Distinguished Webinar Series in Earthquake Engineering and Seismology
Organized by the Canadian Association of Earthquake Engineering and Seismology
Supplementary Damping Systems in Tall & Slender Buildings
Date: Wednesday, November 22, 2023, Time: 3:00 p.m. EDT
Registration Link: Zoom Webinar
Abstract
This talk offers an overview of the state-of-the-practice in tuned damping systems used in high-rise buildings. The topics covered will also have broad applicability to bridges (either pedestrian and/or vehicular) and other flexible or slender structures.
Used almost exclusively for their ability to aid in the optimization of a structure for serviceability criteria, some of these structures also happen to be in seismically active parts of the World. The intended purpose of reducing vibrations due to either wind or occupant activity, in events ranging from commonplace thru “highly unlikely”, is obviously paramount. Nevertheless, the structure-damper system must also anticipate the loads and movements associated with earthquake and be designed to “ride out” any reasonable earthquake unscathed, ready for regular performance again only moments later.
Beginning with a simple, brief primer on the light damping of civil structures, the presentation will then describe the design of a small assortment of damper case studies, including Taipei 101 (located in the Pacific “Ring of Fire”). Both solid mass and liquid-based dampers will be included. Real-world considerations of constructability, proof of performance, commissioning, and ongoing inspections will be discussed.
About:
Trevor Haskett is an experienced Technical Director and the Practice Area Leader in Motioneering, formerly the Damping Systems team within its now-sister company, RWDI. He is known for working closely with clients and internal project teams to analyze vibrations both large and small, and for conceiving and executing highly effective motion control and damping systems for structures such as bridges and tall buildings.
With academic training and extensive project experience in mechanical engineering, vibration control, and structural dynamics, Trevor develops innovative approaches by bridging the gulf between mechanical and structural design paradigms.