)
Pmax = + = + =161.01+28.22=191.23 /2;
Pmax = + = - =161.01-28.22=134.79 /2;
3- , ( )
I-I
PI-I = Pmax =191.23- =184.39/2;
I-I = = =40.81..
= h f ,1 - a = 0,45 0,05 = 0,40 = 40 ( 40 ).
s1 = = = 3.19 2
II -II
P I I-I I = Pmax =191.23- =177.55/2;
I I -I I = = =161.28..
=(h f ,1 + h f ,2)- a = (0,45+0,45) 0,05 = 0,85 = 85
s1 = = = 5.94 2
III -III
P I I I -I I I = Pmax =191.23- =172.42/2;
I I I -I I I = = =302.13 ..
=H- a = 2.15 0,05 = 2.1 = 210
s1 = = = 4.50 2
:
1) 3- si s,max = s2 = 5.94 2;
2) S 200300 ( 50 );
3) s 5075 ( 25 );
4) =
5) .
S=300 , s =50 , -1 = = 8.67 . S=250 : -3 = => = 10. 10Ø12 400 As= 11.31 2 > s,max = 5.94 2.
:
I-I 1 = = =0.104 %;
II- II 2 = = =0.07 %;
III-III 3 = = =0.05 %;
II-II III-III < 0.1 %, .
S=200 , s =50 , -1 = = 13 => = 14. 14Ø16 400 As=20.11+8.04= 28.15 2 > s,max = 5.94 2.
, :
I-I 1 = = =0.261 %;
II- II 2 = = =0.174 %;
III-III 3 = = =0.122 %;
:
14Ø16 400 As=28.15 2 , 200 , s =50 .
3 (l=3.3 ), , 300 (0.1l=0.33 , 5 .)
)
V-V:
PV-V = = =163.01 /2;
h05 = h02=85 ; (h04= h01=40 , h06= h03=210 );
V-V = = =172.14..
s5 = = = 6.34 2
S=250 , s =50 , -1 = = 12.8 . s =75 , S=200 :
-3 = => = 14. 14Ø16 400 As= 28.15 2 > s,max = 6.34 2.
:
V-V 5 = = =0.132 %> ;
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:
IV- IV 4 = = =0.213 %> ;
VI-VI 6 = = =0.079 %< .
VI-VI < 0.1 %, .
S=200 , s =50 , -1 = = 16 => = 17. 17Ø16 400 As=20.11+14.08= 34.19 2 > s,max = 6.342.
, VI-VI :
6 = = =0.096 %< .
. 17Ø18 400 As=25.45+10.18= 35.63 2 > s,max = 6.342. s .
, VI-VI 6 = = =0.100 %= .
V-V 5 = = =0.168 %> ;
IV- IV 4 = = =0.270 %> ;
, :
17Ø18 400 As=35.63 2 , 200 , s =50 .