Thanks Martin. Shoot him this link first mate, that'd be so so so helpful already. If he thinks & wants to help that's all up to him (let me know)
Total idiot here so please, tell him that if he needs more data than what I've already published he is going to wait forever. I don't even have the grade of the concrete used but know roughly that it can hold around 500kg/sq meter.
I can do the 'static' simulation (there, the idiot coming out lolll) but that is only good to help me to find out where to add reinforcements (as in over-engineering the thing using 1970's techniques). All I need to know is; do I bloody need it or the floor will sustain the weight as per original design. Never expected it to be that complicated.
^ think the 'computer' says the floor could do with an I-beam support here and there lolll