A horizontal steel girder has a span of 3 m and is built-in at the left-hand end and freely supported at 4 the other end. It carries a uniformly distributed load of 30 kN/m over the whole span,...

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Extracted text: A horizontal steel girder has a span of 3 m and is built-in at the left-hand end and freely supported at 4 the other end. It carries a uniformly distributed load of 30 kN/m over the whole span, together with a single concentrated load of 20 kN at a point 2 m from the left-hand end. The supporting conditions are such that the reaction at the left-hand end is 65 kN. (a) Determine the bending moment at the left-hand end and draw the B.M. diagram. (b) Give the value of the maximum bending moment. (c) If the girder is 200 mm deep and has a second moment of area of 40 x 10-“ m* determine the maximum stress resulting from bending [LMech. E.] [40 kN m; 100 MN/m'.]