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A Buckling-Inducing Brace with Ring-shaped Pineapple-shaped Inducing Units at the End

A circular and pineapple technology, applied in the direction of building types, buildings, building components, etc., can solve the problems of unfavorable plastic hinges and small design flexibility, so as to simplify the manufacturing process, reduce the workload of wet work, and flexibly arrange Effect

Active Publication Date: 2018-09-14
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On June 1, 2016, the applicant proposed an energy-dissipative buckling-constrained support with symmetrical initial defect units at the end (application number 201610383430.5) and a buckling-controlled support with diamond-shaped energy-dissipating units at the end (application No. 201610380804.8) has a fixed geometric configuration and little design flexibility
Moreover, the structure and plate thickness of the energy-dissipating units in the above-mentioned support at the crease are consistent with those at the non-crease, which is not conducive to the generation of plastic hinges at the crease.

Method used

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  • A Buckling-Inducing Brace with Ring-shaped Pineapple-shaped Inducing Units at the End
  • A Buckling-Inducing Brace with Ring-shaped Pineapple-shaped Inducing Units at the End
  • A Buckling-Inducing Brace with Ring-shaped Pineapple-shaped Inducing Units at the End

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] figure 1 is a structural schematic diagram of a buckling-induced brace with a ring-shaped pineapple-shaped induction element at the end, which is composed of an end-restrained section 1, an energy-dissipating section 2, and a straight support section 3. The end-constrained section 1 is fixed at the beam-column node and the Between the sections 2, the energy dissipation section 2 is fixed at both ends of the supporting straight section 3.

[0026] Such as figure 2 As shown, the end restraint section 1 is composed of a quadrilateral steel plate 4, a T-shaped short steel beam 5, and a connecting plate 6 reserved for components such as beams and columns. The quadrilateral steel plate 4 is welded to the end of the energy dissipation section 2. Two T-shaped short steel The beam 5 is welded to the quadrilateral steel plate 4, and the quadrilateral steel plate 4 and ...

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PUM

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Abstract

The invention discloses a buckling inducing brace with the ends provided with annular pineapple-type induction units. The buckling inducing brace with the ends provided with the annular pineapple-type induction units comprises retraining sections and energy dissipation sections and further comprises a brace straight section. The energy dissipation sections are arranged at the two ends of the brace straight section. Each energy dissipation section is composed of at least one annular pineapple-type induction unit in the axial direction of the brace. Each annular pineapple-type induction unit is a space body with a regular polygon section, wherein the space body is formed in the manner that m annular pineapple-type induction subunits are annularly and sequentially arranged. Each annular pineapple-type induction subunit is a space body which is formed by six isosceles triangle plates located in the same plane through folding. The buckling inducing brace with the ends provided with the annular pineapple-type induction units keeps elasticity under the action of a small earthquake; and under the action of an intermediate earthquake or a large earthquake, the buckling inducing brace enters a yielding stage, and the buckling inducing brace can achieve the effect of a damper through the good hysteretic energy dissipation capacity. Compared with a traditional buckling restraining brace, the buckling inducing brace with the ends provided with the annular pineapple-type induction units lightens the on-site construction workload, saves energy and is environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a buckling-inducing support with circumferential pineapple-shaped inducing units at the end, which is suitable for steel structures or concrete structures with buckling-constrained supports. Background technique [0002] During the use of steel structures or reinforced concrete structures, ordinary supports will buckle under compression. When the supports buckle under compression, the stiffness and bearing capacity will decrease sharply. Under the action of earthquake or wind, the internal force of the support changes back and forth under the two states of compression and tension. When the support gradually changes from the buckling state to the tension state, the internal force and stiffness of the support are close to zero. Therefore, the hysteretic performance of ordinary supports is poor under repeated loads. In order to solve the problem of buckling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98
CPCE04H9/021
Inventor 蔡建国刘鹏冯健周宇航柳杨青马瑞君
Owner SOUTHEAST UNIV
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