|
|
||
|
|
|
|
Christian Horn writes:
“To stiffen the shallow vault, curved steel girders brace the two sides. The tensile girders are held away from the vault by regularly spaced steel struts on 8-inch- (20-centimeter-) diameter plates embedded in roughly 4-inch- (10-centimeter-) deep recesses.
“Where three elevated walkways enter the concourse, at the 66-foot- (20-meter-) long collapse area [see the previous slide), the lower portions of three sections of shell were omitted for the footbridge access. Steel connections transferred loads from the shortened shells to the full-length ones on either side.”
Page 77 / 114