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3 results on '"Bruce L. Kutter"'

1. NHERI Centrifuge Facility: Large-Scale Centrifuge Modeling in Geotechnical Research

Author

Ross W. Boulanger, Daniel W. Wilson, Bruce L. Kutter, Jason T. DeJong, and Colleen E. Bronner

Subjects
centrifuge, physical modeling, geotechnical, inverse analyses, natural hazards, Engineering (General). Civil engineering (General), TA1-2040, City planning, HT165.5-169.9
Abstract

The 9-m and 1-m radius geotechnical centrifuges at the Natural Hazards Engineering Research Infrastructure (NHERI) facility at the University of California at Davis provide the national research community with open access to unique and versatile modeling capabilities for advancing methods to predict and improve the performance of soil and soil-structure systems affected by earthquake, wave, wind, and storm surge loadings. Large-scale centrifuge models are particularly effective for the building of basic science knowledge, the validation of advanced computational models from the component to the holistic system level, and the validation of innovative soil remediation strategies. The capabilities and unique role of large-scale centrifuge modeling are illustrated using three example research projects from the shared-use NHERI facility. Education impacts stemming from operations activities and coordination of activities by the center’s user base are discussed. Future directions and opportunities for research using the NHERI facilities are discussed.

Published
2020
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2. Database of rocking shallow foundation performance: Slow-cyclic and monotonic loading

Author

Weian Liu, Roberto Paolucci, Sivapalan Gajan, Manouchehr Hakhamaneshi, Ioannis Anastasopoulos, Tetsuya Kohno, Keshab Sharma, George Gazetas, Bruce L. Kutter, Lijun Deng, Giovanna Pianese, Angelos Tsatsis, and Andreas G. Gavras

Subjects
021110 strategic, defence & security studies, Superstructure, Soil–structure interaction, Seismic loading, 0211 other engineering and technologies, Testing equipment, Monotonic function, 02 engineering and technology, FoRCy, Geotechnical Engineering and Engineering Geology, Geophysics, Shallow foundation, data base, rocking shallow foundation performance, Soil structure interaction, slow-cyclic and monotonic loading, Geotechnical engineering, Geology, 021101 geological & geomatics engineering
Abstract

Many physical model tests have examined the performance of rocking foundations during cyclic and seismic loading. These tests varied in model size, testing equipment, superstructure properties, footing shape, supporting soil environment, and loading protocol. “FoRCy, Foundation Rocking database of Cyclic and Monotonic Loading” is a new database (published at https://datacenterhub.org/ ), summarizing the results of monotonic and slow-cyclic loading tests of rocking foundations. The database consists of columns identifying testing equipment and facility, soil, superstructure, and system properties, as well as loading protocol and results. The database contains 456 records (rows), each one being unique in either model configuration or loading amplitude. To illustrate its value, this article shows correlations between (1) settlement, rotation, and factor of safety with respect to bearing capacity and (2) moment and cumulative rotation for shallow footings. Data indicate that the rotation required to mobilize the moment capacity is surprisingly constant (about 0.01 radians) for a wide range of experiments.

Published
2020

3. Model Tests and Numerical Simulations of Liquefaction and Lateral Spreading : LEAP-UCD-2017

Author

Bruce L. Kutter, Majid T. Manzari, Mourad Zeghal, Bruce L. Kutter, Majid T. Manzari, and Mourad Zeghal

Subjects
Industrial safety, Reliability, Soil conservation, Soil science, Hydraulics, Quality control, Soil liquefaction--Research, Foundations, Natural disasters
Abstract

This open access book presents work collected through the Liquefaction Experiments and Analysis Projects (LEAP) in 2017. It addresses the repeatability, variability, and sensitivity of lateral spreading observed in twenty-four centrifuge model tests on mildly sloping liquefiable sand. The centrifuge tests were conducted at nine different centrifuge facilities around the world. For the first time, a sufficient number of experiments were conducted to enable assessment of variability of centrifuge test results. The experimental data provided a unique basis for assessing the capabilities of twelve different simulation platforms for numerical simulation of soil liquefaction. The results of the experiments and the numerical simulations are presented and discussed in papers submitted by the project participants. The work presented in this book was followed by LEAP-Asia that included assessment of a generalized scaling law and culminated in a workshop in Osaka, Japan in March 2019. LEAP-2020, ongoing at the time of printing, is addressing the validation of soil-structure interaction analyses of retaining walls involving a liquefiable soil. A workshop is planned at RPI, USA in 2020.

Published
2020

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