Page 34 - Flipbook Mekanika Statis Tentu

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DA = RVA = 4,85 t
DD = RVA – Q = 4,85 – 6 = -1,15 t

DE = DD – Py = -1,15 – 1,42 = -2,57 t
DB = -RVB = -2,57 t

Momen

MA = 0

MC = (RVA . 3) – (q. 3 .1,5)

= (4,85 . 3) – (1 . 3 . 1,5)
= 14,55 – 4,5

= 10,5 tm
MD = (RVA . 6) – (Q . 3) = (4,85 . 6) – (6 . 3) = 29,1 – 18 = 11,1 tm

ME = (RVA . 9) – (Q . 6) = (4,85 . 9) – (6 . 6) = 43,65 – 36 = 7,65 tm
MB = 0

Mmaks

Dx = 0
RVA – (q . x) = 0

4,85 – (1 . x) = 0
x = 4,85 m

Mmaks = (RVA . 4,85) – (q . 4,85 . 2,43)

= (4,85 . 4,85) – (1 . 4,85 . 2,43)

= 23,52 – 11,79
= 11,73 tm

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