Seismic Response of Power Transmission Tower-Line System Subjected to Spatially Varying Ground Motions

Table 6

Parameters for coherency loss functions.

Coherency loss	$\beta$	$a$	$b$	$c$
Highly	$1.109\times {10}^{-4}$	$3.583\times {10}^{-3}$	$-1.811\times {10}^{-5}$	$1.177\times {10}^{-4}$
Intermediately	$3.697\times {10}^{-4}$	$1.194\times {10}^{-2}$	$-1.811\times {10}^{-5}$	$1.177\times {10}^{-4}$
Weakly	$1.109\times {10}^{-3}$	$3.583\times {10}^{-2}$	$-1.811\times {10}^{-5}$	$1.177\times {10}^{-4}$