Considering the geotectonic environment and the historical importance, it is necessary to investigate the dynamic characteristics of the historical constructions in the c [...]

The design earthquake motions are often defined by the response spectra. For example, in the seismic design standard for the Japanese Railway facilities (1999) there are [...]

The early warning information is requires not to cause the social confusion and mislead especially for the public people and the important facilities but in these days so [...]

It is well known that the strength of reinforced concrete columns is degraded by cyclic loading, particularly in the post-peak region. When we examine the seismic safety [...]