Outrigger Design for High-Rise Buildings

Hi Sun Choi is a Senior Principal at Thornton Tomasetti and has approximately 20 years of experience in structural analysis, investigation, design, and review of a variety of building types, including commercial and residential buildings. Her expertise includes the design of supertall buildings for seismic risk assessment, building motion due to wind, performance-based design, and waterfront developments on reclaimed land.Goman Ho is a Director at Arup. He joined Arup in 1992 after his postgraduate study. He has been significantly involved in a large number of tall building and long span projects, from analysis and design to construction. His research interests include stability and nonlinear transient analysis. He is the past president of the ASCE Hong Kong, current fellow member of the HKISC, and editor of the International Journal of Advanced Steel Construction.Leonard Joseph With more than 35 years of experience, Leonard Joseph has analyzed, designed, and reviewed high-rise buildings, sports facilities, hangars, hotels, historic buildings, manufacturing facilities, and parking garages. He works with a wide variety of materials, including structural steel, reinforced concrete, precast and posttensioned concrete, masonry, wood, and light gage framing. For buildings around the world, Len deals with seismic, wind, and other environmental hazards, and incorporates local construction practices into his designs.Neville Mathias is an Associate Director and Senior Structural Engineer with Skidmore, Owings & Merrill, LLP. He has worked extensively on the structural design of major buildings across California and around the world for the past 26 years. He specializes in the seismic design of non-prescriptive buildings using performance based, non-linear methodologies.

• 1. Introduction to Outrigger Systems 2. Design Considerations for Outrigger Systems 3. System Organization and Examples 4. Recommendations and Future Research