D9.B.3 Design Parameters
Parameter Name  Default Value  Description 

CODE   
Must be specified as JAPANESE 2005 to invoke the AIJ 2005. Design code to follow. See TR.48.1 Parameter Specifications. 
BEAM  1.0 
Locations of design:

CAN  0  Specifies the method used for
deflection checks

CB  0 
C value from the AIJ code. Refer to D9.B.2 Member Capacities  Bending Stress for how C is calculated and applied. Use 0.0 to direct the program to calculated Cb. Any other value be used in lieu of the program calculated value. 
DFF  None(Mandatory for deflection check)  "Deflection Length" / Maximum allowable local deflection 
DJ1  Start Joint of member  Joint No. denoting starting point for calculation of "Deflection Length" (See note b) 
DJ2  End Joint of member  Joint No. denoting end point for calculation of "Deflection Length"(See note b) 
DMAX  100 cm  Maximum allowable depth for member. 
DMIN  0.0 cm  Minimum allowable depth for member. 
FYLD  235 MPA  Yield strength of steel in Megapascal. 
KY  1.0  K value in local yaxis. Usually, this is the minor axis. 
KZ  1.0  K value in local zaxis. Usually, this is the major axis. 
LY  Member Length  Length in local yaxis to calculate slenderness ratio. 
LZ  Member Length  Same as above except in zaxis 
MAIN  200  Allowable
Slenderness Limit for Compression Member
Any value greater than 1 = Allowable KL/r in compression (up to 250) 
MBG  0  Specifies how to calculate the
section modulus about the ZZ axis for Hshape, Ishape, and channel sections
when performing major axis bending checks:

MISES  1  Von Mises check options:

NSF  1.0  Net section factor for tension members. 
PLB  0 
Plastic critical slenderness ratio. If this is 0 (the default value), it will be calculated according to AIJ 2005 eqn. 5.12 or 5.14. Any other entered value will be used as the value of plambdab. 
RATIO  1.0  Permissible ratio of the actual to allowable stresses. 
SLF  1  Slender section design option:

TMAIN  400 
Allowable Slenderness Limit for Tension Member
Any value greater than 1 = Allowable KL/r in tension. 
TRACK  0.0 
Level of output detail:

UNF  1.0  Unsupported length for calculating allowable bending stress provided as a fraction of actual member length. 
UNL  Member Length  Unsupported length for calculating allowable bending stress. 
D9.B.3.1 Notes

When performing the deflection check, you can choose between two methods. The first method, defined by a value 0 for the CAN parameter, is based on the local displacement. Refer to TR.44 Printing Section Displacements for Members for details on local displacement..
If the CAN parameter is set to 1, the check will be based on cantilever style deflection. Let (DX1, DY1,DZ1) represent the nodal displacements (in global axes) at the node defined by DJ1 (or in the absence of DJ1, the start node of the member). Similarly, (DX2, DY2, DZ2) represent the deflection values at DJ2 or the end node of the member.
Compute Delta = $\sqrt{{(\text{DX2}\text{DX1})}^{2}+{(\text{DY2}\text{DY1})}^{2}+{(\text{DZ2}\text{DZ1})}^{2}}$
Compute Length = distance between DJ1 and DJ2 or, between start node and end node, as the case may be.
Then, if CAN is specified a value 1, dff = L/Delta
Ratio due to deflection = DFF/dff

If CAN = 0, the "Deflection Length" is defined as the length that is used for calculation of local deflections within a member. It may be noted that for most cases the "Deflection Length" will be equal to the length of the member. However, in some situations, the "Deflection Length" may be different. A straight line joining DJ1 and DJ2 is used as the reference line from which local deflections are measured.
For example, refer to the figure below where a beam has been modeled using four joints and three members. The "Deflection Length" for all three members will be equal to the total length of the beam in this case. The parameters DJ1 and DJ2 should be used to model this situation. Thus, for all three members here, DJ1 should be 1 and DJ2 should be 4. D = Maximum local deflection for members 1, 2, and 3.PARAMETERS DFF 300. ALL DJ1 1 ALL DJ2 4 ALL
 If DJ1 and DJ2 are not used, "Deflection Length" will default to the member length and local deflections will be measured from original member line.
 The above parameters may be used in conjunction with other available parameters for steel design.