Software

Strata 
Developed by Albert Kottke and Ellen Rathje
Strata performs one-dimensional linear-elastic and equivalent-linear (SHAKE-type) site response analyses using time series or random vibration theory ground motions. Strata allows for stochastic variation of the site properties, including the shear-wave velocity, layer thicknesses, depth to bedrock, and shear modulus reduction and material damping curves.  Strata can be downloaded from github at Strata.

SigmaSpectra
Developed by Albert Kottke and Ellen Rathje
SigmaSpectra is a computer program that selects suites of of earthquake ground  motions from a library of ground motions such that the median of the suite matches a target response spectrum at all defined periods.  The program also scales the suite such that the standard deviation fits the target standard deviation. The program can be installed as a desktop application or run within the NEES cyberinfrastructure platform, NEEShub. SigmaSpectra can be downloaded from github at SigmaSpectra.

SLAMMER
Developed by Randall Jibson, Ellen Rathje, Matthew Jibson, and Yong-Woo Lee
SLAMMER performs a variety of sliding-block analyses to evaluate seismic slope performance.  Functionalities include both rigorous and simplified analyses of rigid sliding blocks (i.e. Newmark analysis) and flexible sliding blocks (i.e. decoupled and fully coupled approaches).  Rigorous analyses calculate displacement based on user-specified ground motions, while simplified analyses use empirical regression relationships to predict displacement based on ground motion parameters (e.g., peak ground acceleration).  The nonlinear response of the soil within the flexible sliding blocks can be taken account through the equivalent-linear approximation.  A large database of recorded ground motions from the PEER Ground Motion Database are included with the program or users can import their own ground motion for analysis.  The program can be installed as a desktop application or run within the NEES cyberinfrastructure platform, NEEShub.  Slammer can be downloaded from the USGS at SLAMMER (download).



Data


Curated Data Sets available online

Rathje, E., Deterling, O. and Martin, J.G. (2015). "Lateral Spreading Deformations from Satellite Images and Optical Image Correlation for the 2011 Christchurch Earthquake", Network for Earthquake Engineering Simulation (distributor), Dataset, DOI:10.4231/D3MW28F9X

Kamai, R., Kano, S., Conlee, C., Marinucci, A., Boulanger, R., Rathje, E., and Rix, G. (2013). “Centrifuge test SSK01 on prefabricated vertical drains for liquefaction remediation”, Network for Earthquake Engineering Simulation (database), Dataset, DOI:10.4231/D32J6839J.

Kamai, R., Howell, R.L., Conlee, C., Boulanger, R., Rathje, E., Marinucci, A., and Rix, G. (2013). “Centrifuge test RNK01 on prefabricated vertical drains for liquefaction remediation”, Network for Earthquake Engineering Simulation (database), Dataset, DOI:10.4231/D3VX0628F.

Howell, R.L., Kamai, R., Conlee, C., Rathje, E., Boulanger, R., Marinucci, A., and Rix, G. (2013). “Centrifuge test RLH01 on prefabricated vertical drains for liquefaction remediation”, Network for Earthquake Engineering Simulation (database), Dataset, DOI:10.4231/D3XS5JG5N.

Marinucci, A., Menq, F.-Y., and Rathje, E. (2013). "Prefabricated Vertical Drains Field Experiment - Untreated Test Area", Network for Earthquake Engineering Simulation (database), Dataset, DOI:10.4231/D3930NV20.

Marinucci, A., Menq, F.-Y., and Rathje, E. (2013). "Prefabricated Vertical Field Experiment - Drain-treated Test Area", Network for Earthquake Engineering Simulation (database), Dataset, DOI 10.4231/D3JM23F9G