Method for connecting precast segments tendon ducts and resulting structure
AssigneeSoletanche Freyssinet
InventorsPaul Arthur Bottomley, Boris Cousin
Life of this patent
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Abstract
A method for establishing an air-tight connection between post-tensioning tendon ducts of two consecutive precast segments of a structure, each segment being cast with a recess opening out on a jointing face of the segment leaving an access to ends of the ducts. The method including connecting pairs of respective duct ends of the two consecutive segments together, and pouring a sealing material into the recesses of the two consecutive segments around the duct ends while preventing the material to enter the internal space of the ducts, thus forming an air-tight connection at the junction of ducts.
Claims15
A method for establishing an air-tight connection between post-tensioning tendon ducts of two consecutive precast segments of a structure, each segment being cast with a recess opening out on a jointing face of the segment leaving an access to ends of the ducts, the method comprising:
- a) connecting pairs of respective duct ends of the two consecutive segments together, and
- b) pouring a sealing material into the recesses of the two consecutive segments around the duct ends while preventing the material to enter the internal space of the ducts, thus forming an air-tight connection at the junction of ducts.
A method for casting a segment, comprising:
- c) Positioning in a mould:
- ducts for the passage of tensioning tendons,
- inserts for making recesses into which the ends of the ducts extend,
- reinforcing bars, and
- d) pouring concrete in the mould.
Dependencies are inferred from the claim text.