D1.I.2.3 Design Parameters
These parameters may be used to control the design process to suit specific modeling needs. The default parameter values have been selected such that they are frequently used numbers for conventional design.
Parameter Name  Default Value  Description 

CODE   
Must be specified as ASCE 52. Design code to follow. See TR.53.2 Concrete DesignParameter Specification. 
BEAM  0.0 
Specifies locations along member length at which member design is designed.

DBL  0.75 in.  Diameter of bolt for calculation of number of bolts required and the net section factor. 
DMAX  45.0 in.  Maximum allowable depth for member selection 
DMIN  0.0 in.  Minimum allowable depth for member selection 
ELA  4 
Indicates what type of end conditions are to be used from among Equations 4.74 thru 4.77 to determine the KL/R ratio.

ELB  1 
Indicates what type of end conditions are to be used from among Equations. 4.78 thru 4.710 to determine the KL/R ratio.

FVB  30 KSI  Shear strength of bolt. 
FYB  36 KSI  Yield strength of bolt. 
FYLD  36.0 KSI  Yield Strength of steel 
KT  1.0  Effective length coefficient for warping restraint (clause 4.14.4, pg 36) 
KY  1.0  Effective length factor (K) for compression buckling about the Yaxis (minor axis) 
KZ  1.0  Effective length factor (K) for compression buckling about the Zaxis (major axis) 
LEG  0.0 
This parameter is meant for plain angles.

LT  Member Length  Effective length for warping. 
LY  Member Length  Length to calculate slenderness ratio for buckling about the Yaxis (minor axis) 
LZ  Member Length  Length to calculate slenderness ratio for buckling about the Zaxis (major axis) 
MAIN  2 
Parameter that indicates the member type for the purpose of calculating the KL/R ratio (See Cl. 4.4, p. 25)

NHL  0  Number of bolt holes on the cross section that should be used to determine the net section factor for tension capacity. 
NSF  1.0  Net section factor for tension members 
RATIO  1.0  Permissible ratio that determines the cut off point for pass/fail status. A value below this quantity indicates PASS while a value greater than this quantity indicates FAILURE. 
TRACK  0.0 
Level of detail in output

UNF  1.0  Same as UNL, but provided as a fraction of the member length 
UNL  Member Length  Unsupported length of member for calculation of allowable bending stress 