (3), Four equal support rods (2) protrude tangentially at equal intervals from the outside, the inside of the skeleton unit (4) is filled with high damping rubber (6), and a support plate (1) is arranged on the upper part of the steel skeleton.

[0024] The upper surface of the base (7) is provided with an upper groove (8), the steel frame is placed in the upper groove (8), and the base (7) is welded under the steel frame.

[0025] The lower surface of the support plate (1) is provided with a lower groove (9), the...

Embodiment 2

[0033] Rigidity adjustment and programming control can be realized by adjusting the internal and external radius and thickness of the inner ring (3) of the plate (4), the size of the included angle of the support rod (2) and the number of skeleton units (5).

[0034] When the outer steel skeleton is subjected to axial pressure, the skeleton unit (5) will be torsionally deformed, reflecting the compression-torsion coupling effect. like Figure 5 , 6 As shown, the stiffness of the system is designed by adjusting parameters such as the radius, width, and unit cell size of the ring to achieve controllable stiffness.

[0035] The data simulation analysis of the energy-consuming device is carried out. Due to the periodic characteristics of the system, a skeleton unit (5) of the device is used for pseudo-static numerical analysis. The lower part of the skeleton unit (5) is fixed, and the axial cyclic displacement is applied to the upper part of the skeleton unit (5) through displac...

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Abstract

The invention discloses a multi-stage energy dissipation device for seismic resistance and vibration reduction of building structures. The multi-stage energy dissipation device comprises a base, framework units and a supporting plate, the multi-stage energy dissipation device is characterized in that a steel framework of the device is formed by the framework units, each framework unit is composedof six plates in the same form, the interior of each plate is composed of a circular ring, the exterior of each plate tangentially extends out of the corresponding plate at equal intervals to form four equal supporting rods, the interior of the steel framework is filled with high-damping rubber, and the upper portion of the steel framework is sleeved with a supporting plate. The a multi-stage energy dissipation device is designed based on the composite performance of the negative poisson ratio steel framework and the high-damping rubber, is a damping-adjustable vibration isolation and seismicresistance system, is controllable in rigidity and adjustable in damping, and can facilitate multistage energy consumption design according to the structural dynamics performance.

Description

technical field [0001] The invention relates to the field of structure vibration control, in particular to a multi-stage energy consumption device for anti-seismic and vibration-reduction of building structures. Background technique [0002] Structural vibration has gradually become a key issue in the structural design of bridges, industrial and civil buildings. Traffic loads generate vertical vibrations on bridge structures, and seismic loads generate horizontal vibrations in building structures, which can lead to premature damage and collapse of structures. Seismic loads, in particular, are unpredictable. my country's "Detailed Rules for Seismic Design of Highway Bridges" divides design earthquakes into two grades: E1 earthquakes with a short return period on the engineering site and E2 earthquakes with a long return period on the engineering site; The aseismic design principle of classified fortifications that can be repaired and will not collapse after a large earthquak...

Claims

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Application Information

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IPC IPC(8): E01D19/00E04B1/98E04H9/02
CPCE01D19/00E04B1/98E04H9/021
Inventor 刘群峰朱诗敏郭朝阳李箫霆杨雅茗
Owner XIAN UNIV OF SCI & TECH
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