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Re: Wind Tunnel Testing

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We typically use RWDI for our wind consultation needs (i.e. wind tunnel
testing, etc.).  They have a web page at

Hope this helps.


Scott E. Maxwell, PE
Structural Engineer

SHG Inc.
500 Griswold, Suite 500
Detroit, MI  48226

Phone: (313) 442-8254
Fax:   (313) 442-8297

Work Email:     smaxwell(--nospam--at)
Personal Email: smaxwell(--nospam--at)

At 03:00 PM 9/10/99 -0500, you wrote:
>In the very near future, Halff Associates expects to begin designing a
>series of "signature" bridges in concert with Santiago Calatrava of Zurich,
>Switzerland.  These bridges are envisioned to be steel arch and cable
>structures, with concrete decks spanning from 800 feet to 2000 feet.  If a
>picture is worth a thousand words, the bridge model photographs at
> "What's New?" 
>should be worth several paragraphs.  The first bridge will probably be an
>eight-lane divided structure with twin arches, each spanning about 800 feet.
>Several questions have been raised concerning wind tunnel testing of this
>structure.  Since I do not have first-hand experience with wind tunnel
>testing, I request your collective wisdom in answering these questions:
>1.	Is wind tunnel testing appropriate and necessary for this type of
>2.	Where in North America could these tests best be conducted?
>3.	What would be the approximate (order of magnitude) cost for this
>Thank you in advance for your thoughts on this matter.
>Stan R. Caldwell, P.E., F.ASCE
>Vice President, Structures
>8616 Northwest Plaza Drive 
>Dallas, Texas  75225 
>Phone:    (214)346-6280 
>Mobile:   (214)236-9696 
>Fax:      (214)739-0095 
>Email:    scaldwell(--nospam--at)