4-portal-dan-pelengkung-tiga-sendi

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q = 10 kN/m Gaya-gaya dalam (ditinjau pada titik C): = 45° + N cy M c N c x c = ½ . L – R . cos y C V cx N cx y c = R . sin – ½ . L y c R AH A x V cy V c Gaya-gaya N c dan V c diuraikan menjadi komponennya dalam arah x dan y : N c N cx = N c sin R AV N cy = N c cos V c V cx = V c cos x c V cy = V c sin ½L 45°
Digunakan prinsip keseimbangan gaya dan momen : F x = 0 N cx – V cx + R AH = 0 N c .sin – V c . cos + 42,676 = 0 V c = (N c .sin + 42,676) / cos F y = 0 N cy + V cy + R AV – q.x c = 0 N c .cos + V c . sin + 35,355 – 10 . x c = 0 N c .cos +((N c .sin +42,676)/cos .sin + 35,355–10.x c = 0 N c = 10 . x c . cos - 42,676 . sin – 35,355 . cos M c = 0 R AV . x c – R AH . y c – ½ . q . (x c ) 2 – M c = 0 M c = R AV . x c – R AH . y c – ½ . q . (x c ) 2
Page 1 and 2:
MEKANIKA STRUKTUR I PORTAL DAN PELE
Page 3 and 4: 2. Portal 3 Sendi S S sambungan kak
Page 5 and 6: P P P Deformasi/pergeseran besar P
Page 8: Sendi Sendi Sendi
Page 11 and 12: ΣMB = 0 RAV. 5+ 5.3 - 15.2 = 0 RAV
Page 13 and 14: (+) BMD MA = 0 MC = 5.3 = 15 Tm MD
Page 15 and 16: Soal 2: Portal dengan beban merata
Page 17 and 18: D 15 KN/m 0 KN 0 KN 50 KN 40 KN 40
Page 19 and 20: 40 KN 28,289 KN D E C F 22 KN B 56,
Page 22 and 23: Soal 3: Portal 3 sendi dengan beban
Page 24 and 25: (+) (+) (-) 3 T D D (+) S E F F C 4
Page 26 and 27: (-) (-) D S F C 3 T A B 12 T Normal
Page 28 and 29: ΣMB = 0 RAV. 13+ 30.2 -15.6.7 - 40
Page 30 and 31: 50 KN 28,5 KN 23,288 KN (+) G E (+)
Page 32: 82,5 KNm BMD MA = 0 KNm MC = 4,5.2,
Page 35 and 36: Y P Pada potongan yang ditinjau ter
Page 37 and 38: Y 10.3(1-cos ) kN Ncy = Nc.cos α N
Page 39 and 40: Tabel Perhitungan Sudut α Nc = -30
Page 41 and 42: 45 22,5 ( +) 22,5 45° 45° Bending
Page 44 and 45: Soal 6 : Pelengkung 3 sendi dengan
Page 46 and 47: 10.3(1-cos ) kN Ncy = Nc.cos α Nc
Page 48 and 49: 25,61 15 20,49 20,49 ( - ) ( - ) 25
Page 50 and 51: 9 5,22 5,22 9 11,25 (-) (-) 11,25 4
Page 52 and 53: R = 5m Arah reaksi-reaksi tumpuan d
Page 56 and 57: α β xc (m) yc (m) Nc (KN) Vc (KN)
Page 58 and 59: (+) (-) 0 (+) (-) Shearing Force Di
Page 60 and 61: Soal 8 : Pelengkung 3 sendi dengan
Page 62 and 63: 10,243 . R BV + 4,243 . R BH = 524,
Page 64 and 65: R = 6 m Titik S ( = 90°): 10 kN/m
Page 66 and 67: 6,2175 8,789 (-) 0,011 -36,2175 She
Page 69 and 70: Mekanika Struktur I Diketahui Konst
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