Seismic behaviour of post-tensioned concrete shear wall: a review.

Resumo

Shearwallsarespecificallymeanttowithstandlateralforcesexertedbyeitherwindorearthquakeloadson astructure.Duetotheirsuperiorstrengthandstiffness,shearwallshavebeenanintegralfeatureofmid-riseandhigh-rise structures over the past two decades. Various studies have been performed in this field. Usage of post-tensioned tendonsinthetraditionalshearwallisoneofthemajoradvancementsinrecenttimessoastoincreasethestiffnessand reduce the damage incurred by destructive earthquakes. The key advantage of post-tensioned shear walls is the potential to re-centre after a devastating earthquake which is lacking in conventional reinforced concrete (RC) shear wallsthatrelyonyieldingcreatinglargedeformations.Moreover,comparedwithconventionalshearwallconstruction, post-tensioned shear walls can reduce the use of vertical mild steel reinforcement. This results in materials being used more effectively and eliminates congestion. This paper seeks to review and analyze the research studies based on post-tensioned shear wall focusing on works published within the last decade. Firstly, the benefits of using post-tensioned shear walls in seismically active areas are illustrated. The behaviour and parameters controlling the performance of post-tensioned shear walls are then studied. A critical study of the factors responsible for the performance of post-tensioned shear wall is the primary objective of thisreview