Quantifying Effect of Post-Tensioned Bars for Precast Concrete Shear Walls

A hybrid concrete wall is made up of a traditional reinforced concrete wall with post-tensioned technology. Recent research has shown that post-tensioned (PT) reinforced concrete shear walls have a wide range of advantages when it comes to resisting lateral forces and lateral moments caused by earthquake loading. To explore the PT reinforced concrete wall behavior subjected to seismic load, the concrete models were augmented with various material models, including the KCC, CDP, and Winfrith models for a PT 2D wall under pushover analysis. To ensure that the overall behavior forecast was qualitatively acceptable, the models' performance was compared to experimental findings. Then, the post-tensioned modeling approach was implemented with the 3D wall in order to predict structural responses of the PT 3D wall. The well-validated finite element models were ultilized to estimate the effects of the post-tensioned bars on lateral resisting capacities of the precast concrete shear wall.

Automated summary

A hybrid concrete wall, consisting of traditional reinforced concrete wall and post-tensioned technology, has advantages in resisting lateral forces caused by earthquake loading. By incorporating various material models, the behavior of the post-tensioned reinforced concrete wall under seismic load can be explored. The effects of post-tensioned bars on the lateral resisting capacities of precast concrete shear wall were estimated using validated finite element models.