Development of Rocking Isolation for Response Mitigation of Elevated Water Tanks under Seismic and Wind Hazards

Table 2

Properties of the recorded ground motions used for the seismic response analysis.

No.	Event	Year	Station	PEER RSN	MW	RDF (Hz)	VCS	PGAscaled (g)
1	Manjil	1990	Tonekabon	1640	7.4	1.2–1.5	Low	0.53
2	Manjil	1990	Abhar	1634	7.4	0.27–0.32; 1.5–4.0	Low	0.43
3	Landers	1992	Yermo Fire Station	900	7.3	0.6–5.0	High	0.61

Record dominant frequencies: the range of frequencies with higher spectral power. Vertical component significance: “high” for records with strong vertical component and vice versa. PGA of the scaled horizontal component (g).