sexta-feira, 2 de abril de 2010



Rebar in the core of a PSD building is typically more dense than that of a prescriptive tower, especially at the base. Two sets of BRB outriggers span from levels 26 to 32 and 51 to 55, and tie the core to full-tower-height outrigger columns. Each system of eight BRBs consists of two pairs of diagonals that form mirror-image Ks.

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