Advanced SearchSearch Tips
The Damped Outrigger - Design and Implementation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
The Damped Outrigger - Design and Implementation
Smith, Rob;
  PDF(new window)
The use of outriggers with dampers (the damped outrigger concept) has been shown to be a cost effective method of adding structural damping to a high rise building, and has been described in previous work by the author. This paper further develops the methods used to design such systems and highlights lessons learned in their application. This includes calculation methods, a review of subsequent research from others, and discussions regarding code-compliance.
Damping;Viscous dampers;Outriggers;Tall buildings;Wind engineering;Seismic engineering;
 Cited by
Aquino, R. and Tamura, Y. (2013). Framework for structural damping predictor models based on stick-slip mechanism for use in wind-resistant design of buildings. Journal of Wind Engineering and Industrial Dynamics, 117(2013), 25-37. crossref(new window)

ASCE 7-10. (2010) Minimum Design Loads for Buildings and Other Structures. American Society of Civil Engineers.

Choi, H. and Joseph, L. (2012). Outrigger system design considerations. International Journal of High-Rise Buildings, 1(3), 237-246.

Constantinou, M. C., Tsopelas, P., Hammel, W., and Sigaher, A. N. (2001). Toggle-brace-damper seismic energy dissipation systems. J. Struct. Eng. 127(2), 105-112. crossref(new window)

Council of Tall Buildings and Urban Habitat. (2008). Recommendations for Seismic Design of High-Rise Buildings. (available at

Fang, C., Tan, P., Chang, C. M., and. Zhou, F. L. (2015). A general solution for performance evaluation of a tall building with multiple damped and undamped outriggers. Struct. Design Tall Spec. Build. 24, 797-820. crossref(new window)

Gamaleil, R. (2008). Frequency-based response of damped outrigger system for tall buildings, MIT, Boston, MA.

Jackson, M. and Scott, D. (2010). Increasing efficiency in tall buildings by damping. Structures Congress, pp. 3132- 3142.

Park, K., Kim, D., Yang, D., Joung, D., Ha, I. and Kim, S. (2010). A comparison study of conventional construction methods and outrigger damper system for the compensation of differential column shortening in high-rise buildings. International Journal of Steel Structures, 10(4), 317-324.

PEER Tall Building Initiative - "Guidelines for Performance- Based Seismic Design of Tall Buildings". PEER 2010.

Smith, R., Merello, R., and Willford, M. (2010). Intrinsic and supplementary damping in tall buildings. Proceedings of the Institution of Civil Engineers, Structures and Buildings 16, April 2010 Issue SB2, Pages 111-118, doi: 10.1680/ stbu.2010.163.2.111

Smith, R. J. and Willford, M. R. (2007). The damped outrigger concept for tall buildings. Struct. Des. Tall Special Build. 16(4), 501-517. crossref(new window)

Tamura, Y. and Suganuma, S. (1996). Evaluation of amplitude dependent damping and natural frequency of buildings during strong winds. Journal of Wind Engineering and Industrial Dynamics.

Taylor, D. (2001). Buildings - design for damping. Taylor Devices, N.Tonawanda, NY.

Wang, Z., Chang, C. M., Spencer Jr, B. F., and Chen, Z. (2010). Controllable outrigger damping system for high rise building with MR dampers. SPIE, 7647 p.76473Z.

Willford, M. (2009). private correspondence

Willford, M. and Smith, R. (2008). Performance based seismic and wind engineering for 60 story twin towers in Manila. Proc 14WCEE, Beijing, China.

Zhou, Y., Zhang, C., and Lu, X. (2014). Earthquake relisience of a 632 m super-tall building with energy dissipation outriggers. Tenth U.S. National Conference on Earthquake Engineering, Anchorage, USA.

Infanti, S., Robinson, J., and Smith, R. (2008). Viscous dampers for high-rise buildings. Proc. 14WCEE, Beijing, China.

Zhou, Y. and Li, H. (2014). Analysis of a high-rise steel structure with viscous damped outriggers. Struct. Design Tall Spec. Build. 23, 963-979.