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Pa6 = ½ x 2,332 m x 140 kg/m x (0,02 x 54,4623 – 0,4)

Modul 7 PERENCANAAN KUDA-KUDA (3) AKIBAT ANGIN KANAN Faktor koefisien angin :  1 = 30,9637 o , maka faktor koefisien angin = (+ 0,02  1 - 0,4)  2 = 54,4623 o , maka faktor koefisien angin = (+ 0,02  2 - 0,4). Untuk angin hisap, faktor koefisien angin

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Pa6 = ½ x 2,332 m x 140 kg/m x (0,02 x 54,4623 – 0,4)

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  1. Modul 7 PERENCANAAN KUDA-KUDA (3) AKIBAT ANGIN KANAN Faktor koefisien angin : 1 = 30,9637o , maka faktor koefisien angin = (+ 0,021 - 0,4) 2 = 54,4623o , maka faktor koefisien angin = (+ 0,022 - 0,4) Untuk angin hisap, faktor koefisien angin q angin = 40 kg/m2 x 3,5 m x Faktor koefisien = 140 kg/m x Faktor koefisien = (- 0,4) Pa1 = ½ x 1,72 m x 140 kg/m x 0,4 Pa2 = ½ x 1,72 m x 140 kg/m x 0,4 Pa3 = ½ x 2,332 m x 140 kg/m x 0,4 Pa4 = ½ x 2,332 m x 140 kg/m x 0,4 Pa5 = ½ x 2,332 m x 140 kg/m x (0,02 x 54,4623 o – 0,4) o Pa7 = ½ x 1,72 m x 140 kg/m x (0,02 x 30,9637o – 0,4) o = 48,16 kg = 48,16 kg = 65,29 kg = 65,29 kg = 112,51 kg = 112,51 kg = 26,4 kg = 26,4 kg Pa6 = ½ x 2,332 m x 140 kg/m x (0,02 x 54,4623 – 0,4) Pa8 = ½ x 1,72 m x 140 kg/m x (0,02 x 30,9637 – 0,4) 1 http://www.mercubuana.ac.id

  2.      Fy = 0, VA + Pa1 cos1 + S1 sin1 = 0 72,04 + 27,99 + 0,8137 S1 = 0 0,8137 S1 + 100,03 = 0 S1 = - 122,93 kg (tekan)  Fx = 0, S8 + S1 cos1 – HA – Pa1 sin1 = 0 S8 + (-122,93) (0,5812) – (-304,28) – 39,19 = 0 S8 – 71,45 + 304,28 – 39,19 = 0 S8 = -193,64 kg (tekan) TITIK BUHUL H  http://www.mercubuana.ac.id 3

  3. S2 cos1 + S10 cos3 – S1 cos1 – Pa3 sin2 – Pa2 sin1 = 0 0,8575 S2 + 0,8193 S10 – (-122,93) (0,5812) – 33,59 – 39,19 = 0 0,8575 S2 + 0,8193 S10 + 71,44 – 72,78 = 0 0,8575 S2 + 0,8193 S10 = 1,34 S2 = - 0,955 S10 + 1,56 ........................................................................ (i)  Fy = 0, Pa3 cos2 + Pa2 cos1 + S2 sin2 – S10 sin3 – S1 sin1 – S9 = 0 55,99 + 27,99 + 0,5145 S2 – 0,5734 S10 – (-122,93) (0,8137) – 0 = 0 83,98 + 0,5145 S2 – 0,5734 S10 + 100,03 = 0 0,5145 S2 – 0,5734 S10 = -184,28 S10 = 0,897 S2 + 321,38 (i) dan (ii) - S10 = (0,897) (-0,955 S10+1,56) + 321,38 S10 = - 0,8566 S10 + 1,399 + 321,38 1,8566 S10 = 322,779 S10 = 173,85 kg (tarik) S2 = (-0,955) (173,85) +1,56 S2 = -164,47 kg (tekan) TITIK BUHUL D http://www.mercubuana.ac.id 5

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