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Tsunami design lecture 1

1. CEE 696: Tsunami Loads & Design
L1: Introduction
Mohammad S. Alam, Ph.D.
Assistant Professor
Civil, Environmental, and Construction Engineering

2. About Myself
Undergradu
ate
MSc.
Research
Assistant
Professor
PhD.
Research
Postdoc
1999 2006 2008 2013 2019
Lecturer
2004
USABangladesh
France
& Italy
Bangladesh
2024
Assistant
Professor

3. What do I study?
Natural disasters (e.g. earthquake, tsunami, hurricanes) impacts on communities and
individual infrastructures and how to make structures more resilient to natural hazards.Point-1Point-2Point-3
Building location
0
1
2
3
M
AR
of exceedance
collapse 10
-5
Four story
Eight story beam
A
col
A
+ Assessment Metadata
Name of Investigator
Date
General Notes
Assessment Type
All Photos
Audio
Attribute Notes
Address
Occupancy
Number of Stories
Understory (% Footprint)
First Floor Elevation (ft)
Year Built
Roof Shape
Roof Slope
Orientation
Structural Notes
Structural System
Foundation Type
Wall Anchorage
Wall Substrate
Wall Cladding
Soffit Type
Wind Damage Details
Roof Structure Dmg (%)
Roof Substrate Dmg (%)
Roof Cover Dmg (%)
Wall Structure Dmg (%)
Wall Substrate Dmg (%)
Wall Cladding Dmg (%)
Damaged Fenestration (%)
Location Dmg Fenestration
Large Door Failure
Soffit Damage (%)
Fascia Damage (%)
Stories w/ Damage
Media / Imagery
Record Metadata
Project
Lat/Lon
Created Time
Created By
Building Attributes Structural Details
Walls and Foundation
Fenestration Protection
Fenest. Protection Type
Large Door Present?
Large Door Location
Large Door Type
Fenestration
Roof Substrate
Roof Cover
Secondary Water Barrier
Overhang Length
Parapet Height (inches)
Roof
Roof System Type
R2W Attachment
Damage Details
Overall Damage Notes
Hazards Present
Wind Damage Rating
Surge Damage Rating
Rainwater Ingress Rating
Damage Indicator
Degree of Damage
Overall Damage
Water-Induced Dmg Notes
% Footprint Eroded
% Dmg Understory
Max Scour Depth
% Piles Missing/Collapsed
% Piles Leaning/Broken
Cause of Found. Dmg.
Surge Damage Details
Wind Damage Details
Automatically filled in by app
Required for FAST
FAST on-site priorities
VAST/Data Librarians
App Selection
Survey Category
Hazard Category
Performance Assessment
Category
Facility Category

4. CEE 696: Tsunami Loads & Design
Lecture: MW 4.30-5:45 pm, Holmes 287
Office hours: Th 2.30-4.30 pm
Course Objectives: By the end of this course we will learn:
❑Tsunami impacts on built-environment
❑Tsunami hazard analysis
❑Tsunami load and effects on buildings and design to withstand those effects as per ASCE 7.
Textbook & other references

5. CEE 696: Tsunami Loads & Design
Grading Policy:
Grading Website: Downloadable course material will be available on Laulima.
Software: ETABS/ SAP2000 / MATLAB / EXCEL/ Python.
Student Conduct Expectations: Compliance with the student code of conduct
(https://manoa.hawaii.edu/studentsuccess/conduct-code/) is expected.
Statement Regarding Students with Disability: Accommodations for students with disabilities are
determined and approved by KOKUA program (https://www.hawaii.edu/kokua/). If you, as a student,
believe you are eligible for accommodations but have not obtained approval please contact KOKUA
immediately at 808-956-7511/ 808-956-7612 or through email: [email protected].

6. CEE 696: Tsunami Loads & Design

7. Tsunami Generation Mechanism
Subduction zone Tsunamigenic large
magnitude earthquakes
Indian Ocean: M9.3 – Dec. 26, 2004
East Japan: M9.1 – March. 11, 2011
Chile: M8.8 – Feb. 27, 2010

8. Tsunami Generation Mechanism
Fritz, H. M., Mohammed, F., & Yoo, J. (2009). Lituya Bay landslide impact generated mega-tsunami 50 th Anniversary.Tsunami Science four
years after the 2004 Indian ocean tsunami: Part II: Observation and data analysis, 153-175.
Landslide-induced Tsunami (e.g. 1958 Lituya Bay Tsunami, Alaska)

9. Tsunami Generation Mechanism
Submarine landslide (e.g., 2018 Palu Earthquake and Tsunami)
Robertson, I., M. Head, D. Roueche, H. Wibowo, T. Kijewski-Correa, K. Mosalam, and D. Prevatt. "STEER–Sunda Strait Tsunami (Indonesia):
Preliminary Virtual Assessment Team (P-VAT) Report."DesignSafe-CI [publisher], Dataset. doi10 (2018).

10. Alam, M., I. Robertson, K. Mosalam, S. Gunay, T. Kijewski-Correa, D. Prevatt, D. Roueche(2022). "Tonga Tsunami Event Briefing", inStEER
- 14-15 January 2022 Tonga Volcanic Eruption and Tsunami. DesignSafe-CI.https://doi.org/10.17603/ds2-8b5b-jx16
Tsunami Generation Mechanism
Meteotsunami (e.g., 2022
Tonga volcanic eruption &
tsunami)

11. Wave Definition

12. Tsunami Terminology
ASCE 7-16 (Chapter 6)
ASCE (2016). “Minimum design loads for buildings and other structures.” ASCE/SEI 7-16, Reston, VA.

13. Tsunami Wave Characteristics
Yeh, H., Barbosa, A., Mason, B.H. (2015). Tsunamis Effects in Man-Made Environment. In: Tilling, R.I. (eds) Complexity in Tsunamis,
Volcanoes, and their Hazards. Encyclopedia of Complexity and Systems Science Series. Springer, New York, NY.

14. Major Natural Hazards in Hawaii
❑ Volcanic Eruption
❑ Earthquakes
❑ Tsunamis
❑ Floods
❑ Hurricanes
❑ Sea Level Rise
Per Hawaiian Emergency Management Agency

15. Major Natural Hazards in Hawaii
2018 Hurricane Lane affecting Maui and Hawaii
county
2024 Central Pacific Hurricane
(https://www.nhc.noaa.gov)

16. Reference
Fritz, H. M., Mohammed, F., & Yoo, J. (2009). Lituya Bay landslide impact generated mega-tsunami 50th Anniversary.Tsunami
Science four years after the 2004 Indian Ocean Tsunami: Part II: Observation and Data Analysis, 153-175.
ASCE (2016). “Minimum design loads for buildings and other structures.” ASCE/SEI 7-16, Reston, VA.