VI.2.8.4 Transfer beban angin kelanati jembatan
TEW=0.0012CwVw2= 1.764 knm h= 2m
x= 1.75 PEW=20.5hXTEWL2 = 20.16
e= -0.1
VI.2.9 Beban Gempa
VI.2.9.1 Beban Gempa Statik Ekivalen 1.a
Beban gempa arah memanjang jembatanarah x
Lb= 3.05, b=By= 20, K- = 300, h=b7= 1 Ic=112bh3=
1.666667,fc=0.83K10= 24.9 Ec=4700fc0.5= 23452.95= 23452953 kPa
Kp=3EcIcLb3= 4133025, PMSstr atas= 2255.308 PMSstr bwh= 13766.21,Wtp= 9138.413
T=2πWTPgKp0.5= 0.001389 C= 0.36156,n= 1, F=1.25-0.025n= 1.225
s=1.0F= 1.225,Kh=CS= 0.442911 TEQ=KhIWt= 0.44291 Wt, I= 1
h1 1.35 m
h6 0.8 m
h11 1.2 m
h2 1.3 m
h7 4.7 m
c 1.6 M
h3 0.7 m
h8 0.6 m
d 0.8 M
h4 0.75 m
h9 0.6 m
h13 4.35 M
h5 0.75 m
h10 1.2 m
H 7.5 M
Universitas Sumatera Utara
Distribusi beban gempa pada abutment
No Berat
TEQ Uraian
lengan terhadap
titik O
Besar MEQ
WtKn Kn
y Knm
Struktur atas
P
MS
2255.31 999.101
7.5 7.5
7493.26 P
MA
351 155.493
7.5 7.5
1166.2 ABUTMENT
1 236.25
104.659 6.825
714.296 2
357.5 158.373
5.5 871.049
3 262.5
116.288 4.5
523.294 4
281.25 124.594
3.9 485.916
5 225
99.675 3.775
376.273 6
240 106.32
3.133 333.101
7 2350
1041.05 2.35
2446.47 8
870 385.41
1.4 539.574
9 930
411.99 1.4
576.786 10
1740 770.82
0.6 462.492
11 1860
823.98 0.6
494.388 WINGWALL
12 79.3125
35.1354 6.825
239.799 13
107.5 47.6225
5.15 245.256
14 40.3125
17.8584 3.775
67.4156 15
136 60.248
2.6 156.645
16 51
22.593 1.6
36.1488 17
14.0625 6.22969
3.65 22.7384
18 10
4.43 4.7
20.821 TANAH
19 835.92
370.313 6.825
2527.38 20
3480 1541.64
3.975 6128.02
21 281.25
124.594 3.65
454.767 22
600 265.8
2.6 691.08
23 870
385.41 1.6
616.656 TEQ=
8179.63 MEQ=
27689.8 Letak titik tangkap gaya horizontal gempa,
Yeq=MEQTEQ= 3.38522
1.b Beban gempa arah melintang jembatanarah Y
Universitas Sumatera Utara
c=112hb3= 666.667 Kp=3EcIcLb3= 1653209945
T= 0.004669077 C= 0.36156
S = 1.225 Kh= 0.442911
TEQ=KhIWt= 0.442911 Wt PMS= 13766.21
PMA= 351 Wt=PMS+PMA= 14117.21
TEQ=KhIWt= 6252.667598 MEQ= 21166.64846
VI.2.9.2 Tekanan Tanah Dinamis Akibat Gempa
H= 7.5, By= 20, Kh= 0.442911 φ= 0.3202531 = 18.2544, Ka= 0.52114 = -5.5113,Ws= 17.2
ϴ=0.4169431= 23.7658 cos2φ-
ϴ= 0.9906, KaG= 1.18295 ΔKaG=KaG-Ka= 0.66181
TEQ=12H2WsΔKaGBy= 6402.98483 yeq=23H=5
MEQ=TEQYEQ= 32014.9
VI.2.10 Gesekan Pada Perletakan
Universitas Sumatera Utara
µ= 0.18, PMS= 2255.3076 PMA= 351,PT= 2606.31
TFB= 469.135,YFB=4.7 MFB=TFBYFB= 2204.94
YFB=h7-h9-h11= 2.9 MFB=TFBYFB = 1360.49
VI.3 KOMBINASI BEBAN KERJA REKAPITULASI BEBAN KERJA
Kategori