ARC342H1 Lecture Notes - Lecture 3: John Hancock Tower, Frank Lloyd Wright, Tensile Structure
Document Summary
Glass in its pure form is an extremely strong, perfectly elastic non- crystalline brittle solid which cannot be permanently deformed. Been used to enclose space since the 17th c. Flat glass manufacturing is developed by late 1950"s. They heat up the furnaces, start with recycled broken glass + sand + etc, Float glass floats on a bed of molten tin (why it"s called float class) in a room of 2000 degrees c. It continuously moves on rollers perfect and smooth. Glass cooling line -> moving slowly over there static rollers (single piece that"s 3m wide) single piece of glass will be 400m long before its cut. The performance of the glass (thermal and insulating qualities are determined by the kiln that are placed inside the glass) Big glass in big autoclaves -> things work on the huge tracks in the cylinders. (tube-like furnaces) One of the first large pieces of glass.
