7/26/2019 Roz Nica

1/2

* Opteretuvawe:

. nagib na krovna ramnina 24 %

0.250

a = 14.036

0.2425

0.9701

0.80

- vertikalno:

. od kroven pokriva~+plafon 0.30 * 0.80 0.24

. od sopstvena teina 0.!0 * 0.80 0.08

0.32

. od sneg !.00 * 0.80 0.80

0.80

* Opteretuvawe na rog:

" !.!2

* #tati~ka $ema:

3.+2.

4.!0 !.30

0.&! !.!

!0.00

. 'imen(ionirawe:

. usvoen presek: 10/10 cm !00.00

)30.00

!).00

)30.00

** POS R Rog- L=3.5+2.5 m.

tg a"

sin a"

cos a"

a" (m)

(kN/m1)

(kN/m1)

q" (kN/m1)

(kN/m1)

s" (kN/m1)

qN

I" (q+s) * cosa (kN/m1)

" (m)

. Itovaren slu~a ,sopstvena teina + sneg-:

!"

N + RB

N" qN

I * L / 2" (kN) !"T + R

B

T" qN

I*L/2" (kN)

ma# $N" qNI * L2/ 8" (%n*m) min $T" q&

I * L2/ 8" (%n*m)

'" (sm)

" (sm2)

I" (sm4)

W" (sm3)

I" (sm4)

" qn +

qn ,

7/26/2019 Roz Nica

2/2

!).00

kontrola na napregawa:

.

uuu = 1.39 8.00

kontrola na ugib:

= 0.67 (sm) o

o = / 150 = 1.80 (sm)

W" (sm3)

Itovaren slu~a:

ma# $1

N ma# $1

&

s1= uuuA (kN/cm2) (kN/cm2)

W#

W

ma# 1= s1(kN/m2 ) * 2 (m) / (10 * ' (sm))