9. PERFORMING ORGANIZATION NAME AND ADDRESS

This document bundles five individual reports prepared during the course of a wide-ranging feasibility investigation exploring analytical methods to improve seismic fragility relationships for California bridges. The primary focus was to demonstrate that improved models could be developed for use in emergency-alerting applications such as ShakeCast. Part I is the Ph.D. thesis of Karthik Ramanathan which describes an initial end-to-end iteration through the entire model development process for a representative range of bridge classes. Parts IV and V provide post-thesis revisions and supplemental discussion by the PI’s of key research findings. Part II presents parallel work by Jazalyn Dukes toward the secondary goal of piloting a bridge-design-support tool using comparable methods. Part III provides validation results. Although preliminary fragility models are presented in this report, they are not intended for deployment. Planne