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Buckling induction support with ends provided with oblique spiral induction units

A spiral and oblique technology, applied in the direction of building types, building components, earthquake resistance, etc., can solve the problems of unfavorable plastic hinges and small design flexibility, and achieve simplified manufacturing process, flexible layout, good energy consumption and Effect of Axial Load Capacity

Active Publication Date: 2017-05-10
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 geometry 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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  • Buckling induction support with ends provided with oblique spiral induction units
  • Buckling induction support with ends provided with oblique spiral induction units
  • Buckling induction support with ends provided with oblique spiral induction units

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] figure 1 It is a structural schematic diagram of a buckling-induced brace with oblique helical induction elements at the end, which is composed of end restraint section 1, energy dissipation section 2 and brace straight section 3, and end restraint section 1 is fixed at the beam-column node and the energy dissipation section Between the sections 2, the energy dissipation section 2 is fixed at both ends of the supporting straight section 3.

[0027] Such as figure 2 As shown, the end restraint section 1 is composed of a square steel plate 4, a T-shaped short steel beam 5, and a connecting plate 6 reserved for components such as beams and columns. The square 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 square steel plate 4, and the square steel plate 4 and the T-shaped short steel b...

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Abstract

The invention discloses a buckling induction support with the ends provided with oblique spiral induction units. The buckling induction support comprises constraining sections, energy consumption sections and a supporting straight section. The energy consumption sections are arranged at the two ends of the supporting straight section and each composed of at least one oblique spiral induction unit in the axial direction of the support. Each oblique spiral induction unit is a space body formed by sequentially arranging m oblique spiral induction sub units in the oblique direction, and the section of each space body is a spiral line. Each oblique spiral induction sub unit is a space structure formed by folding two triangular plates in the plane. The elasticity of the buckling induction support is maintained under small earthquake action, enters a buckling stage under middle earthquake or large earthquake action, and can further achieve the effect of a damper through the good hysteric energy consumption performance of the buckling induction support. Compared with traditional buckling constraining supports, by adoption of the buckling induction support, the site construction operation workload is decreased, and energy saving and environmental protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of building structures, in particular to a buckling-inducing support with oblique spiral-type 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 under compression and po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021
Inventor 蔡建国冯健刘鹏周宇航柳杨青马瑞君
Owner SOUTHEAST UNIV
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