Thin concrete shell roof 3

[lsmfse]

I have an owner who wants to suspend equipment from a thin shell concrete roof (Monoclastic shell). The shell varies from 4" to 2 1/2" thick. The arch is 80 feet wide. Knowing I can't get proper embedment with an epoxy anchor, I would penetrate through the shell and anchor from the top surface. The other option is to design a ground mounted support system. Any thoughts on this?

 

[lsmfse]

Great suggestions saikee, if the ownership wishes to move on with a more detailed analysis, I will consider these. I worked on a parking structure repair where the upper deck leaked, located where de-icing salts were used because of the snow. Testing lab performed pH tests for carbonation, core tests etc. The deterioration was much more extreme than the project I am talking about and the cost for the repairs exceeded over a million US dollars.