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Question 2 Figure 2 shows the cross-section of a reinforced concrete column which for architectural reasons has the shape of an equilateral triangle and which is reinforced as shown. Material Properties are fe = 32 MPa and fsy = 500 MPa (a) Calculate the depth of the plastic centroid dpc for the section (b) This column section is subjected to combine axial compression and bending about a horizontal axis, with the 5N24 bars being on the tension side. Calculate the M., N. values corresponding to a neutral axis depth of 250 mm. Assume that the Equivalent Rectangular Stress Block (ERSB) parameters used for rectangular sections also apply to this section. 100 N24 dpe 390 340 5N24 번 450 Figure 2