Monday, May 30, 2005

Pinned Truss Bridge Detail

Posted by Hello

This photo shows the eyes on the truss members of a pinned lower chord metal truss bridge in Morrow County. It was built in 1874. These members are in tension so they can be thin as there is no concern about buckling. This structure allows flexibility of the bridge and better distribution of loads. Newer bridges tended to have heavier members with riveted or welded joints.