The authors investigated building damage conditions in five areas of Galle, Matara, and Hambantota, Sri Lanka affected by the 2004 Indian Ocean Tsunami. This paper presents tsunami vulnerability functions for the buildings, a relationship between building damage and inundation, in the country. In order to develop the functions, 1,535 building damage data in terms of structural types, solid (mainly reinforced concrete) and non-solid (masonry and timber-frame), and inundation height data of 153 points obtained by the field survey and contour models were examined. The developed fragility curves clearly show structural vulnerability differences, and it will be useful for damage estimation to reduce tsunami related damage in the country in the future.
The 2004 Indian Ocean tsunami damaged a number of buildings in many Asian countries. The research objective of this paper is to determine the significant predictor variables and the direction of their relationships regarding the building damage level. This quantitative study used data collected by Murao and Nakazato [“Recovery curves for housing reconstruction in Sri Lanka after the 2004 Indian Ocean tsunami,” J. Earthquake Tsunami 4(2), 51–60; “Vulnerability functions for buildings based on damage survey data in Sri Lanka after the 2004 Indian Ocean Tsunami,” Proc. 1st Int. Conf. Sustainable Built Environment, Kandy, Sri Lanka, pp. 371–378] in Sri Lanka for analysis via the statistical approach. The tested explanatory parameters included the inundation depth, the structural materials, and the areas. This research is among the first pioneering efforts in applying the statistical analysis to investigate the influential parameters in tsunami damage areas. This work can contribute to the damage analysis research area in terms of providing the proved parameters as well as contributing to the practical understanding of urban planners, engineers, and related persons who are involved in building construction and disaster management.
This paper presents fragility curves for buildings based on damage data due to the 1995 Hyogoken −Nanbu Earthquake . Tlie fragility curves in terms of the structural type and construction period were constructed using the building damage data of Nada Ward surveyed by Kobe City for the purpese of property 1ax reduction . 1I was also demonstrated that the number of damaged buildings in . Nada Ward estimated by the fragility curves fus the actual damage by the earthquake , The frag 正 lity curves thus obtained may be useful f () r damage assessments of buildings in Japan . Keywords ' the 1995 Hyogoken −Nanbu Earthquake , bttitding damage , strong gr (冫und motion , Nada 肱 嘱 加 8 "ity curve , damage a ∬ ε∬ ments 兵
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