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

Shear key damping support capable of realizing stiffness degradation and energy dissipation

A shear key and damping technology, applied in the direction of building types, buildings, building components, etc., can solve the problems of small bearing capacity, complex structure of the limit damper, inconvenient on-site installation, etc., to achieve easy installation, good ductility, The effect of convenient transportation

Active Publication Date: 2019-02-01
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The structure of the current limit damper is relatively complicated, it is not convenient to install on site, and the bearing capacity it can provide is small, and it can only provide stiffness under wind load or small earthquake

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
  • Shear key damping support capable of realizing stiffness degradation and energy dissipation
  • Shear key damping support capable of realizing stiffness degradation and energy dissipation
  • Shear key damping support capable of realizing stiffness degradation and energy dissipation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a shear key damping support that can realize stiffness degradation and energy dissipation is characterized in that it consists of three parts: a jacket constraint support, an embedded sliding support, and an embedded damper. One section of the outer restraint support and the embedded sliding support is respectively bolted or welded to the beam-column joints of the structure, and the overlapping parts are nested and connected with a shear key bolt group, and one end of the embedded damper is connected to the embedded sliding support with bolts or Welding, and the other end is connected to the common node of the jacket restraint support at the beam-column node.

Embodiment 2

[0036] On the technical scheme of embodiment 1, such as figure 2 As shown, the box-shaped steel pipes used for the restraint support of the jacket have holes at one end that is not connected to the beam-column node. The height of the I-shaped steel used for the embedded sliding support is the same as the height of the inner edge of the box-shaped steel pipe. The width of the flange of the I-shaped steel is slightly smaller than the width of the inner edge of the box-shaped steel pipe to prevent the deformation of the steel from hindering sliding. There are holes at one end, and the opening positions are the four flanges of the I-shaped steel, distributed along the I-shaped steel, and the distance of the holes along the width direction of the flange is the same as the distance of the holes on the box-shaped steel pipe along the width direction.

[0037] In order to realize the resistance to shear failure of the shear key bolt group and to be replaceable, the outer restraint su...

Embodiment 3

[0040] Comparing the frame-shear key damping support structure applying the technical solution of Embodiment 2 with the frame-buckling-resistant support structure not applying the present invention, the structural arrangement is as follows Figure 4 As shown, shear key damping braces or buckling-resistant braces are applied to a two-story steel-reinforced concrete megaframe structure. The first floor of the giant frame is 42 meters, and the structure is 84 meters high. The cross-sectional size of the frame column is 2000×2000mm, and the steel content is 5%; the cross-sectional size of the frame beam is 1000×2000mm, and the steel content is 2.15%. Just now they were all Q390, and the concrete grades were all C60.

[0041] One-way static horizontal loading is carried out on the structure, and the internal force at the bottom of the frame column and the development of concrete compression damage at the bottom of the compressed column are extracted. Compression damage factors dev...

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 provides a shear key damping support capable of realizing stiffness degradation and energy dissipation. The shear key damping support provides resist lateral rigidity as an ordinary support under certain axial force, when internal force of the shear key damping support reaches the certain level, stiffness degradation can be achieved, energy is dissipated through a built-in damper, thus system converting of the whole structure is achieved, and the ductility of the structure is facilitated. The shear key damping support capable of realizing stiffness degradation and energy dissipation is composed of two sections of supports connected through a bolt group, and an embedded damper; the two sections of supports are mutually nested and can relatively rub after the bolt group is damaged, and energy dissipation is conducted through the damper connected with one of the supports. According to the shear key damping support, stiffness degradation is achieved through bolt shearing, onthe one hand, the basic period of the whole structure is changed, thus the seismic influence coefficient under a short period earthquake is decreased, on the other hand, the axial compression ratio ofa structural column is greatly decreased, and thus the ductility of the structural column is ensured; and through the construction form of whole segmenting of the support, transportation is convenient, through a bolt connecting form, mounting is convenient, the bolts can be replaced after being damaged, and the requirements of fabricated structures and toughness structures are met.

Description

technical field [0001] The invention belongs to the field of energy dissipation supports used in high-rise structures, and in particular relates to a shear key damping support capable of realizing stiffness degradation and energy dissipation. Background technique [0002] For high-rise and ultra-high-rise buildings, it is very important to control their response under various external effects and ensure that their interstory displacement angle, vertex velocity and other indicators meet the requirements of the code to ensure the normal use and safety of the structure. Therefore, in recent years, a large number of The new structural system has been widely used. [0003] In order to increase the lateral stiffness of the structure in the new mechanism system, a structural form in which the core tube and the frame-support structure work together is often used, and the support in the frame has a considerable influence on the stiffness of the overall structure, so the design of the...

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
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 滕军王宇超李祚华
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com