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STAAD Commands and Input Instructions
Section 5
5-184
f10 = Optional Period of structure (in sec) in Z (or Y if Z up)-
direction to be used in Method B
The Soil Profile Type parameter STYP can take on values from 1
to 5. These are related to the values shown in Table 16-J of the
UBC 1997 code in the following manner :
STAAD Value UBC 1997 code value
1 S
A
2 S
B
3 S
C
4 S
D
5 S
E
The soil profile type S
F
is not supported.
The seismic zone factor (ZONE) in conjunction with the soil
profile type (STYP), Near source factor (Na), and the Near source
factor (Nv), is used to determine the values of seismic coefficients
Ca and Cv from Tables 16-Q and 16-R of the UBC 1997 code.
Examples
DEFINE UBC LOAD
ZONE 0.38 I 1.0 STYP 2 RWX 5.6 RWZ 5.6 NA 1.3 NV 1.6 CT 0.037
SELFWEIGHT
JOINT WEIGHT
51 56 93 100 WEIGHT 1440
101 106 143 150 WEIGHT 1000
151 156 193 200 WEIGHT 720
MEMBER WEIGHT
12 17 24 UNI 25.7
FLOOR WEIGHT
YRA 9 11 FLOAD 200 XRA –1 21 ZR –1 41
ELEMENT WEIGHT
234 TO 432 PR 150