GB685131A - Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor - Google Patents
Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams thereforInfo
- Publication number
- GB685131A GB685131A GB3289749A GB3289749A GB685131A GB 685131 A GB685131 A GB 685131A GB 3289749 A GB3289749 A GB 3289749A GB 3289749 A GB3289749 A GB 3289749A GB 685131 A GB685131 A GB 685131A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beams
- concrete
- cast
- grooves
- reinforced
- 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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/22—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members built-up by elements jointed in line
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
- E04B5/06—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement with beams placed against one another optionally with pointing-mortar
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
Abstract
685,131. Beams; floors; reinforced concrete. EVANS, W. A. March 27, 1951 [Dec. 23, 1949], No. 32897/49. Class 20(iv) A composite beam for a concrete roof, floor or the like is formed from reinforced concrete beam elements placed end-to-end and held together under compression by prestressing members carried in open guide ways in the outer side surfaces of the beam elements. The figures show a footbridge 1 spanning the space between walls 2 and 3 and built of composite beams laid side by side..Each beam consists of a pair of reinforced beam elements 4 or 6 which are placed in line with their aljoining ends on a temporary support 11. The inner beams 4 are hollow except at the ends and have grooves 9 formed in each side face. The side beams 6 are solid throughout and have a groove 9 in the inner side face only. A steel cable 10 is passed through each duct formed by the grooves 9 and a concrete filling member 5 cast in situ between the beam ends. When the member 5 has hardened the cables are strained against the end faces of the beam whilst transverse prestressing rods 13 are threaded through holes provided near the beam ends and tensioned to hold the beams together. Grouting is filled into the ducts and anchor blocks 14 and 15 are cast in situ against the ends of beams to secure the cable ends. The structure is completed by a concrete layer 7 which is spread over the beams 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3289749A GB685131A (en) | 1949-12-23 | 1949-12-23 | Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3289749A GB685131A (en) | 1949-12-23 | 1949-12-23 | Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB685131A true GB685131A (en) | 1952-12-31 |
Family
ID=10345670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3289749A Expired GB685131A (en) | 1949-12-23 | 1949-12-23 | Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB685131A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2971295A (en) * | 1955-03-21 | 1961-02-14 | Phillips Petroleum Co | Prestressed concrete units and structures |
US3283457A (en) * | 1964-01-22 | 1966-11-08 | Baltimore Concrete Plank Corp | Prestressed concrete plank construction |
CN102720303A (en) * | 2012-06-15 | 2012-10-10 | 吴方伯 | Concrete composite beam |
ES2590536R1 (en) * | 2015-05-01 | 2017-03-09 | Elastic Potential, S.L. | Construction system and assembly procedure for this |
-
1949
- 1949-12-23 GB GB3289749A patent/GB685131A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2971295A (en) * | 1955-03-21 | 1961-02-14 | Phillips Petroleum Co | Prestressed concrete units and structures |
US3283457A (en) * | 1964-01-22 | 1966-11-08 | Baltimore Concrete Plank Corp | Prestressed concrete plank construction |
CN102720303A (en) * | 2012-06-15 | 2012-10-10 | 吴方伯 | Concrete composite beam |
CN102720303B (en) * | 2012-06-15 | 2014-12-10 | 吴方伯 | Concrete composite beam |
ES2590536R1 (en) * | 2015-05-01 | 2017-03-09 | Elastic Potential, S.L. | Construction system and assembly procedure for this |
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