Near-Fault Directivity Spectrum for Nuclear Structure Design on Rock Site

Article Preview

Abstract:

This study is aimed at evaluating the safety implications of near-fault directivity effect on nuclear structure and facilities designed according to the Chinese code. To this end, a set of near-fault ground motions at rock site with typical forward-directivity effect is examined with emphasis on several key parameters and response spectra. The bi-normalized response spectra in terms of different corner periods are utilized to derive nuclear design spectra. It was concluded that nuclear design spectra on rock site derived from typical directivity records are significantly influenced by both magnitude and distance. The nuclear design spectra specified in the code need to be adjusted to reflect the near-fault directivity effect of large earthquakes.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 243-249)

Pages:

3820-3823

Citation:

Online since:

May 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Somerville PG. Magnitude Scaling of the Near Fault Rupture Directivity Pulse. Physics of the Earth and Planetary Interiors, 2003, 137:201-212.

DOI: 10.1016/s0031-9201(03)00015-3

Google Scholar

[2] Bray JD, Rodriguez-Marek A. Characterization of Forward-Directivity Ground Motions in the Near-Fault Region. Soil Dynamics and Earthquake Engineering, 2004, 24:815-828.

DOI: 10.1016/j.soildyn.2004.05.001

Google Scholar

[3] Alavi B, Krawinkler H. Strengthening of Moment-Resisting Frame Structures against Near-Fault Ground Motion Effects. Earthquake Engineering and Structural Dynamics, 2004, 33:707-722.

DOI: 10.1002/eqe.370

Google Scholar

[4] Mavroeidis GP, Dong G, Papageorgiou AS. Near-fault ground motions, and the response of elastic and inelastic single-degree-of-freedom (SDOF) systems. Earthquake Engineering and Structural Dynamics, 2004, 33:1023-1049.

DOI: 10.1002/eqe.391

Google Scholar

[5] Galal K, Ghobarah A (2006). Effect of near-fault earthquakes on North American nuclear design spectra. Nuclear Engineering and Design 236(2006):1928-1936.

DOI: 10.1016/j.nucengdes.2006.02.002

Google Scholar

[6] China Earthquake Administration (1997). Code for Seismic Design of Nuclear Power Plants (GB50267-97). Beijing.

Google Scholar

[7] Xu LJ, Rodriguez-Marek A, and Xie LL. Design spectra including effect of rupture-directivity in near-fault region. Earthquake Engineering and Engineering Vibration, 2006, 5(2):159-170.

DOI: 10.1007/s11803-006-0636-8

Google Scholar