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ID number:262412
 
Author:
Evaluation:
Published: 25.11.2009.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

1. uzdevumus
Dotie:
qn=55kN/m
q=85kN/m
E=2.06*105 MPa
L=6.2 m
Tērauds C275
f/l=1/250
Wcal=M/Ry*γc
Lai noteiktu nepieciešamos sijas šķērsgriezuma izmērus izmanto sakarību:
No šīs sakarības tiek iegūta minimālā nepieciešamā pretestības momenta liecei vērtība.
Tēraudam C275 ar velmējuma biezumu 2-20 mm pēc CHuП II-23-81 atbilst Ry=270MPa=27kN/cm2;
Tā kā uzdevumā nav norādīts konstrukcijas veids, tad pieņemu, ka γc=1 pēc CHuП II-23-81 6.tabulas.4.punkta.…

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