Identify all zero force members in the trusses shown 125 pts

Identify all zero force members in the trusses shown. (12.5 pts each) P A 60 80 60 k 0k A 133.33 k 66.67 k 15 ft 15 ft 15 ft 15 ft 15 ft 15 ft

Solution

A) To identify zero force members take the joint and apply equilibrium equations.

In this truss all zero force members: BG, CH, KE, EJ, KJ, DE, DJ, IJ, CD, ID

B) All Zero force members: BH, FL,FK, KE, EJ