Abstract
Correct evaluation of shear modulus and damping characteristics in soils under dynamic loading is one of the most important topics in geotechnical engineering. Shaking tables are used for physical modelling in earthquake geotechnical engineering and is key to the fundamental understanding and practical application of soil behaviour. The shaking table test is realistic and clear when the response of geotechnical problems such as liquefaction, post-earthquake settlement, foundation response and soil-structure interaction and lateral earth pressure problems, during an earthquake is discussed. This paper describes various components of the uniaxial shaking table at university of Guilan, Iran. Also, the construction of the laminar shear box is described. A laminar shear box is a flexible container that can be placed on a shaking table to simulate vertical shear-wave propagation during earthquakes through a soil layer of finite thickness. Typical model tests on sandy soil conducted on the shaking table and the results obtained are also presented. Appropriate evaluation of shear modulus and damping characteristics of soils subjected to dynamic loading is key to accurate seismic response analysis and soil modelling programs. The estimated modulus reduction and damping ratio were compared to with Seed and Idriss’s benchmark curves.
Highlights
IntroductionEarthquakes all over the world have become major concern for the engineers
Natural hazards like earthquakes date from many centuries
There are various model tests in earthquake geotechnical engineering, this paper focus on shake table tests
Summary
Earthquakes all over the world have become major concern for the engineers. Several full scale and reduced scale physical and numerical models are developed and are being developed to study various problems related to geotechnical engineering. To minimize the damage due to earthquake on various structures, performance assessment of these structures under seismic loading is required. The seismic behavior of level or inclined liquefiable and soft clay grounds and soil-structure systems such as pile and shallow foundations, embankments, dams and retaining walls has been studied by the physical model tests. Kramer [2] stated that the performance of a prototype model or the effects of different parameters on geotechnical problems can be studied by model tests. Different model studies available in geotechnical engineering are: tilt table test, centrifuge test (high-g tests), hydraulic gradient tests and shaking table tests (l-g tests)
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call