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既有固定起重機申請檢查系統填寫說明及注意事項 - 社團法人中華民國 ...

既有固定起重機申請檢查系統填寫說明及注意事項 - 社團法人中華民國 ...

既有固定起重機申請檢查系統填寫說明及注意事項 - 社團法人中華民國 ...

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(2) 吊 鈎 第 2 剖 面 強 度B3 =B4 =H2 =剖 面 積 A2 ===鋼 索 開 角 120° 時 ,α= 60°4.5 cm1.5 cm5.55 cm(B3 + B4 ) × H22( 4.5 + 1.5 ) × 5.55216.65 cm 2E3===H2 × ( B3 + 2 × B4 )3 × ( B3 + B4 )5.55×(4.5+2×1.5)3×(4.5+1.5)2.31 cmE4 = H2 - E35.55 2.31= –= 3.24 cmI 2===H2 3 × ( ( B3 + B4 ) 2 + 2 × B3 × B4 )36 × ( B3 + B4 )8.35 3 ×((6.3+2.8) 2 +2×6.3×2.8)36×(4.5+1.5)39.18 cm 4Z3 ==I 2E316.96= 39.182.31cm 3 39.18彎 曲 力 矩 :I 2Z4 =E4=3.24= 12.09 cm 3M2 = Q × tan60° ×d / 2 + E32= 3000 × √3 ×5.9 / 2 + 2.312= 13666 kg-cm

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