1. .
2. , .
3. : b = 300 , h = 800 ; = 70 ; A-III (Rs = 365 ); s = 2945 2 (6 Æ 25); gb2 = 0,9 ( ); 25 (Rb = 13 ); = 550 .
.
: ..
: . . _______________ (.. )
______________________2016 .
11
-
1. . .
2. (, , , )
3. : b = 300 , h = 800 ; = 50 ; -III (Rs = Rsc = 365 ); = 780 ;; 15 (Rb = 8,5 gb2 = 1,0).
.
: ..
: . . _______________ (.. )
______________________2016 .
12
-
1. .
2. (, , , )
3. : b = 300 , h = 700 ; = 50 , ' = 30 ; 30 (Rb = 15,5 gb2 = 0,9); A-III (Rs = 365 ); 
= 942 2 (3 Æ 20); = 580 .
.
: ..
: . . _______________ (.. )
________________2016 .
13
-
1. . . . . .
2. .
3. : b = 300 , h = 700 ; a = 70 , a = 30 ; 25 (Rb = 13 gb2 = 0,9); A-III (Rs = Rsc = 365 ); As = 4826 2 (6 Æ 32), 
= 339 2 (3 Æ 12); = 600 .
.
: ..
: . . _______________ (.. )
______________________2016 .
14
