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Seismology and Earthquake Engineering Page

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Earthquake Engineering Tutorials

An Introduction to Earthquakes: quakes.pdf
Seismic Response Spectra: seis_rs.pdf

The Pseudo Velocity Shock Response Spectrum: pseudo_velox.pdf
Newmark-Hall Method for Design Response Spectra: NewmarkHall.pdf
U.S. Army, Response Spectra and Seismic Analysis for Concrete Hydraulic Structures: r_spectra.pdf

Building Response to Seismic Excitation: bseismic.pdf

An Implementation of the ANSI Standard C37.98. The Swedish National Testing and Research Institute. AnsiC37.98.pdf

Building Vibration Standards: building.pdf
Caltrans Seismic Design Criteria v1.2: caltrans.pdf
Caltrans Transportation Related Earthborne Vibration: caltrans_earth.pdf
DOE-STD-1020-94. Contains chapter on earthquake design and evaluation criteria: std1020.pdf
United Facilities Criteria (UFC) Structural Load Data, US Department of Defense: ufc_3_310_01.pdf
Recommendations for Revision of Seismic Damping Values in Regulatory Guide 1.61: seismic_damping.pdf
See als o: Shock & Shock Response Spectrum

Seismic Synthesis for Shaker Testing and Modal Transient FEA

Shaker Table Seismic Testing of Equipment using Historical Strong Motion Data Scaled to Satisfy a Shock Response Spectrum
quake_syn.pdf
An Alternative Method of Specifying Shock Test Criteria: NASA_TM_08_215253.pd
Matlab Scripts:
waveform_reconstruct.m
wavelet_scale_SRS_add.m
werror2.m
wqsrs.m
progressbar.m
th_from_wavelet_table.m
Wavelet Tables:
el_NS_wavelet_table.out
wavelet_40.txt
Time History:
accel_40.txt

Seismology Tutorials
Seismic Phase List: seismic_phase.pdf
J. Havskov, Instrumentation in Earthquake Seismology instrument.pdf
Earthquake Case Histories
USGS - Loma Prieta Earthquake: USGS-LP.pdf

Hector Mine Earthquake Seismogram: hector.pdf

Professor Otani, Disaster Mitigation Engineering - The Kobe Earthquake Disaster: Kobe_disaster.pdf
Buildings & Bridges
Transamerica Pyramid Design: pyramid.pdf
Golden Gate Bridge: golden.pdf
Earthquake Data
El Centro 1940 Earthquake, Time History Data File, North-South Component: elcentro.dat
This file has two colums: time(sec) & Acceleration (G).
See also : El Centro Earthquake

 Software

  
Fundamental Frequency of a Tall Building
 building.exe
Richter magnitude of a local earthquake (ML)
 ML.exe
Shock response spectrum of base acceleration time history
quakeSRS.exe
quakeSRS.cpp
 Elastic Design Spectra
edspectrum.exe
edspectrum.cpp
Description
Executable
Source Code
Synthesis of a time history to satisfy a shock response spectrum specification. The time history consists of damped sinusoids. This program is intended mainly for modal transient analysis.
(formerly known as srs_syn.cpp)
 damped_sine_syn.exe
 damped_sine_syn.cpp
Generate time history from wavelet table.
 th_wavelet.exe
 th_wavelet.cpp
Synthesis of a time history to satisfy a shock response spectrum specification using wavelets. This program is particularly useful for shaker shock testing.
(formerly known as jsynth.cpp)
 wavelet_synth.exe
jsynth_user_manual.pdf
wavelet_synth.cpp
Synthesis of a time history to satisfy a shock response spectrum using wavelets with random time delays. This program could be used either for shaker shock or for a modal transient analysis.
seismic_synth.exe
seismic_synth.cpp
Synthesis of a time history to satisfy a shock response spectrum specification using wavelets including a specified ZPA.
 jsynth_ZPA.exe
jsynth_ZPA.cpp
 Newsletters with Earthquake Articles
Issue
Feature Articles
June_2009
north_korea_seismic.txt
wind_turbine_1.mp3
wind_turbine_2.mp3
North Korean Nuclear Test
Wind Turbine Noise
January 2007
shofar1.mp3
shofar2.mp3
shofar3.mp3
Electrophonic Sound
Shofar Acoustics
Seiches in Pools and Lakes Caused by Earthquakes    
June 2006
SOFAR Channel 
Seismo-acoustic T-waves
Ice Quakes 

January_2005 
Tsunami Video 1
Tsunami Video 2
 Northern Sumatra Earthquake and Tsunami
December_2004
EKG Waves
Taiwan Earthquake
November 2004 
Data File:
Solomon_Time_History.zip
Homebuilt Lehman Seismometer
Solomon Island Earthquake
 March 2002
1. Moonquakes
2. Suspension Footbridge Resonance Induced by Marching
 February 2002 
1. Niigata Earthquake 1964: Soil Liquefaction
2. The Bay of Fundy Resonance
3. Lake Geneva Seiche
4. The Earth’s Natural Frequency
  January 2002 
1. The Citicorp Building Tuned Mass Damper
2. Seismic Response of the Olive View Hospital
 November 2001 
1. Seismic Waveform Review
2. The World Trade Center Disaster: A Shock & Vibration Perspective
3. "Good Vibrations" May Prevent Bone Loss in Space
 
 August 2001
1. Sunquakes
2. David O. Smallwood, Improved Recursive Formula for Calculating Shock Response Spectra

Recommended Books
Videos

Seismic Hammer Truck

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