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Tugas Akhir Perencanaan Struktur Factory Outlet dan Resto 2 Lantai
BAB 3 Prencanaan Atap Luas efdg
= ef x fg = 3 x 1,125= 3,375 m
2
Luas dghc = dg x gh
= 3 x 2,063 = 6,189 m
2
Luas chib = ch x hi
= 3 x 1,875 = 5,625 m
2
Luas bija = bi x ij
= 3 x 1,937 = 5,811 m
2
Gambar 3.27. Luasan Plafon Kuda-kuda Utama B Panjang ef,dg,ch,bi,aj
= 3,00 m Panjang fg
= 1,125 m Panjang gh
= 2,063 m Panjang hi
= 1,875 m Panjang ij
= 0,937 m
Luas efdg
= ef x fg = 3 x 1,125= 3,375 m
2
Luas dghc = dg x gh
= 3 x 2,063 = 6,189 m
2 a
b c
d e
f g
h i
j
a b
c d
e
f g
h i
j
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98
Tugas Akhir Perencanaan Struktur Factory Outlet dan Resto 2 Lantai
BAB 3 Prencanaan Atap Luas chib
= ch x hi = 3 x 1,875 = 5,625 m
2
Luas bija = bi x ij
= 3 x 0,937 = 2,811 m
2
3.7.3. Perhitungan Pembebanan Kuda-kuda Utama B
Data-data pembebanan : Berat gording
= 11 kgm Jarak antar kuda-kuda utama = 3,00 m
Berat penutup atap = 50 kgm
2
Berat profil = 25 kgm
Gambar 3.28. Pembebanan Kuda - Kuda utama B akibat beban mati
Perhitungan Beban a.
Beban Mati
Beban P
1
= P
7
a Beban gording
= Berat profil gording x panjang gording
= 11 x 3 = 33 kg b
Beban atap = Luasan atap bija x Berat atap
= 5,811 x 50 = 290,55 kg
1 2
3 4
5 6
13 15
14 16
17 18
19 20
21 7
8 9
10 11
12 P1
P2 P3
P4 P5
P6 P7
P8 P9
P10 P11
P12
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99
Tugas Akhir Perencanaan Struktur Factory Outlet dan Resto 2 Lantai
BAB 3 Prencanaan Atap
c Beban kuda-kuda
= ½ x Btg 7 + 1 x berat profil kuda kuda = ½ x 2,165 + 1,875 x 25 = 50,5 kg
d Beban plat sambung = 30
x beban kuda-kuda = 0,3 x 50,5 = 15,15 kg
e Beban bracing
= 10 x beban kuda-kuda
= 0,1 x 50,5 = 5,05 kg f
Beban plafon = Luasan x berat plafon
= 2,811 x 18 = 50,6 kg
Beban P
2
=P
6
a Beban gording
= Berat profil gording x panjang gording
= 11 x 3 = 33 kg b
Beban atap = Luasan atap bchi x berat atap
= 5,625 x 50 = 281,25 kg c
Beban kuda-kuda = ½ x Btg8 + 14 + 13 + 7 x berat profil kuda kuda
= ½ x 2,165 + 2,165 + 1,083 + 2,165 x 25 = 94,72 kg
d Beban plat sambung = 30
x beban kuda-kuda = 0,3 x 94,72 = 28,42 kg
e Beban bracing
= 10 x beban kuda-kuda
= 0,1 x 94,72 = 9,47 kg
Beban P
3
=P
5
a Beban gording
= Berat profil gording x panjang gording
= 11 x 3 = 33 kg b
Beban atap = Luasan atap cdgh x berat atap
= 6,189 x 50 = 309,45 kg c
Beban kuda-kuda = ½ x Btg8 + 9 + 15 + 16 x berat profil kuda kuda
= ½ x 2,165 + 2,598 + 2,165 + 3,122 x 25 = 125,625 kg
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Tugas Akhir Perencanaan Struktur Factory Outlet dan Resto 2 Lantai
BAB 3 Prencanaan Atap
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