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Friction-anti-buckling energy dissipation support

A technology of anti-buckling energy consumption and friction energy consumption, applied in the directions of earthquake resistance, building components, building types, etc., can solve the problems of shortening the maintenance and replacement cycle of anti-buckling supports, increasing the maintenance and use costs of the overall structure in the later period, and reducing the later period. Maintenance and operating costs, increased service life, reduced seismic effects

Pending Publication Date: 2019-02-12
YANTAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a new type of structure in order to solve the problem that the energy consumption of buckling brace yielding under wind load or small earthquake will shorten the maintenance and replacement period of buckling brace and increase the later maintenance and use costs of the overall structure member

Method used

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  • Friction-anti-buckling energy dissipation support
  • Friction-anti-buckling energy dissipation support
  • Friction-anti-buckling energy dissipation support

Examples

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Effect test

Embodiment 1

[0040] A preparation and implementation process of a friction-buckling-resistant energy-dissipating support.

[0041] refer to Figure 1 to Figure 5 As shown, the specific implementation process of a friction-buckling-resistant energy-dissipating support with dual functions of frictional energy dissipation and buckling-resistant energy dissipation is carried out in the following steps:

[0042] The first step is the processing of the inner core 100, that is, the processing of the H-shaped steel inner core.

[0043] Such as figure 1 Shown: First, the flange of the H-shaped steel is cut locally, such as figure 1 As shown in (2), the cutting length is determined according to the design stiffness of the friction-anti-buckling energy-dissipating support, and the cutting width is determined according to the design yield force of the friction-anti-buckling energy-dissipating support, and the H-shaped steel inner core 100 is not cut The section cross-section is not less than twice ...

Embodiment 2

[0057] A friction-buckling-resistant energy-dissipating support.

[0058] A friction-buckling-resistant energy-dissipating support, such as Figure 5 As shown, the middle part is the frictional energy dissipation section L1, and the two ends are the anti-buckling energy-dissipating sections L2. 300;

[0059] Such as figure 1 As shown, the inner core 100 is an H-shaped steel that has been processed by partial section flange cutting, and the flange of one end of the uncut section at both ends of the inner core 100 is formed with a number of elliptical long holes, and the end is pasted after sandblasting Friction material, the sandblasting end part is the inner core 110 of the friction energy dissipation section of the inner core 100, and the part flange cutting end part of the inner core 100 is the anti-buckling energy dissipation section of the inner core 100 Core 120;

[0060] The anti-buckling constraint member 200 includes two U-shaped channel steels 201, two cover plate...

Embodiment 3

[0068] A friction-buckling-resistant energy-dissipating support.

[0069] In the anti-buckling energy-dissipating section L2, in order to ensure that the lateral expansion of the inner core 100 due to the Poisson effect can be effectively released when it is under pressure, a friction-anti-buckling energy-dissipating support in this example is consistent with that in Embodiment 2 Further, the thickness of the pad 203 and the height of the U-shaped channel steel 201 keep the gap between the inner core 100 and the anti-buckling constraining member 200 at 1mm-2mm.

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Abstract

The invention relates to a novel structural member, in particular to a friction-anti-buckling energy dissipation support. The friction-anti-buckling energy dissipation support has the dual functions of friction energy dissipation and anti-buckling energy dissipation. A friction energy dissipation section L1 is arranged on the central part of the friction-anti-buckling energy dissipation support, and anti-buckling energy dissipation sections L2 are at arranged both ends of the friction-anti-buckling energy dissipation support. The friction-anti-buckling energy dissipation support comprises twoinner cores 100, two sets of anti-buckling confining members 200 and a set of friction confining member 300. The friction-anti-buckling energy dissipation support solves the problems that the maintenance and replacement cycle of the anti-buckling support is shortened and the later maintenance and use costs of the overall structure are increased caused by the buckling energy dissipation of the anti-buckling support under the conditions of the wind load or small earthquakes.

Description

technical field [0001] The invention relates to a new type of structural member, in particular to an all-steel support with dual functions of frictional energy dissipation and anti-buckling energy dissipation. Background technique [0002] As a metal damper, anti-buckling braces are widely used in building structures due to their stable mechanical properties and excellent energy dissipation capacity. Relying on the elastic-plastic deformation of the steel energy-dissipating inner core, the anti-buckling support can effectively dissipate the external energy acting on the main structure and play the role of a "fuse" for the main structure. The energy consumption of buckling-resistant braces is also the process of plastic damage accumulation in the energy-dissipating inner core. When the plastic damage accumulates to a certain extent, the energy-dissipating inner core of the buckling-resistant braces will inevitably undergo fatigue fracture. In actual situations, building stru...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 李伟
Owner YANTAI UNIV
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