Dear,
If I have combined effects along with the torsion, as per ASIC 316 -10, for HSS member it should use eq. H3-6. Insted it only uses H.1 (no combined effects).
How to activate check of HSS as per eq. H3-6?
Regards,
As per AISC 360-10 H3.2, eq. H3-6 should be checked only when required torsional strength, Tr, exceeds 20% of the available torsional strength, Tc. In your model, torsional force is much lower than torsional strength of the member, so H3-6 is not checked. If you would increase the torsional load, H3-6 check would be reported in the Output file.
Answer Verified By: Ivan Hadži Bošković
STAAD SPACESTART JOB INFORMATIONENGINEER DATEEND JOB INFORMATIONINPUT WIDTH 79UNIT METER KNJOINT COORDINATES1 0 0 0; 2 5 0 0; 3 10 0 0;MEMBER INCIDENCES1 1 2; 2 2 3;DEFINE MATERIAL STARTISOTROPIC STEELE 2.05e+08POISSON 0.3DENSITY 76.8195ALPHA 1.2e-05DAMP 0.03TYPE STEELSTRENGTH RY 1.5 RT 1.2END DEFINE MATERIALMEMBER PROPERTY BRITISH1 2 TABLE ST TUB55055036.0CONSTANTSMATERIAL STEEL ALLSUPPORTS3 FIXED BUT FX MX MY MZ1 FIXEDLOAD 1 LOADTYPE None TITLE LOAD CASE 1JOINT LOAD3 FX 100 MX 100PERFORM ANALYSISPARAMETER 1CODE AISC UNIFIED 2010METHOD LRFDTRACK 2 ALLCHECK CODE ALLFINISH
Could you please attach the model?