Horizontal Bracing at top of Pratt bridge?
Horizontal Bracing at top of Pratt bridge?
(OP)
I am designing a short, 35'8" span Pratt bridge (4 @ 9').
Simple enough.
But, I am unable to locate the engineering standard for the strength requirement of the horizontal bracing at the top.
photo of a Pratt truss bridge (also 4 section) is attached.
I am asking about the X-bracing which connects the top, horizontal compression members at the connections to the vertical tension members.
How is the force into these calculated?
Simple enough.
But, I am unable to locate the engineering standard for the strength requirement of the horizontal bracing at the top.
photo of a Pratt truss bridge (also 4 section) is attached.
I am asking about the X-bracing which connects the top, horizontal compression members at the connections to the vertical tension members.
How is the force into these calculated?






RE: Horizontal Bracing at top of Pratt bridge?
There was much redundancy in this but there was no way to do an accurate calculation.
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Horizontal Bracing at top of Pratt bridge?
RE: Horizontal Bracing at top of Pratt bridge?