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RE: railing design

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You might want to look at "Metal Rail Manual" by NOMMA (National Ornamental
& Miscellaneous Metals Association).  This manual has charts showing
relative load distribution for various configurations and post to rail
stiffness ratios. Also "Pipe Railing Manual" by NAAMM (National Association
of Architectural Metal Manufacturers - web page

Ed Marshall, PE

> -----Original Message-----
> From:	Mark Trimble [SMTP:trimbleml(--nospam--at)]
> Sent:	Monday, February 15, 1999 12:39 PM
> To:	seaint(--nospam--at)
> Subject:	railing design
> i have a handrail that has 1/2" X 1/2" verticals at 4" o.c. with a
> nominal flat stock top horizontal.  in applying the code required 200 #
> horizontal load what effective width is allowed.  another words how many
> verticals can contribute?
> another question is, what is the codefied deflection criteria?