D4.D.4 Built-in Timber Section Library

The following information is provided for use when the built-in timber tables are to be referenced for member property specification. These properties are stored in a database file. If called for, the properties are also used for member design.

Following are the description of the different types of species combination available:

D4.D.4.1 Douglas Fir-Larch

The following example illustrates the specification of Douglas Fir-Larch species combination.

100 TO 150 TABLE ST DFL_SelStr_2X2_BM

D4.D.4.2 Hem-Fir

Designation of Hem-Fir species combination in STAAD is as follows.

100 TO 150 TABLE ST Hem-Fir_SelStr_2X10_BM

D4.D.4.3 Northern Species

Designation of Northern species combination in STAAD is as follows.

100 TO 150 TABLE ST Northern_SelStr_3X12_BM

D4.D.4.4 Spruce-Pine-Fir

Designation of Spruce-Pine-Fir species combination in STAAD is as follows.

100 TO 150 TABLE ST SPF_SelStr_3X8_BM

D4.D.4.5 Glue Laminated timber

Designation of glue-laminated (glu-lam) timber in STAAD.Pro involves defining the material, specifying the dimensions, and associating the material with the member through the CONSTANTS command.

UNIT CM KN
DEFINE MATERIAL  START
ISOTROPIC GLT_D.Fir-L-24f-EX
E 51611.7
POISSON 0.15
DENSITY 2.5e-005
ALPHA 1.2e-011
END DEFINE MATERIAL
MEMBER PROPERTY  TIMBER CANADIAN
1 PRIS YD 12  ZD 6
CONSTANTS
MATERIAL GLT_D.Fir-L-24f-EX  MEMB 1

D4.D.4.6 Example

Sample input file to demonstrate usage of Canadian timber

STAAD PLANE EXAMPLE FOR DIMENSIONAL LUMBER
UNIT FEET POUND
JOINT COORDINATES
1 0 0 0; 2 6 0 0; 3 12 0 0; 4 18 0 0;
5 24 0 0; 6 6 3 0; 7 12 6 0; 8 18 3 0;
MEMBER INCIDENCES
1 1 2; 2 2 3; 3 3 4; 4 4 5; 5 1 6; 6 6 7; 7 7  8; 8 8 5;
9 2 6; 10 3 7; 11 4 8; 12 6 3; 13 3 8;
UNIT FEET POUND
DEFINE MATERIAL START
ISOTROPIC SPF_SelStr_4X10_BM
E 1224
POISSON 0.15
DENSITY 25
ALPHA 5.5e-006
END DEFINE MATERIAL
MEMBER PROPERTY tim can
1 TO 4 9 TO 11 TABLE ST SPF_SelStr_4X10_BM
5 TO 8 12 13 TABLE ST SPF_SelStr_4X10_BM
CONSTANTS
MATERIAL SPF_SelStr_4X10_BM memb 1 TO 4 9 TO  11
MATERIAL SPF_SelStr_4X10_BM memb 5 TO 8 12 13
PRINT MEMBER PROPERTIES
FINISH