One of the problems with sprinklers in multi-storey car parks is that they freeze up in winter.
I was shocked to see that the fire had actually destroyed the concrete so that the rebars were all that was left of the floor in places. I'm not familiar with this particular one, but they are usually built with what appears to be very thick concrete, and I would have expected - perhaps naively - it to withstand fire a lot better.
If all multi-storey parks are built to the same standard, we may well find they have to be rebuilt! A single car fire - not all that unusual an event - could destroy the lot as it did in this case.
How long will it take insurance companies to amend the small print so you are not covered if you use a multi-storey car park I wonder?
I was surprised at the concrete disappearing as well, I wonder if the concrete had some sort of artificial filler mixed in it? You wouldn't expect it to be holding much moisture in those locations which is sometimes the reason for bursting.
The rebars seemed a bit sparse as well, which reminds me of the Birmingham multi-storey that had the overhanging side collapse off without any signs of re-enforcement at all despite being unsupported.
There was the multi-storey carpark in London a couple of years ago that flooded, the insulation under the parking surface expanded and lifted the cars crushing them against the ceiling.
We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn
AM sure the design of concrete beams and columns allow for concrete spalling away from the rebar as its quite a common thing in certain circumstances. The only heat that could seriously damage concrete is from accelerants like Thermite which is used for cutting steel and concrete in demolition work (and a derivative of which was found at all 3 world trade centre collapses ..one reason of many why some architects and engineers around the world question the official collapse theories. Shoddy workmanship might get the rebar too near the surface if wrong spacers were used or it was tied up wrongly.
DD I remember that expanding insulation one..quite amazing at the power in it.