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Re: methods to restore service at Sims CA
Author: trackwalker
Date: 04-28-2017 - 15:47
Jim Fitzgerald Wrote:
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> Could someone in the know explain what kind of
> construction makes a Pin End truss bridge?
Basically, a truss is either a "fixed end" or, a "pin end" Your house trusses are fixed that means nothing can flex (at the joints.) A pin end is a single pin joining the parts together to allow flexing.
I do not know this for a fact, but I would suspect a fixed end truss on a bridge would rather quickly tear itself apart with all the flexing. In your house, much of the flex is taken up in the lumber used in the truss, so a fixed end would not be so problematic.
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> Could someone in the know explain what kind of
> construction makes a Pin End truss bridge?
Basically, a truss is either a "fixed end" or, a "pin end" Your house trusses are fixed that means nothing can flex (at the joints.) A pin end is a single pin joining the parts together to allow flexing.
I do not know this for a fact, but I would suspect a fixed end truss on a bridge would rather quickly tear itself apart with all the flexing. In your house, much of the flex is taken up in the lumber used in the truss, so a fixed end would not be so problematic.
