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6316 6,34,0 . 4,9 . , , . v=5900 /2, , , . 3. . . , 60%.
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. . , 1350 ; 1330; 1300 .
, . : , , , .
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1.
, /2 | , gf | , /2 | |
: 1. , δ=0,1707, r=2500/3 2. - , δ=0,02, r=1800/3 3. , δ=0,05, r=2600/3 | 4,27 0,36 1,30 | 1,35 1,35 1,35 | 5,77 0,486 1,755 |
qn = 5,93 | - | q = 8,011 | |
5,9 | 1,5 | 8,85 | |
11,83 | - | 16,861 |
, fctm=2,6 Ma, fcm=33 M,fcd=fck/ =25/1,5=16,67; S500, fyd = 450 , fyk=500, fywd=263 S240, fyd=218 , . 3. 260 .
b x h = 13,50x26 ( b ; h - ). . 145 . . . :
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hf = 0,9140 = 130,5
bf = (1330 7145)/8 = 39,375 40 .
7 145 , 40
1 1330 , /:
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