Slide 2-8: Verification of FE model (global & local)

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Presentation transcript:

Slide 2-8: Verification of FE model (global & local) Slide 9-19: Parametric Study Slide 20: Animation

Model Configuration and Boundary Condition

Loading History and Force-Displacement Plot for HSS5

Brace out-of-plane Displacement Comparison for HSS5

Local Behaviors 1 Brace Buckling & North East Gusset Plate Yielding

Local Behaviors 2 Moderate Yielding on East Column Inner Flange & Moderate Yielding and Bending on West Column

Local Behaviors 3 Moderate Yielding on South Beam

Gusset Plate out-of-plane Displacement Comparison for HSS5 (9 & 8)

Parameters GP size GP thickness (in) clearance requirement note GP size GP thickness (in) clearance requirement note HSS GP3/8 25x21 3/8 6t reference HSS 3t 23.5x19.5 3t 3t clearance HSS 12t 28x24 12t 12t clearance HSS 15°T 15° tapered 15° tapered gusset plate HSS 25°T 25° tapered 25° tapered gusset plate HSS ST beam-to-column connection (w/o tapered) HSS ST15°T (w/ 15° tapered) HSS GP7/8 7/8 7/8” gusset plate HSS GP3/8LB 3/8” gusset plate & large beam HSS GP3/8LC large column HSS GP3/8LBLC large beam and column HSS GP7/8LBCP 7/8” gusset plate & large beam & cover plate

Parameters

Stresses on North East Gusset Plate -Clearance Requirement HSS GP3/8 HSS 3t HSS 12t

Stresses on North East Gusset Plate -tapered plate HSS GP3/8 HSS 15°T Stresses on North East Gusset Plate -tapered plate HSS GP3/8 HSS 15°T HSS 25°T

Stresses on North East Gusset Plate -alternate beam-to-column connection HSS GP3/8 HSS ST HSS ST15°T

Stresses on South West Gusset Plate -gusset plate thickness HSS GP3/8 Stresses on South West Gusset Plate -gusset plate thickness HSS GP3/8 HSS GP7/8

Stresses on North East Gusset Plate -frame size HSS GP3/8 Stresses on North East Gusset Plate -frame size HSS GP3/8 HSS GP3/8LB HSS GP3/8LC HSS GP3/8LBLC

Brace-to-Gusset Plate Connection

Stresses on Brace-to-Gusset Plate Connection -cover plate HSS GP7/8LB Stresses on Brace-to-Gusset Plate Connection -cover plate HSS GP7/8LB HSS GP7/8LBCP

Accumulative Equivalent Plastic Strains at southeast corner of northeast gusset plate (NECG)

Accumulative Equivalent Plastic Strains at southeast corner of northeast gusset plate (NECG)

Animation