“Site & region-specific” response spectra: a probabilistic approach

✍ Scribed by V.Y. Sokolov

• Book ID: 104322429
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 380 KB
• Volume: 20
• Category: Article
• ISSN: 0267-7261
• DOI: 10.1016/s0267-7261(00)00060-9

✦ Synopsis

Design seismic forces depend on Peak Ground Acceleration (PGA) values and on the shape of Response Spectrum (RS) curves dictated by Building Codes or which need to be evaluated in every particular case. The PGA values and RS curves strictly depend on earthquake magnitude and distance, as well as on the regional and local geological conditions. At present, there is no doubt that it is necessary to construct so-called ªSite & Region-speci®cº Building Code provisions re¯ecting the in¯uence of different magnitude events at different distances that may occur during the life time of the construction, as well as the variety of local ground conditions. A scheme of Uniform Hazard Response Spectra and PGA estimation considering local site response is described in this paper. The assessments of these design parameters are obtained on the basis of Uniform Hazard Fourier spectra using the conception of ªdominant earthquakesº. The effect of local geology is included by means of the soil/reference site spectral ratios.