Welcome back for another month's worth of work at two buildings, Post House by the Alterra Group in this article, and NY2 by The Daniels Corporation in the companion article. While not exactly a scientific survey, the series should illustrate that the course of each building's construction is unique despite the commonalities that all construction jobs share.

While last month it took a trainded eye to see what had changed at NY2 while Post House had changed significantly, this month it seems that NY2 has taken off while Post House still has complicated floors to work through. Click this link to compare last month at Post House with this month.

Post House construction seen from above, looking southwest, image by Craig White

At the back of the Post House site, above and immediately below, we can see that the bulk of the work lately has been the very beefy concrete walls, columns, and beams of the first floor of the structure. All sorts of uses unique to this floor mean that special rooms, including those with greater spans in some cases than betrween walls in the floors above mean that some loads must be transfered at this stage. A transfer slab—an especially thick floor with more than the typical amount of strengthening steel rebar—is used to move those loads from the columns that will be built above to ones which can send the load to the foundation below.

Post House construction seen from above, looking southwest, image by Craig White

Post House construction seen from George Street, looking southeast, image by Craig White

At the front of the building on George Street, the viewer will see tht the building's second floor walls are in here now, and that supports have gone in for forms for the next floor. Concrete will be poured into the next forms to create the third floor slab within about a weeks' time.

Post House construction seen from George Street, looking northeast, image by Craig White

How many floors will there be to show at the end of August? We shall see: once the third floor slab is in, we expect that construction on this Wallman Architects-designed 21-storey building should pick up speed, and should complete four to five floors a month after that.

If you want to know more about Alterra's Post House, click on our dataBase page for the project, linked below. Get in on the conversation in one of the associated Forum threads, or leave a comment in the space provided on this page.