Ground Motions for Southern Illinois

A new paper and companion report document the development of ground motions for Central North America.  These ground motions are being used in ongoing research to conduct dynamic structural analysis of bridges in Southern Illinois.

  • Kozak, D.L., Luo, J., Olson, S.M., LaFave, J.M. and Fahnestock, L.A. “Modification of ground motions for use in Central North America,” Journal of Earthquake Engineering (accepted July 26, 2017). dx.doi.org/10.1080/13632469.2017.1387190
  • Kozak, D.L., Luo, J., Olson, S.M., LaFave, J.M., Fahnestock, L.A. “Modification of ground motions for use in Central North America: Southern Illinois surface ground motions for structural analysis,” Newmark Structural Engineering Report Series, No. 48, University of Illinois at Urbana-Champaign, September 2017. http://hdl.handle.net/2142/98456

The ground motions can be downloaded from the Illinois Data Bank:

  • Kozak, Derek L.; Luo, Jie; Olson, Scott M.; LaFave, James M.; Fahnestock, Larry A. (2017): Data from Modification of ground motions for use in Central North America: Southern Illinois surface ground motions for structural analysis. University of Illinois at Urbana-Champaign. https://doi.org/10.13012/B2IDB-9696589_V1

The work described in these documents is part of the project Calibration and Refinement of Illinois’ Earthquake Resisting System Bridge Design Methodology: Phase II, which is sponsored by the Illinois Center for Transportation.

New Bridge Bearing Paper Published Online

A new paper on elastomeric bearings with side retainers has been published in the Journal of Bridge Engineering:

  • Steelman, J.S., Fahnestock, L.A., Hajjar, J.F. and LaFave, J.M. “Cyclic Experimental Behavior of Nonseismic Elastomeric Bearings with Stiffened Angle Side Retainer Fuses for Quasi-Isolated Seismic Bridge Response,” Journal of Bridge Engineering, ASCE, 23 (1), January 2018. doi.org/10.1061/(ASCE)BE.1943-5592.0001170

The work described in this paper was conducted as part of the project Calibration and Refinement of Illinois’ Earthquake Resisting System Bridge Design Methodology and was sponsored by the Illinois Center for Transportation. It accompanies three earlier papers, and together they comprehensively characterize cyclic behavior of expansion bearings that are used extensively in Illinois’ bridges:

  • Steelman, J.S., Fahnestock, L.A., Filipov, E.T., LaFave, J.M., Hajjar, J.F. and Foutch, D.A. “Shear and Friction Response of Non-Seismic Laminated Elastomeric Bridge Bearings Subject to Seismic Demands,” Journal of Bridge Engineering, ASCE, 18 (7): 612-623, (2013). dx.doi.org/doi:10.1061/(ASCE)BE.1943-5592.0000406
  • Steelman, J.S., Filipov, E.T., Fahnestock, L.A., Revell, J.R., LaFave, J.M., Hajjar, J.F. and Foutch, D.A. “Experimental Behavior of Steel Fixed Bearings and Implications for Seismic Bridge Response,” Journal of Bridge Engineering, ASCE, 19 (8) 2014. dx.doi.org/10.1061/(ASCE)BE.1943-5592.0000540
  • Steelman, J.S., Fahnestock, L.A., Hajjar, J.F. and LaFave, J.M. “Performance of Non-Seismic PTFE Sliding Bearings when Subjected to Seismic Demands,” Journal of Bridge Engineering, ASCE, 21 (1) 2016, 04015028. dx.doi.org/10.1061/(ASCE)BE.1943-5592.0000777