Once variable cross-section cross buckling-restrained bracing member

A technology of supporting components and buckling constraints, which is applied to building components, earthquake resistance, etc., can solve the problems of unsuitable steel materials and high technical requirements

Inactive Publication Date: 2009-06-24
TONGJI UNIV
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The core materials of the buckling-constrained support structures used in the United States and Japan are all made of low-yield steel, which requires batches of high-quality low-yield point steel, high technical requirements, Q235 and above carbon steel and low-alloy steel with higher strength, and Q195 steel is not applicable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Once variable cross-section cross buckling-restrained bracing member
  • Once variable cross-section cross buckling-restrained bracing member
  • Once variable cross-section cross buckling-restrained bracing member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0054] see Figure 1-5 , as can be seen from the figure, the present invention mainly includes: a core part, a support end node, a sleeve part, wherein the core part is welded by a core plate 1 (such as figure 2 , 5 shown), the support end node part is composed of a gusset plate 4 directly welded to the core plate, and the sleeve part is composed of a steel sleeve 2 and a filling material (such as grouted concrete 3) (such as image 3 , 4 shown).

[0055] Construction of the present invention:

[0056] 1. The support adopts a structural form in which the end node 4 and the core part 1 are welded into a whole. The entire core plate has only one variable cross-section, and the steel with high strength is used at the end, which not only ensures that the core part When fully entering the plastic state, the support end nodes still maintain elasticity, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a cross-shaped buckling constraint support component with a primary variable cross-section. The support component comprises a core material part, a support end node and a sleeve part, wherein, the core material part is formed by welded core plates, the support end node part consists of gusset plates which are directly welded with the core plates, and the sleeve part consists of a square or quadrate steel sleeve and an internal filling material; a delaminating material is arranged between the internal filling material of the steel sleeve and the core plates. The invention also discloses a manufacturing method of the improved buckling constraint support component. The buckling constraint support has very good hysteresis characteristic and energy dissipation performance, is a very effective energy dissipation component, can achieve 1 / 80 deformation to satisfy 1 / 50 floor displacement deformation requirement of an architecture under an infrequent earthquake action and accumulates plastic deformation greater than 200 times of yielding displacement; the buckling constraint support has stable hysteresis characteristic and good low-cycle fatigue characteristic, can greatly improve seismic capability of the architecture, greatly reduce cost of the support and lay a foundation for popularization and application.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to a buckling constrained support member. Background technique [0002] Buckling-restrained brace, also known as unbonded brace, is a new type of anti-seismic energy-dissipating member with superior performance. It is an energy-dissipating bracing member that can yield under both tension and compression. It improves the performance of traditional bracing under compression. The disadvantage of buckling occurs, which improves the seismic performance of the structure. [0003] Once the buckling-restrained brace was introduced, it was unanimously recognized by structural seismic experts and structural engineers around the world. At present, more than 300 buildings in Japan have adopted buckling restraint braces, and the speed of popularization and application in other developed countries in earthquake zones is very fast. More than 50 buildings that have been built or are under c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98
Inventor 李国强陈素文胡宝琳郭小康孙飞飞
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap