Similitude for Shaking Table Tests on Soil-Structure-Fluid Model in 1g Gravitational Field

Two geotechnical centrifuge model tests of a soil-structure system with different burial depths are performed to investigate the interaction between soil and structure. The tests are performed at 50 gravitational centrifuge accelerations and the input motion is Kobe wave. This paper focuses on the accelerations and displacements in the soil-structures system. The peak accelerations and displacements along the axis of the structure and along the vertical line 17cm away from the axis are presented. The acceleration and displacement response due to the interaction between soil and structure are studied.

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Earthquake induced floor accelerations on a high-rise building: Scale model tests on a shaking table

IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure ◽

10.2749/christchurch.2021.1312 ◽

2021 ◽

Author(s):

Fabio Rizzo ◽

Alessandro Pagliaroli ◽

Giuseppe Maddaloni ◽

Antonio Occhiuzzi ◽

Andrea Prota

Keyword(s):

Soil Structure ◽

Shaking Table ◽

Soil Structure Interaction ◽

Scale Model ◽

Structural Elements ◽

Shaking Table Tests ◽

Building Model ◽

High Rise ◽

High Rise Building ◽

Story Building

<p>The paper discusses results of shaking table tests on an in-scale high-rise building model. The purpose was to calibrate a dynamic numerical model for multi-hazard analyses to investigate the effects of floor acceleration. Accelerations, because of vibration of non-structural elements, affect both the comfort and safety of people. The research investigates the acceleration effects of both seismic and wind forces on an aeroelastic in-scale model of a multi-story building. The paper discusses the first phase of experiments and gives results of floor accelerations induced by several different base seismic impulses. Structural analyses were first performed on the full-scale prototype to take soil-structure interaction into account. Subsequently the scale model was designed through aeroelastic scale laws. Shaking table experiments were then carried out under different base accelerations. The response of the model and, in particular, amplification of effects from base to top are discussed.</p>

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Computer Simulation of the Shaking Table Tests on Harder Soil-Structure Interaction System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.261-263.1619 ◽

2011 ◽

Vol 261-263 ◽

pp. 1619-1624

Author(s):

Pei Zhen Li ◽

Jing Meng ◽

Peng Zhao ◽

Xi Lin Lu

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Soil Structure ◽

Shaking Table Test ◽

Shaking Table ◽

Soil Structure Interaction ◽

Shaking Table Tests ◽

Site Condition ◽

Element Analysis ◽

Structure Interaction

Shaking table test on soil-structure interaction system in harder site condition is presented briefly in this paper. Three-dimensional finite element analysis on shaking table test is carried out using ANSYS program. The surface-to-surface contact element is taken into consideration for the nonlinearity of the state of the interface of the soil-pile and an equivalent linear model is used for soil behavior. By comparing the results of the finite element analysis with the data from shaking table tests, the computational model is validated. Based on the calculation results, the paper gives the seismic responses under the consideration of soil-structure interaction in harder site condition, including acceleration response, contact analysis on soil pile interface and so on.

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