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US 9,869,091 B2Granted
Pocket cap for post-tensioned concrete member
OwnerFelix Sorkininventor
Life of this patent
Estimating the term…
Abstract
A system for post tensioning a concrete member is disclosed. The system may include an anchor body, and a strand, the strand inserted through the anchor body. The strand may have a strand end and an outer diameter. The system may also include a pocket cap, the pocket cap positioned around the strand. The pocket cap may have a cylindrical interior wall, the cylindrical interior wall having a pocket cap diameter corresponding to the outer diameter of the strand.
Claims25
A system for post tensioning a concrete member comprising:
- an anchor body;
- a pocket former coupled to the anchor body, the pocket former having a cylindrical section and a frustoconical section;
- a strand, the strand inserted through the anchor body, the strand having a strand end and an outer diameter;
- a pocket cap, the pocket cap configured to be positioned around the strand and to engage the cylindrical section of a cavity formed by the pocket former using friction or press fit and, the pocket cap having a cylindrical interior wall.
1 more element
A method of forming a post-tensioned concrete member comprising:
- positioning a post-tensioning tendon within a concrete form, the post-tensioning tendon including a tension member, fixed anchor, and a stressing end anchor, the tension member including a strand;
- positioning a pocket former between the stressing end anchor and the concrete form, the pocket former comprising a keyway former and being coupled to the stressing end anchor, the stressing end anchor having a stressing end anchor body;
- pouring concrete into the concrete form thereby forming a concrete member;
- encasing the post-tensioning tendon and pocket former in the concrete member;
- forming a cavity in the concrete by removing the pocket former, the cavity corresponding to the outer shape of the pocket former, the cavity having a cavity surface;
- removing the keyway former from the concrete member leaving a keyway in the cavity corresponding to the outer shape of the keyway former, the keyway having a keyway surface;
- positioning a pocket cap around the strand;
- and
- coupling the pocket cap to the cavity surface by coupling an extension of the pocket cap to the keyway surface.
6 more elements
A method of forming a post-tensioned concrete member comprising:
- positioning a post-tensioning tendon within a concrete form, the post-tensioning tendon including a tension member, fixed anchor, and a stressing end anchor, the tension member including a strand;
- positioning a pocket former between the stressing end anchor and the concrete form, die pocket former comprising a keyway former and being coupled to the stressing end anchor, the stressing end anchor having a stressing end anchor body;
- pouring concrete into the concrete form thereby forming a concrete member;
- encasing the post-tensioning tendon and pocket former in the concrete member;
- forming a cavity in the concrete by removing the pocket former, the cavity corresponding to the outer shape of the pocket former, the cavity having a cavity surface;
- removing the keyway former from the concrete member leaving a keyway in the cavity corresponding to the outer shape of the keyway former, the keyway having a keyway surface;
- coupling a pocket cap to the cavity surface by coupling an extension of the pocket cap to the keyway surface;
- wherein the cavity has a cylindrical section and a frustoconical section and the pocket cap is positioned within the cylindrical section using friction or press fit.
5 more elements
A method of forming a post-tensioned concrete member comprising:
- positioning a post-tensioning tendon within a concrete form, the post-tensioning tendon including a tension member, fixed anchor, and a stressing end anchor, the tension member including a strand;
- positioning a pocket former between the stressing end anchor and the concrete form, the pocket former comprising a keyway former and being coupled to the stressing end anchor, the stressing end anchor having a stressing end anchor body;
- pouring concrete into the concrete form thereby forming a concrete member;
- encasing the post-tensioning tendon and pocket former in the concrete member;
- forming a cavity in the concrete by removing the pocket former, the cavity corresponding to the outer shape of the pocket former, the cavity having a cavity surface;
- removing the keyway former from the concrete member leaving a keyway in the cavity corresponding to the outer shape of the keyway former, the keyway having a keyway surface;
- and
- coupling a pocket cap to the cavity surface and coupling an extension of the pocket cap to the keyway surface, wherein the pocket cap comprises a cylindrical interior wall and the method further comprises positioning one or more seals between the cylindrical interior wall and the strand.
5 more elements
Dependencies are inferred from the claim text.