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ID number:923407
 
Author:
Evaluation:
Published: 11.10.2010.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Lai uzkonstruētu šķērsspēka un lieces momenta epīras dotajai sijai, no sākuma nepieciešams sadalīt daudzlaidumu locīklu siju posmos un aprēķināt balstu reakcijas spēkus.

1.Atrod šķērsgriezuma centrālās asis:
xc var noteikt uzreiz, jo šķērsgriezums ir simetrisks un smaguma centrs atradīsies pa vidu.

Xc=7/2=3,5cm
Yc aprēķins:
1.aprēķina sijas elementu laukumus
F1=b*h F1=7*15=105cm2
F2=*R2=28,26cm2
2. Aprēķina sijas elementu statiskos momentus
S1=F1*y1 S1=105*7,5=787,5cm3
S2=F2*y2 S2=28,26*10=282,6cm3.…

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