Prestressed concrete structure, a method of producing this structure, and elements for implementing the method
US4620400A · kind A · utility
11Cited by
14References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1984 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Sep 25, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D2101/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention relates to a prestressed concrete structure which behaves like a hollowed out slab. The structure combines a lattice work structure and a prestress by external cable, maximally optimizing the advantages of these two techniques. The Figure represents a part of the floor of a bridge according to the present invention. The floor comprises two tables 6 and 7 which are joined by a lattice work composed of pyramids P. Prestressing cables 8, 8' and 9' pass between the tables outside the concrete of the bars of the pyramids. The present invention is used for the construction of bridges, roofings and floors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.