GB656240A - Pre-stressed reinforced concrete - Google Patents
Pre-stressed reinforced concreteInfo
- Publication number
- GB656240A GB656240A GB2630647A GB2630647A GB656240A GB 656240 A GB656240 A GB 656240A GB 2630647 A GB2630647 A GB 2630647A GB 2630647 A GB2630647 A GB 2630647A GB 656240 A GB656240 A GB 656240A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gaps
- reinforced concrete
- wires
- nuts
- sleeve
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/046—Post treatment to obtain pre-stressed articles
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Bridges Or Land Bridges (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
656,240. Reinforced concrete beams. GLOVER, C. W. Sept. 29, 1947, No. 26306. [Class 20(iv)] A pre-stressed pre-cast reinforced concrete beam is made by casting a reinforced concrete beam 1, 7, 8, with high tensile reinforcement 4 anchored therein and with a gap 9, 10 near each end thereof, widening the gaps until the requisite tension is induced in the wires, and filling the gaps with concrete while the tension in the reinforcement is maintained. The gaps are conveniently widened by means of nuts. and bolts 11, 12 bearing on steel plates 13, 14 inserted in the gaps, the nuts being partly screwed off to widen the gap sufficiently for the insertion of longer stronger bolts, and so on until permanent steel spacers can be inserted. The wires are conveniently grouped in one or more straight strands held together with coarse string and surrounded by a sleeve 15 of bituminous or waxed paper or the like which prevents the concrete from bonding with the wire. The sleeve is helically wound with coarse string. The wires are preferably cut. in equal lengths, twice that of the beam looped through the plates 13, 14 at one end, passing over a short tube 16, and clamped or welded together after passing through a companion plate at the other end. Specification 541,160 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2630647A GB656240A (en) | 1947-09-29 | 1947-09-29 | Pre-stressed reinforced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2630647A GB656240A (en) | 1947-09-29 | 1947-09-29 | Pre-stressed reinforced concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB656240A true GB656240A (en) | 1951-08-15 |
Family
ID=10241563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2630647A Expired GB656240A (en) | 1947-09-29 | 1947-09-29 | Pre-stressed reinforced concrete |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB656240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1021777B (en) * | 1953-02-09 | 1957-12-27 | Franz Bock | Process for the production of prestressed concrete components |
| US2857755A (en) * | 1953-07-22 | 1958-10-28 | Werth Adam | Method and means of prestressing |
-
1947
- 1947-09-29 GB GB2630647A patent/GB656240A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1021777B (en) * | 1953-02-09 | 1957-12-27 | Franz Bock | Process for the production of prestressed concrete components |
| US2857755A (en) * | 1953-07-22 | 1958-10-28 | Werth Adam | Method and means of prestressing |
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