180 likes | 236 Views
Deterministic Seismic Hazard Assessment (DSHA) is a straight forward and simplified framework, which can be used for estimation of worst possible ground motions (Kramer 1996). It comprises the following four broad steps: (1) identifying sources around the site of interest; (2) computing the shortest source to site distance; (3) using appropriate Ground Motion Prediction Equations (GMPEs) for estimating ground motion parameters at the site corresponding to every identified source; and (4) reporting the maximum ground motion parameter at the site.
E N D
➢ ➢ ➢ ➢ ➢ ➢
❑ ❑ ❑ ❑
❑ ❑ ❑ ❑
❑ ❑ ❑
❑ ?? ? = ??+ ??? + ????+ ??? + ???? ? + ??????+ ??????? ? + ?? ? ?? ?? ?? ?? ? ? Τ ??= ???(?? ? ??? ,?) ?? ?? ?? ?? ?? ?? ?? ?? σ ?
0.7 ANBU 2013 (Mw=7.0) 0.6 NDMA 2010-HI (Mw=7.0) or Sepctral Acceleration (g) at T = 0 sec 0.5 Peak Ground Acceleartion (g) 0.4 0.3 0.2 0.1 0.0 2 20 200 Hypocentral Distance (km)
❑ ❑ ❑ PGA = MAX (PGA1, PGA2, PGA3) Mmax3 rmin3 IIT(ISM) rmin1 rmin2 Mmax1 Mmax2
❑ ❑ ❑ ❑
❑ ❑ ❑ ❑
❑ ❖ ❑ ❖ ❑ ❖ ❑ ❖ ❖ ❖