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RE: Fall Protection 5000# load

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Interestingly, there is a change working its way through the ASCE 7-16 process 
 that would specify a 3,100# live load for design of these anchorages. The 
justification is that a 3100# load times the 1.6 live load factor for strength 
 design essentially equals the 5000# OSHA-specified load. There is commentary 
 language that says a 1.6 safety factor should be applied to the load for 
ASD, obtaining the same 5000# design load.

There is similar language in Section 1607.9.4 of the 2015 IBC, though without 
 the additional commentary language on using either the 1.6 live load factor 
 (for LRFD) or a 1.6 safety factor (for ASD).

Either way, it comes down to considering the 5000# load to be an ultimate 
load, rather than a nominal (ASD) or service load.

Gary

GARY J. EHRLICH, P.E.
Senior Program Manager
Construction, Codes & Standards

D 202 266 8545  M 240 355 5011
F 202 266 8369  T 800 368 5242 x8545
gehrlich(--nospam--at)nahb.org
www.nahb.org

-----Original Message-----
From: seaint-seaosc(--nospam--at)mail-list.com [mailto:seaint-seaosc(--nospam--at)mail-list.com] On 
Behalf Of Kavsak, Paul M. Sent: Thursday, June 04, 2015 3:24 PM
To: seaint-seaosc(--nospam--at)mail-list.com
Subject: RE: [SEAINT-SEAOSC] Fall Protection 5000# load

10) states "Anchorages to which personal fall arrest equipment is attached 
shall be capable of supporting at least 5,000 pounds (22.2 kN) per employee 
 attached, or shall be designed, installed, and used as part of a complete 
personal fall arrest system which maintains a safety factor of at least two, 
 under the supervision of a qualified person." IMO, This does not indicate 
limit state since there is a SF of 2.0; being a person who uses fall protection 
 on a somewhat irregular basis (2 or 3 times per year) I would hope that the 
 anchorage and components linked to me and the anchorage have reserve strength. 
 Just in case.

-----Original Message-----
From: seaint-seaosc(--nospam--at)mail-list.com [mailto:seaint-seaosc(--nospam--at)mail-list.com] On 
Behalf Of Drew Morris Sent: Thursday, June 04, 2015 2:56 PM To: 
seaint-seaosc(--nospam--at)mail-list.com Subject: Re: [SEAINT-SEAOSC] Fall Protection 
5000# load

Try here:

<http://cirrus.mail-list.com/seaint-seaosc/09824156.html> 
> 

Truncated 1563 characters in the previous message to save energy.

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