CALCULUL UNEI SPRIJINIRI

CARACTERISTICI SAPATURAN = 8H = 5.5 mB = 2.3 mL = 26 m

γp = 17.5 kN/m3Φ = 30 gradeσ = 10 gradeq = 17 kN/m

pa = 0.8 * PA = 29.90 kN/m2PA = γp*ht*ka= 37.37 kN/m2ht = H +he= 6.47 mhe = 0.97 mka = 0.33

GROSIMI t [mm] LATIMI l [m] LUNGIMI [m]INGUSTE LATE SCURTE LUNGI

28

7 - - 15 16 - -301 - - 2.75 3 - - 6

3848586875

DIMENSIONARE DULAPI O.distanta intre dulapi = 3 cm

PROPUN : 58 X 30q1 = l1 * pa = 9.87 kN/ml1 = 33 cml' = 1.0375 m

W = l*t2/6 = 168.2 cm3Mmax = (q1 * l'2)/8 = 1.33 kN*m

σ = Mmax / W = 78.93 daN/cm2

q/γp =tg2 ( 45 -Φ/2 ) =

GROSIMI [cm] LATIMI [cm]

10 12 15 19

3 - - 6

12 12 15 19 2515 15 17 19 25 3019 19 25 3025 25 3030 30

DIMENSIONARE DULAPI V.distanta intre dulapi = 1.0375 m

PROPUN: 12 X 25 cml'' = 1.08 m

q2 = l'' * pa = 32.29 kN/mW = l * t2 / 6 600 cm3

Mmax = q2*l''2/8 = 4.71 kN*mσ = Mmax / W = 78.46 daN/cm2

DIMENSIONARE SPRAITURI

PROPUN: d = 10 cmlf = 1.94 m

Aria sect = 78.50 cm2I = pi*d4/64 = 490.63 cm4

I min = 2.5λ = 77.76 rezilta Φ = 0.47σ = 49.76 daN/cm2N = 18.36 kN

EXTRAS MATERIALE

DENUMIRE BUCATI

DULAPI O.34 651 317 5

DULAPI V. 42 6

SPRAITURI 126 1.944

LUNGIMI [m]

N / ( Φ * A )=

LUNGIME[m]