|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.39 [2010] >
IJMS Vol.39(4) [December 2010] >
| Title: | Reliability based design method for coastal structures in shallow seas |
| Authors: | Prasad Kumar, B |
| Keywords: | Coastal structures
Extreme events
Design method
Reliability analysis
Wave forces |
| Issue Date: | Dec-2010 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Reliability
based approach is considered an important component in risk assessment of
coastal related projects. Such an approach is mandatory during the initial
planning stage of coastal projects thereby providing information on the failure
of structures. The damage to a structure can result from various environmental
forcing and moreover depends on where the structure is located. As a case
study, an existing coastal jetty at Andaman
Sea was chosen which was subjected to
extreme waves during a cyclonic episode prevalent in the Bay
of Bengal. Wave information encompassing this coastal jetty was
investigated using a very high resolution state-of-art SWAN wave model run in
non-stationary mode. Wave forces are estimated using Sainflou and
Miche-Rundgren methods along structural length of this jetty. In addition, wave
run-up and wave overtopping were estimated using SWAN model generated wave
information. A Level-II reliability analysis was carried out for this coastal
jetty, subjected to various levels of assumed uncertainty. Further, lifetime
and encounter probability under various degrees of uncertainty in load and
resistance for this coastal jetty has been investigated and analyzed. Based on
analysis, it is believed the significance of this work can lead vital
information for assessment studies in integrated coastal zone management. |
| Page(s): | 605-615 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.39(4) [December 2010]
|
|
