An evolution of computational tools in commercial wind engineering practice
John Kilpatrick
Biography
John Kilpatrick, Ph.D., P.Eng., C.Eng., F.ICE, M.ASCE is the former Wind Engineering Practice Leader at RWDI and is a Principal of the firm. John began his journey in Wind Engineering at the University of Western Ontario, completing a Master’s degree in 1996, studying the influence of wind-induced motions on the performance of tall buildings. On graduation John immediately embarked on a career at RWDI, working on variety of wind tunnel investigations including the Stade Olympique in Montreal, the Taipei 101 tower in Taiwan, and the new parallel crossing at the Tacoma Narrows Bridge. John began a PhD at The University of Western Ontario in 2000, where he participated in the Chicago Tall Buildings Project. This study was led by the University of Notre Dame’s NatHaz Modeling Laboratory and included The Boundary Layer Wind Tunnel and structural engineers Skidmore Owings and Merrill (SOM). The research was a pioneering study that monitored full-scale wind-induced responses of Chicago skyscrapers to validate and refine wind tunnel and structural design modeling. The paper “Validating Wind-Induced Response of Tall Buildings: Synopsis of the Chicago Full-Scale Monitoring Program” was recipient of the ASCE’s 2008 State-of-the-Art in Civil Engineering Award, presented by the American Society of Civil Engineers award. During his now 30 years at RWDI, John has earned a reputation as an insightful wind engineer who delivers clarity and value for clients. John is a member of the following technical committees: ASCE 49 Task Committee on Wind Tunnel Testing for Buildings and Other Structures; Structural Engineering Institute (SEI) Pre-Standard for Performance-Based Design for Wind; ASCE Tall Buildings task committee – Design and Performance of Tall Buildings for Wind; and the ASCE 7-28 Wind Loads Sub-Committee. In addition to his current role as Senior Technical Director at RWDI, John is an Adjunct Professor at Western University.
Abstract
Wind engineers traditionally leverage wind tunnel methods to inform architects, structural engineers and project stakeholders about the wind-induced performance of their buildings. Timelines for design of buildings have shortened considerably over decades; the duration of the concept design stage of a standard tall building is now on the order of 12-16 weeks. The process of physically constructing, testing and analysing the results of the wind tunnel studies may take between 4 to 8 of those weeks, putting significant pressure on the design team to optimize the building within a short timeframe. Computational approaches have enhanced and accelerated conceptual design. While there are important uncertainties related to their use, computational methods provide insights that cannot be derived via physical tests. RWDI has been developing computational wind engineering (CWE) tools to assist with early design of buildings, and the author will present examples of how large eddy computational fluid dynamics (CFD) simulations and artificial intelligence (AI) models have evolved at RWDI, changing aspects of commercial wind engineering consulting.
Address
1151 Richmond Street, London, ON, N6A 3K7
cwe2026@uwo.ca
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