SIFAT PENAMPANG SEBELUM KOMPOSIT (GIRDER SAJA) H b1 t1' t1 t2 bagian penampang (1) I II III IV V I' 170 b cm (2) 80 60 20 50 70 64

yt b2 cgc

yb = Total (6) / Total (4) yt = H - yb A = Total (4) I = Total (10) q bs = A. BV beton

t3 yb

t4H b1' b1 b2 b3 t1 t2 t3 t4 t1' 170 64 80 20 70 13 12 25 25 7

b3

t cm (3) 13 12 125 25 25 7

A cm2 (4) 1040 360 2500 625 1750 448 6,723

y thd bawah cm (5) 156.5 146 87.5 33.33333 12.5 166.5

Axy bawah cm3 (6) 162,760 52,560 218,750 20,833 21,875 74,592 551,370

y thd cgc cm (7) 74 64 5 -48.68 -69.51 84

Ii cm4 (8) 14,647 2,880 3,255,208 21,701 91,146 1,829

Io cm4 (9) 5,770,316 1,473,982 75,280 1,481,041 8,455,989 3,197,882

I cm4 (10) 5,784,963 1,476,862 3,330,489 1,502,742 8,547,135 3,199,712 23,841,903

(6) / Total (4)

yb = 82.01254 cm yt = 87.98746 cm

cm cm cm cm cm cm cm cm cm cm

ax^2+bx+c=y

a 1 2 3 4 5 0 15 30 0 225 900 450 450 0.001333

b

c

0.004444 0.002667 0.001333 0 15 30 0 -0.04

-0.13333 -0.08 -0.04 0.4 0.4 0.4 -0.4

1.1 0.7 0.4 0.4 0.1 0.4 0.2 0.6

POTONGAN (m) TENDON 1 TENDON 2 TENDON 3 TENDON 4 TENDON 5

POTONGAN (m) TENDON 1 TENDON 2 TENDON 3 TENDON 4 TENDON 5

nos tendon

16 12 12

(F2 - F1) / F1 = - ( K.L+ m .a ).LDi mana : F1 = gaya pratekan di tendon di suatu titik arah angkur hidup F1 = gaya pratekan di tendon di suatu titik arah angkur hidup K = Koef. Wobble ( /m) m = Koef. Kelengkungan

0.007 0.15

L = panjang kabel diukur dari titik 1 dan 2 yang ditinjau (m) a = sudut yang terbentuk dari garis singgung di titik 1 dengan garis singgung di titik 2 (radian) F2 = F1 -(K.L +u.a).L.F1

POSISI TENDON THD SISI BAWAH GIRDER 0 1 2 3 4 5 6 7 8 9 10

110 97.11 85.11 70 62.27 55.07 40 36.13 32.53

74 63.78 54.44 48.4 42.27 36.67 29.2 26.13 23.33

46 38.44 31.78 31.6 27.07 23.07 20.8 18.53 16.53

26 21.11 19.6 16.67 14.8 13.33

POSISI TENDON THD PUSAT GIRDER CGC Aps (cm2) Jacking Force 0 1 2 3 4 5 6 7 8 9

yb = yt = 10

15.7936 11.8452 11.8452

225.1 168.8 168.8

28.0 15.1 3.1 -8.0 -18.2 -27.6 -36.0 -43.6 -50.2 -56.0 -60.9 -12.0 -19.7 -26.9 -33.6 -39.7 -45.3 -50.4 -54.9 -58.9 -62.4 -65.3 -42.0 -45.9 -49.5 -52.8 -55.9 -58.7 -61.2 -63.5 -65.5 -67.2 -68.7

/m

ggung di titik 2 (radian)

a (rad) a (rad) a (rad) 225.1 112.5 112.5 91.0 203.5 168.8 168.8

0.13 0.08 0.04

0.12 0.07 0.04

0.11 0.07 0.03

0.10 0.06 0.03

0.09 0.06 0.03

0.08 0.05 0.03

0.08 0.05 0.02

0.07 0.04 0.02

0.06 0.03 0.02

0.05 0.03 0.01

168.8 168.8

109.6 106.8 104.3 102 99.83 97.86 96.07 94.44 92.96 91.63 89.85 199.4 165.7 162.7 159.9 157.3 154.9 152.7 150.6 148.6 146.8 145.1 166.6 164.6 162.6 160.7 158.9 157.2 155.6 154 152.5 151.1

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

17.11 14.27 12.13

14 11.78 10.44 12.4 11.07 10.27 11.2 10.53 10.13

10 10.44 11.78 10 10.27 11.07 10 10.13 10.53

14 17.11 21.11 12.4 14.27 16.67 11.2 12.13 13.33

26 31.78 38.44 19.6 23.07 27.07 14.8 16.53 18.53

46 54.44 31.6 36.67 20.8 23.33

82.012544 cm 87.987456 cm 11 12 13

14

15

16

17

18

19

20

21

22

23

24

25

-64.9 -68.0 -70.2 -71.6 -72.0 -71.6 -70.2 -68.0 -64.9 -60.9 -56.0 -50.2 -43.6 -36.0 -27.6 -67.7 -69.6 -70.9 -71.7 -72.0 -71.7 -70.9 -69.6 -67.7 -65.3 -62.4 -58.9 -54.9 -50.4 -45.3 -69.9 -70.8 -71.5 -71.9 -72.0 -71.9 -71.5 -70.8 -69.9 -68.7 -67.2 -65.5 -63.5 -61.2 -58.7

0.04 0.02 0.01

0.03 0.02 0.01

0.02 0.01 0.01

0.01 0.01 0.00

0.00 0.00 0.00

0.00 -0.01 -0.02 -0.03 -0.04 -0.05 -0.06 -0.07 -0.08 -0.08 0.00 -0.01 -0.01 -0.02 -0.02 -0.03 -0.03 -0.04 -0.05 -0.05 0.00 0.00 -0.01 -0.01 -0.01 -0.01 -0.02 -0.02 -0.02 -0.03 86 85.69 85.49 85.4 85.43 85.57 85.83 86.2 86.69

90.43 89.38 88.46 87.66 86.99 86.44

143.6 142.2 140.9 139.7 138.7 137.8 137 136.3 135.7 135.3 134.9 134.7 134.5 134.5 134.6 149.8 148.5 147.3 146.2 145.2 144.2 143.3 142.4 141.6 140.9 140.2 139.6 139 138.5 138.1

26

27

28

29

30

63.78 42.27 26.13

74 85.11 97.11 48.4 55.07 62.27 29.2 32.53 36.13

110 70 40

26

27

28

29

30

-18.2 -8.0 3.1 15.1 28.0 -39.7 -33.6 -26.9 -19.7 -12.0 -55.9 -52.8 -49.5 -45.9 -42.0

-0.09 -0.10 -0.11 -0.12 -0.13 -0.06 -0.06 -0.07 -0.07 -0.08 -0.03 -0.03 -0.03 -0.04 -0.04 87.3 88.03 88.88 89.85 90.96 109.6 112.5 203.5 134.8 135.1 135.5 136 136.6 137.7 137.4 137.1 136.9 136.7

24%