Improving the Structural Reliability of Steel Frames Using Posttensioned Connections

Table 2

Narrow-band motions used for the present study.

Record	Date	Magnitude	Station	PGA (cm/s^2)	PGV (cm/s)	tD (s)
1	19/09/1985	8.1	SCT	178.0	59.5	34.8
2	21/09/1985	7.6	Tlahuac deportivo	48.7	14.6	39.9
3	25/04/1989	6.9	Alameda	45.0	15.6	37.8
4	25/04/1989	6.9	Garibaldi	68.0	21.5	65.5
5	25/04/1989	6.9	SCT	44.9	12.8	65.8
6	25/04/1989	6.9	Sector popular	45.1	15.3	79.4
7	25/04/1989	6.9	Tlatelolco TL08	52.9	17.3	56.6
8	25/04/1989	6.9	Tlatelolco TL55	49.5	17.3	50.0
9	14/09/1995	7.3	Alameda	39.3	12.2	53.7
10	14/09/1995	7.3	Garibaldi	39.1	10.6	86.8
11	14/09/1995	7.3	Liconsa	30.1	9.62	60.0
12	14/09/1995	7.3	Plutarco Elías Calles	33.5	9.37	77.8
13	14/09/1995	7.3	Sector popular	34.3	12.5	101.2
14	14/09/1995	7.3	Tlatelolco TL08	27.5	7.8	85.9
15	14/09/1995	7.3	Tlatelolco TL55	27.2	7.4	68.3
16	09/10/1995	7.5	Cibeles	14.4	4.6	85.5
17	09/10/1995	7.5	CU Juárez	15.8	5.1	97.6
18	09/10/1995	7.5	Centro urbano Presidente Juárez	15.7	4.8	82.6
19	09/10/1995	7.5	Córdoba	24.9	8.6	105.1
20	09/10/1995	7.5	Liverpool	17.6	6.3	104.5
21	09/10/1995	7.5	Plutarco Elías Calles	19.2	7.9	137.5
22	09/10/1995	7.5	Sector popular	13.7	5.3	98.4
23	09/10/1995	7.5	Valle Gómez	17.9	7.18	62.3
24	11/01/1997	6.9	CU Juárez	16.2	5.9	61.1
25	11/01/1997	6.9	Centro urbano Presidente Juárez	16.3	5.5	85.7
26	11/01/1997	6.9	García Campillo	18.7	6.9	57.0
27	11/01/1997	6.9	Plutarco Elías Calles	22.2	8.6	76.7
28	11/01/1997	6.9	Est. # 10 Roma A	21.0	7.76	74.1
29	11/01/1997	6.9	Est. # 11 Roma B	20.4	7.1	81.6
30	11/01/1997	6.9	Tlatelolco TL08	16.0	7.2	57.5