Steel-plate-encased precast concrete column foot joint and construction method therefor
US11028574B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Dec 10, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H9/025
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The column-base joint includes a prefabricated-reinforced-concrete column and a reinforced-concrete foundation, and further includes a coating-steel-plate sleeve that is integrally prefabricated with the concrete column and encloses an exterior of a column base. A gap is between a bottom end of the coating-steel-plate sleeve and an upper surface of the foundation. An outside of the gap is provided with a plugging material. The joint further includes an annular rib plate all of whose edges are horizontally and seamlessly connected to an inner wall of the coating-steel-plate sleeve and whose middle portion is provided with a rib-plate opening. The annular rib plate is provided with a sleeve opening that matches with the grouting sleeve device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.