| Vol. - No. | Vol.1 - No.3 |
|---|---|
| Date | Sep., 2012 |
| Title | Outrigger System Design Considerations |
| Author | Hi Sun Choi1 and Leonard Joseph2+ |
| Institutions |
1Thornton Tomasetti, Inc, 51 Madison Avenue, New York, NY 10011, USA 2Thornton Tomasetti, Inc, 6080 Center Drive, Suite 260, Los Angeles, CA 90045, USA |
| Abstract | Outrigger systems have been widely used in super tall buildings constructed since the 1980's, eclipsing previously favored tubular frame systems. However, outriggers are not listed as a seismic lateral load resisting system in any code. Design guidelines are not available. The CTBUH formed the Outrigger Working Group to develop the first-ever outrigger system design guide with an historical overview, considerations for outrigger application, effects on building behavior and design recommendations including concerns specific to this structural system such as differential column shortening and construction sequence impacts. Project examples are presented for various outrigger system types, including advancements in their technology. The guide provides a basis for future discussions on this important topic. |
| Keyword | Outrigger, Code, Design guidelines, CTBUH, Outrigger working group, Tall building design |
| PP. | PP.237~246 |
| Paper File |
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