Computers and Concrete

  • 제12권2호
  • /
  • Pages.211-228
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  • 2013
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Elasto-plastic time history analysis of an asymmetrical twin-tower rigid-connected structure

  • Wu, Xiaohan (College of Civil Engineering, Tongji University) ;
  • Sun, Yanfei (College of Civil Engineering, Tongji University) ;
  • Rui, Mingzhuo (East China Architectural Design & Research Institute Co., Ltd.) ;
  • Yan, Min (East China Architectural Design & Research Institute Co., Ltd.) ;
  • Li, Lishu (East China Architectural Design & Research Institute Co., Ltd.) ;
  • Liu, Dongze (College of Civil Engineering, Tongji University)
  • 투고 : 2012.08.18
  • 심사 : 2013.03.05
  • 발행 : 2013.08.01
⟨ 이전 논문 다음 논문 ⟩

초록

The structure analyzed in this paper has particular building style and special structural system. It is a rigid-connected twin-tower skyscraper with asymmetrical distribution of stiffness and masses in two towers. Because of the different stiffness between the north and the south towers, the torsion seismic vibration is significant. In this paper, in order to study the seismic response of the structure under both frequent low-intensity earthquakes as well as rare earthquakes at the levels of intensity 7, the analysis model is built and analyzed with NosaCAD. NosaCAD is an nonlinear structure analysis software based on second-development of AutoCAD with ObjectARX. It has convenient modeling function, high computational efficiency and diversity post-processing functions. The deformations, forces and damages of the structure are investigated based on the analysis. According to the analysis, there is no damage on the structure under frequent earthquakes, and the structure has sufficient capacity and ductility to resist rare earthquakes. Therefore the structure can reach the goal of no damage under frequent earthquakes and no collapse under rare earthquakes. The deformation of the structure is below the limit in Chinese code. The time sequence and distribution of damages on tubes are reasonable, which can dissipate some dynamic energy. At last, according to forces, load-carrying capacity and damage of elements, there are some suggestions on increasing the reinforcement in the core tube at base and in stiffened stories.

키워드

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피인용 문헌

  1. Seismic Evaluation of a Multitower Connected Building by Using Three Software Programs with Experimental Verification vol.2016, 2016, https://doi.org/10.1155/2016/8215696
  2. Seismic Performance Analysis of a Connected Multitower Structure with FPS and Viscous Damper vol.2018, pp.1875-9203, 2018, https://doi.org/10.1155/2018/1865761
  3. Evaluation of Seismic performance of RC setback frames vol.66, pp.5, 2013, https://doi.org/10.12989/sem.2018.66.5.609
  4. Artificial Ground Motions and Nonlinear Response of RC Structures vol.2020, pp.None, 2013, https://doi.org/10.1155/2020/8849623