Apr 04, 2005· The test results indicated that the walls deformed very little with negligible horizontal acceleration amplification when subjected to the first shaking load. Deformation and horizontal acceleration amplification were reasonably small under the second shaking load.

Sep 09, 2018· Shaking Table Tests Examining Seismic Response of Suspended Ceilings Attached to Large-Span Spatial Structures ... The failure of the grid results from the failure of the clips of the main runner and cross runner, the cross runner, and the brace runner. ... Precast Diaphragm Response in Half-Scale Shake Table Test.

Considering the deficiencies of the shaking table tests by Bai et al., [21, 22] proposed a new model design method for shaking table tests for a UHV transmission tower-line coupling system with double circuits on the same tower and geometric nonlinearity and conducted a shaking table test of a UHV grid transmission tower-line system. Aiming at ...

4. Shaking Table Test Results 4.1. Dynamic Properties of Model Structure. Before and after each test phase, as mentioned in Section 3.5, white noise signal was input to the model structure and its dynamic performance information was recorded by sensors.

Shaking table test on vibration control effects of a monopile offshore wind turbine with a tuned mass damper. ... Based on the test results, the seismic responses of a monopile offshore wind turbine attached with/without TMD are also analyzed by the finite element software ANSYS. It has been found that the results obtained by numerical ...

Aug 01, 2020· To accurately simulate the dynamic response of a reinforced slope, appropriate similitude rules are required for the test. In this study, the similitude laws presented by Iai (1989) were used; these laws are widely adopted, being employed in many 1-g model tests. In accordance with the bearing capacity of the shaking table, the similarity ratio to the geometric size was determined to be 1:6.

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 accelerations, namely, 0.15g, 0.3g, and 0.6g are conducted in each test.

MATSUO et al. D Shaking Table Tests and Analyses of Geosynthetic-Reinforced Walls GEOSYNTHETICS INTERNATIONAL S 1998, VOL. 5, NOS. 1-2 101 0 2 4 6 8 10 0.0 0.5 1.0 1.5 2.0 Tensile strain (%) Tensile force (kN/m) 1%/minute 60%/minute Figure 2. Cyclic loading test results for the geogrid reinforcement.

The good test-analysis correlation results obtained validate the analytical shaking table model, show its robustness, and provide keen insight into the underlying coupled dynamics of a shaking ...

Shaking Table Testing Division of the State Key Labora-tory of Disaster Reduction in Civil Engineering (SKLD-RCE), Tongji University, Shanghai, China. It was found from the first shaking table test results that some ex-pectant results might not be revealed, like the severe dy-†Corresponding author: Xilin Lu Tel: +86-21-6598-3430; Fax: +

A half scaled model of a five-story post-and-beam glulam structure with and without braces was fabricated for shaking table tests with various excitations. Test results indicated that the timber ...

Three different Nonlinear Static Methods (NSM's), based on pushover analysis, are applied to a 3-story, 2-bay, RC frame. They are (i) the Capacity Spectrum Method (CSM), described in ATC-40, (ii) the Displacement Coefficient Method (DCM), presented

Dec 01, 2012· Highlights Shaking-table test results of a steel frame with bolted connections are presented. A model based on Low-Cycle Fatigue damage index is developed. Experimental and numerical results are compared to validate the proposed model. Results confirm the changes in frequencies because of the damaged connections. The proposed method can predict the responses …

This paper investigates shaking table test (1g) and numerical simulation (fully coupled) of vertically propagating shear waves for saturated soft free field. A large-scale shaking table model test was performed to study seismic response characteristics of saturated soft soil free field. According to test results of seismic response features of free field system in saturated soft soil, the free ...

Dec 01, 2012· Based on the results, a shaking table test was then conducted on a model full system with a superstructure, a nine-pile foundation and a sandy ground using the selected optimum pattern of the ground improvement to verify the enhancement effect of the partial ground improvement method. Moreover, the test result was also simulated with 3D dynamic ...

Mounting of the Test Object As the test Is performed to simulate the environmental influence, the object must be mounted on the exciter table by its normal means of attachment. In most cases this requires a speCial fixture, which allows the specimen to be vibrated along the specified axes. The method of mounting must be described in the test,

Oct 26, 2016· To study the effect of reinforcement type and quantity on the response of model slopes in this study, a series of shaking table tests were carried out on model slopes reinforced with different quantities of geotextile and geogrid. Model slopes were constructed to an angle of 45° using poorly graded sand. Acceleration of base shaking and shaking frequency were varied in different tests.

However, such results are mostly summaries of the test technologies or control technologies of shaking table, while there are few summaries concerning the construction history and usage of domestic shaking tables. This paper makes a comprehensive summary of the development and application of domestic shaking tables and array test technologies ...

The shake table test model is designed based on the similitude law with a 1:40 scale. The dynamic characteristics, cracking pattern, failure mechanism, as well as maximum acceleration and deformation response are investigated. The corresponding finite-element analysis shows a good agreement with experimental results.

40 scaled test model was designed, built and tested on shaking table under earthquake of small, moderate and large levels. The experimental results showed that the structure can meet the requirements of Chinese codes and reach scheduled performance

Accordingly, the shaking table test is applied to assess the effect of temperature on the possibility of earthquake-induced liquefaction of CPB. Shaking table tests are performed on CPB cured for ...

The numerical predictions of each method are compared to the experimental results of the shaking table tests carried out on two similar 1:3.3-scale structural models, with and without infilled masonry panels, respectively. The comparison is made in terms of maximum story displacements, interstory drifts, and shear forces.

Jul 27, 2020· Based on similar theory, a model test scheme of low-buried and unsymmetrical pressure tunnels with rubber shock absorber layer was designed. The shaking table test was used to study the seismic response of low-buried and unsymmetrical pressure tunnels under different seismic waves and the intensity of excitation. The results show that: (1) Under the action of different seismic waves, the ...

Sep 01, 2019· The shaking table test of the underground structure is buried in the foundation soil, so it is impossible to observe the whole process of the structure without obstacles in real time, just like the above-ground structure. According to the model's structural characteristics of the test, two micro cameras were set up in the model structure on ...

analysis and shaking table test results of the main structure, which were used for acceleration spectra analysis [14]. Due to the symmetrical plan configuration of the main structure, only one horizontal acceleration response was analyzed. The horizontal and vertical smooth design response spectra were developed to be compatible with

2.1 Test specimens. Full‐scale shaking table tests on a single‐span two‐storey steel frame structure were conducted. The floor‐plan size of the steel structure was 3.1 × 4 m (as shown in Figure 1a) and the storey height was 2.9 m. The steel frame was built with H‐shaped structural steel, H150 × 150 × 8 × 8 for columns and H180 ...

Shaking table research has provided valuable insight into liquefaction, post-earthquake settlement, foundation res- ... test results on Toyoura sand, Verdugo and Ishihara 1 showed