The real issue is that the force on the eqp. is too high. Expansion is small and I'm trying to find a way to allow it rathar than create force at the equipment. Since defining the clamp is a bit difficult, I'd hoped the gasket would relieve the problem. Lift off does not seem to be a problem as the reaction force at the eqp. is pushing down on the clamp.

I will solve this problem by defining the hangar by engineering fiot and requiring the guys to either move conflicts or provide better field drawings.

Apparently an experienced analyst could see how other answers on this forum (and the others I searched) apply to my problem. The information you've provided has been unique and valuable.

Thank you for your response.