Question

The concrete [E = 29 GPa] pier shown in the figure is reinforced by four steel [E = 200 GPa] reinforcing rods, each having a diameter of 19 mm. Assume P = 680 kN, L = 2.10 m, and a = 275 mm. If the pier is subjected to an axial load of 680 kN, determine

(a) the normal stress (positive if tensile and negative if compressive) in the concrete and in the steel reinforcing rods.
(b) the deflection of the upper end of the pier (positive if downward and negative if upward).

The concrete [E = 29 GPa] pier shown in the figure is reinforced by four steel [E-200 GPa] reinforcing rods, each having a diameter of 19 mm. Assume P = 680 kN, L = 2.10 m, and a = 275 mm. If the pier is subjected to an axial load of 680 kN, determine (a) the normal stress (positive if tensile and negative if compressive) in the concrete and in the steel reinforcing rods. (b) the deflection of the upper end of the pier (positive if downward and negative if upward). (t

Answer 1

EC 29 fa Iq mm 息.io n しこ 0.2구5m Chon 'n can mben ler Ins me Ps -As Es Ps 子s

Pc Ps F c Ps sol vin Ps6153 730 N 16.IS3 kN Pe 615, 384 ku

Ps --As 6 IS3 730 T (19) -5678 Mpa ' S iCon tompo membel Sq82 mm daun