8TOMASETTI R,BURNS J and etc.Structural Engineering of the 600m Chicago Spire[].th IABSE CongressCreating and Renewing Urban Structures-Tall BuildingsBridges and Infrastructure.2008
9.CEB-FI PModel code 1990:Design Code[]..1993
10Jose I. Restrepo, Robert Park and Andrew, Buchanan. Tests on Connections of Earthquake Resisting Precast Reinforced Concrete Perimeter Frames of Buildings [ J ]. PCI JOURNAL, 1995. 40 (4) :44-61.
