Research Article
A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering
Figure 9
Frequency domain response for the V-shaped canyon topography. Column 2 displays frequency-space contour maps for the spatial distribution of the amplitude of the transfer function obtained with a BEM algorithm and with the current SBD technique with up to 3 orders of diffraction. Column 1 shows the amplitude functions at constant locations for different receivers over the canyon surface while columns 3 and 4 display the amplitude function for constant dimensionless frequencies and for receiver over the free surface.
(a) |
(b) BEM |
(c) |
(d) |
(e) |
(f) 1st-order diffraction |
(g) |
(h) |
(i) |
(j) 2nd-order diffraction |
(k) |
(l) |
(m) |
(n) 3rd-order diffraction |
(o) |
(p) |