Connection structure, concrete-encased concrete-filled steel tube column and construction method
US11142911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jun 15, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/5875
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention discloses a concrete-encased concrete-filled steel tube (CFST) column connection structure, a concrete-encased CFST column comprising such a connection structure, and a construction method for constructing such a concrete-encased CFST column, in the technical field of connection of concrete-encased CFST columns. Exposed steel tubes at the connection ends of two split concrete-encased CFST columns are connected through a core positioning sleeve of a concrete-encased CFST column connection structure. Exposed longitudinal bars of the two split concrete-encased CFST columns are connected through longitudinal bar sleeves of the concrete-encased CFST column connection structure. A space between the two split concrete-encased CFST columns is sealed by an external sealing sleeve of the concrete-encased CFST column connection structure; and the space in the external sealing sleeve and around the first and second exposed steel tubes is filled with a concrete slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.