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Shaking table test ...
Shaking table test on a novel mega-frame suspended structural system
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- Du, Linpu (author)
- Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, 211189, Nanjing, China
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- Zhang, Wei (author)
- Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, 211189, Nanjing, China
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- Tu, Yongming (author)
- Luleå tekniska universitet,Byggkonstruktion och brand,Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, 211189, Nanjing, China; National Engineering Research Center for Prestressing Technology, Southeast University, 211189, Nanjing, China
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- Song, Shoutan (author)
- Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, 211189, Nanjing, China; National Engineering Research Center for Prestressing Technology, Southeast University, 211189, Nanjing, China
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- Sas, Gabriel (author)
- Luleå tekniska universitet,Byggkonstruktion och brand,SINTEF Narvik AS, Narvik 8517, Norway
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- Elfgren, Lennart, Senior Professor, 1942- (author)
- Luleå tekniska universitet,Byggkonstruktion och brand
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(creator_code:org_t)
- Elsevier, 2022
- 2022
- English.
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In: Journal of Building Engineering. - : Elsevier. - 2352-7102. ; 52
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This paper designed a 1/20 scaled two-segment 19-story mega-frame suspended structure. The seismic behaviors of the structure equipped with viscous dampers (named damping suspended structure, DSS) or rigid connecting rods (named normal suspended structure, NSS) were studied and evaluated by a series of shaking table tests, where three seismic ground motions with two intensities were selected as input motions. Both acceleration and displacement responses of the primary and suspended structures were recorded. The results revealed that the mega-frame suspended system showed good seismic behaviors and viscous dampers could effectively improve its energy dissipation capacities. For DSS, the maximal acceleration and displacement reduction of suspended structures were 75.4% and 39.8% while those of the primary structure were 29.4% and 35.3% respectively. White noise tests showed all models were at the elastic stage under all cases. Evident relative displacements between the primary and subordinate structures were observed for DSS, in this case, the suspended floors were considered as the additional mass of the primary structure and the energy could be dissipated by the swing of suspended floors. The energy dissipation mechanism of DSS was theoretically analyzed while the effect of connection forms on vibration reduction was discussed.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Keyword
- Shaking table test
- Mega-frame suspended structural system
- Mass isolation
- Scaled model
- Viscous dampers
- Byggkonstruktion
- Structural Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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