PERHITUNGAN STRUKTUR ATAP
1. Rencana Atap Bentang
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31.2
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m
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Bentang kuda – kuda
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31.2
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m
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Sudut kemiringan
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25
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°
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Jarak kuda–kuda (JKD)
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5.6
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m
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Alat sambung = Baut
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Baut
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Mutu baja ST. 37
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1600
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Kg/cm2
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E Baja
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=
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2,100,000
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Kg/cm2
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Penutup atap
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Asbes
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Beban atap
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11
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Kg/cm2
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Berat kuda–kuda
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Kg/cm2
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Beban pekerja (PLL)
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100
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Kg
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Beban air hujan
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10
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Kg
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Tekanan angin
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25
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Kg/m
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Berat plafond
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18
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Kg/cm2
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2.1. Panjang Batang dan Berat Kuda-kuda
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Rencana Profil kuda-kuda
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80 x 80 x 12
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Berat per m'
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14.1
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kg
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Berat kuda-kuda per m'
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28.2
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kg
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( doubel profil)
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Perhitungan Panjang kuda-kuda
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1
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Batang miring
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48
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x
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1.43
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=
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68.64
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m'
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2
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Batang Diagonal
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24
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x
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1.36
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=
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32.64
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m'
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3
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Batang vertikal
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24
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x
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1.00
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=
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24
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m'
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Jumlah
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125.28
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m'
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Perhitungan Berat
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1
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Batang miring
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68.64
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x
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28.2
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=
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1935.65
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kg
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2
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Batang Diagonal
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32.64
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x
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28.2
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=
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920.45
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kg
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3
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Batang vertikal
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24
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x
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28.2
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=
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676.80
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kg
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Jumlah
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=
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3532.90
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kg
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