GB172773A - Improvements in reinforced concrete girders or beams - Google Patents
Improvements in reinforced concrete girders or beamsInfo
- Publication number
- GB172773A GB172773A GB2769320A GB2769320A GB172773A GB 172773 A GB172773 A GB 172773A GB 2769320 A GB2769320 A GB 2769320A GB 2769320 A GB2769320 A GB 2769320A GB 172773 A GB172773 A GB 172773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beams
- openings
- reinforced
- girders
- reinforced concrete
- 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
- 239000011150 reinforced concrete Substances 0.000 title abstract 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
172,773. Bradshaw, F. W. Sept. 29, 1920. Reinforced-concrete girders and beams.-A reinforced-concrete girder, beam, or pit prop is made with the compression boom x straight and the tension boom y sloping upwards from the centre to the ends, and with vertical struts a and openings z. Both booms are doubly reinforced and the bars are welded together at the ends. Extra reinforcements i<1> may be added over the openings z. The bearing ends may be flat, or concave sheet-iron guards h, Fig. 11, may be clipped over the ends to coact with rounded heads of props. Smaller beams may be made without the openings z, as shown in Fig. 15. The girders and beams are applied to a mine gallery as shown in Figs. 14 and 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2769320A GB172773A (en) | 1920-09-29 | 1920-09-29 | Improvements in reinforced concrete girders or beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2769320A GB172773A (en) | 1920-09-29 | 1920-09-29 | Improvements in reinforced concrete girders or beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB172773A true GB172773A (en) | 1921-12-22 |
Family
ID=10263760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2769320A Expired GB172773A (en) | 1920-09-29 | 1920-09-29 | Improvements in reinforced concrete girders or beams |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB172773A (en) |
-
1920
- 1920-09-29 GB GB2769320A patent/GB172773A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB172773A (en) | Improvements in reinforced concrete girders or beams | |
| GB845429A (en) | Improvements relating to mine support girders or bars | |
| GB250588A (en) | Improvements in trussed structural units | |
| GB832839A (en) | Improvements in or relating to steel girders for ferroconcret ribbed ceilings | |
| GB335641A (en) | Improvements in or connected with skeleton girder or beam structures | |
| GB155964A (en) | Improvements in or relating to reinforced concrete floors, roofs, decks, and the like | |
| GB1214726A (en) | Improvements in or relating to reinforcements for concrete structures | |
| GB506344A (en) | Improvements in arched building structures for bridges and roofs | |
| GB317116A (en) | Improvements in and relating to reinforced concrete structures | |
| GB549051A (en) | Improvements in trussed beams | |
| GB293520A (en) | Improvements in devices for shoring or supporting the roofs of mines | |
| SU687166A1 (en) | Method of erecting concrete dams | |
| SU571561A1 (en) | Reinforced composite block | |
| GB204535A (en) | Improvements in or relating to built-up metal towers, particularly those for crane stagings employed in the construction of buildings | |
| GB340558A (en) | Improvements in the construction of arched roofs | |
| GB562601A (en) | Improvements in and relating to bridges and bridge-like structures made with standardised parts | |
| GB188406A (en) | Improvements relating to the construction of floors and the like | |
| GB228360A (en) | Improvements in the construction of beams or joists for building or like purposes | |
| Pańtak | Double composite bridges–the main concept and examples of its implementation | |
| GB873793A (en) | Lattice girder for steel concrete rib ceilings | |
| SU922257A1 (en) | Reinforcement structure for ferroconcrete girders | |
| GB540018A (en) | Improvements in or relating to lattice girders, framed structures or frameworks built up from metal elements | |
| GB680350A (en) | Improvements in metal and concrete structures | |
| GB1063680A (en) | Improvements in truss girders | |
| SU126592A1 (en) | Crane way of tower cranes |