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Engineering Lessons from September 28, 2018 Indonesian Tsunami: Scouring Mechanisms and Effects on Infrastructure
Krautwald C.a, Stolle J.b, Robertson I.c, Achiari H.d, Mikami T.e, Nakamura R.f, Takabatake T.g, Nishida Y.g, Shibayama T.g, Esteban M.g, Goseberg N.a, Nistor I.h
a Dept. of Architecture, Civil Engineering and Environmental Sciences, TU Braunschweig, Braunschweig, 38106, Germany
b Eau Terre Environment, INRS, Québec City, G1K 9A9, Canada
c Dept. of Civil and Environmental Engineering, Univ. of Hawaii at Manoa, Honolulu, 96822, United States
d Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Kota Bandung, Jawa Barat, 40132, Indonesia
e Dept. of Urban and Civil Engineering, Tokyo City Univ., Setagaya City, Tokyo, 158-0087, Japan
f Faculty of Engineering, Niigata Univ., Niigata, 950-2102, Japan
g Dept. of Civil and Environmental Engineering, Waseda Univ., Tokyo, 169-8555, Japan
h Dept. of Civil Engineering, Univ. of Ottawa, Ottawa, K1N 6N5, Canada
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 American Society of Civil Engineers.The September 28, 2018 earthquake and tsunami, which occurred north of Palu City, Indonesia, attracted widespread interest from the scientific community due to the unusually large tsunami that occurred after a strike-slip earthquake with a relatively small moment magnitude (MW = 7.5). To understand the structural performance of buildings and infrastructure under hydrodynamic loads and their associated effects, the authors conducted field surveys in Palu City. Light wooden frame constructions and masonry infill walls were common in the area, some of which were severely damaged by the earthquake and tsunami. Reinforced concrete structures remained predominantly intact, although they suffered soil-related issues such as scour around rigid building members. Local structural failures caused by the loss of supporting soil were also observed during the field survey, resulting in an overall reduction in the stability of the inspected structures. Based on the observations made, knowledge gaps and research needs concerning coastal and structural scouring are discussed. These are tied into the latest community research activities and put in the context of a published ASCE standard chapter that discusses tsunami design.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Community researches,Earthquake and tsunamis,Hydrodynamic loads,Moment magnitudes,Scientific community,Strike-slip earthquakes,Structural failure,Structural performance[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Coastal engineering,Engineering lessons,Field survey,Hydrodynamic forces,Palu tsunami,Scouring mechanisms[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1061/(ASCE)WW.1943-5460.0000620[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]