Studies on Hazard Characterization for Performance-based Structural Design

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dc.contributorRosowsky, David V.
dc.contributorRoesset, Jose M.
dc.creatorWang, Yue
dc.date.accessioned2010-07-15T00:16:24Z
dc.date.accessioned2010-07-23T21:47:11Z
dc.date.accessioned2017-04-07T19:57:21Z
dc.date.available2010-07-15T00:16:24Z
dc.date.available2010-07-23T21:47:11Z
dc.date.available2017-04-07T19:57:21Z
dc.date.created2010-05
dc.date.issued2010-07-14
dc.description.abstractPerformance-based engineering (PBE) requires advances in hazard characterization, structural modeling, and nonlinear analysis techniques to fully and efficiently develop the fragility expressions and other tools forming the basis for risk-based design procedures. This research examined and extended the state-of-the-art in hazard characterization (wind and surge) and risk-based design procedures (seismic). State-of-the-art hurricane models (including wind field, tracking and decay models) and event-based simulation techniques were used to characterize the hurricane wind hazard along the Texas coast. A total of 10,000 years of synthetic hurricane wind speed records were generated for each zip-code in Texas and were used to statistically characterize the N-year maximum hurricane wind speed distribution for each zip-code location and develop design non-exceedance probability contours for both coastal and inland areas. Actual recorded wind and surge data, the hurricane wind field model, hurricane size parameters, and a measure of storm kinetic energy were used to develop wind-surge and wind-surge-energy models, which can be used to characterize the wind-surge hazard at a level of accuracy suitable for PBE applications. These models provide a powerful tool to quickly and inexpensively estimate surge depths at coastal locations in advance of a hurricane landfall. They also were used to create surge hazard maps that provide storm surge height non-exceedance probability contours for the Texas coast. The simulation tools, wind field models, and statistical analyses, make it possible to characterize the risk-consistent hurricane events considering both hurricane intensity and size. The proposed methodology for event-based hurricane hazard characterization, when coupled with a hurricane damage model, can also be used for regional loss estimation and other spatial impact analyses. In considering seismic hazard, a risk-consistent framework for displacement-based seismic design of engineered multistory woodframe structures was developed. Specifically, a database of probability-based scale factors which can be used in a direct displacement design (DDD) procedure for woodframe buildings was created using nonlinear time-history analyses with suitably scaled ground motions records. The resulting DDD procedure results in more risk-consistent designs and therefore advances the state-of-the-art in displacement-based seismic design of woodframe structures.
dc.identifier.urihttp://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7742
dc.language.isoeng
dc.subjecthazard
dc.subjectrisk
dc.subjecthurricane
dc.subjectwind speed
dc.subjectstorm size
dc.subjectsimulation
dc.subjectperformance-based engineering
dc.subjectsurge
dc.subjectwind-surge model
dc.subjectTexas
dc.subjectdirect displacement design
dc.subjectseismic design
dc.subjectwood-frame structures
dc.titleStudies on Hazard Characterization for Performance-based Structural Design
dc.typeBook
dc.typeThesis

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Texas A&M University at College Station