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ONE (1) number of Reinforced Concrete Bridge Pier is constructed to support TWO (2) numbers of simply supported Bridge girder 1 and Bridge girder 2 as shown in Figure Q1(i). Figure Q1(ii) shows the cross-section X - X of the bridge pier. The height of pier is L m. The pier is subjected to the compressive axial load of P kN. Given, the modulus of elasticity for steel reinforcement, Es = 200 GPa, and concrete E. = 25 GPa. a) Sketch and describe the possible occurrences of normal stress and shear stress for Reinforced Concrete Bridge by referring to Figure Q1(i). (CO1:PO2)(C2) (10 MARKS) b) Calculate the stress for the concrete and the steel in pier if "n" numbers of steel reinforcement with "d" mm diameter and the compressive axial load, "P" KN are adopted. Hence, determine the shortening of the pier. (CO1:PO2) (C4) (12 MARKS)