GB803484A - Improvements in or relating to structural building units - Google Patents
Improvements in or relating to structural building unitsInfo
- Publication number
- GB803484A GB803484A GB2605755A GB2605755A GB803484A GB 803484 A GB803484 A GB 803484A GB 2605755 A GB2605755 A GB 2605755A GB 2605755 A GB2605755 A GB 2605755A GB 803484 A GB803484 A GB 803484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- concrete
- bars
- planks
- boxes
- slab
- 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
- 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
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
Abstract
803,484. Reinforced concrete; floors; roofs; girders. PRE-STRESSED CONCRETE CO., Ltd. Nov. 28, 1956 [Sept. 12, 1955], No. 26057/55. Class 20(4) A slab for a large span floor or roof comprises a number of pre-cast pre-stressed concrete planks 1 arranged side-by-side with bars 3 projecting from the upper surface and light hollow boxes 5 of e.g. cardboard, placed along at least one plank and a continuous concrete layer 9 cast In-situ over the surface and covering the bars 3 which reinforces the joint between the concrete covering 9 and the planks 1. The planks 1 are pernanently supported on walls 2 and may have temporary intermediate supports if necessary. The bars 3 are U-shaped stirrups having hooked ends 4 and are cast in the planks 1 at equal intervals along their length. As shown, the boxes 5 are arranged in rows between the hooked ends 4, and transversely aligned spaces 7 are left between adjacent boxes in each row in which is placed a reinforcing bar 8. The in-situ concrete 9 penetrates between the rows of boxes 5 forming longitudinal concrete webs 10 and also into the spaces 7 forming transverse stiffening ribs and is tied to the planks by the stirrups 3. When an intermediate support is required but. is not available, a reinforced concrete beam may be constructed within the depth of the slab. Fig. 6 shows angle irons affixed to the ends of the planks 1 which are temporarily supported by props, and reinforcing bars 15, 16 placed in position. U-shaped bars 17 placed over the reinforcing bars have threaded ends 18 which project through holes in the angle irons 14 and are secured in position by nuts 19. The covering concrete 19 is cast around the bars 15, 16 to form the reinforced concrete beam which, when set, supports the bars 17 and the temporary props can then be removed. In Fig. 7 (not shown), an arched roof slab is formed by tensioning tie rods to the ends of the concrete planks, the slab then built up in the same manner as before. The boxes 5 alternatively may be formed of hollow tiles or solid blocks of lightweight material, e.g. aerated concrete, foamed slag or vermiculite. Specification 748,104 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2605755A GB803484A (en) | 1955-09-12 | 1955-09-12 | Improvements in or relating to structural building units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2605755A GB803484A (en) | 1955-09-12 | 1955-09-12 | Improvements in or relating to structural building units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB803484A true GB803484A (en) | 1958-10-29 |
Family
ID=10237679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2605755A Expired GB803484A (en) | 1955-09-12 | 1955-09-12 | Improvements in or relating to structural building units |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB803484A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2536594C1 (en) * | 2013-08-29 | 2014-12-27 | Татьяна Рустиковна Забалуева | Building with large-span room |
| CN106609570A (en) * | 2016-09-30 | 2017-05-03 | 长沙远大住宅工业集团股份有限公司 | Laminated assembly type concrete ribbed floor |
| IT201700023759A1 (en) * | 2017-03-02 | 2018-09-02 | Prefabbricati Barili Silvio Srl | PREFABRICATED FLOOR |
| CN113944270A (en) * | 2021-12-16 | 2022-01-18 | 青岛新华友建工集团股份有限公司 | Cast-in-place prestressed concrete sandwich composite beamless floor structure |
| CN114635564A (en) * | 2022-01-10 | 2022-06-17 | 中铁二十一局集团第四工程有限公司 | Large-span slow-bonding prestressed hollow floor core mold construction method |
-
1955
- 1955-09-12 GB GB2605755A patent/GB803484A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2536594C1 (en) * | 2013-08-29 | 2014-12-27 | Татьяна Рустиковна Забалуева | Building with large-span room |
| CN106609570A (en) * | 2016-09-30 | 2017-05-03 | 长沙远大住宅工业集团股份有限公司 | Laminated assembly type concrete ribbed floor |
| IT201700023759A1 (en) * | 2017-03-02 | 2018-09-02 | Prefabbricati Barili Silvio Srl | PREFABRICATED FLOOR |
| CN113944270A (en) * | 2021-12-16 | 2022-01-18 | 青岛新华友建工集团股份有限公司 | Cast-in-place prestressed concrete sandwich composite beamless floor structure |
| CN114635564A (en) * | 2022-01-10 | 2022-06-17 | 中铁二十一局集团第四工程有限公司 | Large-span slow-bonding prestressed hollow floor core mold construction method |
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