Seismic Response and Vibration Reduction Analysis of Suspended Structure under Wave Passage Excitation

Table 7

Peak strain response of key parts.

Case	Location	Model	Concrete strain (με)
			Uniform	800 m/s		500 m/s		300 m/s
El Centro wave	BC	Common	154	152	−1.3%	172	11.7%	150	−2.6%
		Damping	70	72	2.9%	62	−11.4%	63	−10%
	EB	Common	192	290	51.0%	274	42.7%	199	3.7%
		Damping	68	93	36.8%	68	0	70	2.9%
	MB	Common	60	56	−6.7%	52	−13.3%	43	28.3%
		Damping	31	36	16.1%	30	−3.2%	33	6.5%
Taft wave	BC	Common	161	184	14.3%	167	3.7%	154	−4.4%
		Damping	78	43	−44.9%	76	−2.6%	79	1.3%
	EB	Common	194	285	46.9%	255	31.4%	224	15.5%
		Damping	53	67	26.4%	63	18.9%	54	1.9%
	MB	Common	52	55	5.8%	58	11.5%	58	11.5%
		Damping	30	33	10%	29	−3.3%	30	0
Artificial wave	BC	Common	166	318	91.6%	303	82.5%	200	20.5%
		Damping	87	80	−8.1%	81	−6.9%	83	−4.6%
	EB	Common	176	234	33.0%	202	14.8%	194	10.2%
		Damping	95	87	8.4%	83	−12.6%	83	−12.6%
	MB	Common	49	53	8.2%	62	26.5%	69	40.8%
		Damping	26	27	3.9%	28	7.7%	24	−7.7%

Note 1: the “BC” indicates the bottom of the column, the “EB” indicates the ends of the hanging beam, and the “MB” indicates the midspan of the hanging beam. Note 2: a negative in the above table indicates that the value is a negative increase, i.e., the actual value is reduced.