14WCEE abstract submission deadline (October 1, 2007)

We are organizing the following special session for the upcoming 14WCEE Meeting (Oct. 12-17, 2008, Beijing, China).

The 14WCEE abstract submission deadline is October 1, 2007. You can submit an abstract through the page "Abstract On-line Submission" at http://www.14wcee.org/

S10 Long-period ground motions and their impacts on large-scale structures

Description:

Long-period ground motion becomes an important issue because of recent rapid increase of large-scale structures such as high-rise buildings, oil storage tanks, and long-span bridges. They can also affect long-period structures such as base-isolated buildings. Large subduction-zone earthquakes and moderate to large crustal earthquakes can generate far-source long-period ground motions in distant sedimentary basins with the help of path effects. Near-fault long-period ground motions are generated, for the most part, due to the source effects of rupture directivity. Far-source ones mostly consist of surface waves with longer duration than that of near-fault ones. They can even be damaging in some circumstances; the worst example occurred in Mexico City due to the 1985 Michoacan earthquake. Further examples were provided by recent large events such as the 2003 Tokachi-oki, Japan, earthquake. This session aims to discuss the characteristics of these kinds of long-period ground motions, their impacts on large-scale structures, and other issues related to them.

Conveners:

o Kazuki Koketsu, Professor, University of Tokyo, Japan. (koketsu@eri.u-tokyo.ac.jp)

o Robert W. Graves, Principal Seismologist, URS Corporation, Pasadena, USA.

o Kusnowidjaja Megawati, Assistant Professor, Nanyang Technological University, Singapore.

o Thomas H. Heaton, Professor, California Institute of Technology, USA.