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ID number:538216
 
Author:
Evaluation:
Published: 22.12.2010.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Tā kā dotā sija ir līdzsvarā, tad ΣMA=0, ΣMB=0, ΣX=0 un ΣY=0 un balsta reakcijas VA un VB atrodu, izmantojot līdzsvara vienādojumus:

ΣMA=0
ΣMA= 2P1 + 4P3 – 5VB – m +1,5q; tātad VB = 10kN

ΣMB=0
ΣMB=-P3 -3P1 -13,5q – m + 5VA; tātad VA = 22kN

Pārbaude:
ΣY=0
ΣY= -3q – P1 – P3 +VA +VB
ΣY=-3·6-5-9+10+22=0
Ievietoju otrajā vienādojumā VA un VB vērtības, iegūstot to, ka ΣY=0, tātad balsta reakcijas ir noteiktas pareizi.…

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