Recent content by jhox08

I have the truss shown, I'm supposed to find the internal force for each of the vertical members...I understand method of joints and method of sections, but can you use both method of joints and sections in the same problem...for example I found Ly=52.5 and Ry=32.5 using moments and summing in...

first of all thank you so very much for your help...how am I messing up my subscripts?...so continuing on, I've redone all of my calculations...Tga=50 C, Tgh=30 T, Tah=10 T, Tab=30 C, Thb=37.5 T, Thj=7.5 T, Tjb=20 T, Tjk=7.5 T, I really hope I'm right with these... I don't feel very confident...

yes you're correct on the loads and I agree Gy is 80, mistake on my end...at joint G, I get Tgh=30 in tension, Tga=50 in compression, and this is where I am pretty shaky, since Tga is in compression at joint G it must point into joint A as well, so the FBD for joint A is 30kN down, Tab to the...

please see the attached image, I'm supposed to find the internal force in each member of the truss. I used moments to find My=40 and Gy=120, I then moved on to FBD of joint G where I found Fgh=30kN in tension, and Fga=50kN in compression, next I did joint A to find Fab=30kN in tension...