e-Analysis of High-Rise Buildings Subjected to Wind Loads
Publication: Journal of Structural Engineering
Volume 134, Issue 7
Abstract
The NatHaz Aerodynamic Loads Database (NALD) (http://aerodata.ce.nd.edu) introduced in 2000 has served an important first step in establishing an on-line experimental archive of high-frequency base balance (HFBB) data for use in the preliminary design of high-rise buildings subjected to wind loads. As a result, NALD was recently introduced in the Commentary of ASCE 7-05 (C6.5.8) as an alternative means of assessing the dynamic wind load effects on high-rise buildings. This paper presents NALD version 2.0 (v. 2.0), integrating the latest advances in data management and mining for interactive queries of aerodynamic load data and an integrated on-line analysis framework for determining the resulting base moments, displacements, and equivalent static wind loads for survivability and accelerations for serviceability (habitability). The key feature of NALD v. 2.0 is the flexibility its analysis module offers: Users may select not only the data from the on-line NatHaz aerodynamic loads database, but also may input desired power spectral density (PSD) expression or wind tunnel-derived PSD data set obtained from a HFBB experiment for the evaluation of wind load effects on high-rise buildings. Thus, it serves as a stand-alone analysis engine. Examples illustrate the capabilities of NALD v. 2.0 and provide comparisons of response estimates to demonstrate the flexibility of the analysis engine to provide a platform that can be readily expanded and supplemented to yield a comprehensive, simplified, and efficient avenue for e-analysis of high-rise buildings.
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Acknowledgments
The writers wish to acknowledge Yin Zhou, formerly of Notre Dame, Chii-Ming Cheng, Tamkang University, Taipei, and Rachel Bashor, NatHaz Modeling Laboratory for their respective contributions. The writers are also grateful for the financial support in part by the National Science Foundation via Grant Nos. NSFCMMI 03-24331, NSFCMMI 06-01143, and NSFCBET 07-42191, and a Postdoctoral Fellowship from Korea Science and Engineering Foundation (KOSEF)KOSEF.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 134 • Issue 7 • July 2008
Pages: 1139 - 1153
Copyright
© 2008 ASCE.
History
Received: Dec 1, 2006
Accepted: Dec 2, 2007
Published online: Jul 1, 2008
Published in print: Jul 2008
Notes
Note. Associate Editor: Kurtis R. Gurley
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