Bonthron, L., Beck, C., Lund, A., Mahmud, F., Zhang, X., Orellana Montano, R., Dyke, S. J., Ramirez, J., Cao, Y., & Mavroeidis, G. P. (2021). Empowering the Indiana bridge inventory database toward rapid seismic vulnerability assessment (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2021/03). West Lafayette, IN: Purdue University. https://doi.org/10.5703/1288284317282
With the recent identification of the Wabash Valley Seismic Zone in addition to the New Madrid Seismic Zone, Indiana’s Department of Transportation (INDOT) has become concerned with ensuring the adequate seismic performance of their bridge network. While INDOT made an effort to reduce the seismic vulnerability of newly-constructed bridges, many less recent bridges still have the potential for vulnerability. Analyzing these bridges’ seismic vulnerability is a vital task. However, developing a detailed dynamic model for every bridge in the state using information from structural drawings is rather tedious and time-consuming. In this study, we develop a simplified dynamic assessment procedure using readily-available information from INDOT’s Bridge Asset Management Program (BIAS), to rapidly identify vulnerable bridges throughout the state. Eight additional data items are recommended to be added into BIAS to support the procedure. The procedure is applied in the Excel file to create a tool, which is able to automatically implement the simplified bridge seismic analysis procedure. The simplified dynamic assessment procedure and the Excel tool enable INDOT to perform seismic vulnerability assessment and identify bridges more frequently. INDOT can prioritize these bridges for seismic retrofits and efficiently ensure the adequate seismic performance of their assets.
seismic vulnerability, asset management, prioritization, screening, rapid vulnerability analysis, Indiana seismic assessment tool, seismic retrofit
Joint Transportation Research Program
Indiana Department of Transportation
West Lafayette, IN
Date of this Version