Time-Frequency Characteristics of Ground Motion and Seismic Response Analysis of Typical Structures in the Yangbi Earthquake in Yunnan Province

Table 1

Typical strong motion records and some related parameters of the Ms 6.4 earthquake at epicentral distances of less than 200 km.

Station code	Station type	Epicentral distance (km)	PGA/cm/s/s			PGV/cm/s			Instrumental intensity
			EW	NS	UD	EW	NS	UD
53YBX	Soil	8.6	−379.88	−720.29	−448.36	30.26	−29.4	−7.32	8.9
53DLY	Soil	31.3	−116.41	−108.25	−91.02	−8.45	11.48	2.24	6.95
53YPX	Soil	40.0	−44.94	−65.16	—	3.43	−7.39	—	—
53BTH	Rock	67.7	7.36	6.97	−6.05	0.53	−0.74	0.64	3.29
53BCJ	Soil	72.6	−22.5	−24.3	−18	−2.7	2.47	1.37	5.12
53LKT	Rock	103.5	−10.15	9.66	−12.84	−0.53	−0.48	−0.32	3.51
53SDX	Soil	124.0	19.06	−27.34	9.61	3.25	−4.49	0.78	5.39
53YRH	Soil	145.1	−6.2	−4.41	3.12	−0.64	0.57	0.24	3.09
53LLP	Soil	160.0	−2.41	−3.17	−1.56	−0.34	0.23	−0.11	2.23
51PZF	Soil	184.6	−2.39	2.74	−1.11	0.33	−0.34	0.18	2.17
53MST	Soil	190.2	−5.1	4.8	2.49	0.48	1.02	−0.26	3.2
51PZT	Soil	198.9	−4.95	4	−1.2	−0.26	0.26	0.08	2.41