DISPLACEMENT-BASED SEISMIC DESIGN

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FRAMES 1.0 n=4: δ i = H / i H n H/H n n>4: δ = i 4 3 ⎛ ⋅ ⎜ ⎝ H H i n ⎞ ⎛ ⎟ ⋅ ⎜1 − ⎠ ⎝ Hi 4H n ⎞ ⎟ ⎠ Mode displ. 1.0 (Based on results of inelastic timehistory analysis. Note, in some cases it may be necessary to review the displacement profile after initial analysis) 56
CANTILEVER WALL <strong>DESIGN</strong> PROFILES: If roof drift is less than the code drift limit θ c , the design displacement profile is: ∆ i = ∆ yi + ∆ pi = ε y ⎛ H ⎞ ⎛ i y Hi m lw H + ε ⎜ − ⎟ ⎜φ − 2 2 1 ⎝ 3 n ⎠ ⎝ lw ⎟ ⎞ L ⎠ p H i If the code drift limit governs the roof drift, the design displacement profile is: ∆ i = ∆ yi + ( − ) y i y n H = 2 θ θ H ⎜1 ⎟ ⎜θc − Hi c yn i ε l w i ⎛ ⎜ − ⎝ H 3H n ⎞ ⎛ ⎟ + ⎜ ⎠ ⎝ ε H l w ⎟ ⎞ ⎠ 57
Page 1 and 2:
ISRAELI STRUCTURAL ENGINEERING CONF
Page 3 and 4:
WITHIN A PERFORMANCE-BASED ENVIRONM
Page 5 and 6: Concrete Bridge under Longitudinal
Page 7 and 8: STIFFNESS OF CONCRETE ELEMENTS: Sti
Page 9 and 10: Dimensionless Moment (M N /f'cD 3 )
Page 11 and 12: INTERDEPENDENCY OF STRENGTH AND STI
Page 13 and 14: BRIDGE WITH UNEQUAL COLUMN HEIGHTS
Page 15 and 16: CONCRETE FRAME DRIFT EQUATION θ y
Page 17 and 18: DIMENSIONLESS YIELD CURVATURES AND
Page 19 and 20: FRAME DUCTILITY LIMITS NOTE: CODES
Page 21 and 22: FORMULATION OF THE DIRECT DISPLACEM
Page 23 and 24: COMPARISON OF ELASTIC FORCE AND DIS
Page 25 and 26: Damping (%) 0.25 0.2 0.15 0.1 0.05
Page 27 and 28: ELEMENTS OF DDBD: Multi-storey Buil
Page 29 and 30: F F y βF y BASIC HYSTERESIS RULES
Page 31 and 32: 4 GENERAL FORM OF ELASTIC 5% DISPLA
Page 33 and 34: DESIGN DISPLACEMENT SPECTRA (4) •
Page 35 and 36: Spectral Displacement (mm) 2000 160
Page 37 and 38: INFLUENCE OF DAMPING AND DUCTILITY
Page 39 and 40: SCOPE OF RESEARCH AND BOOK The rese
Page 41 and 42: CHAPTER 5 FRAME BUILDINGS Considers
Page 43 and 44: CHAPTER 7 DUAL WALL/FRAME BUILDINGS
Page 45 and 46: Chapter 9: DUCTILE TIMBER STRUCTURE
Page 47 and 48: Isolator Isolated rigid structure B
Page 49 and 50: INELASTIC FORCE-DISPLACEMENT RESPON
Page 51 and 52: MDOF PLASTIC MECHANISMS 5 4 3 2 1 H
Page 53 and 54: DIRECT DISPLACEMEMENT-BASED DESIGN
Page 55: CRITICAL DISPLACEMENTS •Frames: n
Page 59 and 60: ELASTIC RESPONSE OF FRAMES The shap
Page 61 and 62: DRIFT-LIMITED DUCTILITY FOR WALLS M
Page 63 and 64: PLASTIC DISPLACEMENT OF CANTILEVER
Page 65 and 66: TORSIONAL RESPONSE OF WALL BUILDING
Page 67 and 68: COUPLING BEAM DRIFTS reinforcement
Page 69 and 70: STRUCTURAL WALL FAILURE Inadequate
Page 71 and 72: HIGHER MODE EFFECTS Two effects in
Page 73 and 74: 60 30 40 MMS THA MMS THA MMS THA He
Page 75 and 76: INFLUENCE OF SEISMIC INTENSITY ON D
Page 77: CONCLUSIONS DOES DDBD MAKE A DIFFER
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DISPLACEMENT-BASED SEISMIC DESIGN

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