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Re: ICBO Approvals - was why can't we get along

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The ICBO reports are quite relevant in many cases. (although I agree with Gail on the anchorage devices for post tensioning. I have never required one during the review). 

Case in point is the proprietary lateral resistance systems such as the Hardy frame and the Simpson strong wall. If there was no entity such as the ICBO ES, the jurisdictions would be at a loss in accepting these since none of them have the resources to allocate for research on these products.

I think having an agency that evaluates products that provide an alternate in method or materials of construction is not only good for the local governing agency but also for the manufacturers.

Ben Yousefi, SE
Santa Monica, CA

>>> tripphoward(--nospam--at) 06/25/03 02:32PM >>>
I was just thinking the same thing.  I've never had to deal with any of these ICBO reports here on the east coast.  I've often wondered if I have been overlooking something that I should be concerned about.  Why are they required in California?  Is this something I should be concerned about in Georgia?
Tripp Howard, P.E.

GSKWY(--nospam--at) wrote:
Out of curiousity, how many jurisdictions besides Calfornia require ICBO approvals and on what materials?

I have not yet really figured out the worth of some of the ICBO ES reports. For example, there are ICBO ES reports for monostrand post-tensioning anchorages from three different manufacturers. Despite the fact the widgets are identical 5x2-1/4 cast iron plates, they all specify different spacing requirements and required stressing strengths. One lists a spacing requirement (distance to the slab edge) that is guaranteed to fail the anchorage. Another lists the wrong materials for the wedges.

Which leads me to question the value of the testing, as well as the credibilty of the IBCO ES system.

Gail Kelley

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