Earthquakes and Structures

  • 제5권2호
  • /
  • Pages.225-237
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  • 2013
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Vibration control parameters investigation of the Mega-Sub Controlled Structure System (MSCSS)

  • Limazie, Toi (School of Civil Engineering, Tongji University) ;
  • Zhang, Xun'an (School of Mechanic, Civil and Architectural Engineering, Northwestern Polytechnical University) ;
  • Wang, Xianjie (School of Mechanic, Civil and Architectural Engineering, Northwestern Polytechnical University)
  • 투고 : 2011.09.04
  • 심사 : 2013.05.24
  • 발행 : 2013.08.07
⟨ 이전 논문 다음 논문 ⟩

초록

Excessive vibrations induced by earthquake excitation and wind load are an obstacle in design and construction of tall and super tall buildings. An innovative vibration control structure system (Mega-Sub Controlled Structure System-MSCSS) was recently proposed to further improve humans comfort and their safeties during natural disasters. Preliminary investigations were performed using a two dimensional equivalent simplified model, composed by 3 mega-stories. In this paper, a more reasonable and realistic scaled model is design to investigate the dynamical characteristics and controlling performances of this structure when subjected to strong earthquake motion. The control parameters of the structure system, such as the modulated sub-structures disposition; the damping coefficient ratio (RC); the stiffness ratio (RD); the mass ratio of the mega-structure and sub-structure (RM) are investigated and their optimal values (matched values) are obtained. The MSCSS is also compared with the so-called Mega-Sub Structure (MSS) regarding their displacement and acceleration responses when subjected to the same load conditions. Through the nonlinear time history analysis, the effectiveness and the feasibility of the proposed mega-sub controlled structure system (MSCSS) is demonstrated in reducing the displacement and acceleration responses and also improving human comfort under earthquake loads.

키워드

참고문헌

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피인용 문헌

  1. Wind-induced vibration control of super-tall buildings using a new combined structural system vol.172, 2018, https://doi.org/10.1016/j.jweia.2017.10.029
  2. Floor acceleration control of super-tall buildings with vibration reduction substructures vol.26, pp.16, 2017, https://doi.org/10.1002/tal.1343
  3. Experimental investigation of mega-sub isolation structure vol.26, pp.16, 2017, https://doi.org/10.1002/tal.1360
  4. Optimization of response of a dynamic vibration absorber forming part of the main system by the fixed-point theory 2018, https://doi.org/10.1007/s12205-017-1237-y
  5. Seismic Performance Evaluations of Mega-Sub Isolation System vol.2016, 2016, https://doi.org/10.1155/2016/7031712
  6. Mechanism Analysis and Parameter Optimization of Mega-Sub-Isolation System vol.2016, 2016, https://doi.org/10.1155/2016/2605839
  7. Dynamic Reliability Analysis of Mega-Sub Isolation System Under Random Ground Motion vol.11, pp.None, 2013, https://doi.org/10.2174/1874149501711010822
  8. Seismic behavior of MSCSS based on story drift and failure path vol.18, pp.8, 2013, https://doi.org/10.1590/1679-78256787
  9. Investigations on a mega-sub isolation system under near-fault ground motions vol.24, pp.15, 2021, https://doi.org/10.1177/13694332211026227