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Stochastic Modelling of Wave Loads on Floating Bridges: Efficient Calculation of Cross-Spectral Densities

 Stochastic Modelling of Wave Loads on Floating Bridges: Efficient Calculation of Cross-Spectral Densities
Author(s): , ,
Presented at IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016, published in , pp. 48-56
DOI: 10.2749/stockholm.2016.0048
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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 pred...
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Bibliographic Details

Author(s): (Norwegian University of Science and Technology, Trondheim, Norway Multiconsult, Oslo, Norway)
(Norwegian University of Science and Technology, Trondheim, Norway)
(Norwegian University of Science and Technology, Trondheim, Norway)
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:
Page(s): 48-56 Total no. of pages: 9
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.

Keywords:
pontoon pontoon structure floating bridge wave excitation load directional waves cross-spectral density

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