ON THE EFFECTS OF CIRCULAR BOLT PATTERNS ON THE ...

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Moment (kip.ft) Moment (kip.ft) Moment (kip.ft) a) Tp½-Bd1¼ 1250 750 250 ‐250 ‐250 ‐4% ‐3% ‐2% ‐1% 0% 1% 2% 3% 4% ‐750 ‐1250 b) Tp1-Bd1¼ 2000 1500 1000 500 0 Drift (%) ‐4% ‐3% ‐2% ‐1% 0% 1% 2% 3% 4% ‐500 ‐900 ‐1000 ‐1500 ‐2000 c) Tp1½-Bd1¼ 2000 1500 1000 500 0 ‐1000 ‐1500 ‐2000 ---- Tp½-Bd1¼-CIR Tp½-Bd1¼-SQR ---- Tp1-Bd1¼-CIR ___ Tp1-Bd1¼- ---- Tp1½-Bd1¼-CIR ___ Tp1½-Bd1¼- SQR Drift (%) ‐4% ‐3% ‐2% ‐1% 0% 1% 2% 3% 4% ‐500 ‐900 Drift (%) Figure 6-1 Comparison Of The Hysteresis Of The Connections With Circular And Square Bolt Pattern, Bd=1¼ in. 113 1750 1250 750 250 ‐750 ‐1250 ‐1750 2700 1800 900 0 ‐1800 ‐2700 900 0 (kN.m) (kN.m) 2700 1800 (kN.m) ‐1800 ‐2700
Moment (kip.ft) 900 450 0 ‐450 ‐900 ‐4% ‐3% ‐2% ‐1% 0% 1% 2% 3% 4% b) 1250 Tp1½-Bd¾ Moment (kip.ft) a) Tp¾-Bd¾ 750 250 Drift (%) ‐4% ‐3% ‐2% ‐1% 0% 1% 2% 3% 4% ‐250 ‐250 ‐750 ‐1250 ---- Tp¾-Bd¾-CIR ---- Tp¾-Bd¾-CIR ___ Tp¾-Bd¾- ___ Tp¾-Bd¾- ---- Tp1½-Bd¾CIR ___ Tp1½-Bd¾-SQR Drift (%) Figure 6-2 Comparison Of The Hysteresis Of The Connections With Circular And Square Bolt Pattern, Bd=¾ in. 114 1200 800 400 0 ‐400 ‐800 ‐1200 1750 1250 750 250 ‐750 ‐1250 ‐1750 (kN.m) (kN. (kN.m)
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ON THE EFFECTS OF CIRCULAR BOLT PAT
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ACKNOWLEDGMENTS I would like to exp
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elements during monotonic and cycli
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3.2.3.1.2 Surface Preparation .....
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APPENDIX ..........................
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3-15 Configuration Of Extended End-
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5-10 Comparison Of The Predicted Vs
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6-18 End-Plate Deformation Of (a) T
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6-4 Energy Dissipation Percentage V
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(a) (b) (c) . Figure 1-1 Failure Mo
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noticeable. Among those, Asteneh-as
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phenomenon will decrease the bolt-f
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Douty and McGuire [3] (1965) conduc
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Tsai and Popov [33] performed three
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plate moment connection can be use
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during moderate earthquake excitati
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Gebbeken et al.[56] used the finite
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load overcomes the pretension force
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Figure 2-3 Tension Angle Free-Body
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CHAPTER 3 3. EXPERIMENTAL INVESTIGA
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compared with results collected fro
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Figure 3-5 Deformed Shape Of The T-
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head. Two varnished copper wires we
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Figure 3-8 Schematic Drawing Of The
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3.2.4 Test Setup The 400K compressi
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The instrumented bolts were connect
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Figure 3-14 Applied Force Vs. Flang
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describing the configuration of the
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column flange by one row of ¾ in.
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prevent out-of-plane buckling of th
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Figure 3-20(c) shows the test instr
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Element Washer Bolt Line Number Tab
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modulus and the rate at which the h
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(a) (b) (c) Figure 4-3 Contacts In
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Bolt Force (kip) 0 2 4 (mm) 6 8 Fig
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It can be seen from the results pre
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a very early stage of loading with
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Moment (kip.ft) 300 200 100 0 -100
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Figure 4-17 Failure Of Bolts In The
Page 79 and 80: geometrical configuration of bolt h
Page 81 and 82: Figure 4-23 Failure Of The Angle Du
Page 83 and 84: CHAPTER 5 5. DEVELOPMENT OF HYSTERE
Page 85 and 86: The schematic comparison of the pro
Page 87 and 88: Bolt-4 Bolt-5 Bolt-3 End-Plate Bolt
Page 89 and 90: The analyses were conducted by appl
Page 91 and 92: Figure 5-5 Schematic Drawing Of The
Page 93 and 94: F G Figure 5-6 Tri-Linear Hysteresi
Page 95 and 96: simulate the hysteresis characteris
Page 97: Table 5-5 Continued 80
Page 104: Table 5-7 Summary Of The Results An
Page 109 and 110: Section 5-6-3-4 Figure 5-7 Section
Page 111 and 112: These techniques yield information
Page 113 and 114: 2 A value of R 1 implies that S is
Page 115 and 116: (kip.ft) Figure 5-9 Comparison Of T
Page 117 and 118: M e . .t . .A . .S . (5-17) The p
Page 119 and 120: Figure 5-16 Comparison Of The Predi
Page 121 and 122: (ksi) Figure 5-19 Comparison Of The
Page 123 and 124: (ksi) Figure 5-22 Comparison Of The
Page 125 and 126: CHAPTER 6 6. DISCUSSION OF THE RESU
Page 127 and 128: Table 6-2 Energy Dissipation Percen
Page 129: espectively. While in similar model
Page 133 and 134: Models Tp1½-Bd½-d30, Tp1-Bd½-d30
Page 135 and 136: a) Tp½-Bd1¼-d30-CIR 140 Bolt Forc
Page 137 and 138: a) Tp1½-Bd1¼-d30-CIR 140 Bolt For
Page 139 and 140: a) Tp1½-Bd½-d30-CIR 25 Bolt Force
Page 141 and 142: This phenomenon is attributed to th
Page 143 and 144: 6.5 Bolt-Force Variation Under Cycl
Page 145 and 146: a) Tp1.0-Bd1¼-d30- 140 Bolt Force
Page 147 and 148: a) Tp½-Bd½-d30- 25 Bolt Force (ki
Page 149 and 150: a) Tp¾-Bd¾-d30- 60 Bolt Force (ki
Page 151 and 152: configurations of the finite elemen
Page 153 and 154: Circular Bolt Pattern Square Bolt P
Page 155 and 156: 0.15 0.3 0.45 0.6 0.75 (a) (b) Figu
Page 157 and 158: initial stiffness of the connection
Page 159 and 160: parameters is recommended to study
Page 161 and 162: The relation between applied torque
Page 163 and 164: 146 Table B-1 Test Matrix of the Co
Page 165 and 166: Table B-3Test Matrix of the Connect
Page 167 and 168: The hysteresis results obtained fro
Page 169 and 170: Moment (kip.ft) 1500 1000 500 0 -2%
Page 171 and 172: Moment (kip.ft) 1500 1000 500 0 ‐
Page 173 and 174: Moment (kip.ft) 1500 1000 500 0 ‐
Page 175 and 176: Moment (kip.ft) Figure C-22 Compari
Page 177 and 178: Moment (kip.ft) ‐2% ‐1% 0% 1% 2
Page 179 and 180: Moment (kip.ft) Figure C-34 Compari
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Moment (kip.ft) Figure C-40 Compari
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) 1000 750 500 250 0
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Moment (kip.ft) 2000 1500 1000 500
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Moment (kip.ft) 1500 1000 500 0 ‐
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The hysteresis results obtained fro
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Moment (kip.ft) 2000 1500 1000 500
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) Figure D-34 Compari
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Moment (kip.ft) 900 600 300 0 -2% -
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) ‐1.5% ‐1.0% ‐
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Moment (kip.ft) 1500 1000 500 0 ‐
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Moment (kip.ft) 1500 1000 500 0 ‐
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The simulated tri-linear hysteresis
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Moment (kip.ft) 1500 1000 500 0 -2%
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) 1500 1000 500 0 -2%
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) Figure E-34 Compari
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Moment (kip.ft) 900 600 300 0 -2% -
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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Moment (kip.ft) Figure E-58 Compari
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Moment (kip.ft) -2% -1% 0% 1% 2% -2
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Moment (kip.ft) -2% -1% 0% 1% 2% -6
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Moment (kip.ft) 2000 1500 1000 500
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Moment (kip.ft) -2% -1% 0% 1% 2% -5
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The statistical parameters used dur
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[11] Morrison, S. J., Astaneh-Asl,
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[33] Tsai K. C., Popov E. P. (1990)
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[56] Gebbeken, N., Rothert, H., and
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BIOGRAGHICAL INFORMATION Roozbeh Ki
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