It's really mind-boggling. The walls will get steel rods screwed into them at the bottom, and those rods (and the binding with the concrete floor) will hold the walls up once the floor's poured. The slab gets very thick around the edges, like about 12" or more, you can see a grey area at the inside lower edge of some panels that is indicative of the final floor level.
For some earthquake-experience based reasons they have gone away from welding the panels together. Seems counter-intuitive, doesn't it?
In the middle of the floor are piles of crushed rock as base for the floor, which will 'only' be 4" thick in the centre of each room. So they'll level that before the concrete trucks come in, put in whatever ducts and the steel ...
Oh, that's clever with how they tie the walls into the slab. I wondered when I saw the holes at the bottom if it was for tension rods for the concrete slab. They do that for some home slabs here to keep them from cracking - they float intact over the soil (the rods go from edge to edge of the slab and get torqued down behind steel plates).
Here they seem to pour the floor first, then use it as the platform for pouring the wall sections that they tilt up later and weld together. I can only guess that NZ has discovered it's better for the building to sway instead of being rigid.
Last Edit: Nov 15, 2016 21:48:23 GMT -5 by DryCreek
No earthquake around here. We do have geothermal activity in a few places in the Far North, but nothing much, and we seem to be far enough away from the fault lines that we don't seem to feel any quakes. Which, by the way, is just fine with me!
That last quake, by all accounts a pretty big one except it didn't strike a population centre full on, was about 1000km from here. Kaikoura is a pretty small town, as is Hamner Springs - they are both pretty tourist-y places though. Wellington, the capitol, also got shaken up a bit. Several buildings have already been condemned. Wellington is still waiting for The Big One though ... which apparently is overdue, but that's been bandied about by geologists since the 80s at least. Not that 30 years counts for much on the geological time scale.
So yes, we're fine. Thanks for asking. The worker bees are getting the reinforcing steel ready for the pour on Friday. We got the - pretty much final - floor plan for the house to the engineer/architect tonight. He thinks he'll be ready to submit it to council after the X-mess holidays.