Top > JDR > A Study on the Response Instability of Seismically Isolated St ...

single-dr.php

JDR Vol.6 No.3 pp. 299-312
(2011)
doi: 10.20965/jdr.2011.p0299

Paper:

Views over last 60 days: 328

A Study on the Response Instability of Seismically Isolated Structures Affected by Ground Inclination During Earthquakes Part 2 : Influence of Dynamic Ground Inclination

Mitsuo Miyazaki and Yukihiro Nishimura

Dynamic Design Inc., ISE Building 3F, 1-16 Sumiyoshi-cho, Shinjuku-ku, Tokyo, Japan

Received:
October 13, 2009
Accepted:
November 25, 2009
Published:
June 1, 2011
Creative Commons License
Keywords:
seismic isolation, vertical ground motion, dynamic ground inclination, horizontal response displacement, resonance phenomena
Abstract
In the design and analysis of seismically-isolated structures, it is assumed that the ground is always horizontal during earthquake ground shaking. But a previous paper [3] found that ground inclination may reach to 1/1000∼1/100 (rad) during earthquake shaking, and that the horizontal displacements of isolated structuresmay be significantly affected by the static ground inclination. This paper investigates how the displacement of isolated structures may be increased by dynamic ground inclination during earthquake shaking. Since no time-histories of ground inclination exist, this paper assumes two different conditions for ground inclination motions : sine-wave motions, and displacement time-history inputs with the same phasing as vertical displacement waves. In the case of assumed sinewave motions, the increased displacement of an isolated structure due to dynamic ground inclination can be predicted by considering two factors: the basic increase displacement and the resonance amplification ratio of the isolation period to the dynamic ground inclination period. When displacement time-history waves are considered, the upper limit of displacement increase can be predicted by the isolation period and the longest period of the ground inclination motion.
Cite this article as:
M. Miyazaki and Y. Nishimura, “A Study on the Response Instability of Seismically Isolated Structures Affected by Ground Inclination During Earthquakes Part 2 : Influence of Dynamic Ground Inclination,” J. Disaster Res., Vol.6 No.3, pp. 299-312, 2011.
Data files:
References
  1. [1] “Recorded Earthquake Ground Motions in the 2007 Niigata-ken Chuetsuoki Earthquake and the 2008 Iwate-Miyagi Nairiku Earthquake,” No.5 Technical Annual Report, pp. 2-2∼2-9, Input motion sub-committee, Seismic Isolation Design Div., JSSI (the Japan Society of Seismic Isolation), 2009/4/23.
  2. [2] M. Miyazaki, “The Next Generation of Seismic Isolation, – Going beyond Seismic Design Dominated by Earthquakes –,” J.l of Disaster Research Vol.3, No.6, Dec., 2008.
  3. [3] M. Miyazaki and Y. Nishimura, “A Study on the Response Instability of Seismically Isolated Structures affected by Ground Inclination during Earthquakes, Part 1 : Estimation of Ground Inclination during Earthquakes and the Influence of Static Ground Inclination,” J. of Disaster Research Vol.6, No.3, 2011.
  4. [4] “Seismically Isolated Buildings, – The Technology Developments and Earthquake Observation Results –,” The Building Center of Japan, Nov., 1992.
  5. [5] “Structural Response and Performance for Long period Seismic Ground Motions,” Architectural Institute of Japan, 2007/12/10.
  6. [6] M. Miyazaki, Y. Nishimura et al., “Practical Research for Seismic Performance Upgrading of piles, Part 1∼Part 7,” Summaries of technical papers of annual meeting, AIJ (Architectural Institute of Japan), pp. 497-502 (Sept.1999), pp. 633-636 (Sept.2000), pp. 455-457 (Sept.2001).
  7. [7] M. Miyazaki, Y. Nishimura et al., “Development of a Ball point Joint for Cast-in-place Concrete Piles, Part 1∼Part 5,” Summaries of technical papers of annual meeting, AIJ, pp. 613-618 (Sept.2003), pp. 692-692 (Aug.2004), pp. 421-422 (Sept.2005).
  8. [8] M. Miyazaki, Y. Nishimura et al., “Development of Pile-top Isolation System, Part 1∼Part 3,” Summaries of technical papers of annual meeting, AIJ, pp. 383-388, Aug., 2004.
  9. [9] S. Kanamori, T. Kamimura et al., “The influence of Rotational Deformation of Rubber Bearings on Superstructure of the Column Top Isolated Building Part 1∼Part 2,” Summaries of technical papers of annual meeting, AIJ, pp. 769-772, Sept., 2005.
  10. [10] E. Takaoka, Y. Takenaka et al., “Mechanical characteristics of base isolation devices subjected to end rotations, Part 1∼Part2,” Summaries of technical papers of annual meeting, AIJ, pp. 367-370, Sept., 2008.
  11. [11] Y. Kitamura, M. Kikuchi et al., “Mechanical characteristics of rubber bearing with angled flange plates, Part 1∼Part 3,” Summaries of technical papers of annual meeting, AIJ, pp. 371-376, Sept., 2008.
  12. [12] S. Ichihara and I. Matsumura (Editorial Supervisor), “The 1891 Nohbi Earthquake and the Neodani Fault,” Kyoiku-shuppan bunka kyokai, Feb., 1978.
  13. [13] H. Kaneda and A. Okada, “Surface rupture associated with the 1943Tottori earthquake : compilation of previous reports and its tectonic geomorphological implications,” Active Faults Research, 21 pp. 73-91, 2002.
  14. [14] Y. Ohta and O. Aydan, “An Experimental Study on Ground Motions and Permanent Deformation nearby Earthquake Faults,” J. of The School of Marine Science and Technology, Vol.2, No.3, pp. 1-12, Tokai university, 2004.
  15. [15] G. Tabuchi, M. Hamada et al., “Prediction Research on an appearance place and the amount of deformation of Surface rupture faults,” Summaries of technical papers of 58th annual meeting, JSCE (Japan Society of Civil Engineers), Sept., 2003.
  16. [16] N. Yoshida, K. Wakamatsu, and M. Saito, “The Reconnaissance report of Noto-Hanto Earthquake in 2007 (Part 2),” Tohoku-Gakuin University, April, 2007.
  17. [17] D. Higaki “The Reconnaissance report on the landslide at the Aratozawa dam headwaters area in The Iwate-Miyagi Nairiku Earthquake in 2008,” the Japan landslide society, July, 2008.
  18. [18] S. Sugimura and S. Ohtuka, “Report on housing lot ground failure in 2004 Mid Niigata Prefecture Earthquake and The 2007 Niigataken Chuetsu-oki Earthquake,” Department of Civil and Environmental Engineering, Nagaoka University of Technology, 2007.
  19. [19] K. Ohtake, T. Ohmachi, and G. Kubo, “Damage of the water supply pipeline and ground displacement in near-field during the Mid Niigata Prefecture Earthquake,” J. of Japan Society of Civil Engineers, CD-ROM, 2005.
  20. [20] K. Ohtake, T. Ohmachi, and S. Inoue, “The displacement of nonliquefiable ground in near field related to the damage of buried pipelines,” J. of Japan Society of Civil Engineers, A, Vol.63, No.1, pp. 93-107, 2007.1.
  21. [21] A. Shibata, “The newest Analysis of Earthquake resistant structure,” pp. 16-17, Kitamori-shuppan, 1981.6.

Creative Commons License  This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

*This site is desgined based on HTML5 and CSS3 for modern browsers, e.g. Chrome, Firefox, Safari, Edge, Opera.

Last updated on Apr. 18, 2024