fgerlak

Look for a truck loaded with prefab steel shapes. Maybe soon?

Thank you. I never knew that an avatar=picture. But I can’t enter a picture from the photos on my ipad. Is there a way to do that? I haven’t the slightest idea what its url is.

How do I put a picture up next to my name?

The Illuminating Building (1956 - 55 Public Square) is half concrete half steel (top half). But it was a continuous build. The magazine article shows eccentric forms (triangular shaped, a rubrick of engineering) to transfer loading that is not centered between structural systems. Because 515 was designed in total, I assume everything lines up. Maybe the steel frame was a concession to the tighness of the site, is designed on a different module, and thus needs to be “lined up” with its concrete predecessor.

Saturday afternoon, 3 PM.

Well then we will see how the steel frame is attached to the concrete base. 55 Public Square is half concrete, half steel. I never understood that, but I saw it happen. Steel is easier to handle than concrete and won't require a fleet of mixers. But steel supply needs large trucks and can be capricious in supply as it comes from somewhere else, not Cleveland or Pittsburgh anymore. That might explain the position of the crane within the building perimeter. Better for placing steel, quite difficult for concrete, no other place to put it.

There are hundreds of things that must be done before "watchable" construction begins. I am assuming the building will be framed in reinforced concrete. Too bad, steel framing is so interesting to watch. I am also assuming that Short Vincent will be the lay down area which might be out of range for the crane. So a feed area, within crane range must be established somewhere.

Looks like the construction crane is within the boundaries of the building. That creates a shaft within the building that must be put to use after the crane is removed. Could be the itility uptake and maybe an elevator bank.

Will there be a "515 CAM" employed to follow progress.