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A series of pullback and shaking table tests were performed for evaluating the seismic performance of 1 a scale model of a three-story steel rigid frame structure and 2 the same model equipped with shape memory alloy SMA dampers. The dampers
the performance requirements of the shaking table. 4 Requirements of construction and capability of equipment must be accessible in laboratory. Consequently, non-gravity model of non-prototype materials is adopted in the present test. Similitude Table 1. Test Objectives and Arrangement
As a result, shaking table test has been widely adopted to examine and evaluate the seismic properties of structures. In the E-Defense shaking table testing facility, Suzuki et al. 7 carried out a shaking table test with a cylindrical laminar shear soil box, and identified the factors affecting the pile stress distribution in the seismic process.
Mar 15, 2020 The test was performed at the seismic laboratory of Harbin Institute of Technology. The single degree-of-freedom DOF in the horizontal direction 4 m 3 m shaking table had a maximum stroke of 125 mm, output frequencies in the range 0.130 Hz, and is capable of producing harmonic, random, and seismic waves.
The shaking table test is one of the most effective methods to study and evaluate the seismic performance of complex buildings. Many researchers, including Li et al. 2006, Lu et al. 2012b, and Ko and Lee 2006, have conducted scaled model tests on shaking tables to study the seismic performance of tall and super high-rise buildings.
The shaking table test and finite element method were used for simulation embankment model. In the shaking table test through the acceleration and pore pressure type of sensors and in the finite element software based on mathematical modeling, seismic behavior of embankment has been analyzed. The results clearly revealed that the embankment suffers collapse during increasing stress which is ...
Mar 11, 2020 Based on the similarity theory, two physical models of the double-arch tunnel with and without the damping layer are set. Through the shaking table test and numerical simulation, the damping effect of the foam concrete damping layer on the acceleration, stress, displacement and internal force of the shallow-buried bias double-arch tunnel is studied.
Post shaking table component tests a moment rotation diagram for exterior column base of Frame 1 together with the calibrated analytical model b comparison between 1.5 from Buffalo and Stanford tests for the same location For the posttest analytical response prediction of the two frames we use the recorded shaking table ground motions.
A schematic illustration of the shaking table test is shown in Figure 1. The soil container was a laminar box with dimensions of 800 mm in x-direction 500 mm in y-direction and a depth of 530 mm. It consists of 10 rings each having a height of 50 mm. The model ground was dry Silica
Two tests, namely, Test-1 and Test -2 are conducted on shaking table device on Dr80 and 60 , respectively. Also 3-phases of accelerations, namely, 0.15g, 0.3g, and 0.6g are conducted in each test. The presented data include acceleration, pore water pressure, soil pressure, dynamic water pressure and
To study the seismic performance of the 4tower connected structure, a 125 scale model is tested by shaking table tests subject to minor, moderate, and major earthquake. According to the Chinese code, peak ground accelerations subject to the 3 levels are specified as 0.025, 0.07, and 0.175 g .
Owing to the limit of the shaking table, the size of the SSI and SSSI models in the test was scaled down from full-scale buildings and foundations. The test models used similitude principles and practical considerations commonly used in the seismic study of SSI systems in shaking table tests Lu et al., 2002a Lu et al., 2005.
shaking table tests on a 15th-scale model of a traditional timber pagoda . In this paper, a structural model is conducted for dynamic response analysis in order to reproduce the results of the shaking table tests. The validity of this analysis models was confirmed by comparing it with the results of
The test-analysis correlation study performed over a wide range of operating and payload conditions provides useful information on the sensitivity of the shaking table transfer function to control gain parameters and how it can be used to tune the shaking table controller for optimum performance under various payload conditions.
shaking table was constructed in Japan in the late 19th century and was excited through physical means 9. The modern day technology allows engineers to design shaking tables for use with multi-degree of freedom systems. The test structures are placed and connected to the shaking table and the specimens are shaken until the point of failure.
Shaking Table Testing 8 log 2 m e mn a a h n 7 4 Shaking Table Test A simple test using a small shaking table will be performed to determine the dynamic properties of the specimen. The table is driven harmonically with the specified frequency. The frequency of the harmonic wave can be controlled step by step and accelerations at the base
Shaking table test for gymnasium buildings with large span is not widely used presently. There are many reasons 1 There are not so many gymnasium buildings with large span. They are usually the symbol buildings of a city or even a province. And the amount of those which need to do shaking table
Shaking table test is an important and useful method to help structural engineers get better knowledge about the seismic performance of the buildings with complex structure, just like Shanghai tower. According to Chinese seismic design guidelines,
In this paper, the shaking table test result to verify the vertical vibration isolation performance of a newly developed bearing system 1 is presented. The bearing system or the isolator is developed based on friction damping and spring-based restoring mechanism. The shaking table test Manuscript received July 9, 2013 revised September 4, 2013.
Tzou-Shin Ueng,1 Ming-Huei Wang,2 Ming-Horn Chen,3 Chia-Han Chen,4 and Li-Hsien Peng5 A Large Biaxial Shear Box for Shaking Table Test on Saturated Sand ABSTRACT A large exible laminar shear box was developed for the study of the behavior of saturated sand, especially liquefaction, and soil-structure interactions under two-dimensional earthquake shaking on a shaking table at the National ...
Yan, 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
Experimental design of the model specimen followed established similitude relationships for shaking table tests on reduced-scale models in a 1-g gravitational field, including scaling of model geometry, geosynthetic-reinforcement stiffness, backfill soil modulus, bridge load, and characteristics of the earthquake motions. The 2.7-m-high GRS ...
Most of the shaking table tests utilized the scale test, which required a sufficient similarity relationship between the model and the prototype so as to maintain the correct geometric size and material performance of the model and prototype structure . However, the selected similar materials reflected the defects encountered in the actual ...
Mar 21, 2019 A flexible wall barrel, shaking table test method is suitable for investigating pile behavior during an earthquake. Cost, time, and difficulties in identifying soil properties accurately in physical models, in addition to the effects of test conditions, have led to the current research where the physical test is replaced by numerical simulation.
Feb 13, 2019 shown in Table 2. 2.3. Model Constructing. Since the aim of the shaking table test is to investigate the seismic behavior of the original structure subjected to dierent intensity of earthquakes, including failure mode and mechanisms, it is necessary to
The MTS shaking table used for the experiment is a biaxial table, having two 100kN dynamically rated actuators driven by a hydraulic pump delivering 63lmin. The table has a maximum stroke of 200mm in the horizontal plane in both directions. A PC provides a displacement input to the controller unit and also serves as the data acquisition system ...
Shaking Table Test of BRB Strengthened RC Frame 8 4 Observation and Records 1 No damage occurred to the frames up to 250 level of earthquake and both frames were intact. 2 First crack in the columns appeared at 275 level of earthquake excitation. For the control frame,
floor and beams. According to the current standards of China, two 15 scale test models of four-storey in-filled RC frame structures with 2 2 spans were designed and made, one with common floor slabs and another with the limited disconnection floor from beams at the corners. Through the shaking table contrast tests of the two models,
A reduced-scale model of 7-story reinforced concrete shear wall structure is made. Shaking-table test of the model is carried out. Two test conditions are considered. In the first condition, fixed base is used. In another condition, soil structure interaction is considered. According to the experimental results, the dynamic characteristic and seismic performance of shear wall structure is studied.
USGS Figure 6. As is seen in the result of the shaking table test, the specimen behaved almost in accordance with Descriptive table as it got cracked by the first MMI 9 shaking, endured another MMI 9 shaking, and finally collapsed by the third MMI 9 shaking.
Oakes, Caleb Robert, Shaking Table Testing to Evaluate Effectiveness of Prefabricated Vertical Drains for Liquefaction Mitigation 2015. All Theses and Dissertations . 6152.
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