Constant-resistance and large deformation anchor cable and constant-resistance device
US9797248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2011 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Aug 18, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A constant-resistance and large deformation anchor cable and a constant-resistance device are provided. The constant-resistance and large deformation anchor cable comprises cables (7), an anchoring device (13), a loading plate (12) and clipping sheets (4). The upper end of cables (7) is fixed on the anchoring device (13) and the loading plate (12) by clipping sheets (4). The constant-resistance and large deformation anchor cable also comprises a constant-resistance device, and the constant-resistance device comprises a sleeve (8) and a constant-resistance body (5). The sleeve (8) is a straight tube. The constant-resistance body is conical, and the diameter of the lower end of the constant-resistance body is bigger than the diameter of the upper end of the constant-resistance body. The inner diameter of the sleeve (8) is smaller than the diameter of the lower end of the constant-resistance body. A cuneiform part is arranged on inner wall of the lower end of the sleeve (8), and the constant-resistance body (5) is arranged on the cuneiform part. The strength of constant-resistance body (5) is higher than the strength of the sleeve (8), thus the sleeve (8) generates plastic deforming a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.