TR.19.1 Wide Flange

Wide flange section

General Format

For steel wide flange shapes:

property-spec  = AX D TW WF TF IZ IY IX AY AZ (WF1) (TF1)

For composite wide flange shapes:

property-spec  = -AX D TW WF TF IZ IY IX AY AZ (WF1) (TF1)

CFR CFL CFT MR

For composite wide flange shapes with bottom cover plate:

property-spec  = -AX D TW WF TF IZ IY IX AY AZ (WF1) (TF1)

-CFR CFL CFT MR

BPR BPL BPT

Note: There is a leading dash on the first line of section property specifications when composite slab properties are specified and again at the beginning of the composite slab properties when bottom cover plate dimensions are specified.

AX: Cross section area
D: Depth of the section
TW: Thickness of web
WF: Width of the top flange (or both flanges when WF1 is not specified)
TF: Thickness of top flange (or both flanges when WF1 is not specified)
IZ: Moment of inertia about local z-axis (usually strong axis)
IY: Moment of inertia about local y-axis
IX: Torsional constant
AY: Shear area in local y-axis. If zero, shear deformation is ignored in the analysis.
AZ: Shear area in local z-axis. If zero, shear deformation is ignored in the analysis.
WF1: (Optional) Width of the bottom flange. The width of the top flange will be used if this value is not specified.
TF1: (Optional) Thickness of bottom flange. The thickness of the top flange will be used if this value is not specified.

The following option parameters are used to include a composite concrete slab. If included, these must be on a separate line following a dash, -, on the line containing the required section parameters.

CFR: Width of the composite slab to the right of the web center line
CFL: Width of the composite slab to the left of the web center line
CFT: Thickness of the composite slab
MR: Modular ratio of the concrete in the composite slab

The following option parameters are used to include a bottom flange cover plate.

Tip: Bottom cover plates can only be added in association with a composite slab.

BPR: Width of the additional bottom flange plate to the left of the web center line
BPL: Width of the additional bottom flange plate to the right of the web center line
BPT: Thickness of the additional bottom flange plate

Example

START USER TABLE
TABLE 1
UNIT MMS
WIDE FLANGE
UNEQUAL_FLANGE_I
16855 600 10 405 15 1.10087e+009 1.21335e+008 1.13626e+006 6000 7450 300 17
UNEQUAL_FLANGE_COMP_I
-16855 600 10 405 15 1.10087e+009 1.21335e+008 1.13626e+006 6000 7450 -
300 17
250 350 75 9.1
UNEQUAL_FLANGE_COMP_BOTPLT_I
-16855 600 10 405 15 1.10087e+009 1.21335e+008 1.13626e+006 6000 7450 -
300 17
-250 350 75 9.1
120 100 25
END