Theoretical Study on Similarity Relation of Small Scale Subgrade Shaking Table Test Model

2011 ◽  
Vol 255-260 ◽  
pp. 3354-3360 ◽  
Author(s):  
Jin Bei Li ◽  
Hong Ru Zhang ◽  
Zhi Qiang Li
Keyword(s):  
Theoretical Calculation ◽  
Calculation Result ◽  
Shaking Table Test ◽  
Similarity Theory ◽  
Practical Method ◽  
Shaking Table ◽  
Similarity Relation ◽  
Experimental Result ◽  
Small Scale ◽  
Test Model

Shaking table test is an important method to study seismic performance of geotechnical structures. Processing the similarity relation and deducing the response of original mold correctly are very important. Based on similarity theory, the paper adopts a dimensional analysis method to solve almost all similar constants, and provides a practical method on designing subgrade model of shaking table test. During the model designing process, several basic similar constants are defined at first and other main similar constants are obtained according to the basic similar constants. This method is applied in practical earthquake simulated shaking table test. Partial results are compared with the theoretical calculation result. The experimental result which is in concordance to the theoretical calculation result can reflect the seismic response rules of subgrade correctly. So the practical designing method is feasible.

Shaking Table Test of Isolated Structure Model with Small Scale

2011 ◽  
Vol 250-253 ◽  
pp. 2036-2039
Author(s):  
Wei Qing Fu ◽  
Fei Chen ◽  
Lin Ding
Keyword(s):  
Shaking Table Test ◽  
Shaking Table ◽  
Experimental Result ◽  
Small Scale ◽  
Dynamical Characteristic ◽  
Structure Model ◽  
Actual Structure ◽  
Vibration Effect ◽  
High Rise ◽  
Scale Down

For analyzing reduction vibration effect of high-rise isolated structure with LRB, experimental research on shaking table of isolated structure model on a scale down of 1:16 in two-direction earthquake wave input was conducted. Ratio similitude design of model and earthquake wave input was unified for reflection dynamical characteristic of actual structure in the test. Earthquake responses of isolated top structure acceleration and interblended displacement have been analyzed. The experimental result indicts that isolated top structure acceleration and interblended displacement were reduced. Therefore the isolation technology for high-rise structure also has better reduction vibration effect.

scholarly journals Optimization and Damping Performance of a Coal-Fired Power Plant Building Equipped with Multiple Coal Bucket Dampers

2018 ◽  
Vol 2018 ◽  
pp. 1-19 ◽  
Author(s):  
Ling-Yun Peng ◽  
Ying-Jie Kang ◽  
Zong-Rui Lai ◽  
Yu-Ke Deng
Keyword(s):  
Power Plant ◽  
Seismic Response ◽  
Optimization Design ◽  
Power Plants ◽  
Shaking Table Test ◽  
Design Method ◽  
Shaking Table ◽  
Seismic Action ◽  
Test Model ◽  
Plant Structure

A parameter optimization design method is proposed for multiple coal bucket dampers (CBDs) to reduce the seismic response of coal-fired power plants. To test the damping effect of the optimized CBDs, a 1 : 30 scale shaking table test model of a power plant structure was fabricated. A comparative testing program was conducted using three seismic excitations on a model with and without CBDs. A finite element analysis model, replicating the conditions of the shaking table test, was constructed for comparison, and the shock absorption effects of CBDs subjected to 22 groups of far-field seismic action and 28 groups of near-field seismic action were analyzed. Finally, the influence of changes in the structural period on the seismic response of the CBD-equipped structure was studied. The results indicate that the use of CBDs in a coal-fired power plant structure, based on an optimization design method for multiple-tuned mass dampers (MTMDs), results in a significant reduction in the structure displacement response, displays a certain discreteness under different excitations, and maintains a certain damping stability even as the structural period changes. Overall, the use of CBDs is a promising prospect for improving the seismic performance of coal-fired power plant structures.

Dynamic Experiments on a 1/4 Scale New-Styled Korean Traditional Wooden House

2014 ◽  
Vol 598 ◽  
pp. 743-746 ◽  
Author(s):  
Yeong Min Kim
Keyword(s):  
Natural Frequency ◽  
Shaking Table Test ◽  
Shaking Table ◽  
Test Model ◽  
Dynamic Tests ◽  
Analysis Model ◽  
Dynamic Experiments ◽  
Wooden House ◽  
Scale Test ◽  
The Impact

This research performed dynamic tests on a 1/4 scale test model of a new-styled Korean traditional wooden house to study its dynamic characteristics. The dynamic tests were performed both by the impact hammer test and the shaking table test of an El-centro N-S seismic wave. Together with these dynamic tests, structural analysis was also performed and the results were compared. The natural frequency from the impact hammer test was slightly higher than that from the shaking table test. The natural frequency from the eigenvalue analysis was about 16~33% lower than that from both the impact hammer test and the shaking table test. It can be deduced that the rotational stiffness of joints of analysis model were somewhat underestimated than those of experiment model.

Numerical Simulation of a RC Frame Shaking Table Test Model Based on CANNY

2010 ◽  
Vol 163-167 ◽  
pp. 981-986
Author(s):  
Li He ◽  
Xian Guo Ye
Keyword(s):  
Numerical Simulation ◽  
Shaking Table Test ◽  
Simulation Analysis ◽  
Shaking Table ◽  
Test Model ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Element Analysis ◽  
Concrete Frame ◽  
History Of

This paper presents the nonlinear dynamic simulation analysis of a shaking table test specimen, which was a twelve- story reinforced concrete frame and tested under base excitations representing four earthquake records of increasing intensity. Owing to the length constraint of the paper, three cases are used for the simulation. The numerical simulation of the test model is conducted utilizing the finite element analysis procedure CANNY, and the analysis results include the natural frequency, response history of the frame and the damage evolution. It is concluded from comparisons between experimental results and the numerical simulation ones that the latter matches well with the former, therefore the validity of the analytical method and model for simulation of RC frame shaking table test is proved.

SHAKING TABLE TEST ON COLLAPSE BEHAVIOR OF SMALL-SCALE STEEL FRAME STRUCTURE

2007 ◽  
Vol 72 (620) ◽  
pp. 125-132 ◽  
Author(s):  
Yuko SHIMADA ◽  
Motoki AKAZAWA ◽  
Yosuke ITO ◽  
Yuichi MATSUOKA ◽  
Satoshi YAMADA ◽  
...  
Keyword(s):  
Shaking Table Test ◽  
Steel Frame ◽  
Shaking Table ◽  
Frame Structure ◽  
Small Scale ◽  
Collapse Behavior ◽  
Steel Frame Structure

The Exprimental Research of Screw Conveyor Feeding System

2012 ◽  
Vol 251 ◽  
pp. 101-103 ◽  
Author(s):  
Hui Li ◽  
Wan Fu Liu
Keyword(s):  
Power Consumption ◽  
Theoretical Calculation ◽  
Experimental Research ◽  
Calculation Result ◽  
Experimental Result ◽  
Screw Conveyor ◽  
Feeding System

This paper makes an experimental research on the screw conveyor feeding system in biomass pyrolytic devices. And ensure the screw conveyor’s boot order, appropriate speed and part of the power consumption. In the end, it makes a comparison with the experimental result and the theoretical calculation result. And find out the error, make an useful suggestion to the further optimization of biomass pyrolytic devices as well.

scholarly journals Shaking Table-Test Model Coupled Dynamics in E-Defense (Simulation Using Linear Medel)

2006 ◽  
Vol 72 (713) ◽  
pp. 30-36 ◽  
Author(s):  
Matabi MITSUTA ◽  
Kouichi KAJIWARA ◽  
Yasutaka TAGAWA ◽  
Eiji SATO
Keyword(s):  
Shaking Table Test ◽  
Shaking Table ◽  
Test Model ◽  
Coupled Dynamics

Research on the Shaking Table Test Model of PCS Storage Tank of AP1000 Nuclear Power Engineering

2017 ◽  
Author(s):  
Jie Xiong
Keyword(s):  
Storage Tank ◽  
Nuclear Power ◽  
Shaking Table Test ◽  
Nuclear Power Engineering ◽  
Shaking Table ◽  
Power Engineering ◽  
Earthquake Ground Motion ◽  
Test Model ◽  
Ratio Requirement ◽  
Similarity Ratio

Since the responses of Liquid storage tanks (LST) include the liquid motion, structural motion, and fluid-structure interaction (FSI) under the earthquake ground motion, it is a difficult problem about shaking table test model for satisfying similarity ratio requirement. The two experimental models, namely satisfied FSI similarity ratio model (FSI model) and unsatisfied FSI similarity ratio (un-FSI) model, respectively, are presented in this paper. The PCS storage tank of AP1000 Nuclear Power Engineering, as the study project, is studied by Adina software, and the responses, such as stress, stain, and displacement, etc., of prototype model, FSI model, and un-FSI model are compared. The results provide that when researchers study the rigidity LST dynamic response parameters and vibration characteristics, such as displacement, acceleration and liquid wave height, the tank wall stress response parameters etc., FSI model should be used.

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