NO802078L - ANCHORING CABLE ANCHOR CONSTRUCTION. - Google Patents
ANCHORING CABLE ANCHOR CONSTRUCTION.Info
- Publication number
- NO802078L NO802078L NO802078A NO802078A NO802078L NO 802078 L NO802078 L NO 802078L NO 802078 A NO802078 A NO 802078A NO 802078 A NO802078 A NO 802078A NO 802078 L NO802078 L NO 802078L
- Authority
- NO
- Norway
- Prior art keywords
- anchor
- anchor construction
- trumpet
- windings
- construction
- Prior art date
Links
- 238000010276 construction Methods 0.000 title claims description 18
- 238000004873 anchoring Methods 0.000 title description 4
- 238000004804 winding Methods 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Piles And Underground Anchors (AREA)
- Rod-Shaped Construction Members (AREA)
Description
Foreliggende oppfinnelse vedrører en for innstøpingThe present invention relates to one for embedding
i et byggverk beregnet ankerkonstruksjon for forspennings^kabler, med en ankerplate og til denne festede, viklingsform i retning av spennkabelen utstående forsterkningsmidler. Ankerkonstruksjoner av denne type er kjent og anvendes fremfor alt ved brokonstruksjoner og høybygg. Forsterkningsmidlene består ved de kjente konstruksjoner av en stålvikling som er sammensveiset med den likeldes av stål bestående ankerplate. in a construction site designed anchor construction for pre-tensioning cables, with an anchor plate and to this attached, winding form protruding reinforcement means in the direction of the tension cable. Anchor constructions of this type are known and used above all in bridge constructions and high-rise buildings. In the known constructions, the reinforcement means consist of a steel winding which is welded together with the anchor plate, which is also made of steel.
I fagspråket blir viklingen vanligvis betegnet som "spiral". In technical language, the winding is usually referred to as "spiral".
Vanligvis er det på byggverksiden festet en trompet til ankerplaten, hvilken trompet omgis av viklingen eller "spiralen". Usually, on the construction side, a trumpet is attached to the anchor plate, which trumpet is surrounded by the winding or "spiral".
Viklingen danner sammen med ankerplaten, og even-tuelt sammen med trompeten, de egentlige forankringslegeme i betongen, idet viklingen øker motstands- og mantelflaten til ankeret som tjener til innleding av forspenningskraften i betongkonstruksjonen. The winding forms together with the anchor plate, and possibly together with the trumpet, the actual anchoring bodies in the concrete, as the winding increases the resistance and mantle surface of the anchor which serves to introduce the prestressing force in the concrete structure.
Selv om det ved de kjente ankerkonstruksjoner rent teknisk sett ikke foreligger noen vesentlige problemer, så Although there are technically no significant problems with the known anchor constructions, so
må man ved forspenningen av kabelen først vente til det er oppnådd en relativt høy betongfasthet. Denne ventetiden er i mange tilfeller fordyrende. when prestressing the cable, you must first wait until a relatively high concrete strength has been achieved. This waiting time is in many cases costly.
Hensikten med foreliggende oppfinnelse er å tilveie-bringe en ny ankerkonstruksjon hvormed man kan løse det foran nevnte problem, med samtidig forbedring av den egentlige forankring. The purpose of the present invention is to provide a new anchor construction with which the aforementioned problem can be solved, while simultaneously improving the actual anchoring.
Ankerkonstruksjonen ifølge foreliggende oppfinnelse utmerker seg således ved at de viklings formede forsterkningsmidler består av to separate, i hverandre gripende viklinger. The anchor construction according to the present invention is thus distinguished by the fact that the winding-shaped reinforcing means consist of two separate, interlocking windings.
Ved anvendelse av en i tilfelle på ankerplaten anbragt trompet omgis denne av de to viklinger, idet vinklingenes lengdeakser forløper parallelt med og fordelaktig symmetrisk i forhold til trompetaksen. Den nye ankerkonstruksjon mulig-gjør en utøvelse av forspenningskraften allerede ved en relativ lav betongfasthet, hvilket fører til betraktelige tidsbe-sparelser ved forspente brokonstruksjoner og andre byggVerk. When using a trumpet placed on the armature plate in this case, this is surrounded by the two windings, the longitudinal axes of the windings running parallel to and advantageously symmetrical in relation to the trumpet axis. The new anchor construction makes it possible to exert the prestressing force already at a relatively low concrete strength, which leads to considerable time savings in prestressed bridge structures and other construction works.
Takket være dobbeltviklingen eller "dobbeltspiralen" oppnås det en vesentlig økning av motstands- og mantelflaten sammenlignet med vanlige konstruksjoner. Det lykkedes dermed å redusere presskraften under ankerplaten i så sterk grad at en betongfasthet på ca. 200 kg/om 2 vil være tilstrekkelig for innleding av forspenningskraften i betongkonstruksjonen. Thanks to the double winding or "double helix", a significant increase in resistance and mantle surface is achieved compared to conventional designs. It thus succeeded in reducing the compressive force under the anchor plate to such an extent that a concrete strength of approx. 200 kg/om 2 will be sufficient to initiate the prestressing force in the concrete structure.
Oppfinnelsen skal beskrives nærmere under henvisning til tegningen, hvor The invention shall be described in more detail with reference to the drawing, where
fig. 1 viser et skjematisk sideriss av en vanlig ankerkonstruksjon, og fig. 1 shows a schematic side view of a common anchor construction, and
fig. 2 viser et sideriss av en ankerkonstruksjon ifølge oppfinnelsen. fig. 2 shows a side view of an anchor construction according to the invention.
Fig. 1 viser en vanlig ankerkonstruksjon hvor detFig. 1 shows a common anchor construction where it
i et byggverk 1 er innstøpt en ankerplate 2, med trompet 3, omhyllingsrør 4 og vikling eller spiral 5. For oversiktens skyld er spennkabelen og ankerhodet ikke vist. in a structure 1 an anchor plate 2 is embedded, with trumpet 3, casing pipe 4 and winding or spiral 5. For the sake of clarity, the tension cable and anchor head are not shown.
Fig. 2 viser et riss som i fig. 1, hvor trompten 3 er omgitt av to på ankerplaten 2 anbragte viklinger 6, 7. Dete tør være helt klart at man ved den nye løsning ifølge oppfinnelsen og med samme diameter for de enkelte viklinger, får en vesentlig øking av motstands- og mantelflaten. De dermed oppnådde innsparinger, med samtidig forbedring av forankringen, er av vesentlig større betydning enn den for-dyrelse den nye ankerkonstruksjon i seg selv vil medføre. Fig. 2 shows a drawing as in fig. 1, where the trumpet 3 is surrounded by two windings 6, 7 placed on the armature plate 2. It should be quite clear that with the new solution according to the invention and with the same diameter for the individual windings, a significant increase in the resistance and mantle surface is obtained. The thus achieved savings, with simultaneous improvement of the anchoring, are of significantly greater importance than the increase in cost that the new anchor construction itself will entail.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH645179A CH638857A5 (en) | 1979-07-11 | 1979-07-11 | Anchor design for prestressing cables |
Publications (1)
Publication Number | Publication Date |
---|---|
NO802078L true NO802078L (en) | 1981-01-12 |
Family
ID=4309843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO802078A NO802078L (en) | 1979-07-11 | 1980-07-10 | ANCHORING CABLE ANCHOR CONSTRUCTION. |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT367498B (en) |
CH (1) | CH638857A5 (en) |
DE (1) | DE3026107C2 (en) |
NL (1) | NL8003953A (en) |
NO (1) | NO802078L (en) |
SE (1) | SE8005102L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4424278A1 (en) * | 1994-07-01 | 1996-01-04 | Frank Gmbh & Co Kg Max | Concrete component embedded sleeve for bolt of adjacent component |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB894964A (en) * | 1958-10-06 | 1962-04-26 | Cufflin Holdings Ltd | Improvements in or relating to prestressed concrete |
GB903628A (en) * | 1959-01-02 | 1962-08-15 | George Osborn Kee | Tubular end anchorages for bolts and prestressing bars |
-
1979
- 1979-07-11 CH CH645179A patent/CH638857A5/en not_active IP Right Cessation
-
1980
- 1980-07-09 NL NL8003953A patent/NL8003953A/en not_active Application Discontinuation
- 1980-07-10 NO NO802078A patent/NO802078L/en unknown
- 1980-07-10 DE DE3026107A patent/DE3026107C2/en not_active Expired
- 1980-07-10 AT AT0360680A patent/AT367498B/en not_active IP Right Cessation
- 1980-07-11 SE SE8005102A patent/SE8005102L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE8005102L (en) | 1981-01-12 |
DE3026107A1 (en) | 1981-01-29 |
ATA360680A (en) | 1981-11-15 |
DE3026107C2 (en) | 1986-07-10 |
CH638857A5 (en) | 1983-10-14 |
AT367498B (en) | 1982-07-12 |
NL8003953A (en) | 1981-01-13 |
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