Question

Situation 5-A three-story building han interior columns spaced om spart in two perpendicular directions Given Design Londs: Roof DL = 5.0 kPa Floor DL (typical each floor) - 7.0 kPa Roof LL = 0 3rd Floor LL - 2.4 kPa 2nd Floor - 6.0 kra in accordance with NSCP previsions, reduced design floor live load, - LO 10.25 +4.57/Vai) where: Lo – unreduced lave load Ai influence area - 4 x tributary area for a column Based on the tributary area o: an interior column, 13. What is the total axial load (kN) on a column at the second floor level due to service LL? A. 82.3 B. 76.6 What is the total axial load (kk) on a column at the ground floor level due to service LL? A. 268.8 3. 537.6 15. What is the total dead luad (*) on a column at the ground floor level? A. 1864 C. 932 B. 1682 D. 1216

Show your solutions and choose the letter of the correct answer. Thanks

Answer 1

SOLUTION Taubertany area = 8x8 = 64 m² Reduced LL on second floor, L2 - LoC 0.25 + 4.57 4x64 = 2.4 ( 0.25 + 0.275) - 1.2855 kN/m2 h hood on second door = 1.2855 x 64 = 82.3 kn 7 hood on grond LL og floor = LL of 1st floor + C 2nd floor = (1.2 255 + 6) 64 = 466.3 kn ☺ Total load = (5+ 7 + 7 + 1.2955+6)x64 = 1627 1682 kn )