Determination of Basic Wind Velocity for Wind Load-Governed Limit State
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Bibliographic Details
| Author(s): |
Ji Hyeon Kim
(Seoul National University)
Hae-Sung Lee (Seoul National University) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019 | ||||
| Published in: | The Evolving Metropolis | ||||
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| Page(s): | 2677-2681 | ||||
| Total no. of pages: | 5 | ||||
| DOI: | 10.2749/newyork.2019.2677 | ||||
| Abstract: |
This paper proposes a general procedure for evaluating a nominal value of wind velocity for a wind load- governed limit state to secure a target reliability index during the design life of a structure. The nominal value of wind velocity, referred to as a basic wind velocity, and wind load factor should be determined so that the factored wind load effect secures a target reliability index for a wind load-governed limit state. In this study, the analytical form of the return period of the basic wind velocity is expressed as a function of the target reliability index, wind load factor, and statistical parameters of wind pressure, which are derived as linear functions of the coefficient of wind velocity. The proposed approach is applied to the Korean Highway Bridge Design Code-Cable supported Bridge, which specifies the design life of a structure as 100- and 200-year. |
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| Keywords: |
200-year bridge basic wind velocity wind load-governed limit state target reliability index reliability-based design code
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