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Tugas Akhir Perencanaan Struktur Gedung Sekolah 2 Lantai RAB
BAB 3 PERENCANAAN ATAP
3.7.3.1. Perhitungan Beban
1. Beban Mati
a. Beban P
1
= P
9
1. Beban gording =
berat profil gording × panjang gording is
= 11 × 4 = 44 kg
2. Beban atap = luas atap hrtj × berat atap
= 7,936 × 50 = 396,8 kg
3. Beban plat sambung = 30 × beban kuda-kuda = 30 × 9,38
= 2,814 kg 4. Beban bracing
= 10 × beban kuda-kuda = 10 × 9,38
= 0,938 kg 5. Beban plafond
= luas plafond hrtj × berat plafond
= 6,5 × 18 = 117 kg
b. Beban P
2
= P
8
1. Beban gording =
berat profil gording × panjang gording gq
= 11 × 4 = 44 kg
2. Beban atap = luas atap fprh × berat atap
= 6,104 × 50 = 305,2 kg
3. Beban plat sambung = 30 × beban kuda-kuda = 30 × 18,43
= 5,529 kg
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Tugas Akhir Perencanaan Struktur Gedung Sekolah 2 Lantai RAB
BAB 3 PERENCANAAN ATAP
4. Beban bracing = 10 × beban kuda-kuda
= 10 × 18,43 = 1,843 kg
c. Beban P
3
= P
7
1. Beban gording =
berat profil gording × panjang gording eo
= 11 × 4 = 44 kg
2. Beban atap = luas atap dnpf × berat atap
= 6,104 × 50 = 305,2 kg
3. Beban plat sambung = 30 × beban kuda-kuda = 30 × 23,51
= 7,053 kg 4. Beban bracing
= 10 × beban kuda-kuda = 10 × 23,51
= 2,351 kg d. Beban P
4
= P
6
1. Beban gording =
berat profil gording × panjang gording cm
= 11 × 4 = 44 kg
2. Beban atap = luas atap blnd × berat atap
= 6,104 × 50 = 305,2 kg
3. Beban plat sambung = 30 × beban kuda-kuda = 30 × 29,02
= 8,706 kg 4. Beban bracing
= 10 × beban kuda-kuda = 10 × 29,02
= 2,902 kg
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Tugas Akhir Perencanaan Struktur Gedung Sekolah 2 Lantai RAB
BAB 3 PERENCANAAN ATAP
e. Beban P
5
1. Beban atap = luas atap aklb × berat atap
= 3,052 × 50 = 152,6 kg
2. Beban plat sambung = 30 × beban kuda-kuda = 30 × 22,15
= 6,645 kg 3. Beban bracing
= 10 × beban kuda-kuda = 10 × 22,15
= 2,215 kg f. Beban P
10
= P
16
1. Beban plafond =
luas plafond fprh × berat plafond
= 5 × 18 = 90 kg
2. Beban plat sambung = 30 × beban kuda-kuda = 30 × 11,41
= 3,423 kg 3. Beban bracing
= 10 × beban kuda-kuda = 10 × 11,41
= 1,141 kg g. Beban P
11
= P
15
1. Beban plafond = luas plafond dnpf × berat plafond
= 5 × 18 = 90 kg
2. Beban plat sambung = 30 × beban kuda-kuda = 30 × 19,53
= 5,859 kg 3. Beban bracing
= 10 × beban kuda-kuda = 10 × 19,53
= 1,953 kg
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Tugas Akhir Perencanaan Struktur Gedung Sekolah 2 Lantai RAB
BAB 3 PERENCANAAN ATAP
h. Beban P
12
= P
14
1. Beban plafond = luas plafond blnd × berat plafond
= 5 × 18 = 90 kg
2. Beban plat sambung = 30 × beban kuda-kuda = 30 × 24,6
= 7,38 kg 3. Beban bracing
= 10 × beban kuda-kuda = 10 × 24,6
= 2,46 kg i.
Beban P
13
1. Beban plafond =
luas plafond aklb × berat plafond
= 2,5 × 18 = 45 kg
2. Beban plat sambung = 30 × beban kuda-kuda = 30 × 39,94
= 11,982 kg 3. Beban bracing
= 10 × beban kuda-kuda = 10 × 39,94
= 3,994 kg
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Tugas Akhir Perencanaan Struktur Gedung Sekolah 2 Lantai RAB
BAB 3 PERENCANAAN ATAP
Tabel 3.30. Rekapitulasi Beban Mati Kuda–Kuda Utama A
Beban Beban
Gording kg
Beban Atap
kg Beban
Plat Sambung
kg Beban
Bracing kg
Beban Plafond
kg Jumlah
Beban kg
Input SAP
kg P
1
= P
9
44 396,8
2,814 0,938
117 561,552
562 P
2
= P
8
44 305,2
5,529 1,843
--- 356,572
357 P
3
= P
7
44 305,2
7,053 2,351
--- 358,604
359 P
4
= P
6
44 305,2
8,706 2,902
--- 360,808
361 P
5
--- 152,6
6,645 2,215
--- 161,46
162 P
10
= P
16
--- ---
3,423 1,141
90 94,564
95 P
11
= P
15
--- ---
5,859 1,953
90 97,812
98 P
12
= P
14
--- ---
7,38 2,46
90 99,84
100 P
13
--- ---
11,982 3,994
45 60,976
61
2. Beban Hidup
Beban hidup yang bekerja pada P
1
, P
2
, P
3
, P
4,
P
5,
P
6,
P
7,
P
8,
P
9
= 100 kg
3. Beban Hujan
a. Beban P
1
= beban hujan × luas atap hrtj
= 12 × 7,936 = 95,232 kg
b. Beban P
2
= beban hujan × luas atap fprh
= 12 × 6,104 = 73,248 kg
c. Beban P
3
= beban hujan × luas atap dnpf
= 12 × 6,104 = 73,248 kg
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Tugas Akhir Perencanaan Struktur Gedung Sekolah 2 Lantai RAB
BAB 3 PERENCANAAN ATAP
d. Beban P
4
= beban hujan × luas atap blnd
= 12 × 6,104 = 73,248 kg
e. Beban P
5
= beban hujan × luas atap aklb
= 12 × 3,052 = 36,624 kg
Tabel 3.31. Rekapitulasi Beban Hujan Kuda-Kuda Utama A Beban
Beban Hujan kg
Input SAP kg
P
1
95,232 96
P
2
73,248 74
P
3
73,248 74
P
4
73,248 74
P
5
36,624 37
5. Beban Angin
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