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  3. deflection tests were conducted on a steel joist a

Deflection tests were conducted on a steel joist and a timber joist both simply supported over a...

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Civil Engineering

Deflection tests were conducted on a steel joist and a timberjoist both simply supported over
a span of 5 m and carrying a point load of 45 kN at distance of ‘a’from left support. Maximum
deflection was observed at a position 2.4 m from the left supportfor steel joist and 1.85 m from
the left support for steel joist. Calculate and compare the resultsfor maximum deflection, slope at
both ends and deflection under the load for both steel and timberjoists. Take Flexural rigidity for
steel joist as 14 x 1012 Nmm2 and the Flexural rigidity for timberjoist as 6.9 x 1012 Nmm2. Suggest
the changes to be made in the dimensions of the beam for reducingthe deflection based on the
results obtained.

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