( 1.5), 1:200, . 1:39, 14,27 , , 0,5b = 3,35 .
= 390,93 = 392,99 . F I0 = 0,05 .
1:2 = 392,99 . 5 1:2 .
, P0 P, b0,
Z = , (1.14)
Z =
. ( ) , . 36 , . AL R.
ABCDELG , , , . , - 5 , .
.
:
- I , ( );
- II , ( );
- III .
I :
γI=γ = 18, 221 /3
eI = e =0,682
fI = 1,15*tgj (1.15)
I = 1,15c (1.16)
j, /1/.
fI = 1,15*tg24̊ = 0,512
I = 1,15*14 = 16,1
II :
gII= (1.17)
fII = 0,75 fI (1.18)
cII =0,5 cI, (1.19)
rs ; rw (rw = 1).
gII = =9,86 /3
fII =0,75*0,512=0,384
cII =0,5*16,10=8,05
III
|
|
(1.20)
fIII = 0,75*1,15 tgj (1.21)
= 0,5*1,15 , (1.22)
rs, j /1/; , :
sg = h*gI, (1.23)
sg =6,4*18,221 = 116,6
=0,709
= 9,82 /3
fIII = 1,15*0,75 tg 14=0,215
= 1,15*0,5*2=1,15
1.4.3. .
1 , , i- . :
Ni = Qi * cos bi (1.24)
Ti = Qi * sin bi, (1.25)
Qi - i - ,
Qi = åFi * gi * 1, (1.26)
Fi - , ,2; bi
, (1.27)
- xi , .
D0,,
Do = gw * Io *å (FiII+FIIIi), (1.28)
gw , gw = 9,81 /3.
1.2
.
[ K ] (1.13)
Do = 9,81*0,05*(39,56+3,92) = 21,33 ,
= (355,33+985,89+4,37) / (1126,94+21,33) = 1,17
[K] = (1,1*1)/0,95 = 1,16
= 1,17 / 1,07 = 1,09
< [K] 0,02, , , :
∆ = ([K] 0,02 ) / [K] * 100%
∆ = (1,16 0,02 1,09)/1,16*100% = 4,31%:
∆ < 10% ( 0,25 ).