Yechish:
Muvozanat tenglamasini tuzamiz:
Nl
RA F RB 0 , l EA ,
l lF lRB 0 ,
1
lF EA2 EA ,
1
lRB EA2 EA2 EA
1 1
l EA2 EA2 EA EA2 EA 0
RA F RB 20011486kN
1. N bo’ylama kuchni aniqlaymiz:
1-uchastka N1 RB 0
N1 RB 114kN
2-uchastka N2 F RB 0
N2 F RB 86kN
3-uchastka N3 F RB 0
N3 F RB 86kN
N
2. kuchlanishni aniqlaymiz: A
1 A2 10104 11,4104 kN m2
2 A2 10104 8,6104 kN m2
3 A1 15104 5,73104 kN m2
Nl
3. l mutloq deformatsiyani aniqlaymiz: l EA
l1 EA2 2108 10104 9,12104 m
l2 EA2 2108 10104 5,16104 m
1
l3 EA 2108 15104 4104 m
Tekshirish: l 0
l l1 l2 l3 0 l 9.125.16 4 0
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