Statik tekshirish. Ramaning 1-tuginini kirkib olib, uning uchun muvozanat tenglamalarini
ezamiz ( 6.12-rasm b):
∑X=0, -N12+Q13=0, -1.25+1.25=0.
∑Y=0, N13-Q12=0, 5.94-5.94=0.
∑M=0, M12-M13=0, ŝ 3,43-3,43=0.
Defarmotsion tekshirish. M∑ èpyurasining to’g’ri chizilganligi quyidagi formula
yordamida tekshiriladi:
∑∫ M∑ M1dx ⁄ EJ=0
va ∑∫ M∑ M2dx ⁄ EJ=0 bo’lishi kerak.
6.12-rasm. e. j. xamda 6.11-rasmda ifodalangan èpyuralarga asosan
∑∫ M∑ M1dx ⁄ EJ=36*3 ⁄ 2EJ- 3.75*6*2 ⁄ 2E2J-3.43*6*4 / 2E2J-3.43*4*6 / 2EJ+1.61*4*6 /
2*EJ=0
Shunga uxshash, ∑∫ M∑ M2dx ⁄ EJ=0 èanligiga xam ishonsh xosil qilish mumkun. Demak
rama to’g’ri xisoblangan.
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