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Building Process

explain why s...

Question

explain why should the beams used in construction of bridges have large depth and small breadth?

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Solution

$d e a r s t u d e n t w h e n a b e a m i s u s e d f o r b r i d g e, t h e d i s p l a c e m e n t o f i t s c e n t r e w h e n w e i g h t W i s a p p l i e d o n i t i s g i v e n b y δ = \frac{W l^{3}}{4 b d^{3} Y} w e w a n t a s l e s s d i s p l a c e m e n t a s p o s s i b l e . s o, d, d e p t h s h o u l d b e m o r e .$
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