GB474422A - An improved reinforcing member for reinforced concrete structures - Google Patents
An improved reinforcing member for reinforced concrete structuresInfo
- Publication number
- GB474422A GB474422A GB12097/36A GB1209736A GB474422A GB 474422 A GB474422 A GB 474422A GB 12097/36 A GB12097/36 A GB 12097/36A GB 1209736 A GB1209736 A GB 1209736A GB 474422 A GB474422 A GB 474422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- radius
- reinforcing member
- circle
- cross
- 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
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
474,422. Reinforced concrete. GRIFFEL, H. April 28, 1936, No. 12097. Convention date, Dec. 14, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 22, 1937.] [Class 20 (iv)] A non-circular reinforcing member for reinforced concrete structures is made of steel having a high yield point, and the cross-section thereof is derived from the cross-section of a normal circular iron reinforcing member of diameter d, and is produced by removing from the circle two opposite lens-like segments by arcs having the same radius as, or a smaller radius than, the circle. The resultant crosssection has an area which is smaller in the desired proportion to the area of the complete circle, but has a periphery which is greater than or equal thereto, whereby the non-circular steel reinforcing member is adaptable for higher allowable stresses and is exchangeable directly for the circular iron reinforcing member, that is without any further calculation or alteration of plan. In the construction shown, the concave portions y each extend through an angle B=87‹14' and each has a radius r<1> which is equal to the radius r of the circle. In a modification, the edges between the concave and convex parts are rounded off. In another modification, ribs bridging the concave portions, are arranged at spaced intervals along the bar, and according to a further construction, the bar is twisted around its longitudinal axis. The Specification as open to inspection under Sect. 91 describes also a number of other reinforcing bars of non-circular cross-section. According to one construction, the bar is of elliptical cross-section and in other constructions the bars are substantially rectangular in section and have rounded corners or rounded ends. In another construction, Fig. 6 (Cancelled), the cross-section of the bar is derived from a circle of diameter d and comprises five convex portions of radius r which merge into five concave portions of radius r<1> ; other similar bars are described which differ only in the number of the concave and convex portions. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL474422X | 1935-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB474422A true GB474422A (en) | 1937-10-28 |
Family
ID=19936372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12097/36A Expired GB474422A (en) | 1935-12-14 | 1936-04-28 | An improved reinforcing member for reinforced concrete structures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB474422A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012022005A1 (en) * | 2010-08-20 | 2012-02-23 | Juan Pablo Covarrubias Torres | Steel bar comprising projections, used to form concrete frameworks, such that the concrete remains in the elastic range in terms of strength with a stress of less than 50% of the breaking stress, in which the bar has a diameter d and the projections are spaced apart by a distance l, have a height h and an area of less than one fourth of the perimeter multiplied by l |
| CN103982006A (en) * | 2014-05-30 | 2014-08-13 | 陈胜民 | Double-triangle shared-vertex angle (double-trapezoid) type high-efficiency high-intensity threaded reinforcing steel bar and application method thereof |
| CN108221963A (en) * | 2018-01-31 | 2018-06-29 | 中国地质大学（武汉） | A kind of quincunx concrete tubular pile |
-
1936
- 1936-04-28 GB GB12097/36A patent/GB474422A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012022005A1 (en) * | 2010-08-20 | 2012-02-23 | Juan Pablo Covarrubias Torres | Steel bar comprising projections, used to form concrete frameworks, such that the concrete remains in the elastic range in terms of strength with a stress of less than 50% of the breaking stress, in which the bar has a diameter d and the projections are spaced apart by a distance l, have a height h and an area of less than one fourth of the perimeter multiplied by l |
| CN103201440A (en) * | 2010-08-20 | 2013-07-10 | J·P·科瓦儒比亚斯托雷斯 | Steel bar comprising projections, used to form concrete frameworks, such that the concrete remains in the elastic range in terms of strength with a stress of less than 50% of the breaking stress, in which the bar has a diameter D and the projections are spaced apart by a distance L, have a height H and an area of less than one fourth of the perimeter multiplied by L |
| CN103982006A (en) * | 2014-05-30 | 2014-08-13 | 陈胜民 | Double-triangle shared-vertex angle (double-trapezoid) type high-efficiency high-intensity threaded reinforcing steel bar and application method thereof |
| CN108221963A (en) * | 2018-01-31 | 2018-06-29 | 中国地质大学（武汉） | A kind of quincunx concrete tubular pile |
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