- #1
smashbrohamme
- 97
- 1
ok this is a basic truss problem and I have to solve every member in the truss(see picture)
Basically I started off solving my reaction forces...For the bottom left Pin, i got 8kips goin left, and 9kips acting down...for the bottom right roller I got 9kips acting up.
So after working my way through the reaction forces I started making FBD's
I started with E..and ended up making Fec = 9kips going upwards, and Fef = 8kips going right.
needless to say I worked my way up the truss and found out when I got to FBD of B (which is my last FBD) I did something wrong, because wouldn't BD and BA be zero force members?
here is my current answer, I won't use compression and tension due to confusion, I will say the directed location from left, right, up and down.
Fec= 9kips up
Fef = 8kips right
Fcf = 10 kips, up
Fdf = 15kips, down
fcd = 4kips, right
Fac = 15 kips, down.
fad = 5kips, up
fbd = 12kips, up. *this is where I stoped* because obiviously I messed something up.
Basically I started off solving my reaction forces...For the bottom left Pin, i got 8kips goin left, and 9kips acting down...for the bottom right roller I got 9kips acting up.
So after working my way through the reaction forces I started making FBD's
I started with E..and ended up making Fec = 9kips going upwards, and Fef = 8kips going right.
needless to say I worked my way up the truss and found out when I got to FBD of B (which is my last FBD) I did something wrong, because wouldn't BD and BA be zero force members?
here is my current answer, I won't use compression and tension due to confusion, I will say the directed location from left, right, up and down.
Fec= 9kips up
Fef = 8kips right
Fcf = 10 kips, up
Fdf = 15kips, down
fcd = 4kips, right
Fac = 15 kips, down.
fad = 5kips, up
fbd = 12kips, up. *this is where I stoped* because obiviously I messed something up.