That's all I've been giving,it's been done in excel,and is just the members and a total load, with coordinates for each joint. From there I've found all the lengths and angles and now I'm using that to find stresses
http://imageshack.us/photo/my-images/853/bridgel.png/
I don't answers course just some guidance. I need to find the forces at each joint, and stresses inbetween too. I've calculated the reaction forces by taking moments as 779N at far left and 692.5N at far right.
Now I'm using trig of...