Assessment And Application Of Direct Displacement Based Design For Dual Framewall Reinforced Concrete Buildings

Assessment and Application of Direct Displacement Based Design for Frame –Wall ReinforcedrnConcrete BuildingsrnEskedar KassahunrnAddis Ababa University, 2016rnIn this thesis work Direct Displacement Based Design method is assessed in dual frame-wallrnreinforced concrete building. Traditional forced based design method compared with this methodrnapplying to different case studies. The effect of frame shear ratio, base shear shared by the frame,rnwhen DDBD design method is applied is studied in detail by taking frame base shear ratio 25%,rn40% and 60%, in terms of base shear and displacement of the building.rnAlso the effect of presence and absence of connected link beam which directly has an effect onrnmoment profile of the wall is studied. The effectiveness of the method has been tested byrndesigning a set of case studies. Dual frame-wall building with story 4, 8, 12, 16 and 20 is takenrnas case studies.rnFrom the study the base shear calculated using DDBD is less than FBD in all case studiesrnconsidered. In low rise building, with storey 4 in this study, the base shear increases as framernshear ratio increase. However in building with higher stories the base shear decrease as framernshear ratio increases. Similarly the storey shear obtained from DDBD is less than FBD in all casernstudies. Considering building with and without link beam the moment profile with link beam hasrnlow moment than that beam without link beam in all case studies.

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