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せん断力図(SFD)と       曲げモーメント図(BMD)

せん断力図(SFD)と       曲げモーメント図(BMD). (単純支持ばりについて 例題問題). S F D(Shearing Force Diagram) BMD(Bending Moment Diagram). 注:. 2880. 2640. (1)集中荷重を受ける単純支持ばり. W 1 =40N. W 2 =40N. ① 支点の反力R A 、R B を求める. 44N. /200=. 140). R B =. 80+. (40 ×. 40 ×. C. B. D. A. 36N. 40+. 40ー. 44=. R A =.

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せん断力図(SFD)と       曲げモーメント図(BMD)

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  1. せん断力図(SFD)と      曲げモーメント図(BMD)せん断力図(SFD)と      曲げモーメント図(BMD) (単純支持ばりについて 例題問題) SFD(Shearing Force Diagram) BMD(Bending Moment Diagram) 注:

  2. 2880 2640 (1)集中荷重を受ける単純支持ばり W1=40N W2=40N ①支点の反力RA、RBを求める 44N /200= 140) RB= 80+ (40× 40× C B D A 36N 40+ 40ー 44= RA= ②せん断力AC間、CD間、DB間を求める 60 60 80 RA= 36N AC間 FAC= RA RB -4N 36-40= CD間 FCD= RA- W1= W1 )- (RA- W2 DB間 FDB= ※距離の単位は㎜ 36 -44N =(36-40)-40= SFD [N] 0 ③曲げモーメントを求める -4 ※はりの曲げられている状態から -44 モーメントの符号は(+) 点Cの曲げモーメントはRAによるモーメントをとると 2880N・㎜ RA× 80= 36×80= MC= BMD [N・㎜] 0 点Dの曲げモーメントはRBによるモーメントをとると 60= MD= 2640N・㎜ RB× 44×60=

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