A substructure shaking table test for reproduction of earthquake responses of high-rise buildings

A building developed by Wuhan Shimao Group in Wuhan, China, is a high-rise residence with 56 stories near the Yangtze River. The building is a reinforced concrete structure, featuring with a nonregular T-type plane and a height 179.6 m, which is out of the restrictions specified by the China Technical Specification for Concrete Structures of Tall Building (JGJ3-2010). To investigate its seismic performance, a shaking table test with a 1/30 scale model is carried out in Structural Laboratory in Wuhan University of Technology. The dynamic characteristics and the responses of the model subject to different seismic intensities are investigated via the analyzing of shaking table test data and the observed cracking pattern of the scaled model. Finite element analysis of the shaking table model is also established, and the results are coincident well with the test. An autoregressive method is also presented to identify the damage of the structure after suffering from different waves, and the results coincide well with the test and numerical simulation. The shaking table model test, numerical analysis, and damage identification prove that this building is well designed and can be safely put into use. Suggestions and measures to improve the seismic performance of structures are also presented.

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Vibration Control of High-Rise Buildings Using High-Damping Rubber Damper. 1st Report. Shaking-Table Test and Response Analysis.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C ◽

10.1299/kikaic.59.2636 ◽

1993 ◽

Vol 59 (565) ◽

pp. 2636-2642 ◽

Cited By ~ 1

Author(s):

Satoshi Fujita ◽

Takafumi Fujita ◽

Osamu Furuya ◽

Shoichi Morikawa ◽

Yoji Suizu

Keyword(s):

Vibration Control ◽

Shaking Table Test ◽

Shaking Table ◽

Response Analysis ◽

High Rise ◽

High Damping Rubber ◽

Rubber Damper

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3D Temporal Characteristics of Scale Model Responses in Shaking Table Test

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.163-167.3977 ◽

2010 ◽

Vol 163-167 ◽

pp. 3977-3980

Author(s):

Yan Ru Wang ◽

Mao Yu Zhang ◽

Jun Wu Dai ◽

Mai Tong ◽

George C. Lee

Keyword(s):

Velocity Vector ◽

Shaking Table Test ◽

Shaking Table ◽

Scale Model ◽

Euclidean Norm ◽

Temporal Characteristics ◽

High Rise ◽

Acceleration Vector ◽

Tangential Acceleration ◽

Normal Acceleration

In this paper, we present the analysis on 3D temporal characteristics of a scale model for high-rise structure. Based on the parameter of instantaneous tangential acceleration aT, normal acceleration aN, Euclidean norm of acceleration vector |a|, Euclidean norm of velocity vector |v|, temporal curvature κ, κt, Some interesting relationships and information in depth between them would be obtain.

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Seismic Performance Evaluation of a High-Rise Building with Lapping Transfer Columns by Shaking Table Tests

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.163-167.1281 ◽

2010 ◽

Vol 163-167 ◽

pp. 1281-1285

Author(s):

Bin Wang ◽

Huan Jun Jiang ◽

Jian Bao Li ◽

Wen Sheng Lu ◽

Xi Lin Lu

Keyword(s):

Seismic Performance ◽

Shaking Table Test ◽

Dynamic Properties ◽

Shaking Table ◽

Vertical Force ◽

Scaled Model ◽

Seismic Performance Evaluation ◽

High Rise ◽

High Rise Building ◽

Global And Local

The reinforced concrete (RC) frame-tube structure considered in the study has two towers with lapping transfer columns. The lapping transfer columns, considering aesthetic requirement in elevation, lead to a complex vertical force transfer system. The large irregularity in elevation, according to Chinese code, necessitates a detailed study. A 1/15-scaled model of the high-rise building was tested on a shaking table to evaluate its seismic performance. The model was subjected to earthquake inputs representing frequent, basic, rare, and extremly rare earthquakes. The results of shaking table test in terms of the global and local responses as well as the dynamic properties are presented. The tests demonstrate that the designed structural system satisfies the pre-defined performance objectives and the lapping transfer columns have good seismic peformance. To better control seismic damages of the building, some suggestions for improving the design of this structure are also put forward at last.

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SHAKING TABLE TESTS ON A COMPLEX HIGH-RISE STRUCTURE WITH TWO TOWERS AND LAPPING TRANSFER COLUMNS

Journal of Earthquake and Tsunami ◽

10.1142/s1793431112500303 ◽

2013 ◽

Vol 07 (04) ◽

pp. 1250030 ◽

Cited By ~ 6

Author(s):

XILIN LU ◽

BIN WANG ◽

HUANJUN JIANG ◽

JIANBAO LI ◽

WENSHENG LU

Keyword(s):

Structural Engineering ◽

Shaking Table Test ◽

Dynamic Properties ◽

Shaking Table ◽

Vertical Force ◽

Scaled Model ◽

Local Responses ◽

High Rise ◽

Force Transfer ◽

Global And Local

In recent decades, structural engineering tends to progress toward more novel high-rise structures under the requirement of realistic functions and architectural aesthetics. The complex high-rise building structure in this study has two towers with lapping transfer columns. The lapping transfer columns, considering aesthetic requirement in elevation, lead to a complex system of vertical force transfer. The large irregularity in elevation, according to Chinese code, needs a detailed study. A 1/15-scaled model of the structure was tested on the shaking table to evaluate its seismic performance. During the tests, the model was subjected to earthquake inputs representing frequent, basic, rare, and extremely rare earthquakes. The results of shaking table test in terms of the global and local responses as well as the dynamic properties are presented. The tests demonstrate that the designed structural system satisfies the pre-defined performance objectives and the lapping transfer columns are capable of coordinating the bi-level stories to resist lateral forces even under extremely strong earthquakes. To better control seismic damages of the building, some suggestions for improving the design of this structure are also put forward at last.

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Shaking Table Test of Isolated Structure Model with Small Scale

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.250-253.2036 ◽

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.

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Experimental Verification of Methods for Converting Acceleration Data in High-Rise Buildings into Displacement Data by Shaking Table Test

Applied Sciences ◽

10.3390/app9081653 ◽

2019 ◽

Vol 9 (8) ◽

pp. 1653 ◽

Cited By ~ 1

Author(s):

Han ◽

Park ◽

Kim ◽

Baek

Keyword(s):

Transfer Function ◽

Dynamic Characteristics ◽

High Speed ◽

Model Building ◽

Shaking Table Test ◽

Shaking Table ◽

Frequency Noise ◽

High Speed Imaging ◽

High Rise ◽

Acceleration Data

When diagnosing damage to high-rise buildings during earthquakes, it is necessary to measure the displacement of each story. However, with respect to accuracy and cost, it is most reasonable to convert acceleration into displacement. In this study, shake table testing was carried out to verify the conversion methods, converting the acceleration data measured in a high-rise building into velocity and displacement. In the shaking table test, the displacement of a 10-story model building under strong motion was measured using high-speed imaging devices. High-speed images were taken at 1000 frames per second, reflecting the dynamic behavior of the model building. Then, this displacement was compared with the displacement obtained by processing the acceleration data. This study applied three methods for correcting and converting acceleration into velocity and displacement. Method 1 used the transfer function, H2ω, which reflects the dynamic characteristics of the system. The displacements converted by this method showed the lowest accuracy, because the transfer function depends on the dynamic characteristics of the structure. Method 2 used the cosine Fourier transform for baseline correction, and the discrete input data are calculated as the sum of the cosine functions. Method 3 used the least-squares fitting in the first step to remove the linear drift in the acceleration and applied the high-pass Butterworth filter. The displacements converted by Method 2 were the most reliable, and were close to the displacements measured in the shaking table test. However, the response of high-rise buildings is affected by low- and high-frequency noise. It is necessary to further investigate the limitations and applicability of the conversion methods for providing reliable displacement of the building.

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