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Stair Stringer Fully Braced 9

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jechols

Structural
Joined
Jan 21, 2004
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109
Location
US
I am designing a simple stair stringer that spans from landing to landing. The stringer is 18'-6" long (horizontal). The tread width is 3'-6". I am using LL=100 psf and DL=50 psf. Also I am using "Metal Stairs Manual" NAAMM STANDARD AMP 510-92. The manual states: "Stringers are considered to be laterally braced by attached treads and risers." The question is do you consider the stringers laterally braced by the treads and risers, and if so would you still consider the stringers braced if there were no risers just treads?

Thanks!

J
 
apsix,

Just reflecting on what Yura at Univ. of Texas has taught for many years.

 
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