A reasonable choice of structure of a model box is significant for a shaking table test to be successful in geotechnical engineering. A model box has been designed for the shaking table test of a subway station structure in the soft soil of Shanghai in the paper. The reasonable geometric similarity scale of the subway station structure has been determined by a 3-D dynamic analysis under the
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2020-1-22The experimental set-up involved installing ten steel piles with different configurations and pile head masses in dry sand enclosed in a laminar shear box mounted on the Network for Earthquake Engineering Simulation at University of California San Diego NEESUCSD large high-performance outdoor shaking table LHPOST
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Foam stability test a test for fetal pulmonary maturity determined by the ability of pulmonary surfactant in amniotic fluid to generate stable foam in the presence of ethanol after mechanical agitation. Synonyms shake test shake test Foam stability index see there. shake test A quick test to estimate fetal lung maturity. A sample of amniotic
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Unique body of the machine uses the enhanced molding technology of engineering plastics. It includes a built-in DC variable speed motor and the platform is made of rubber that will be
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A series of shaking table model tests on a sawdust mixed clay site model were conducted at the shaking table testing system with 9 sub-tables in Beijing University of Technology. The tests were performed using a rigid prefabricated continuous model box with dimensions of 7.7 meters long 3.2 meters wide and 1.2 meters high
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Read Nonlinear structural system identification using shaking table test data of five-story model building Proceedings of SPIE on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips
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The GRS RW models were erected inside a rectangular prismatic steel box 180 cm long 40 cm wide and 87.5 cm high fixed to a shaking table. Fig. 1a shows a picture of a GRS RW model mounted on the shaking table used in the present study. The front and back sides of the box comprise a transparent-tempered glass window which allowed observation
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The test structure is attached to the table by post-tensioning rods inserted through a 3-foot by 3-foot matrix of 2-58-inch conduits penetrating the Shaking Table surface. The length of the actuator assemblies 8 feet-8 inches in the vertical direction and 10 feet-6 inches in the horiontal direction serve to effectively de-couple the
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Test box and shaking table The shaking table is made of two boards fixed together with three vertical steel plates. The excitation is induced horiontal movement and the vertical plates make a uniform sinusoidal dynamic acceleration on the model. The soil box is 184cm long 50cm wide and 75cm deep made of a 2cm thick transparent Plexiglas
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In this paper a detailed design of a utility tunnel shaking table test is carried out. First the selection of the shaking table model box and sensor were analyed and studied. Then the test scheme was designed in detail. The design of the test scheme mainly includes 4 aspects
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The design and performance of a plane-strain experimental apparatus for evaluating fundamental dynamic properties of soils at low stress levels is described. The apparatus named a shear stack works in conjunction with a shaking table and consists of a flexible hollow box in which a test soil is deposited. The dynamic performance of the apparatus is verified by filling with a dry sand and
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Seismic Earth Pressure Acting on Embedded Footing Based on Large-Scale Shaking Table Tests The total earth pressure in the liquefaction test by contrast depends mainly on the relative displacement because the soil inertia gets small in liquefied soil 3 The total earth pressure in the non-liquefaction tests tends to be out of phase by
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2020-1-28Yan X. et al. 2016 Shaking table test on seismic characteristics of trench slope of immersed tunnel China J. Highway Transp. 2912 149156. Google Scholar Yu H. et al. 2017 Design and analysis of shaking table test on shield tunnel-shaft junction China J. Highway Transp. 308 183192. Google Scholar
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In this paper it is aimed to present a comparative study about the structural behavior of tall buildings consisting of different type of materials such as concrete steel or timber using finite element analyses and experimental measurements on shaking table. For this purpose two 160 scaled 28 and 30-stories wooden building models with 40x40 cm and 35x35 cm groundfloor area and 1.45 m-1.55
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2020-1-22This paper presents the results of shaking table tests on geotextile-reinforced wrap-faced soil-retaining walls. Construction of model retaining walls in a laminar box mounted on a shaking table instrumentation and results from the shaking table tests are discussed in detail
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Shaking table test of reinforced concrete Special-shaped column frame and short-pier wall frame structure Shaking table test of longitudinal vibration energy dissipation of long-span continuous bridge Shaking table test of the box transition storey of tall buildingperiod
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2020-5-17Shaking Table Test of a 12.35 Scale 4-Story Building Constructed with a 3D Panel System O. Reaifar1 M.Z. Kabir2 and A. Bakhshi3 Abstract. The seismic behaviour of a 4-story building is investigated under horiontal excitation of simulated earthquakes. The model has been constructed with a 3D sandwich panel system without any
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2018-6-13The shaking table tests were conducted on small scale embankment slopes to study their behaviors under dynamic conditions. The model embankment slopes were built in a rigid box with a length of 1.0 m width of 0.90 m and height of 0.48 m
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2020-5-30Shaker tables as the name implies utilied a Shaking action for conveying the refuse and discharging it over the refuse end. The tables were hung from rods attached to overhead supporting beams. A shaft and cam arrangement at one end of the table served as the actuating mechanism and imparted to the table an endwise back-and-forth swinging motion. A shaking block was fixed in the
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2075E Vibration Shaker The most versatile option for shaker table testing. This compact portable shaker can produce up to 75 lbf making it suitable for a wide range of applications. The 2075E provides a 3.25 in diameter platform table with 5 10-32 inserts making it easy to attach test objects
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2019-10-21Fang Z Zhang C Chen Y. 2012 Research on the shaking table test of three towers cable-stayed bridge based on three shaking table system. China Civil Engineering Journal45 25
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2020-5-24PEER is pleased to announce the 2018 Blind Prediction Competition on the numerical simulation of a recently completed large-scale liquefaction shaking table experiment. As a part of this PEER-funded project a large-scale shaking table test was recently conducted at UCSDs Powell Laboratory link is external using the 2.9 meter tall soil laminar box which is the basis for this blind
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Research on Segmental Model Container and Its Validation for Multi-point Shaking Table Test of Long Tunnels YU Hai-tao 1 LI Chong 2 YUAN Yong 3 CHAI Rui 4 LIU Hong-hou 5 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of
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Manual shaking table developed very economically can be used as an alternative to a more sophisticated shaking table. Laminar box is a sophisticated container which can enhance the accuracy in assessing the ground behavior. which causes greater response on a 18 SDOF model steel structure accompanied with a damper was simulated and shaking
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Shaking table test is an important method to study on the problem of the soil-structure dynamic interaction. The property of the soil container directly affects the accuracy of the result. A laminar shear container was designed for shaking table test. And a shaking table test on soil-underground structure dynamic interaction which structure lay in clay was conducted
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