belka MB, WSEIZ, Budownictwo, Semestr III, 8. Wytrzymałość materiałów, Wykład


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a P b

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A B

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P

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P

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X1 X2

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VA VB

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P

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X1=1

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y1 y2 0x01 graphic

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X2=1

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y3 y4

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Rys.a

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A C B

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Rys.b

Równania kanoniczne (równowagi)

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……………………………………………….(a)

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……………(b)

Obliczenie wartości yi z rys.a

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Obliczenie ki

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Po podstawieniu do (b) otrzymujemy

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podstawiając X2 do (a) otrzymujemy 0x01 graphic

Obliczenie momentów 0x01 graphic

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Obliczenie reakcji na podporze A i B

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Obliczenie wartości momentu dla 0x01 graphic

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Wykres momentu gnącego belkę przedstawiono na rys.b



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