Question No. 7 A reinforced concrete beam with rectangular cross section (width = 300mm, effective depth = 580mm) is made of M30 grade concrete. It has 1% longitudinal tension reinforcement of Fe 415 grade steel. The design shear strength for this beam is 0.66 N/mm². The beam has to resist a factored shear force of 440 kN. The spacing of two-legged, 10mm diameter vertical stirrups of Fe 415 grade steel is mm. (round off to the nearest integer)

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