I did reply to this, but it apparently did not come through...just "stirring" things up... The SI system has it's merits. Sometimes it gets lost amongst those of us that work exclusively with in-lb imperial units.
On Fri, Oct 30, 2009 at 3:53 AM, Gary L. Hodgson and Assoc. <design@hodgsoneng.ca> wrote:David******* ****** ******* ******** ******* ******* ******* *** * 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 ******* ****** ****** ****** ******* ****** ****** ********
There are a few things that I don't like about the SI system but I don't think antiquated is one of them, unless of course you're just trying to stir things up.
My biggest beef is with millimetres; gives you numbers several inches long. Occasionally, I see calcs from Europe and they are still using centimetres, which seems a lot more sensible to me.
Gary
From: David Topete [mailto:d.topete73@gmail.com]
Sent: Thursday, October 29, 2009 07:59
To: seaint@seaint.org
Subject: Re: Bay Bridge
That, I believe, is what happened. Winds of 30 MPH (= 48km/h for those who use that antiquated Systeme Internacional unit system... :-p ) on Monday night and early Tuesday morning apparently caused an imbalance in the tie rod repair, and snapped one rod.
On Thu, Oct 29, 2009 at 4:45 AM, Gary L. Hodgson and Assoc. <design@hodgsoneng.ca> wrote:
I hope I am reading this right, but it looks to me like the tie rods are ending well above the pin. This to me is asking for trouble. Any slight eccentricity or lateral load will tend to de-stabilize the saddle.
Gary
Mark Johnson wrote:Here is a good image:
http://imgs.sfgate.com/c/pictures/2009/10/27/ba-bridge1028_gr_SFCG1256699813.jpg
MJ
******* ****** ******* ******** ******* ******* ******* ***
* 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 ******* ****** ****** ****** ******* ****** ****** ********
******* ****** ******* ******** ******* ******* ******* ***
* 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 ******* ****** ****** ****** ******* ****** ****** ********
--
David Topete, SE
--
David Topete, SE
--
Alexander Bausk
Civil/Structural design & inspection engineer, CAD professional
http://bausk.wordpress.com
ONILAES Lab at PSACEA
Dnipropetrovsk, Ukraine
Tel. +38 068 4079692
Fax. +38 0562 470263
bauskas@gmail.com