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3.5.1 Penghitungan Lengkung Vertikal
3.5.1.1 PVI
1
Gambar 3.13 Lengkung Vertikal PVI
1
Data – data :
Stationing PVI
1
= 0+300 Elevasi PVI
1
= 662,9743 m Vr
= 80 kmjam g
1
= 4,46 g
2
= 0,95
51 ,
3 46
, 4
0,95
1 2
g
g A
1 Mencari Panjang Lengkung Vertikal
a. Syarat keluwesan bentuk
m V
Lv 48
80 6
, 6
,
b. Syarat drainase
m A
Lv 4
, 140
51 ,
3 40
40
c. Syarat kenyamanan pengemudi
m V
A Lv
12 ,
59 380
80 51
, 3
380
2 2
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d. Pengurangan goncangan
m V
A Lv
4 ,
62 360
80 51
, 3
360
2 2
e. Syarat perjalanan 3 detik
m ik
t V
Lv
67 ,
66 det
3 3600
1000 80
Diambil Lv terbesar, yaitu = 140,4 m
145 m
m Lv
A Ev
636 ,
800 145
51 ,
3 800
2 1
1
2 1
X Lv
A Y
2 3
3
2 1
X Lv
A Y
m 0189
, 5
, 12
145 51
, 3
2 1
2
m 3336
, 5
, 52
145 51
, 3
2 1
2
2 2
2
2 1
X Lv
A Y
m 1278
, 5
, 32
145 51
, 3
2 1
2
2 Stationing Lengkung Vertikal PVI
1
STA a = Sta PVI
1
–
1 2
Lv = 0+300
–
145 2
1
= 0+227,5 m STA b = 0+240
STA c = 0+260 STA d = 0+280
STA e = Sta PVI
1
= 0+300 STA f = 0+320
STA g = 0+340
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STA h = 0+360 STA i = Sta PVI
1
+
1 2
Lv = 0+300 +
145 2
1
= 0+372,5 m
3 Elevasi Lengkung Vertikal
Elevasi a = Elevasi PVI
1
-
1
2 1
g Lv
= 662,9743 -
46 ,
4 145
2 1
= 659,7408 m Elevasi b
= Elevasi PVI
1
-
1
g X
- Y
1
= 662,9743 -
46 ,
4 60
- 0,0189
= 660,2794 m Elevasi c
= Elevasi PVI
1
-
1
g X
- Y
2
= 662,9743 -
46 ,
4 40
- 0,1278
= 661,0625 m Elevasi d
= Elevasi PVI
1
-
1
g X
- Y
3
= 662,9743 -
46 ,
4 20
- 0,3336
= 661,7487 m Elevasi e
= Elevasi PVI
1
- Ev = 662,9743 - 0,636
= 662,3383 m Elevasi f
= Elevasi PVI
1
-
2
g X
- Y
3
= 662,9743 -
95 ,
20
- 0,3336 = 662,4507 m
Elevasi g = Elevasi PVI
1
-
2
g X
- Y
2
= 662,9743 -
95 ,
40
- 0,1278 = 662,4665 m
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Elevasi h = Elevasi PVI
1
-
2
g X
- Y
1
= 662,9743 -
95 ,
60
- 0,0189 = 662,3854 m
Elevasi i = Elevasi PVI
1
-
2
2 1
g Lv
= 662,9743 -
95 ,
145 2
1
= 662,2855 m
3.5.1.2 PVI
2
Gambar 3.14 Lengkung Vertikal PVI
2
Data – data :
Stationing PVI
2
= 0+530 Elevasi PVI
2
= 660,6911 m Vr
= 80 kmjam g
2
= 0,95 g
3
= 2,17
22 ,
1 95
, 2,17
2 3
g
g A
1 Mencari Panjang Lengkung Vertikal
a. Syarat keluwesan bentuk
m V
Lv 48
80 6
, 6
,
commit to user
b. Syarat drainase
m A
Lv 8
, 48
22 ,
1 40
40
c. Syarat kenyamanan pengemudi
m V
A Lv
55 ,
20 380
80 22
, 1
380
2 2
d. Pengurangan goncangan
m V
A Lv
69 ,
21 360
80 22
, 1
360
2 2
e. Syarat perjalanan 3 detik
m ik
t V
Lv
67 ,
66 det
3 3600
1000 80
Diambil Lv terbesar, yaitu = 66,67 m
80 m
m Lv
A Ev
122 ,
800 80
22 ,
1 800
2 1
1
2 1
X Lv
A Y
2 3
3
2 1
X Lv
A Y
m 007625
, 10
80 22
, 1
2 1
2
m 06862
, 30
80 22
, 1
2 1
2
2 2
2
2 1
X Lv
A Y
m 0305
, 20
80 22
, 1
2 1
2
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2 Stationing Lengkung Vertikal PVI
2
STA a = Sta PVI
2
–
1 2
Lv = 0+530
–
80 2
1
= 0+490 m STA b = 0+500
STA c = 0+510 STA d = 0+520
STA e = Sta PVI
2
= 0+530 STA f = 0+540
STA g = 0+550 STA h = 0+560
STA i = Sta PVI
2
+
1 2
Lv = 0+530 +
80 2
1
= 0+570 m
3 Elevasi Lengkung Vertikal
Elevasi a = Elevasi PVI
2
+
2
2 1
g Lv
= 660,6911 +
95 ,
80 2
1
= 661,0711 m
Elevasi b = Elevasi PVI
2
+
2
g X
+ Y
1
= 660,6911 +
95 ,
30
+ 0,007625 = 660,9837 m
Elevasi c = Elevasi PVI
2
+
2
g X
+ Y
2
= 660,6911 +
95 ,
20
+ 0,0305 = 660,9116 m
Elevasi d = Elevasi PVI
2
+
2
g X
+ Y
3
= 660,6911 +
95 ,
10
+ 0,06862 = 660,8547 m
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Elevasi e = Elevasi PVI