other times when you wake up in the middle of the night and say did I
forget to framitize the widget.
Gary
Rhkratzse@aol.com wrote:
> IIRC it was a grad student, and since this was 20+/- yrs ago they're
> probably at the top of their profession by now.
>
> My memory is that the critical thing is that the Citicorp building has
> only 4 columns around the perimeter, but they're not at the corners,
> they're in the middle of each side. The design, again IIRC, was based
> on analyses in the X-X and Y-Y directions, but not in the diagonal
> direction, which is what the student caught.
>
> Not to toot my own horn, but in 1965 or '66, on my very first
> engineering job, I was figuring the loads due to a four-legged
> traveling crane and I came to the conclusion that diagonal forces
> controlled, just as they did in the Citicorp building's columns.
>
> Ralph Hueston Kratz, S.E.
> Richmond CA USA
>
> In a message dated 1/29/09 7:30:58 PM, seaint04@lewisengineering.com
> writes:
>> I'm wondering who that student was and what is he/she doing today?
>>
>> Rich
>>
>>
>> -----Original Message-----
>> From: David Fisher [mailto:dfisher@fpse.com]
>> Sent: Thursday, January 29, 2009 11:09 AM
>> To: seaint@seaint.org
>> Subject: RE: Facing mistakes in structural design
>>
>> Jorge:
>>
>> That was the Citicorp Center in New York:
>>
>> http://www.duke.edu/~hpgavin/ce131/citicorp1.htm
>>
>>
>> Fascinating article...
>>
>>
>>
>> David L. Fisher SE PE
>> International Project Manager
>> The Food Water Energy Company/movewithus international
>> Trinity House
>> Cambridge Business Park
>> Cambridge CB4 0WZ
>> United Kingdom
>>
>> 312.622.0409 GSM mobile
>>
>> THE FOOD WATER & ENERGY COMPANY
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Jorge Jimenez [mailto:joraljim@prtc.net]
>> Sent: Thursday, January 29, 2009 11:08 AM
>> To: seaint@seaint.org
>> Subject: Facing mistakes in structural design
>>
>> I remember a story of a group of graduate students that found a
>> design flaw
>> in a high-rise building for wind effects considerations. They called the
>> attention to the structural engineer who made the design. The designer, a
>> renowned structural engineer, courageously disclosed to the public his
>> mistake. The building was in use and then needed an important
>> retrofitting.
>> Do you remember the name of this structural engineer or have knowledge of
>> similar and recognized circumstances?
>>
>> Jorge Jimenez, PE
>
>
>
> **************
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