Open AccessEstimation of Tsunami Force Acting on Rectangular Structures
Author(s) -
Koji Fujima,
Fauzie Achmad,
Yoshinori Shigihara,
Norimi Mizutani
Publication year - 2009
Publication title -
journal of disaster research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.332
H-Index - 18
eISSN - 1883-8030
pISSN - 1881-2473
DOI - 10.20965/jdr.2009.p0404
Subject(s) - shore , geology , hydrostatic equilibrium , hydrostatic pressure , inertia , mechanics , envelope (radar) , tsunami wave , seismology , geotechnical engineering , physics , classical mechanics , engineering , oceanography , telecommunications , radar , quantum mechanics
Hydraulic experiments were conducted to estimate tsunami wave force acting on rectangular onshore structures. Used building models placed at several distances from a shoreline. Wave pressure was measured at points on exposed structures. Impact and standing-wave pressure at different points peaked at different moments in time, so tsunami force tended to be overestimated by integrating maximum wave-pressure distribution envelope. Measured total force was thus used to formulate tsunami force estimation equations. Hydrostatic formula was successful for structures near a shoreline, despite large scattering for structures far from a shoreline. Hydrodynamic formula was successful in all cases, although inertia was considerable for structures near a shoreline.