Download

Download Full Text (1.8 MB)

Instructor/Advisor

Dr. James Kaklamanos

Keywords

Geotechnical Engineering, Earthquake Ground Motion Models, Seismic Site Development

Abstract

The goal behind this research is to compile and analyze depth-to-bedrock and shear-wave velocity data to better inform models used for quantifying earthquake ground motions and seismic hazards in the Central and Eastern United States (CEUS). By employing the use of multiple databases, existing literature and data from infrastructure projects from throughout the CEUS were found. After compiling data for several cities in the CEUS, this project focused on site characterization in New York City, which is in a region of moderate seismic hazard. In New York City, there exists a recently developed depth-to-bedrock model, but shear-wave velocity had to be compiled in order to finalize the model to be used in site response calculation. Ultimately, the finalized model to be used in site response calculations for New York City most closely resembled and was comprised of three separate models, a New York City (NYC)-specific power law model using measured velocity profiles for depths ranging from 0 to 60 meters, a linear gradient transition between the NYC-specific power law model and the Gann-Phillips et al. (2024) Quaternary Pleistocene (QP) model for depths ranging from 60 to 72 meters, and an appended version of the Gann-Phillips et al. (2024) Quaternary Pleistocene (QP) model for depths ranging from 72 meters to bedrock. This work will help improve our understanding of earthquake ground motions in these cities, working toward improving their resilience to future earthquakes.

Geotechnical Data Compilation for Site Response in the Central and Eastern United States and Seismic Velocity Model Development for New York City

Share

COinS