Find the value of load p in kn

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A reinforced concrete beam, size 250 mm wide and 400 mm depth is simply supported over a span of 4.5 m. It is subjected to two-point loads P of equal magnitude placed at middle third points. The two loads are gradually increased simultaneously. The beam is reinforced with 2 HYSD bars of FE415 grade of 16 mm diameter placed at an effective cover of 40 mm on the bottom face and nominal shear reinforcement. The characteristic compressive strength and the bending tensile strength of concrete are 20 MPa and 2 Mpa respectively.

Ignoring the presence of tension reinforcement find the value of load P in kN when the first flexure crack will develop on the beam is

Reference no: EM132416182

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