The question I would first ask is what type of glass is it? It also looks like it is all tied together. I believe I would treat it as a truss..once one section fails the rest may fail as well. Having this identifed in pre-plans and ensuring alternate routes for operations and egress would be a good start to this scenario.
As Mr. Huston states, I would definately treat it as a truss. Another problem I see is the use of TICs creating false images, along with any tolls / couplings / hose streams breaking the glass
To add another thought , The glass is going to be extremely slippery ,even if still functional for overhaul ,