Contact Us

C o n t a c t U s

Shaking Table Modeling of Seismically Induced Deformations

Physical model experiments were performed on a 1 g shaking table with the principal goals of: (1) investigating the mechanisms of seismically induced permanent deformations in slopes, and (2) assessing the accuracy and applicability of the Newmark sliding block procedure for estimating seismically induced deformations in slopes. Each of the clayey slope models deformed in response to strong shaking,

Shaking table modeling of MSE/soil nail hybrid retaining

2019-4-1  Shaking table testing. 2.1. Configuration and preparation of models. In order to conduct the physical model tests under geometrical conditions similar to those of Phase (I), 0.8 m was selected as the total height of the hybrid wall models by considering a scale factor of 10 ( N = 10 ).

Shaking table modeling of battered pile’s behavior under

2019-11-29  In this experimental study, shaking table tests are performed on 2×2 symmetrical pile groups with different rake angles 0°, 15°, and 25°. The dynamic response of groups subjected to sinusoidal input accelerations is analyzed.

Shaking Table Model Test and Numerical Modeling for

2019-12-16  2. OVERVIEW OF SHAKING TABLE MODEL TEST 2.1. The Basic Information of the Test Model The shaking table test was carried with the 3D electro-hydraulic servo driving earthquake simulator owned by the earthquake simulating open laboratory of the Institute of Engineering Mechanics, China Earthquake Administration,

Shaking Table Modeling of Embankment Slope Response

Shaking Table Modeling of Embankment Slope Response to Earthquake Loading Lin Yu-liang School of Civil Engineering, Central South University, Changsha 410075, CHINA [email protected] Abstract

Shaking table modeling of MSE/soil nail hybrid retaining

A series of 1-g shaking table tests using variable-amplitude harmonic excitations was performed on 0.8-m-high MSE/soil nail hybrid retaining (MSE/SN)

Shaking Table Modeling of Seismically Induced Deformations

2005-5-1  Shaking Table Modeling of Seismically Induced Deformations in Slopes Physical model experiments were performed on a 1 g shaking table with the principal goals of: (1) investigating the mechanisms of seismically induced permanent deformations in slopes, and (2) assessing the accuracy and applicability of the Newmark sliding block procedure for estimating seismically induced

Shaking Table Tests on a Physical Model of a Concrete

2016-9-9  Shaking Table Tests on a Physical Model of a Concrete Gravity Dam Atheer Zaki Mohsin,Hassan Ali Omran,Abdul-Hassan K. Al -Shukur . Abstract— This research is devoted to experimental investigations on response of a concrete gravity dam to seismic excitations including dam-reservoir-foundation interaction.

Lineardynamicmodelingofauni-axialservo

2002-6-4  ANALYTICAL MODELLING OF SHAKING TABLE SYSTEM This section presents the development,from basic principles, of a linear analyticalmodel able to capture the salient dynamic characteristics of a servo-hydraulic, stroke-controlled, uni-axial shaking table system.

Shaking Table System for Geotechnical Centrifuge

2020-10-13  behavior is to conduct shaking table tests under a centrifugal field using a model specified from the actual structure in accordance with the similarity law, so as to allow economic evaluation of alternative designs, investigation of complex problem areas, and validation of numerical methods with instrumented physical models. F. IGURE . 1 S

Frontiers Equivalent-Frame Modeling of Two Shaking Table

2020-4-16  Equivalent-Frame Modeling of Two Shaking Table Tests of Masonry Buildings Accounting for Their Out-Of-Plane Response Francesco Vanin 1,Andrea Penna 2 and Katrin Beyer 1 * 1 Earthquake Engineering and Structural Dynamics Laboratory (EESD), School of Architecture, Civil and Environmental Engineering (ENAC), École Polytechnique Fédérale de

Shaking Table Model Test and Numerical Modeling for

2019-12-16  Shaking Table Model Test and Numerical Modeling The Open Civil Engineering Journal, 2015, Volume 9 791 Table 2. Physical-mechanical parameters of model slope. Mat. Spec. W /(kN·m 3) Elastic Mod/MPa Poisson Ratio Cohesion /kPa Internal Fiction Angle/(°) Tensile /kPa Surrounding 21.0 40 0.36 40 27 10.5 Faults 19.5 10 0.38 2 26 2

Shaking Table Modeling of Seismically Induced Deformations

2005-5-1  Shaking Table Modeling of Seismically Induced Deformations in Slopes. Physical model experiments were performed on a 1 g shaking table with the principal goals of: (1) investigating the mechanisms of seismically induced permanent deformations in slopes, and (2) assessing the accuracy and applicability of the Newmark sliding block procedure for estimating seismically induced deformations in slopes.

Dynamic Modeling of Shaking Table Based on Simulink

This essay focuses on a new type 2-DOF shaking table, which is driven by four hydraulic cylinders. Taking 2-DOF shaking table for example, in order to conveniently and rapidly achieve the control system simulation,using Simulink for simulation platform and combining with SimMechanics. Build dynamic modeling in SimMechanics and use Simulink to build servo system.

Shaking Table Tests on a Physical Model of a Concrete

2016-9-9  The experiments are conducted at the Physical Modeling Laboratory of School of Civil Engineering, University of Tehran. A parametric study is achieved through change of relative density (Dr) of ground soil. Two tests, namely, Test-1 and Test -2 are conducted on shaking table device on Dr=80% and 60 %, respectively. Also 3-phases of

Modeling and vibration decoupling control of multi-axial

Simulation experiments are carried out, and the results indicate that the MIMO vibration decoupling control strategy successfully minimizes the coupling and improve the waveform replication precision of the shaking table.

Shaking table model test on Shanghai World Financial

2006-9-12  Xilin Lu, Linzhi Chen, Ying Zhou, Zhihua Huang, Shaking table model tests on a complex high‐rise building with two towers of different height connected by trusses, The Structural Design of Tall and Special Buildings, 10.1002/tal.460, 18, 7, (765-788), (2008).

Shaking Table System for Geotechnical Centrifuge

2020-10-13  The shaking table system for geotechnical centrifuge, which can simulate sinusoidal and real seismic waves under a centrifugal force of 50 times earth gravity, is capable of Geotechnical centrifuge modeling is a highly specialized laboratory based technique. As such, it suffers

SHAKING TABLE COLLAPSE TESTS OF TWO SCALE

2009-8-7  Collapse, deterioration modeling, shaking table test, scale model, P-Delta effect, collapse mechanism 1. INTRODUCTION Till recently, there was no comprehensive physical experiment on steel structures that could be used to validate that prediction of sidesway collapse is indeed feasible. For this reason, two scale models of a 4-story prototype

Lineardynamicmodelingofauni-axialservo

2002-6-4  tion. The presence of a test structure on the shaking table modi"es the expression for S(s), H(s), and B(s), thus giving a modi"ed expression for the shaking table transfer function „(s). 2.1. Three-stage servovalve transfer function, H 5 (s) The functioning of a three-stage servovalve characterized by an &inner feedback control loop’ is

Shaking Table Model Test and Numerical Modeling for

2019-12-16  Shaking Table Model Test and Numerical Modeling The Open Civil Engineering Journal, 2015, Volume 9 791 Table 2. Physical-mechanical parameters of model slope. Mat. Spec. W /(kN·m 3) Elastic Mod/MPa Poisson Ratio Cohesion /kPa Internal Fiction Angle/(°) Tensile /kPa Surrounding 21.0 40 0.36 40 27 10.5 Faults 19.5 10 0.38 2 26 2

Shaking Table Tests on a Physical Model of a Concrete

2016-9-9  The experiments are conducted at the Physical Modeling Laboratory of School of Civil Engineering, University of Tehran. A parametric study is achieved through change of relative density (Dr) of ground soil. Two tests, namely, Test-1 and Test -2 are conducted on shaking table device on Dr=80% and 60 %, respectively. Also 3-phases of

Shaking table model test on Shanghai World Financial

2006-9-12  Xilin Lu, Linzhi Chen, Ying Zhou, Zhihua Huang, Shaking table model tests on a complex high‐rise building with two towers of different height connected by trusses, The Structural Design of Tall and Special Buildings, 10.1002/tal.460, 18, 7, (765-788), (2008).

A detailed dynamic model of a six-axis shaking table — the

AB This article describes the modeling of a 5 m x 5 m 6 degree-of-freedom (DOF) shaking table and the subsequent computer simulation of the system's dynamic characteristics. The simulation model is required to aid the development of a closed-loop controller with a bandwidth specified up to 120 Hz, and thus high order dynamics including valve

Analytical modeling of a shaking table system CORE

Abstract. A complete mathematical model of the Rice University shaking table facility is developed. The analytical model, developed on the basis of previous work, is then fully developed in order to account for: Proportional, Integral, Derivative, Feed-Forward and delta-Pressure controls, for servovalve response delay, for flexibility of the foundation, for flexible MDOF test specimen.

(PDF) Shaking table scale model tests of nonlinear soil

Shaking Table Scale Model Tests of Nonlinear Soil-Pile-Superstructure Interaction In Soft Clay by Philip James Meymand B.A. (Georgetown University) 1984 B.S. (University of Massachusetts, Lowell) 1993 M.S. (University of California, Berkeley) 1994 A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Engineering-Civil Engineering in the

SHAKING TABLE COLLAPSE TESTS OF TWO SCALE

2009-8-7  Collapse, deterioration modeling, shaking table test, scale model, P-Delta effect, collapse mechanism 1. INTRODUCTION Till recently, there was no comprehensive physical experiment on steel structures that could be used to validate that prediction of sidesway collapse is indeed feasible. For this reason, two scale models of a 4-story prototype

Some Important Aspects of Physical Modelling of

2008-7-8  Abstract. Physical modeling of liquefaction in 1-g shaking table and dynamic centrifuge test become very popular to simulate the ground behavior during earthquake motion. 1-g shaking table tests require scaled down model ground which can be prepared in three methods; water sedimentation, moist tamping and dry deposition method.

OFFLINE TUNING OF SHAKING TABLES

2004-7-13  The shaking table system is mechanically “clean” with low friction, unconstrained actuators and high performance capabilities, thus providing an ideal system for numerically modeling the shake table and servo-hydraulic system. RESONANT SPECIMEN Most specimens tested using a shake table system have resonant force feedback and damping. The

SHAKING TABLE -STRUCTURE INTERACTION NIST

2009-12-3  table loaded with 68 kips single degree offreedom structure with a height of 219 inches. The shaking table has 5 degrees offreedom, one horizontal, one vertical and 3 rotational degrees of freedom. When loaded with heavy and tall structures, the shaking table undergoes pitching (rocking) motion even in the absence of a pitch command signal.