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Jumat, 11 Agustus 2017

Cara menghitung volume buis beton / gorong-gorong

Volume buis beton/gorong-gorong
d1 = diameter luar
d2 = diameter dalam
t    = tebal beton / cincin
r2 =  ½ x d
rl  = r² + t
π   = 3.14
Luas beton/cincin    π x (rl² - r²)
volume = panjang x luas beton/cincin

Contoh : d2= 60 cm   t= 10 cm   p= 100 cm
Jadi         d2= 60cm= 0.6 m    t= 10cm= 0.1 m
                r² = ½ x d² = ½ x 0.60 = 0.30 m
                 rl = r² + t= 0.30+0.10 = 0.40 m
Luas penampang = π x (rl² - r²)
                                = 3.14 x (0.40²-0.30²)
                                = 3.14 x 0.017 = 0.2198 m²
Volume                  = 1.00 x 0.2198 = 0.2198 m³




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