The NGA-West2 research program, coordinated by the Pacific Earthquake Engineering Research Center (PEER), is a major effort to produce refined models for predicting ground-motion response spectra. This study presents new models for ground-motion directionality developed as part of that project. Using a database of recorded strong ground motions, empirical models have been developed for a variety of quantities related to direction-dependent spectra.
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May 9, 2013
Shahi, S.K., & Baker, J.W. (2013). NGA-West2 Models for Ground-Motion Directionality, PEER Report 2013-10. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA. https://peer.berkeley.edu/sites/default/files/webpeer-2013-10-shrey_k._shahi_and_jack_w._baker.pdf