Arrangement of prestressing tendons in a pressure tunnel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 19, 1993
Grant Date -
N/A
app pub date -
Aug 13, 1991
filing date -
Aug 24, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Each of the prestressing tendons (3, 4, 18) in a pressure tunnel is made up of a bundle of monostrands (21) held together. Each of the monostrands (21) of one of the prestressing tendons is distanced from adjacent monostrands by the introduction of spacing means (22, 22', 22', 22'') at more or less regular intervals along the length of the prestressing tendon. Distributed along the length of and over the circumference of the pressure tunnel are disposed prestressing tendon supports (9) directed essentially towards the center of the pressure tunnel. Several prestressing tendons (3, 4, 18) are attachable to each of the prestressing tendon supports (9) adjacent to or stacked on top of each other. In doing so, each prestressing tendon (3, 4, 18) is kept spaced from adjacent tendons. The prestressing tendon arrangement ensures that after concreting the pressure tunnel, each of the monostrands is completely embedded in concrete. Each monostrand may be individually prestressed with a relatively small jack without there being any risk of damaging the monostrand in question or adjacent monostrands as result of stressing. The arrangement allows a relatively large number of monostrands to be disposed in any one cross-section and complete corrossion protection is guaranteed for each of the monostrands.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully