CA1043989A - Method of eliminating an uneven stress distribution in an elongated reinforcing member - Google Patents
Method of eliminating an uneven stress distribution in an elongated reinforcing memberInfo
- Publication number
- CA1043989A CA1043989A CA244,922A CA244922A CA1043989A CA 1043989 A CA1043989 A CA 1043989A CA 244922 A CA244922 A CA 244922A CA 1043989 A CA1043989 A CA 1043989A
- Authority
- CA
- Canada
- Prior art keywords
- chamber
- force
- fluid
- ram
- tensioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 27
- 238000009826 distribution Methods 0.000 title claims abstract description 10
- 230000035939 shock Effects 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 45
- 230000001902 propagating effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000002250 progressing effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- ZPEZUAAEBBHXBT-WCCKRBBISA-N (2s)-2-amino-3-methylbutanoic acid;2-amino-3-methylbutanoic acid Chemical compound CC(C)C(N)C(O)=O.CC(C)[C@H](N)C(O)=O ZPEZUAAEBBHXBT-WCCKRBBISA-N 0.000 description 1
- 101100355633 Salmo salar ran gene Proteins 0.000 description 1
- 206010043268 Tension Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 101150115956 slc25a26 gene Proteins 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49874—Prestressing rod, filament or strand
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Reinforcement Elements For Buildings (AREA)
- Ropes Or Cables (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Measuring Fluid Pressure (AREA)
- Piles And Underground Anchors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7501229A SE395496B (sv) | 1975-02-04 | 1975-02-04 | Forfaringssett och anordning vid uppspenning av en armeringsstreng i en konstruktion av spennbetong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1043989A true CA1043989A (en) | 1978-12-12 |
Family
ID=20323598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA244,922A Expired CA1043989A (en) | 1975-02-04 | 1976-02-03 | Method of eliminating an uneven stress distribution in an elongated reinforcing member |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4048706A (OSRAM) |
| JP (1) | JPS51136329A (OSRAM) |
| CA (1) | CA1043989A (OSRAM) |
| DE (1) | DE2604286A1 (OSRAM) |
| FR (1) | FR2300193A1 (OSRAM) |
| GB (1) | GB1501523A (OSRAM) |
| IT (1) | IT1055061B (OSRAM) |
| NO (1) | NO144271C (OSRAM) |
| SE (1) | SE395496B (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7803640L (sv) * | 1978-03-31 | 1979-10-01 | Ludvigson Birger | Anordning for streckning av en armeringsstreng |
| IT1133577B (it) * | 1980-06-12 | 1986-07-09 | Romualdo Macchi | Martinetto per il tensionamento dei cavi formati da trefoli o da tondini inguainati in strutture di cemento armato precompresso |
| FR2518302A1 (fr) * | 1981-12-14 | 1983-06-17 | Commissariat Energie Atomique | Procede de fabrication d'un assemblage combustible de reacteur nucleaire du type a eau legere et outillage pour la mise en oeuvre du procede |
| JP6316007B2 (ja) * | 2014-01-29 | 2018-04-25 | 株式会社竹中工務店 | 緊張材の緊張方法、及び緊張装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE920683C (de) * | 1952-12-04 | 1954-11-29 | Alfred Bossich | Verfahren zum Spannen von Vorspanngliedern fuer Stahlbetonbauteile |
| DE1018607B (de) * | 1954-05-03 | 1957-10-31 | Holzmann Philipp Ag | Verfahren und Einrichtungen zum Vermindern der Spannkraftverluste infolge Reibung der Spannglieder in Spannbetonkoerpern |
| US3004389A (en) * | 1959-04-25 | 1961-10-17 | Muller Ludwig | Device for varying the frequency of a vibration exciter |
| US3176961A (en) * | 1962-03-05 | 1965-04-06 | John P Glass | Hydraulic jack apparatus |
-
1975
- 1975-02-04 SE SE7501229A patent/SE395496B/xx unknown
-
1976
- 1976-01-30 GB GB3685/76A patent/GB1501523A/en not_active Expired
- 1976-02-03 FR FR7602953A patent/FR2300193A1/fr active Granted
- 1976-02-03 NO NO760352A patent/NO144271C/no unknown
- 1976-02-03 CA CA244,922A patent/CA1043989A/en not_active Expired
- 1976-02-03 IT IT19827/76A patent/IT1055061B/it active
- 1976-02-03 US US05/654,988 patent/US4048706A/en not_active Expired - Lifetime
- 1976-02-04 JP JP51011792A patent/JPS51136329A/ja active Pending
- 1976-02-04 DE DE19762604286 patent/DE2604286A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2300193B1 (OSRAM) | 1979-08-24 |
| NO144271C (no) | 1981-08-05 |
| GB1501523A (en) | 1978-02-15 |
| DE2604286A1 (de) | 1976-08-05 |
| JPS51136329A (en) | 1976-11-25 |
| US4048706A (en) | 1977-09-20 |
| NO144271B (no) | 1981-04-21 |
| SE395496B (sv) | 1977-08-15 |
| IT1055061B (it) | 1981-12-21 |
| FR2300193A1 (fr) | 1976-09-03 |
| NO760352L (OSRAM) | 1976-08-05 |
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