. , , - , , , .
- , .
, , , , . , , , , , , .
: , - , - . , , , .
σzg
(7.1) |
γ i - ;
h i - ;
, .
,
(7.2) |
γs , /3;
γω , γω =10 /3;
.
, , .
z , ,
(7.3) |
α , η = l × b ξ = z / b;
z , , .
7 7.1.
T 7.1
l × b, | d, | , | p, | - |
3×2.5 | 3,0 | 4,9 |
,
|
|
(7.4) |
b .
, (7.1), b =3 |
1,0 .
. 7.1.
(7.5) |
γ ;
d .
(7.6) |
ρ ;
g , g =9,81 /2.
(d =3 ; ρ =2,08 /3) (7.5) (7.6) :
(ρ =2,01 /3; g =9,81 /2) (7.6):
0-, 1-, 2-, 3-, 4- (7.1):
(7.2) (7.6). (γs =2,68 /3; γω =10 /3; =0,69):
3-, 4-,5- 6- (7.1), γsb:
(7.7) |
p ( p = 240 );
σzg,0 (σzg,0 =60,80 ).
(7.7) :
, (7.3). α, ξ = z / b η = l × b. :
η =1,67 ξ α. (7.2).
z , , (7.3) 7.2.
7.2
z, | ξ = 2 z / b | α η = l / b | σzg | σzp | 0,2 σzg | |
60,80 | 179,20 | 12,16 | ||||
0,8 | 0,824 | 80,52 | 147,66 | 16,10 | ||
1,9 | 1,52 | 0,522 | 98,27 | 93,54 | 19,62 | |
2,5 | 0,375 | 104,05 | 67,20 | 20,81 | ||
3,1 | 2,48 | 0,279 | 109,84 | 50,00 | 21,97 | |
4.1 | 3,6 | 0,170 | 119,48 | 30,46 | 23,90 | |
5,1 | 4,08 | 0,123 | 125,88 | 22,04 | 25,18 |
σzp 0,2 σzg . 7.2.
7.1
7.2
|
|