Neil Moore, S.E.
On 7/7/2011 11:49 AM, Bill Polhemus wrote:
ASCE 7 is not a materials design code. It is agnostic regarding definitions of things like "failure." It is a code that defines the criteria for estimating or approximating design-level loads. The changes incorporate the progression of understanding of the loading phenomenon. For example, there has been a lot of research into the nature of how wind interacts with the surfaces of bodies to generate loads on those surfaces. ASCE 7-10 incorporates the more recent understanding. EDITORIAL NOTE: I have always been somewhat at a loss to explain why so many of my colleagues resist and are quite frankly militant against changes to the way things are done. I suppose you could use the old ANSI A58.1 code for loading if it makes you feel more comfortable...as long as "nothing bad happens." And I guess you could insist on having all your kids' tonsils removed as well. William L. Polhemus, Jr. P.E. Via iPhone 4 On Jul 7, 2011, at 1:26 PM, "Richard Hess" <RLHess@HessEng.com> wrote:Questions: 1. How many of the changes are due to actual failures in the field of structures properly designed by previous editions?******* ****** ******* ******** ******* ******* ******* *** * Read list FAQ at: http://www.seaint.org/list_FAQ.asp * * This email was sent to you via Structural Engineers * Association of Southern California (SEAOSC) server. To * subscribe (no fee) or UnSubscribe, please go to: * * http://www.seaint.org/sealist1.asp * * Questions to seaint-ad@seaint.org. Remember, any email you * send to the list is public domain and may be re-posted * without your permission. Make sure you visit our web * site at: http://www.seaint.org ******* ****** ****** ****** ******* ****** ****** ********