Tohoku Tsunami Survey

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Onagawa Built Environment Captured with LiDAR • NSF Rapid grant - funding for LiDAR survey of selected buildings and topography • <strong>Survey</strong>s directed by Michael Olsen of OSU and Lyle Carden of Martin & Chock
Onagawa Three-Story Steel Building Frame Survival • Three-story steel moment-resisting frame exposed to 8 m/s outflow estimated from video analysis. • At about 67% blockage of the original enclosure (33% open), the return flow is sufficient to yield the top of the second story columns with 30-cm drift of third floor (First story column is stronger section.) • Fully clad building would have collapsed. Loss of cladding reduced the building’s projected area. • LiDAR scan shows final 50-cm third floor drift.
Page 1 and 2: Post-Disaster Structural Data Colle
Page 3 and 4: LiDAR Data Collection • 4 billion
Page 5 and 6: NEOWAVE Flow Depth - Onagawa
Page 7 and 8: Transect 2 N-S Transect 1 E-W
Page 9 and 10: Transect 2 N-S — : MSL; — : sea
Page 11 and 12: Lateral Loading on Walls - Japan
Page 13: Evaluation of Structural Response S
Page 17 and 18: Bore Strike on R/C Structure Minami
Page 19 and 20: NEESR - Structural Loading Direct B
Page 21 and 22: NEESR - Development of Performance
Page 23 and 24: Wall load expression comparison wit
Page 25 and 26: Bore Impact Forces - Minami Gamou W
Page 27 and 28: FEA compared with Lidar scan (m) 0.
Page 29 and 30: Proposed ASCE 7-16 Minimum Design L
Page 31 and 32: Proposed Scope of the ASCE Tsunami
Page 37: Arigato Gosai Mas Any Questions? Ta

Tohoku Tsunami Survey

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