Chapter 12, Problem 22P

Civil/Environmental Engineering

A truss is loaded as shown in Fig. P12.22. Using the following set of equations, solve for the 10 unknowns: AB, BC, AD, BD, CD, DE, CE, $A_x,A_y,\text{}\text{and}{E}_y$.

$A_x+AD=0$ $-24-CD-\left(4/5\right)CE=0$

$A_y+AB=0$ $-AD+DE-\left(3/5\right)BD=0$

$74+BC+\left(3/5\right)BD=0$ $CD+\left(4/5\right)BD=0$

$-AB-\left(4/5\right)BD=0$ $-DE-\left(3/5\right)CE=0$

$-BC+\left(3/5\right)CE=0$ $E_y+\left(4/5\right)CE=0$

FIGURE P12.22