Publication Notes
"Several innovative structural concepts were undertaken that led to significant cost savings and improved building safety. Primary among these was a hybrid shear-wall core to provide seismic saftey. Considered a first, the system combines steel plates, braces, and beams into cells that are shielded at the corners by giant steel cylinders filled with concrete. The spine, which had the advantage of a pure concrete core without the disadvantages of weight and mass, maximized structural strength while minimizing bulk." (p. 41)