Evaluation of wave impact loads on caisson breakwaters based on joint probability of impact maxima and rise times |
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| Authors: | Giovanni Cuomo Rodolfo Piscopia William Allsop |
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| Institution: | 1. Coastal Structures, HR Wallingford, Howbery Park, Wallingford, OX10 8BA, UK;2. HAREC s.r.l., Via Gregorio VII, 80, Rome, 00165, Italy;3. Aquatecno s.r.l., Via Goito 39, 00185 Roma, Italy;4. Maritime Structures, HR Wallingford, Howbery Park, Wallingford, OX10 8BA, UK;5. Department of Civil and Environmental Engineering, University of Southampton, UK |
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| Abstract: | When waves break against seawalls, vertical breakwaters, piers or jetties, they abruptly transfer their momentum into the structure. This energy transfer is always spectacular and perpetually unrepeatable but can also be very violent and affect the stability and the integrity of coastal structures. Over the last 15 years, increasing awareness of wave-impact induced structural failures of maritime structures has emphasised the need for a more complete approach to dynamic responses, including effects of impulsive loads. At the same time, movement of design standards toward probabilistic approaches requires new statistical tools able to account for uncertainties in the variability of wave loading processes. This paper presents a new approach to the definition of loads for use in performance design of vertical coastal structures subject to breaking wave impacts. |
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| Keywords: | Wave loads Wave impacts Joint probability Caisson breakwaters Coastal structures Design load Performance design Probabilistic design methods |
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