----- Original Message -----
Sent: Wednesday, April 18, 2001 12:16
Subject: Investigating Welds
I received a call
from a local production theater (plays and performances). The call was from
their master carpenter who job includes evaluating the safety of the sets and
mechanical platforms. He was concerned as there is a counter weight system of
more than 50-kips which is used to lift sets, curtains and platforms. He is
concerned only because of what he has read regarding problems with welds. He
suggested I come in to help create a program where welded connection can be
tested and verified. There are no noticeable problems, but he is doing this as
a preventative measure to insure the safety of the people on stage and behind
What is the
standard I should follow to evaluate the welded connections that support the
50-kip counterweights? What percentage of welds should be checked? Should they
be X-rayed, magnafluxed.....?
Any advice would
be greatly appreciated.
Dennis S. Wish,
Dennis S. Wish, PE
(208) 361-5447 E-Fax
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