Study on Dynamic Behavior of Single-Layer Reticulated Dome by Shaking Table Test

Large-span space structures in the form of reticulated domes, which have developed rapidly in the last three decades, are widely used in large-scale public buildings. In order to have a better understanding of its mechanical performance and verify the failure pattern under seismic motion, a shaking...

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Bibliographic Details
Published inInternational journal of steel structures Vol. 18; no. 2; pp. 635 - 649
Main Authors Nie, Gui-bo, Zhu, Xing-long, Zhi, Xu-dong, Wang, Fuyang, Dai, Junwu
Format Journal Article
LanguageEnglish
Published Seoul Korean Society of Steel Construction 01.06.2018
Springer Nature B.V
한국강구조학회
Subjects
Civil Engineering
Computer simulation
Deformation
Domes
Engineering
Failure
Finite element method
Material properties
Materials Science
Mathematical models
Mechanical properties
Public buildings
Shake table tests
Shaking
Solid Mechanics
Spacecraft
Storage modulus
Tables
Vibration damping
토목공학
Shaking table test
Reticulated domes
Numerical simulation
Dynamic strength failure
Dynamic characteristic
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Summary:Large-span space structures in the form of reticulated domes, which have developed rapidly in the last three decades, are widely used in large-scale public buildings. In order to have a better understanding of its mechanical performance and verify the failure pattern under seismic motion, a shaking table test of a single-layer reticulated dome was carried out. The geometric position of the structural nodes and material properties of the members were measured, such as yield strength and Young’s modulus. The dynamic characterization of the model under white-noise excitation and fast size frequency was then performed to obtain its natural vibration frequency and damping factor. Next, the mechanical performance of the model under weak and strong seismic motions was investigated experimentally. Finally, a comparison between the experimental and numerical results obtained using the finite element software ABAQUS was made and a satisfactory agreement was found. The occurrence of large-scale deformation and significant material plasticity of these structures under severe seismic motion can be regarded as indicators of dynamic strength failure. This is the first time that the pattern of dynamic strength failure has been observed via shaking table tests.
ISSN:1598-2351
2093-6311
DOI:10.1007/s13296-018-0021-2