Applies To | |||
Product(s): | STAAD.Pro | ||
Version(s): | ALL | ||
Environment: | ALL | ||
Area: | Modeling | ||
Subarea: | |||
Original Author: | Phil Riegel, Bentley Technical Support Group | ||
I am getting the following warning message when opening my model:
Warning, Entity # has already had a material assigned. The last assigned material will be used in the analysis.
Can you please suggest what could be causing this ?
This warning is reported upon opening a STAAD model if it contains one or more members that have been assigned multiple materials. For example, consider the following excerpt from the input command file of a model:
DEFINE MATERIAL START
ISOTROPIC STEEL
E 29000
POISSON 0.3
DENSITY 0.000283
ALPHA 6e-06
DAMP 0.03
TYPE STEEL
STRENGTH FY 36 FU 58 RY 1.5 RT 1.2
ISOTROPIC CONCRETE
E 3150
POISSON 0.17
DENSITY 8.68e-05
ALPHA 5.5e-06
DAMP 0.05
G 1346.15
TYPE CONCRETE
STRENGTH FCU 4
END DEFINE MATERIAL
CONSTANTS
MATERIAL STEEL MEMB 1 TO 16 17 18 TO 23
MATERIAL CONCRETE MEMB 17
As you can see, member # 17 has been assigned both STEEL and CONCRETE material properties. Correspondingly, when this model is opened the following warning message appears:
To resolve this, you must edit the command file so no members are assigned more than one material. In this example you could accomplish this by removing member # 17 from the STEEL material assignment as shown below:
DEFINE MATERIAL START
ISOTROPIC STEEL
E 29000
POISSON 0.3
DENSITY 0.000283
ALPHA 6e-06
DAMP 0.03
TYPE STEEL
STRENGTH FY 36 FU 58 RY 1.5 RT 1.2
ISOTROPIC CONCRETE
E 3150
POISSON 0.17
DENSITY 8.68e-05
ALPHA 5.5e-06
DAMP 0.05
G 1346.15
TYPE CONCRETE
STRENGTH FCU 4
END DEFINE MATERIAL
CONSTANTS
MATERIAL STEEL MEMB 1 TO 16 18 TO 23
MATERIAL CONCRETE MEMB 17
Once this is done, the warning message will no longer be reported when opening the model.