07
| . |
| ϳ . |
| . |
| 5.06010101 07 . |
| . |
| . |
| . |
| ˳. |
| . |
07
: ϳ ' ; - . 1. . 1 2 qn ; q . : 
=1,5; 
=0,3. : l = 1,2 .
1. :
7.1-
| , , - | ɑ, | 12 , /2 | l | ||||
| , qn | , q | ||||||
(: , .1)
7.1-
( 1 , .1).
| . |
| . |
| ϳ |
| 5.06010101 07 |
2.
2.1. ( , .2):: . n = _____ ; qnl = _________ .
2.2. :
gn = 0,25 /; γf= 1,1;
g = gn∙γf= /;
2.3. :
qn = qn ∙ l + gn = /;
q1 = q ∙ l + g = /.
2.4. γn = 0,95
q = q1 ∙ γn = /.
2.5. :
l0 = l - 2 (l /2) δ= .
: δ=20 , l = 180.
2.6. :
Q= q l0 /2 = ;
= q l02 /8 = ∙.
2.7. 13. ( ., .3)
|
|
|
Ru = _______ = Ru /10=_________ /2;
R = _______ = R/10=_________ /2
2.8. . .4 , ___________ m = ___________.
m :
| . |
| . |
| ϳ |
| 5.06010101 07 |
Ru = Ru ∙ m = = Ru/10= /2;
R = R ∙ m = = R/10= /2.
| . |
| . |
| ϳ |
| 5.06010101 07 |
2.9. ,
Wx = ∙(100)/ Ru = 3.
2.10. b=15 , :
= 
.
2.11. , ( , .5): b = ____ ; h = ___ .
2.12. :
) : ,
= 0.5∙b∙h 
= 
) :
) :
:_________________________________________________________;
) :
:
= 1000 /2
fu = l /150 = ;
l- .
f = _______ < fu = __________ - ;
| . |
| . |
| ϳ |
| 5.06010101 07 |
/
___________/;
, _____ (. .6) fu = l/ _____ = .
f = _______ < fu = _______ .
______________
