Reply to thread

Message

<blockquote data-quote="Phil Graham" data-source="post: 50698" data-attributes="member: 430">Re: Commissioned Report on Indiana Fair Tragedy&nbsp;Dye penetrant tests have their own ASTM standards, and you&#039;re right that they are not for an untrained person. Ideally you&#039;d want at Level II or Level III certified NDT tech:<a href="http://www.asnt.org/shop/merchant.ihtml?pid=1633&amp;lastcatid=11&amp;step=4" target="_blank">http://www.asnt.org/shop/merchant.ihtml?pid=1633&amp;lastcatid=11&amp;step=4</a>Self supporting would be very difficult based on designs composed of truss sticks. They are carefully built to transmit only dead load, and not lateral loads or bending moments to the support truss legs. There&#039;s nothing inherently wrong with guyed systems, indeed its often the most expedient engineering method.I can&#039;t speculate on where additional guying could be placed to distribute the loads, but it should be possible to distribute it better.</blockquote>

[QUOTE="Phil Graham, post: 50698, member: 430"] Re: Commissioned Report on Indiana Fair Tragedy Dye penetrant tests have their own ASTM standards, and you're right that they are not for an untrained person. Ideally you'd want at Level II or Level III certified NDT tech: [URL]http://www.asnt.org/shop/merchant.ihtml?pid=1633&lastcatid=11&step=4[/URL] Self supporting would be very difficult based on designs composed of truss sticks. They are carefully built to transmit only dead load, and not lateral loads or bending moments to the support truss legs. There's nothing inherently wrong with guyed systems, indeed its often the most expedient engineering method. I can't speculate on where additional guying could be placed to distribute the loads, but it should be possible to distribute it better. [/QUOTE]

Verification