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ID number:685220
 
Author:
Evaluation:
Published: 22.11.2012.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Piepūles N9-8 vērtības noteikšanai, par momentpunktu izmanto mezglu Nr.4
ΣM4 = 129.3•18 - 24•12 - 48•6 - 20•6 - N9-8•3 = 0
N9-8 = 543.8 kN

Piepūles N9-4 vērtības noteikšanai, par momentpunktu izmanto piepūļu NA-9 un N2-3 krustpunktu, kas atrodas ārpus kopnes robežām punktā k. Attālumu no punkta A līdz krustpunktam k apzīmēju ar a.
ΣMk = -VA•a + 24•(6+a) + 48•(12+a) + 20•(12+a) - N9-4• rk= 0
Izmērot nepieciešamos lielumus, iegūst: a=18, rk=13.4
N9-4 = 21.5 kN

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