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KONSTRUKSI BALOK GERBER. S=sendi/engsel Konstruksi ABSC dibagi 2 bagian yaitu: 1.SC= S=sendi dan C=roll 2.ABS=A=Engsel, B Roll, S=Bebas A B S C

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konstruksi balok gerber
KONSTRUKSI BALOK GERBER
  • S=sendi/engsel
  • Konstruksi ABSC dibagi 2 bagian yaitu:
  • 1.SC= S=sendi dan C=roll
  • 2.ABS=A=Engsel, B Roll, S=Bebas
  • A B S C
  • S I C
  • A II B
perhitungan
Perhitungan
  • A 6 T B S 5T C
  • 2m 4m 1m 3m 2m
  • 5t
  • S C
balok sc
Balok SC
  • Syarat Kesetimbangan
  • V=0 Vs+Vc =5t
  • Ms=0
  • 5.3-Vc.5 =0
  • 15-5Vc=0
  • 15=5Vc
  • Vc=3t
  • Vs+Vc=5t
  • Vs+3=5t
  • Vs=2t
  • Kontrol
  • Mc=0
  • Vs.5-5.2=0
  • 2.5-5.2=0 (ok)
balok abs
Balok ABS
  • A 6T B 2T
  • S
  • 2m 4m 1m
  • V=0 VA+VB=6+2= 8 t
  • MA=0
  • 6.2-VB+2.7=0
  • VB=4 .1/3
  • MB=0
  • VA.6-6.4+2.1=0
  • 6VA=24-2=22
  • VA=22/6
  • VA=3.2/3
  • Kontrol= VA+VB=8 T
konstruksi 3 sendi
Konstruksi 3 sendi
  • Portal simetris Portal tak simetris

S S

HB

B

HA VB

A HA HB B A

VA VB VA