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Uv޾ O?0rT ?{ΎyMi7 q} ⌇XvRIENDB`:(P0 / 0DTimes New RomanttX| 0DArialNew RomanttX| 0 DSymbolew RomanttX| 0 A .@  @@``  @n?" dd@  @@`` @/Te0EG39k7(7C"-;9JJ#*6m:T,'%C|,I^37hQ61D-A({|gm\C2"-e,,!_-,b-[i%dg/DEFFJDTN/BZ}M,'%C:CE(EEIOSULa('0RC'9:HC(PIQ:('0HC(2VCDH OE (Z[tHZHHsC7mT^+^CmmD6mC**7cQp55VCFmC ^w%XL? :)ADs:$$$$p[\9w9S7:PeZRlZprs~$ +Rf:L)HAs5J*rm)'C6;?ONN:<HVCD:^w?F;{VCD^\.XVCDFOENM<+ xpWI5C:G?M_5aI %-;B.q;;34qr5:X;><UE_5gHL]z[z?MVYVZ[\]^_`abcdefghijklmnopqrstuvwxyz$$b$H\n()Y$$$$$b$X0q:x Ys AA1? [uuufrf@8Ng4ldld  04ppp g4BdBd, 0D2pp  <4BdBd@l 0t ʚ;ʚ;<4dddd@l 0@0___PPT10 `___PPT9B/ 0&? %O =/Partially Post-Tensioned Precast Concrete Walls006\Yahya C. (Gino) Kurama Assistant Professor University of Notre Dame Notre Dame, Indiana, USA]]d$POST-TENSIONED PRECAST CONCRETE WALL%%BEHAVIOR UNDER LATERAL LOADSgHYSTERETIC BEHAVIOR  VDISPLACED SHAPEZ  ENERGY DISSIPATION&PARTIALLY POST-TENSIONED PRECAST FRAME''q OBJECTIVES wInvestigate precast wall systems with PT steel and mild steel Develop seismic design approach Evaluate seismic responsexx  fPrototype walls and expected behavior Seismic design approach and evaluation Summary and conclusions 0g'?) wFour fully post-tensioned walls Four walls with only mild steel (emulative walls) Four partially post-tensioned walls  xw"PLAN LAYOUT OF PROTOTYPE BUILDINGS##2FULLY POST-TENSIONED WALLSFULLY POST-TENSIONED WALLS4EMULATIVE WALLS5PARTIALLY POST-TENSIONED WALLS!ANALYTICAL WALL MODEL#WALL BEHAVIOR UNDER MONOTONIC LOADS$$-"SIX STORY WALLS IN HIGH SEISMICITY##6'NORMALIZED INELASTIC ENERGY DISSIPATION((7'NORMALIZED INELASTIC ENERGY DISSIPATION((;DYNAMIC RESPONSE<REDUCTION IN MAXIMUM ROOF DRIFT >"REDUCTION IN NUMBER OF DRIFT PEAKS bPrototype walls Expected behavior Seismic design approach and evaluation Summary and conclusions <c#'FIRST MODE REPRESENTATION SDOF/MDOF PEAK DISPLACEMENTDUCTILITY DEMANDNONLINEAR DEMAND SPECTRADDESIGN OBJECTIVES  SURVIVAL LEVEL##WALLS HW1 AND HW2WALL HW1 WALL WH2 ~ CONCLUSIONS OEnergy Dissipation Mild steel reinforcement yielding in tension and compression@ =f3=iNational Science Foundation CAREER-Program CMS 98-74872 Program Directors Dr. S. 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