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Probabilistic design tools for vertical breakwaters

Obiettivo



The proposed work is aimed to continue, extend and close the ongoing MCS-Project under MAST II. Its overall objective is to develop and to implement a Probability based Integrated Design Approach (PIDA) for vertical breakwaters and further classes of monolithic structures where wave effects dominate design considerations.
To achieve this goal, the results gained in MAST I, in further national research projects and in the ongoing MCS-Project, as well as the new knowledge to be generated in this project will be linked together to develop and implement probabilistic design tools which should replace the conventional deterministic design methods and form the scientific and technical basis for any future authoritative design guidelines.
The major part of the proposed work consists, however, in advancing the knowledge and preparing an integrated probabilistic framework. The following tasks are required for this purpose:
Task 1: Hydrodynamic aspects. This task will provide the hydrodynamic inputs (wave loadings, including associated uncertainties and statistical distributions) required to implement the prospective probabilistic tools in Tas 3D-hydraulic model tests will form the major part of this task, supplemented by further physical and numerical modelling.
Task 2: Foundation aspects. Beside the development of new knowledge related to failure mechanisms and dynamic soil properties, information will be generated on probability, partial safety factors and uncertainties for soil parameters and models, making them readily applicable for the implementation of probabilistic tools in Task 4. Analysis, numerical modelling and laboratory tests will build the major means for the investigations, supplemented by centrifuge modelling and prototype measurements.
Task 3: Structural aspects. This task will provide the methods to assess the structural strength of breakwater walls under pulsating and extreme impact loading, as well as their durability. Uncertainties in the loading and resistance parameters will be accounted for as needed in Task 4. Finite element analysis will principally be used for the investigations.
Task 4: Probabilistic tools. This task will develop in a first preparatory phase a probabilistic framework by linking together all above aspects and morphological aspects from results of ongoing MCS-Project and further national projects, by describing the failure modes, by establishing the fault trees, by evaluating the associated uncertainties and developing a reliability design philosophy. In a second phase, the probabilistic design tools will be developed. Based on reliability calculations at Level II and III, on the analysis of case studies and involvement of practitioners, a method to assess the overall reliability of vertical breakwaters will be developed and applied to a set of selected representative structures.

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Coordinatore

TECHNISCHE UNIVERSITAET BRAUNSCHWEIG
Contributo UE
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Indirizzo
51A,Beethovenstrasse 51A
38106 BRAUNSCHWEIG
Germania

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Ultimo aggiornamento: 1 Aprile 1996

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Permalink: https://cordis.europa.eu/project/id/MAS3950041/it

European Union, 2026

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