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Methodology for Development of Design Criteria for Joint Hurricane Wind Speed and Storm Surge Events: Proof of Concept.


pdf icon Methodology for Development of Design Criteria for Joint Hurricane Wind Speed and Storm Surge Events: Proof of Concept. (1640 K)
Phan, L. T.; Simiu, E.; McInerney, M. A.; Taylor, A. A.; Glahn, B.; Powell, M. D.

NIST TN 1482; NIST Technical Note 1482; 53 p. April 2007.

Keywords:

hurricanes; weather effects; wind velocity; methodology; simulation; design applications; structures; risks; hydrology; structural engineering

Abstract:

This report presents proof of concept for a methodology pertaining to combined effects of hurricane wind speed/storm surge height events. The methodology was developed jointly by the Building and Fire Research Laboratory (BFRL) of the National Institute of Standards and Technology (NIST) and the National Weather Service (NWS) and the Oceanic and Atmospheric Research (OAR) of the National Oceanic and Atmospheric Administration (NOAA). Its purpose is to develop site specific, risk-based design criteria for coastal structures subjected to the combined effects of hurricane wind speed and storm surge. The methodology utilizes an integrative, interdisciplinary approach that incorporates state-of-the-art knowledge in hurricane science, hydrology, probabilistic methods, and structural engineering needs, and involves the following steps: (1) selection of a stochastic set of hurricane storm tracks affecting the region of interest, (2) hydrodynamic simulation of the region of interest using program SLOSH and the selected storm tracks to generate time histories of wind speeds and corresponding time histories of storm surge heights at sites within the affected region, and (3) use of hurricane wind speed and storm surge height data generated in Steps (1) and (2) to develop (a) probabilistic information on joint wind speed/storm surge height events, and (b) risk-consistent structural design criteria.