Welcome!
Course info handout (syllabus, prerequisites, books)
Class schedule:
T-Th 12:30-2:00 @ CIVL2118
F 2:30-5:20 @ CIVL1252 (optional workshop)
Sister/brother course-website for EAS591G/CE597M maintained by Prof. Arvid Johnson
2003 Bingol Earthquake (Jan 9-Feb 2)
Handouts and Hyperlinks
Geotech & Engineering Geology (by Johnson and A. Bobet)
Ground motion study (by Akkar, Boore, and Gulkan)
Hassan index (by Hassan and Sozen)
SDOF write-up (by Heaton)
On 2003 Bingol earthquake (by Johnson)
Presentations
Bingol geology and earthquake info (AJ on Jan 12)
Bingol earthquake info (AI on Jan 17)
Bingol building survey: residential and commercial R/C bldgs (AI on Jan 17)
Bingol building survey: school and dormitory bldgs (AI on Jan 19)
Fundamentals of dynamic response of SDOF systems (AI on Jan 24)
Forced vibration, numerical methods, response spectra (AI on Jan 26)
Average acceleration numerical integration (linear/nonlinear springs)(AI on Jan 31)
Spectral amplication (AI on Feb 2)
MDOF system vibration, first-order look at Bingol building response (AI on Feb 2)
Reading Fractures (Feb 7- )
Handouts and Hyperlinks
Pages from Theory of Elasticity (by Timoshenko & Goodier) (Feb 7)
The displacement fields of inclined faults (by Mansinha & Smylie) (Feb 7)
Ground lurching at Kaynasli during 1999 Duzce earthquake [bonus paper for website visitors]
Internal deformation due to shear and tensile faults in a half-space (by Okada) [bonus paper for website visitors]
Surface deformation due to shear and tensile faults in a half-space (by Okada) [bonus paper for website visitors]
The deformation of the ground around surface fault (by Chinnery) (Feb 14)
Owen's handout on the infinite half-space with fault program (Feb 14)
SeGaLiFaRF (3D faults software coded by Arvid Johnson)
Discussion of the derivation of 2D dislocation solutions (by Arvid Johnson)
UPDATED: 2D-fault Matlab program by Owen Huang -- as demonstrated on 2/17 workshop (zipped directory; please report if you find any bugs -- see the update)
UPDATED: Updated version of the 2D-fault Matlab program by Owen Huang. Options: 1) type main or main(1) to see final strain figures; 2) type main(2) to see permanent strain figures; 3) type main(3) to see elastic strain figures. See the Graphical User Interface Owen has developed for the 2D-fault program.
Matlab routines from Kaj Johnson and a revised version of them [UPDATED] (zipped directories)
Presentations
Reading fractures: Part 1, Part 2, and Part 3 (AJ on Feb 7, 9, and 14)
Deformation belts, fault zones (AJ on Feb 14 and 16)
Analysis of Deformation Belt at Kaynasli with Dislocation Theory (AJ on Feb 21)
Kinematics of Fracture Belts at Landers (AJ on Feb 21)
Bolu Viaduct -- Second Biggest Strain Gage on Earth (AI on Feb 23)
Kinematics of Fracture Belts at Landers (part II) (AJ on March 3)
Reading Fractures (part II) (AJ on March 3)
Reading Fractures (part III) (AJ on March 7 and 9)
Waves (April 4-)
Handouts and Hyperlinks
Evidence for and Implications of Self-Healing Pulses of Slip in Earthquake Rupture (by Heaton)
Earthquake Ground Motions (by Heaton and Hartzell)
Near-field Ground Motion from the Landers Earthquake (by Chen)
Processing of Near-field Earthquake Accelerograms (by Wang) and a Collection of Processed Near-field Earthquake Accelerograms with Response and Drift Spectra (by Wang, Gu, and Iwan)
Overturning of Rocking Blocks (by Fierro and Perry)
Near-Source Ground Motion and its Effects on Flexible Buildings (by Hall, Heaton, Halling, Wald)
Measuring Earthquake Intensity in Pounds Per Square Foot (by Westergaard)
Earthquake-Shock Transmission in Tall Buildings (by Westergaard)
Presentations
Review of Wave Phenomena (AI on April 4)
Effect of Tilting of the Base of Motion Recorder (AI on April 13)
Building Models and Wave Travel in Buildings (AI on April 13)
#01: Please write a two-page summary of your "observations" about the 2003 Bingol earthquake. You may write conclusions you have drawn from the presentations in class, but the primary purpose is to summarize your "observations".
#02 (due the week of 12 Feb): Please prepare a summary report for the 2003 Bingol earthquake. It should include:
summary of your "observations" regarding the geophysical, geotechnical, and structural aspects;
the ground motion data (acceleration, try integrating to get velocity & displacements, as well);
response spectra obtained from the data (acc, vel, disp for period ranges upto 4 seconds and damping ratios of 0%, 2%, 5%, 10% of critical damping)
you may generate them using a readily available software but verify a selection of the points with a computer routine you have written (using Newmark-beta, ave. constant acceleration, or any other method of your choice);
try removing the peak PGA (lower the amplitude of that impulse to the next peak acceleration value of the record) and look at the spectra -- how do the original and this "reduced peak" spectra compare?
your conclusions about the response of buildings (try to include a Hassan-index based study of the building survey data)
Resources for Assignment #2:
NSF-Tubitak report on Bingol [Bingol Report is linked to from the main page; website includes files for the surveyed buildings.]
IMPORTANT: Please limit the influence of this report on your conclusions to minimum; do not paraphrase; we want to hear your own ideas and opinions.
#03 and #04: Assignment statements
#05: Find the strains at the base of the steel transmission tower using the complete quadrilateral coordinates given in p.35 of the Kinematics of Fracture Belts at Landers presentation. The Excel file mentioned in the text is available on Prof. Johnson's website.
E-Defense (World's largest shake-table) and the 6-story reinforced concrete structure test
BiSpec (software for linear-nonlinear response of SDOF systems)
Engineering Seismology (by P.C. Jennings) for FAIR USE only
Seismo-surfing the Internet (pleasant hunts for strong-motion and other data Worldwide!)
Engineering Geologic Mapping at Purdue
Matlab Tutorials:
A Concise History of Mainstream Seismology (by Ben-Menahem)
maintained by Ayhan Irfanoglu (ayhan@purdue.edu)