Assessment and Code Considerations for the Combined Effect of Seismic Base Isolation and Viscoelastic Dampers

Table 1

Input parameters for earthquake loading.

Parameter	Original record	Earthquake-A	Earthquake-B
Time step	0.005 seconds	0.001 seconds	0.01 seconds
Maximum acceleration	0.1 g (0.99 m/sec^2)	0.4 g (3.96 m/sec^2)	0.4 g (3.96 m/sec^2)
Predominant period	0.67 seconds	0.13 seconds	1.43 seconds
Duration	138.56 seconds	9.00 seconds	90.00 seconds
No of data points	27711	9000	9000