Table United States 5
Table ASCE 7 - 5 - Values of Ct and x
|
Structure Type |
Ct (hn in ft) |
Ct (hn in m) |
x |
|
steel moment resisting frames resisting 100% of seismic force that are not prevented from deflecting. |
0.028 |
0.068 |
0.8 |
|
concrete moment resistant frames resisting 100% of seismic force that are not prevented from deflecting. |
0.016 |
0.044 |
0.9 |
|
eccentrically braced steel frames |
0.030 |
0.070 |
0.75 |
|
all other structural systems |
0.020 |
0.055 |
0.75 |