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Bendung Tebanah
Momen tahan dan Guling Terhadap Titik 12 Perhitungan lengan
Gaya (ton) Jarak Pada Titik 12 (x) Jarak Pada Titik 12 (y) Momen Pada Titik 12 (ton.m)
2.25 5.76 12.96
4.7289887312194 2.4 11.3495729549265
-4.728988731219 4.64 -21.942507712858
2.265 7.51 17.01015
16.0923 3.4 54.71382
24.53125 3.43 84.1421875
∑MpW -21.942507712858 180.175730454927
Kondisi Setinggi MercuSegmen ∑v ∑h ∑Mp ∑Mg
Tekanan Air Aktif 22.58255 97.972994Tekanan Tanah Aktif 1.1724075 3.5172225Tekanan Lumpur 2.458434 15.43896552Uplift 50.957751634 7.41693333333 313.080797908 11.3661058824Berat Sendiri 95.78624 603.503055467
Tekanan Air Aktif 27.41255 157.945172Tekanan Air Pasif 7.25239 13.995767Tekanan Tanah Aktif 1.1724075 3.5172225Tekanan Lumpur 4.509252 29.65113426Uplift 76.3254771242 12.9235333333 447.652149281 14.9759176471Berat Sendiri 95.78624 603.503055467
∑ 172.111717124 53.2701328333 1051.15520475 220.085213407Kontrol Guling : Kontrol geser:
∑Mp≥ Sf
∑H∑Mg ∑V
1051.15520474771≥ 1.5
53.2701328333220.085213407059 19.4607628758
4.77612824812336 ≥ 1.5 OK !!!! 2.73730958921
Kontrol Eksentrisitas :
e =∑M
-B
∑V 2
=1271.24041815
-12.3
172.111717124 2
e 1.23613523469
Kontrol Tegangan Tanah :
σ ∑Vx
B
σmax 172.112x 1.60299279741
12.3
σmax 22.4303937317
σmax 22.4303937317 ≤ 40
σmin 172.112x 0.39700720259
12.3
σmin 5.55525132911
(1 ± 6e/B)
≥fS
0.652
≥ 0.325 OK !!!!
≤ B6
≤ 12.36
≤ 2.05 OK !!!!
Perhitungan Beban VertikalSegmen Deskripsi W
Wc1 0.50 x 8.50 x 2.20 9.35Wc2 0.50 x 8.00 x 2.00 x 2.20 17.60Wc3 6.50 x 2.00 x 2.20 28.60Wc4 0.50 x 1.00 x 2.00 x 2.20 2.20We1 2.00 x 0.50 x 1.70 1.70We2 0.50 x 2.00 x 8.00 x 1.70 13.60We3 3.00 x 8.50 x 1.70 43.35
q 1.00 x 5.00 5.00Total 121.40
Perhitungan Beban Horizontal
Ka = 0.33 q = 100Kp = 0.01 = 1.65
qa1 = Ka x q x = 10.89qa2 = Ka x H x =qp1 = Kp x h1 x =
Segmen Deskripsi H X W x X
Ɣsoil
Ɣsoil
Ɣsoil
Pa1 0.33 x 10.50 3.47 5.25 18.19Pa2 0.50 x 6.94 x 10.50 36.46 3.50 127.60Pp -0.50 x 12.02 x 2.00 -12.02 0.67 -8.05
Total 27.90 137.73
Perhitungan Beban VertikalSegmen Deskripsi W
Wc1 0.50 x 8.50 x 2.20 9.35Wc2 0.50 x 8.00 x 2.00 x 2.20 17.60Wc3 6.50 x 2.00 x 2.20 28.60Wc4 0.50 x 1.00 x 2.00 x 2.20 2.20We1 2.00 x 0.50 x 1.70 1.70We2 0.50 x 2.00 x 8.00 x 1.70 13.60We3 3.00 x 8.50 x 1.70 43.35
q 1.00 x 5.00 5.00Total 121.40
Perhitungan Beban Horizontal
Ka = 0.33 q = 100Kp = 0.01 = 1.65
qa1 = Ka x q x = 10.89qa2 = Ka x H x =
Ɣsoil
Ɣsoil
qp1 = Kp x h1 x =
Segmen Deskripsi H X W x XPa1 0.33 x 10.50 3.47 5.25 18.19Pa2 0.50 x 6.94 x 10.50 36.46 3.50 127.60Pp -0.50 x 12.02 x 2.00 -12.02 0.67 -8.05
X W x X2.25 21.043.17 55.793.25 92.956.83 15.033.50 5.953.83 52.096.00 260.105.00 25.00
527.94
Perhitungan Beban VertikalDeskripsi W X
0.50 x 8.50 x 2.20 9.35 2.250.50 x 8.00 x 2.00 x 2.20 17.60 3.176.50 x 2.00 x 2.20 28.60 3.250.50 x 1.00 x 2.00 x 2.20 2.20 6.832.00 x 0.50 x 1.70 1.70 3.500.50 x 2.00 x 8.00 x 1.70 13.60 3.833.00 x 8.50 x 1.70 43.35 6.001.00 x 5.00 5.00 5.00
Total 121.40
Perhitungan Beban Horizontal
= 0.33 q = 100= 0.01 = 1.65
= Ka x q x = 10.89= Ka x H x == Kp x h1 x =
Deskripsi H X W x X
Ɣsoil
Ɣsoil
Ɣsoil
0.33 x 10.50 3.47 5.25 18.190.50 x 6.94 x 10.50 36.46 3.50 127.60-0.50 x 12.02 x 2.00 -12.02 0.67 -8.05