RU97115886A - PROTECTION OF PROTECTED ROOM FOR STORING VALUES - Google Patents
PROTECTION OF PROTECTED ROOM FOR STORING VALUESInfo
- Publication number
- RU97115886A RU97115886A RU97115886/03A RU97115886A RU97115886A RU 97115886 A RU97115886 A RU 97115886A RU 97115886/03 A RU97115886/03 A RU 97115886/03A RU 97115886 A RU97115886 A RU 97115886A RU 97115886 A RU97115886 A RU 97115886A
- Authority
- RU
- Russia
- Prior art keywords
- fibers
- max
- concrete
- condition
- diameter
- Prior art date
Links
- 239000000835 fiber Substances 0.000 claims 10
- 230000035839 C max Effects 0.000 claims 4
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 230000003014 reinforcing Effects 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 239000000945 filler Substances 0.000 claims 1
Claims (2)
2Cmax≤lf≤0,8 S,
где Cmax - максимальный размер зерен крупного заполнителя бетона;
S - размер ячейки в свету арматурной сетки,
при этом отношение df/Cmax определено из условия:
где df - диаметр фибр;
μf•v - объемное (относительное) содержание фибр в бетоне;
К - коэффициент, значение которого для фибр с относительной длиной lf/df = 50 - 75 -100 принято равным, соответственно, 4,24 - 4,85 - 5,35,
при этом диаметр фибр принят из условия
для фракции заполнителя с крупностью зерен Cmax от 15 до 20 мм или из условия:
для фракции заполнителя с крупностью зерен Cmax менее 15 мм.1. The fencing of the protected premises for storing value in the form of a closed monolithic concrete structure dispersedly reinforced with steel fibers, comprising at least two reinforcing meshes, the cells of which are offset from each other in both directions in the plane of the structure by an amount equal to half the cell size characterized in that the length of the fibers l f accepted within
2C max ≤l f ≤0.8 S,
where C max - the maximum grain size of a large aggregate of concrete;
S is the cell size in the light of the reinforcing mesh,
the ratio d f / C max is determined from the condition:
where d f is the diameter of the fibers;
μ f • v - volumetric (relative) fiber content in concrete;
K is a coefficient whose value for fibers with a relative length l f / d f = 50 - 75 -100 is taken equal to, respectively, 4.24 - 4.85 - 5.35,
the diameter of the fibers is taken from the condition
for a filler fraction with a grain size C max from 15 to 20 mm or from the condition:
for aggregate fractions with grain size C max less than 15 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU97115886A RU2111319C1 (en) | 1997-09-30 | 1997-09-30 | Enclosure of guarded room for keeping of values |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU97115886A RU2111319C1 (en) | 1997-09-30 | 1997-09-30 | Enclosure of guarded room for keeping of values |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2111319C1 RU2111319C1 (en) | 1998-05-20 |
RU97115886A true RU97115886A (en) | 1999-01-27 |
Family
ID=20197428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU97115886A RU2111319C1 (en) | 1997-09-30 | 1997-09-30 | Enclosure of guarded room for keeping of values |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2111319C1 (en) |
-
1997
- 1997-09-30 RU RU97115886A patent/RU2111319C1/en active
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