UNCERTAINTY PARAMETERS OF THE MEASURED AND CALCULATED WAVE FORCES ON THE PERFORATED CAISSON BREAKWATER

DC Field Value Language
dc.contributor.author 김승우 -
dc.contributor.author 오상호 -
dc.contributor.author 지창환 -
dc.date.accessioned 2020-07-15T21:52:05Z -
dc.date.available 2020-07-15T21:52:05Z -
dc.date.created 2020-02-11 -
dc.date.issued 2016-05-11 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/24826 -
dc.description.abstract The purpose of this study is to analyze the uncertainty of the wave forces on the perforated caisson breakwater. Understanding the uncertainty of the wave force enables the caisson breakwater to be designed reasonably and economically. Theprobabilistic design methods, such as the reliability-based design method or the performance-based design method that are based on the reliability principles of ISO 2394 and ISO 21650, are becoming a global design standard. In this study, the uncertainty parameters of perforated caisson breakwaters were evaluated by using the normal and the log-normal distributions. The representative parameters evaluating the uncertainty of the wave forces are the bias and the coefficient of variation for the normal distribution and the scale and location parameters for the log-normal distribution. For the narrow chamber case (Group 1), most of the wave forces followed the normal distribution except for the wave force acting on the slit part at the crest I. The bias in Group 1 was widely distributed from -39 % to 79 % depending on the wave phase and the wave force. For the wide chamber case (Group 2), all the wave forces followed the log-normal distribution, but the uncertainty parameters of the log-normal distribution cannot directly be applied in the design process. The bias in Group 2 was also widely distributed between -55 % and 14 %.robabilistic design methods, such as the reliability-based design method or the performance-based design method that are based on the reliability principles of ISO 2394 and ISO 21650, are becoming a global design standard. In this study, the uncertainty parameters of perforated caisson breakwaters were evaluated by using the normal and the log-normal distributions. The representative parameters evaluating the uncertainty of the wave forces are the bias and the coefficient of variation for the normal distribution and the scale and location parameters for the log-normal distribution. For the narrow chamber case (Group 1), most of the wave forces followed the normal distribution except for the wave force acting on the slit part at the crest I. The bias in Group 1 was widely distributed from -39 % to 79 % depending on the wave phase and the wave force. For the wide chamber case (Group 2), all the wave forces followed the log-normal distribution, but the uncertainty parameters of the log-normal distribution cannot directly be applied in the design process. The bias in Group 2 was also widely distributed between -55 % and 14 %. -
dc.description.uri 1 -
dc.language English -
dc.publisher University -
dc.relation.isPartOf 6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab16) -
dc.title UNCERTAINTY PARAMETERS OF THE MEASURED AND CALCULATED WAVE FORCES ON THE PERFORATED CAISSON BREAKWATER -
dc.type Conference -
dc.citation.endPage 8 -
dc.citation.startPage 1 -
dc.citation.title 6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab16) -
dc.contributor.alternativeName 오상호 -
dc.identifier.bibliographicCitation 6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab16), pp.1 - 8 -
dc.description.journalClass 1 -
Appears in Collections:
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse