Stochastic Modelling of Wave Loads on Floating Bridges: Efficient Calculation of Cross-Spectral Densities
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Bibliographic Details
| Author(s): |
Finn-Idar Grøtta Giske
(Norwegian University of Science and Technology, Trondheim, Norway Multiconsult, Oslo, Norway)
Bernt Johan Leira (Norwegian University of Science and Technology, Trondheim, Norway) Ole Øiseth (Norwegian University of Science and Technology, Trondheim, Norway) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 48-56 | ||||
| Total no. of pages: | 9 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.0048 | ||||
| Abstract: |
This paper outlines a fast and accurate approach for calculation of the auto- and cross-spectral densities in the stochastic modelling of wave loads on floating bridges. For long-term response predictions used in extreme response assessment and fatigue design, the efficiency of this approach may prove valuable. An illustration of the approach is given for a pontoon type floating bridge, and the performance is compared with the traditional computation method. The gain in computational effort is seen to increase with increasing bridge length. |
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| Keywords: |
pontoon pontoon structure floating bridge wave excitation load directional waves cross-spectral density
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