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Pretty certain that both 1 and 30 Dalton are CIP buildings and not steel beams and columns

This all depends on the structural engineer. Advancing the core only helps push your schedule. Its much faster. Some structural engineers dont allow this because of the shear wall/slab interface (developing splice lengths of rebar into the shear walls). Dowel bar subs (couplers) can be cast...

Price, schedule and floor to floor heights are all factors. Cast in place buildings tend to go up faster and following activities can happen faster. For example: with a steel building you have to detail/weld steel after erection. Then you have to install Q decking, rebar, pour stop and then...

There is a quick release lever on the peri jack which will drop the panel a few inches from the bottom of the slab. The laborers hit the quick release, drop the panels, then shimmey the panel out between the surrounding jacks. This allows the peri jack to remain in its erect position to fully...

They are using the Peri Sky Deck system for their concrete formwork. This is composed of flat composite panels that are supported by the yellow jacks you see in the photos. The formwork panels can be stripped after about 24 hours after concrete is placed (this is all dependent on the specified...

They are called rebar terminators (http://www.erico.com/public/library/concrete/lt0434.pdf) The rebar either comes threaded from the fab shop and the terminator is screwed on, or it is mechanically fastened to the end of a standard bar with set screws. One big advantage of these is to reduce...

*half of the slab is in

First caisson was placed today. 36 more to go.