Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A buckling-constrained braced damper with symmetrical initial imperfections

A buckling-constrained and supported technology, which is applied in the field of buckling-constrained supported dampers, steel structures or concrete structures, can solve the problems of large additional loads of core units, restrictions on the scope of promotion and use, and high manufacturing precision requirements, achieving flexible layout. Effect of reducing wet work workload and dissipating seismic energy

Active Publication Date: 2018-11-20
SOUTHEAST UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional buckling-restrained bracing usually adopts peripheral constraints composed of steel and concrete, which lead to high manufacturing precision, self-heavy weight and difficult construction, and there is a large additional load on the core unit itself, which greatly limits its promotion and use.

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
  • A buckling-constrained braced damper with symmetrical initial imperfections
  • A buckling-constrained braced damper with symmetrical initial imperfections
  • A buckling-constrained braced damper with symmetrical initial imperfections

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] figure 1 This is a structural schematic diagram of the buckling-constrained braced damper, which consists of buckling section 1 and end-constrained section 2. figure 2 What is shown is that the buckling section 1 is composed of 13 typical symmetrical initial defect units 3 along the axis of the support.

[0022] image 3 Among them, the end restraint section 2 is composed of a square steel plate 5, a T-shaped short steel beam 6, and a connecting plate 7 reserved for components such as beams and columns. The square steel plate 5 is welded at the end of the buckling section 1, and two T-shaped short steel beams 6 Welding connection with square steel plate 5, see square steel plate and T-shaped short steel beam respectively Figure 4 , 5 shown. The connecting plate 7 is sandwiched between two T-shaped short steel beams 6, and the connecting plate 7 and the T-...

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 buckling constraint support type damper with symmetrical initial imperfection. The buckling constraint support type damper is characterized in that the buckling constraint support type damper comprises an end constraint segment and a buckling segment; and the two ends are connected with beams or column components or nodes to form a whole through bolt connection so as to achieve the purpose of improving of the resistant-lateral rigidity of components. The buckling constraint support type damper with the symmetrical initial imperfection is adopted, and due to a small tension-compression unbalanced coefficient, components such as beam columns or beam column nodes can be protected well under the action of an earthquake; and meanwhile, under the action of a medium earthquake, earthquake energy is dissipated and absorbed, and replacement can also be convenient after damage. Compared with traditional buckling constraint support type dampers, according to a manufacturing technology of the buckling constraint support type damper with the symmetrical initial imperfection, the processes of adding a sleeve outside a core energy dissipation component, grouting and the like in the traditional manufacturing process are avoided in the manufacturing technology, so that manufacturing is convenient. The buckling constraint support type damper can be prefabricated and formed in a factory, the quality of the components is ensured, the workload of site operation is reduced, and energy conservation and environment protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of building structures, in particular to a buckling-constrained support type damper with symmetrical initial defects, 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 poor ...

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 Patents(China)
IPC IPC(8): E04B1/98E04H9/02E04H9/14
CPCE04H9/021E04H9/14
Inventor 蔡建国章玉婷周宇航冯健柳杨青
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products