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

Square seismic super structure with cross-shaped cavity

A cruciform and supernova technology, applied in the field of square seismic metastructures, can solve the problem that the natural vibration frequency fluctuation of the structure is very sensitive, and achieve the effect of simple structure

Active Publication Date: 2021-04-16
BEIJING UNIV OF TECH
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TMD can only control the vibration in a certain mode, has narrow-band characteristics, and is very sensitive to the fluctuation of the natural vibration frequency of the structure.

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
  • Square seismic super structure with cross-shaped cavity
  • Square seismic super structure with cross-shaped cavity
  • Square seismic super structure with cross-shaped cavity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The detailed implementation of the present invention will be given below in conjunction with the accompanying drawings.

[0033] exist figure 1 In , the layout of a square seismic metastructure with a cross-shaped cavity designed by the present invention is shown. Segmented ring layout is adopted, and the specific layout is as follows figure 1 shown.

[0034] exist figure 2 and image 3In , a square seismic metastructure unit cell with a cross-shaped cavity is shown, and its components include a concrete pile with a cross-shaped cavity (1), a rubber layer (2), a steel pipe layer (3) and a soil layer (4 ).

[0035] The cross-section of the concrete pile (1) with a cross-shaped cavity is a circle with a cross-shaped through hole in the center. The exterior of the concrete pile (1) is coated with a rubber layer (2) of a certain thickness. The steel pipe layer (3) is coated on the outside of the rubber layer (2).

[0036] Concrete pile (1), rubber layer (2) and ho...

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

PropertyMeasurementUnit
Radiusaaaaaaaaaa
Outer diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Login to View More

Abstract

The invention discloses a square seismic super structure with a cross-shaped cavity. The seismic super structure is formed by extending seismic super structure unit cells in the horizontal plane in two perpendicular directions and designed on the periphery of a building foundation; and each seismic super structure unit cell comprises a concrete pile with the cross-shaped cavity, a rubber layer, a steel pipe layer and a soil layer. The section of each concrete pile is round, and the through long cross-shaped cavity is formed in the middle of the section. The section of each rubber layer and the section of each steel pipe layer are round, the section of soil is square, and a round through hole is formed in the middle of the soil. The seismic super structure is arranged in a segmented mode in the annular direction of a building within a certain range, seismic surface waves within the range of 6-17Hz are attenuated through the band gap characteristic of a periodic structure, and the building is protected against the seismic surface waves and surface vibration damage caused by other reasons.

Description

technical field [0001] The invention relates to a square seismic metastructure with a cross-shaped cavity, which is a new structure with good control and attenuation effects on seismic surface waves. Background technique [0002] There are millions of earthquakes every year all over the world, the vast majority of earthquakes are below magnitude 3.9, but the number of earthquakes above magnitude 5.0 exceeds 1,000. Ground vibrations from even minor earthquakes can have an impact on the structural integrity of buildings. Furthermore, for structures such as nuclear power plants and oil refineries, even small damage can have catastrophic consequences. Seismic waves mainly include surface waves and body waves, among which seismic surface waves cause the greatest damage and travel the farthest. Therefore, it is very meaningful to design a defensive structure to prevent seismic surface waves from harming buildings, especially for long waves with frequencies in the range of 0.1–20...

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): E02D31/08
CPCY02A10/11
Inventor 石南南亢志宽罗方慧王利辉赵卓
Owner BEIJING UNIV OF TECH
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