Steel Plate Shear Wall Design - SEAoT

8/12/2012Typical Perforated Strip (Vian2005)S diag = 400 mmTypical Strip Analysis Results (ST1)At monitored strain e max = 20%, D = 100 mm (D/S diag = 0.25)DABAQUS S4 “Quadrant” Model2δ(a) Strip Mesh and Deformed Shape (Deformation Scale Factor = 4)L = 2000 mm½ Lt = 5 mmδ(b) Maximum In-Plane Principal Stress Contours½ S diag S diagD = variablenot actual mesh(c) Maximum In-Plane Principal Strain ContoursFLTB Model: Typical Panel ResultsAt monitored strain ε max = 20%, D = 200 mm (D/S diag = 0.471)FLTB ModelTotal Uniform Str rip Elongation, ε un (%)5.04.54.03.53.02.52.01.51.00.5Strip emax = 20% Panel emax = 20%Strip emax = 15% Panel emax = 15%Strip emax = 10% Panel emax = 10%Strip emax = 5% Panel emax = 5%Strip emax = 1% Panel emax = 1%0.00.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7Maximum In-Plane Principal Strain ContoursPerforation Ratio, D/SdiagShear Strength vs. Frame Drifttrength, Vy (kN)Total Shear St300025002000150010005000emax = 20%emax = 15%emax = 10%emax = 5%emax = 1%SolidD050 (D/Sdiag = 0.12)D100 (D/Sdiag = 0.24)D150 (D/Sdiag = 0.35)D200 (D/Sdiag = 0.47)D250 (D/Sdiag = 0.59)D300 (D/Sdiag = 0.71)Bare0.0 1.0 2.0 3.0 4.0 5.0Frame Drift, γInfill Shear Strength: RFModelVyp.perf / Vyp1.00.90.80.70.60.50.40.30.20.10.0Predicted (Eq. 4.3)γ = 5%γ = 4%γ = 3%γ = 2%γ = 1%Linear Reg.0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0D/SdiagV51.5%⎡ = 1−yp. perf ⎢ α⎣ S diagD ⎤⎥⋅V⎦correction factor: α = 0.7yp11