WO1995020083B1 - Post-tensioning anchor head assembly - Google Patents
Post-tensioning anchor head assemblyInfo
- Publication number
- WO1995020083B1 WO1995020083B1 PCT/EP1995/000117 EP9500117W WO9520083B1 WO 1995020083 B1 WO1995020083 B1 WO 1995020083B1 EP 9500117 W EP9500117 W EP 9500117W WO 9520083 B1 WO9520083 B1 WO 9520083B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchor head
- cavities
- head assembly
- section
- exterior
- Prior art date
Links
- 230000000875 corresponding Effects 0.000 claims abstract 10
- 210000002435 Tendons Anatomy 0.000 claims abstract 6
- 241000282619 Hylobates lar Species 0.000 claims 1
- 230000001419 dependent Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 229910001018 Cast iron Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Abstract
An anchor head assembly (1) comprising a main body member (2) with a plurality of cavities (5) having the shape of a frustum of a cone in an exterior section (3) and a corresponding number of cavities (6) which may also have the shape of a frustum of a cone in an interior section (4). The cavities are orientated such that the narrow ends of those in the exterior section face the narrow ends of those in the interior section. The interior section (4) is dome-shaped so as to facilitate the fabrication of the cavities therein and to facilitate the splaying of strands or tendons as they are passed into and through the cavities in both the interior and exterior sections. The dome-shaped section also facilitates self-centering of the anchor head asembly in a bearing plate. Wedge members (23) are used for capturing the strands and tendons in the cavities in the exterior section of the anchor head assembly. A hexagonally shaped exterior section (9) and the dome-shaped interior section also provides for a lighter weight anchor head than has been heretofore available and the strength of the anchor head is improved using austempered cast iron fabrication techniques.
Claims
1. An anchor head assembly comprising: a main body member having an exterior section with a plurality of cavities having the shape of a frustum of a cone and an interior section with an equal number of corresponding cavities having the shape of a frustum of a cone wherein the narrow ends of corresponding ones of each of said cavities in said exterior and interior sections are located in the interior of said exterior and interior sections in communication with and facing each other; means in each of said plurality of cavities in said exterior section for capturing a strand or tendon after said strand or tendon has been passed through a corresponding one of said cavities in said interior section; and said exterior section comprises a polygonal shaped lateral outer surface area.
2. An anchor head assembly according to claim 1 wherein said inte¬ rior section comprises an annular planar surface in the center of which is lo¬ cated a truncated dome-shaped surface.
3. An anchor head assembly according to claim 2 wherein said trun¬ cated dome-shaped surface slopes downwardly to said annular planar surface at a predetermined angle 02.
4. An anchor head assembly comprising: a main body member having an exterior section with a plurality of cavities having the shape of a frustum of a cone and an interior section having a dome-shaped surface and an equal number of corresponding cavities, corre- sponding ones of said cavities in said exterior and interior sections being lo¬ cated in communication with each other; means in each of said plurality of cavities in said exterior section for capturing a strand or tendon after said strand or tendon has been passed through a corresponding one of said cavities in said interior section; and said exterior section comprises a polygonal shaped lateral outer surface area.
5. An anchor head assembly according to claim 4 wherein said inte¬ rior section comprises an annular planar surface and said dome-shaped sur- face is located in the center of and said annular planar surface.
6. An anchor head assembly according to claim 5 wherein said dome-shaped surface in the center of said annular planar surface comprises a surface having the shape of a frustum of a cone.
7. An anchor head assembly according to claim 5 wherein said sur- face having the shape of a frustum of a cone slopes downwardly to said annu¬ lar planar surface at a predetermined angle 02.
8. An anchor head assembly according to claim 4 wherein each of said cavities in said interior section has the shape of a frustum of a cone, the narrow ends of which are in communication with and face corresponding cavi¬ ties in said exterior section.
9. An anchor head assembly according to claim 3 or 7 wherein said predetermined angle 02 is approximately 30 degrees.
10. An anchor head assembly according to claim 2 or 5 wherein the periphery of said annular planar surface comprises a shoulder having a wall which slopes inwardly toward said interior section at a predetermined angle 03.
11. An anchor head assembly according to claim 10 wherein said predetermined angle 03 comprises approximately 45 degrees.
12. An anchor head assembly according to claim 1 or 8 wherein the walls of said cavities in said interior and exterior sections diverge at a prede¬ termined angle 1 relative to a longitudinal axis extending through the center thereof.
13. An anchor head assembly according to claim 12 wherein said predetermined angle 01 is approximately 7 degrees.
14. An anchor head assembly according to claim 1 or 4 comprising a center section between said interior and exterior sections in which there is lo- cated a cavity having the shape of a frustum of a cone between and in com¬ munication with corresponding ones of said cavities in each of said interior and exterior sections.
15. An anchor head assembly according to claim 14 wherein the nar¬ row end and the wide end of each of said cavities in said center section faces a corresponding cavity in said exterior and interior sections, respectively.
16. An anchor head assembly according to claim 1 or 4 wherein said polygonal shaped lateral outer surface area is a hexagonal shaped lateral outer surface area.
STATEMENT UNDER ARTICLE 19
In order to distinguish over the cited prior art, independent claims 1 and 4 newly filed have been restricted with respect to original claims 1 and 12 by the feature according to which the exterior section of the anchor head comprises a polygonal shaped lateral outer surface area. In comparison with the anchor heads known in the prior art, which usually have circular shaped lateral outer surface areas, this newly claimed feature, due to the absence of superfluous material, permits a reduction of weight to be obtained..
The dependent claims have been regrouped, combined, adapted to the new independent claims, partly clarified and amended.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950703987A KR100276470B1 (en) | 1994-01-19 | 1995-01-12 | Post-tensioning anchor head assembly |
| DE69519131T DE69519131T2 (en) | 1994-01-19 | 1995-01-12 | ANCHOR HEAD DEVICE FOR TENSIONING |
| BR9505826A BR9505826A (en) | 1994-01-19 | 1995-01-12 | Anchor head set |
| AT95906935T ATE197078T1 (en) | 1994-01-19 | 1995-01-12 | ANCHOR HEAD DEVICE FOR RE-TENSIONING |
| AU15339/95A AU681003B2 (en) | 1994-01-19 | 1995-01-12 | Post-tensioning anchor head assembly |
| JP51932395A JP3578458B2 (en) | 1994-01-19 | 1995-01-12 | Anchor head device for post tension |
| EP95906935A EP0692054B1 (en) | 1994-01-19 | 1995-01-12 | Post-tensioning anchor head assembly |
| HK98112435A HK1011397A1 (en) | 1994-01-19 | 1998-11-27 | Post-tensioning anchor head assembly |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/183,526 US5596854A (en) | 1994-01-19 | 1994-01-19 | Post-tensioning anchor head assembly |
| US183,526 | 1994-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1995020083A1 WO1995020083A1 (en) | 1995-07-27 |
| WO1995020083B1 true WO1995020083B1 (en) | 1995-08-17 |
Family
ID=22673179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1995/000117 WO1995020083A1 (en) | 1994-01-19 | 1995-01-12 | Post-tensioning anchor head assembly |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5596854A (en) |
| EP (1) | EP0692054B1 (en) |
| JP (1) | JP3578458B2 (en) |
| KR (1) | KR100276470B1 (en) |
| CN (1) | CN1115452C (en) |
| AT (1) | ATE197078T1 (en) |
| AU (1) | AU681003B2 (en) |
| BR (1) | BR9505826A (en) |
| CA (1) | CA2158573A1 (en) |
| CZ (1) | CZ270195A3 (en) |
| DE (1) | DE69519131T2 (en) |
| ES (1) | ES2152385T3 (en) |
| HK (1) | HK1011397A1 (en) |
| WO (1) | WO1995020083A1 (en) |
| ZA (1) | ZA95172B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6481102B1 (en) | 1999-12-02 | 2002-11-19 | Tommie D. Hill | Attachment devices, systems, and methods for a tendon, rod, or other elongated member |
| DE102005010957A1 (en) * | 2005-03-10 | 2006-09-14 | Dywidag-Systems International Gmbh | Method and arrangement for tensioning a step anchor |
| US7597505B2 (en) * | 2006-03-28 | 2009-10-06 | Price Herbert S | Roof bolt plate |
| ES2697999T3 (en) * | 2009-12-23 | 2019-01-30 | Geotech Pty Ltd | An anchoring system |
| US9315998B1 (en) * | 2011-02-14 | 2016-04-19 | Aral Wilson LLC | Cable lock-off block for repairing a plurality of post-tensioned tendons |
| CN103192452B (en) * | 2012-01-04 | 2015-09-02 | 赵正义 | The termination protective construction of unbounded post-tensioned prestressed concrete structure |
| US9982434B1 (en) * | 2015-06-04 | 2018-05-29 | Structural Technologies Ip, Llc | Encapsulated anchor devices, systems, and methods |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB775744A (en) * | 1955-03-15 | 1957-05-29 | P S C Equipment Ltd | A new or improved means for securing wires or rods in the stressed condition |
| FR2077729B1 (en) * | 1970-02-10 | 1974-03-01 | Stup Procedes Freyssinet | |
| FR2122302B2 (en) * | 1971-01-19 | 1974-11-08 | Stup Procedes Freyssinet | |
| CH550909A (en) * | 1972-10-16 | 1974-06-28 | Bureau Bbr Ltd | DEVICE FOR ANCHORING WIRE OR STRAND. |
| US4192215A (en) * | 1975-05-05 | 1980-03-11 | Hymans Nelson J | Tensioning apparatus and method of applying tension to a tendon |
| DE3125166C2 (en) * | 1981-06-26 | 1993-12-02 | Dyckerhoff & Widmann AG, 8000 München | Method for producing a post-tensionable grouting anchor |
| FR2541339B1 (en) * | 1983-02-17 | 1985-08-02 | Gtm Ets Sa | DEVICE FOR ANCHORING THE ENDS OF TENTED CABLES OR BARS |
| BR8302084A (en) * | 1983-04-22 | 1984-11-20 | Freyssinet Int Stup | ASSEMBLY FOR TENSOR MEMBERS |
| FR2582335B1 (en) * | 1985-05-24 | 1987-08-14 | Gtm Ets Sa | DEVICE FOR ANCHORING AN END OF AT LEAST ONE LIVE CABLE OR BAR, PARTICULARLY FOR STRUCTURAL CONCRETE STRUCTURE. |
| DE3801451C2 (en) * | 1987-10-15 | 1994-09-29 | Dyckerhoff & Widmann Ag | Corrosion-protected free tension member, primarily tendon for prestressed concrete without bond |
| JPH01207553A (en) * | 1988-02-16 | 1989-08-21 | Sumitomo Electric Ind Ltd | Fixing tool for unbond pc steel stand |
| GB8921150D0 (en) * | 1989-09-19 | 1989-11-08 | Manuf Aceros Caucho Sa | Anchorage for a reinforcing tendon |
| AU653451B2 (en) * | 1991-11-26 | 1994-09-29 | Vsl International Ag | Anchoring device for pre-stressing components in a structural component |
| ES2102632T3 (en) * | 1992-03-24 | 1997-08-01 | Vsl Int Ag | FORCE TRANSMITTER BODY FOR AN ANCHOR. |
| EP0563006B1 (en) * | 1992-03-24 | 1997-04-02 | VSL International AG | Stress distribution element for an anchorage |
-
1994
- 1994-01-19 US US08/183,526 patent/US5596854A/en not_active Expired - Lifetime
-
1995
- 1995-01-11 ZA ZA95172A patent/ZA95172B/en unknown
- 1995-01-12 CZ CZ952701A patent/CZ270195A3/en unknown
- 1995-01-12 WO PCT/EP1995/000117 patent/WO1995020083A1/en active IP Right Grant
- 1995-01-12 BR BR9505826A patent/BR9505826A/en not_active Application Discontinuation
- 1995-01-12 CA CA002158573A patent/CA2158573A1/en not_active Abandoned
- 1995-01-12 CN CN95190035A patent/CN1115452C/en not_active Expired - Fee Related
- 1995-01-12 AT AT95906935T patent/ATE197078T1/en active
- 1995-01-12 JP JP51932395A patent/JP3578458B2/en not_active Expired - Fee Related
- 1995-01-12 KR KR1019950703987A patent/KR100276470B1/en not_active IP Right Cessation
- 1995-01-12 ES ES95906935T patent/ES2152385T3/en not_active Expired - Lifetime
- 1995-01-12 EP EP95906935A patent/EP0692054B1/en not_active Expired - Lifetime
- 1995-01-12 AU AU15339/95A patent/AU681003B2/en not_active Ceased
- 1995-01-12 DE DE69519131T patent/DE69519131T2/en not_active Expired - Lifetime
-
1998
- 1998-11-27 HK HK98112435A patent/HK1011397A1/en not_active IP Right Cessation
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1995020083B1 (en) | Post-tensioning anchor head assembly | |
| CA2337525A1 (en) | A truss structure | |
| CA2165848A1 (en) | Stud-Trough Reinforcing System for Structural Concrete | |
| CA2342343A1 (en) | Improved wedge-receiving cavity for an anchor body of a post-tension anchor system | |
| US5398475A (en) | Joint-adapter for doubly curved lattice girders, in particular single-layer types | |
| AUPR448901A0 (en) | Improved mooring system | |
| AU2531900A (en) | Structure formed of foaming cement and lightweight steel, and a structure system and method of forming the structure system | |
| AU1274797A (en) | Establishment, maintenance, and transfection of totipotent embryonic stem cells from the embryos of domestic animals | |
| CN211850918U (en) | Compact steel strand inhaul cable | |
| CA2158573A1 (en) | Post-tensioning anchor head assembly | |
| CA2133370A1 (en) | Stackable construction blocks | |
| AU6423696A (en) | High strength steel strand for prestressed concrete and method for manufacturing the same | |
| US5243789A (en) | Pulpstone | |
| JPH11100944A (en) | End fixing structure of prestressed steel material in prestressed concrete structure | |
| WO2002012649A8 (en) | Hollow pre-stressed concrete slab and method for production thereof | |
| AU698708B2 (en) | Anchor bolt, precut blank and process for the production of the anchor bolt | |
| JPH0170921U (en) | ||
| RU95122706A (en) | ANCHOR HEAD | |
| ZA984566B (en) | Fermentative production of clavulanic acid under controlled phosphate conditions | |
| JPS63130826A (en) | Pin for block stacking and parallel-crossed block structure | |
| CA2352078A1 (en) | Curling stone providing increased curl | |
| WO2009083295A1 (en) | Manufacturing a fastener with profile drawing | |
| CS253167B1 (en) | Guy sleeve for prestressing reinforcement | |
| JPH0730605B2 (en) | Mortar wall construction method | |
| WO1999045105A3 (en) | Highly crystalline urokinase |