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Perencanaan Struktur dan Rencana Anggaran Biaya
Gedung Sekolah2 Lantai
BAB 3 Perencanaan Atap
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22 23
24 25
26 27 28
29 30
31 32
33 34
35 36 37
P1 P2
P3 P4
P5 P6
P7 P8
P9 P10
P11
P20 P19 P18 P17 P16 P15 P14 P13 P12
Gambar 3.20. Pembebanan Kuda- kuda Utama akibat Beban Mati
a. Beban Mati 1 Beban P1 = P11
a Beban gording =
Berat profil gording × Panjang Gording = 11 × 3,75 = 41,25 kg
b Beban atap = Luasan × Berat atap
= 8,663× 50 = 433,15 kg c Beban plafon
= Luasan × berat plafon
= 3,75 × 18 = 67,5 kg d Beban kuda-kuda
= ½ × Btg 1 + 11 × berat profil kuda kuda = ½ × 2,00 + 2,31 × 25
= 53,875 kg e Beban plat sambung = 30 × beban kuda-kuda
= 30 × 53,875 = 16,163 kg f Beban bracing
= 10 × beban kuda-kuda = 10 × 53,875 = 5,39 kg
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Perencanaan Struktur dan Rencana Anggaran Biaya
Gedung Sekolah2 Lantai
BAB 3 Perencanaan Atap
2 Beban P2 = P10
a Beban gording =
Berat profil gording × Panjang Gording = 11 × 3,75= 41,25 kg
b Beban atap = Luasan × Berat atap
= 7,575 × 50 = 378,75 kg c Beban kuda-kuda
= ½ × Btg 11+21+22+12 × berat profil kuda kuda = ½ × 2,31 + 1,15 + 2,10 + 2,02 × 25
= 94,75 kg d Beban plat sambung = 30 × beban kuda-kuda
= 30 × 94,75 = 28,425 kg e Beban bracing
= 10 × beban kuda-kuda = 10 × 94,75 = 9,475 kg
3 Beban P3 = P9
a Beban gording =
Berat profil gording × Panjang Gording = 11 × 3,75 = 41,25 kg
b Beban atap = Luasan × Berat atap
= 7,575 × 50 = 378,75 kg c Beban kuda-kuda
= ½ × Btg 12+23+24+13 × berat profil kuda kuda = ½ × 2,02 + 2,16 + 2,78 + 2,02 × 25
= 112,25 kg d Beban plat sambung = 30 × beban kuda-kuda
= 30 × 112,25 = 33,675 kg e Beban bracing
= 10 × beban kuda-kuda = 10 × 112,25 = 11,225 kg
4 Beban P4 = P8
a Beban gording =
Berat profil gording × Panjang Gording = 11 × 3,75 = 41,25 kg
b Beban atap = Luasan × Berat atap
= 7,353 × 50 = 367,65 kg
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Perencanaan Struktur dan Rencana Anggaran Biaya
Gedung Sekolah2 Lantai
BAB 3 Perencanaan Atap c Beban kuda-kuda
= ½ × Btg 13+25+26+14 × berat profil kuda kuda = ½ × 2,02 + 3,18 + 3,63 + 2,02 × 25
= 135,625 kg d Beban plat sambung = 30 × beban kuda-kuda
= 30 × 135,625 = 40,688 kg e Beban bracing
= 10 × beban kuda-kuda = 10 × 135,625 = 13,563 kg
5 Beban P5 = P7
a Beban gording =
Berat profil gording × Panjang Gording = 11 × 3,75 = 41,25 kg
b Beban atap = Luasan × Berat atap
= 5,03 × 50 = 251,5 kg c Beban kuda-kuda
= ½ × Btg 14+27+15 × berat profil kuda kuda = ½ × 2,02 + 4,19 + 2,02 × 25
= 102,875 kg d Beban plat sambung = 30 × beban kuda-kuda
= 30 × 102,875 = 30,863 kg e Beban bracing
= 10 × beban kuda-kuda = 10 × 102,875 = 10,288 kg
6 Beban P6
a Beban gording =
Berat profil gording × Panjang Gording = 11 × 2 = 22 kg
b Beban atap = 2 x Luasan × Berat atap
= 2 x 1,943 × 50 = 97,15 kg c Beban kuda-kuda
= ½×Btg15+28+29+30+16×berat profil kuda kuda = ½ × 2,02 + 5,48 + 5,20+5,48+2,02 × 25
= 252,5 kg
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Perencanaan Struktur dan Rencana Anggaran Biaya
Gedung Sekolah2 Lantai
BAB 3 Perencanaan Atap d Beban plat sambung = 30 × beban kuda-kuda
= 30 × 252,5 = 75,75 kg e Beban bracing
= 10 × beban kuda-kuda = 10 × 252,5 = 25,25 kg
f Beban reaksi = 2 x reaksi jurai + reaksi stengah kuda-kuda
= 2 x 126 + 411 = 663 kg
7 Beban P12 = P20
a Beban plafon =
Luasan × berat plafon = 7,013 × 18 = 126,234 kg
b Beban kuda-kuda = ½ × Btg 9 + 36 + 37+10 ×berat profil kuda kuda
= ½ × 1,75 + 2,10 + 1,15+2 × 25 = 87,5 kg
c Beban plat sambung = 30 × beban kuda-kuda = 30 × 87,5 = 26,25 kg
d Beban bracing = 10 × beban kuda-kuda
= 10 × 87,5 = 8,75 kg
8 Beban P13= P19
a Beban plafon =
Luasan × berat plafon = 6,566 × 18 = 118,188 kg
b Beban kuda-kuda = ½ × Btg 8+35+36+9 × berat profil kuda kuda
= ½ × 1,75 + 2,16 + 2,1 + 1,75 × 25 = 97 kg
c Beban plat sambung = 30 × beban kuda-kuda = 30 ×97 = 29,1 kg
d Beban bracing = 10 × beban kuda-kuda
= 10 × 97 = 9,7 kg
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Perencanaan Struktur dan Rencana Anggaran Biaya
Gedung Sekolah2 Lantai
BAB 3 Perencanaan Atap
9 Beban P14 = P18
a Beban plafon =
Luasan × berat plafon = 6,37 × 18 = 114,66 kg
b Beban kuda-kuda = ½ × Btg 7+33+34+8 × berat profil kuda kuda
= ½ × 1,75 + 3,18 + 2,78 + 1,75 × 25 = 118,25 kg
c Beban plat sambung = 30 × beban kuda-kuda = 30 × 118,25 = 35,475 kg
d Beban bracing = 10 × beban kuda-kuda
= 10 × 118,25 = 11,825 kg
10 Beban P15 = P17
e Beban plafon =
Luasan × berat plafon = 5,03 × 18 = 90,54 kg
f Beban kuda-kuda = ½ × Btg 6+31+32+7 × berat profil kuda kuda
= ½ × 1,75 + 4,19 + 3,63 + 1,75 × 25 = 141,5 kg
g Beban plat sambung = 30 × beban kuda-kuda = 30 × 141,5 = 42,45 kg
h Beban bracing = 10 × beban kuda-kuda
= 10 × 141,5 = 14,15 kg
11 Beban P16
a Beban plafon =
2 × Luasan × berat plafon = 2 × 1,943 × 18 = 69,948 kg
b Beban kuda-kuda =½ × Btg 5+29+6 × berat profil kuda-kuda
= ½ × 1,75 + 5,2 + 1,75 × 25 = 108,75 kg
c Beban plat sambung = 30 × beban kuda-kuda = 30 × 108,75 = 32,625 kg
d Beban bracing = 10 × beban kuda-kuda
= 10 × 108,75 = 10,875 kg
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Perencanaan Struktur dan Rencana Anggaran Biaya
Gedung Sekolah2 Lantai
BAB 3 Perencanaan Atap e Beban reaksi
= 2 × reaksi jurai + reaksi ½ kuda-kuda = 2 × 146 kg + 77 kg = 369 kg
Tabel 3.16. Rekapitulasi Beban Mati Kuda-kuda Utama
b. Beban Hidup Beban hidup yang bekerja pada P1, P2, P3, P4, P5, P7, P8, P9,P10,P12,= 100 kg
