Method for reinforcing concrete-filled steel tubular column with outer concrete-filled steel tube
US11746545B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2023 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jan 17, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G23/0225
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed are a method and equipment for reinforcing a concrete-filled steel tubular column with an outer concrete-filled steel tube. The method includes following steps: step 1, grinding and derusting an outer wall of a concrete-filled steel tubular column to be reinforced by an auxiliary device; step 2, welding two prefabricated semi-rectangular steel plates in advance, forming a complete rectangular steel tube with the two semi-rectangular steel plates and sleeving the rectangular steel tube outside the concrete-filled steel tubular column to be reinforced; and step 3, filling self-compacting concrete between the outer wall of the concrete-filled steel tubular column to be reinforced and an inner wall of the rectangular steel tube to complete a reinforcement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.