Nheri-Ef@Utexas Experimental Facility: Large-Scale Mobile Shakers for Natural Hazard Field Studies To Develop Resilient and Sustainable Infrastructure

Abstract eng:
The vision of the Natural Hazards Engineering Research Infrastructure (NHERI) Program supported by the U.S. National Science Foundation (NSF) is to "transform how future civil infrastructure will be designed and how existing civil infrastructure might be rehabilitated" by enabling "research and education that can contribute knowledge and innovation for civil infrastructure, over its lifespan, to be multi-hazard, resilient and sustainable". The NSF-funded NHERI@UTexas is contributing unique, large-scale, hydraulically-controllable mobile shakers and associated instrumentation to study and develop novel, in-situ testing methods that can be used to both evaluate the needs of existing infrastructure and optimize the design of future infrastructure. The ability to test existing infrastructure under actual field conditions bridges the gap in the transformative tools needed for the next frontier of resilient and sustainable natural hazards research. Three key areas of investigation that NHERI@UTexas is targeting are: (1) performing deeper, more accurate, and higher resolution 2D/3D subsurface geotechnical imaging, (2) characterizing the nonlinear dynamic response and liquefaction resistance of complex geomaterials in situ, and (3) developing rapid, in-situ methods for nondestructive structural evaluation and soil-foundationstructure interaction (SFSI) studies. On-going, new, and future projects in these areas are discussed.

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