beam of length 8 m carries two point loads of 60 kN and 90 kN are placed at a distance of 3 m and 5 m from the left hand support. Find the reactions.

A beam of length 8 m carries two point loads of 60 kN and 90 kN are placed at a distance of 3 m and 5 m from the left hand support. Find the reactions.

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SOLUTION : Total Load = 60+90= 150kN Taking moments about A RB×8 = 60×3 + 90 x 5 RB x 8 = 630 RB = 630/8 = 78.75kN RA = Total load – RB RA= 150 – 78.75  = 71.25kN ( or ) Taking moments about B RA x 8 = 90×3 + 60×5 RA … Read more