Q) Find the moment of resistance of a t beam having web width of 240 mm , effective depth of 400 mm flange width of 740 mm and flange thickness 100 mm . The beam is reinforced with 5 nos 16 mm diameter , Fe415 bars use M20 concrete
Q) Find the moment of resistance of a t beam having web width of 240 mm , effective depth of 400 mm flange width of 740 mm and flange thickness 100 mm . The beam is reinforced with 5 nos 16 mm diameter , Fe415 bars use M20 concrete. Given data Web width = 240 mm Flange width = 740 mm Effective depth = 400 mm No of bars = 5 Diameter of each bar = 16 mm Concrete grade = M20 fck = 20 Mpa Steel grade = Fe415 fy = 415 Mpa Area Of Steel Ast = 5* π /4 *16 2 = 1005.30 mm 2 Find limiting depth of Neutral Axis = xumax = 0.48d = 0.48*400 = 192 mm Assume Neutral Axis xu = 0.87 fyast/.36 fckbf = 0.87 *415 *1005.3/ .36*20*740 = 68.12 mm Moment of resistance = Mu = .87 fy ast (d-0.42 xu) = .87 * 415 * 1005.3 * (400 -0.42 *68.08) 362963.565 (400-28.6)*10 -6 = 362963.565 (371.4)*10 -6 =134.80kn/m