Effect of Joint Flexibility on Seismic Performance of a Reinforced Concrete Ductile Moment-Resisting Frame
Table 2
Characteristics of the selected ground motions.
Record ID
Earthquake
Station
(km)
PGA (g)
PGV (m/s)
ratio
Frequency content
1
El Centro 1940
6.95
El Centro array #9
6.09
0.28
0.31
0.91
Medium
2
Kobe 1995
6.9
KJMA
0.96
0.83
0.91
0.92
Medium
3
Loma Prieta 1989
6.93
BRAN
10.7
0.46
0.51
0.89
Medium
4
Northridge 1994
6.69
Pardee—SCE
7.46
0.56
0.76
0.74
Low
5
Northridge 1994
6.69
Rinaldi receiving sta
6.5
0.87
1.48
0.59
Low
6
Chi-Chi Taiwan 1999
7.62
TCU071
0.32
0.53
0.52
1.02
Medium
7
Chi-Chi Taiwan 1999
7.62
TCU068
5.8
0.37
2.64
0.14
Low
is the moment magnitude, and is the closest distance to a fault rupture. The effective durations of the ground motions are determined using the arias intensity measure , which indicates the amount of energy expended in the production of damage.
