Post-tensioned Jointed Structures to Resist Lateral Loads: A Review

Abstract

This paper presents a comprehensive review of post-tensioned (PT) precast jointed systems as a resilient structural solution for resisting lateral loads. These systems offer enhanced seismic performance by combining self-centering behavior with controlled energy dissipation, thus minimizing residual displacements and structural damage. The review traces the historical evolution of PT systems applied to frames, columns, walls, and bridge components, highlighting experimental and analytical investigations over the past three decades. Special emphasis is placed on the role of initial prestressing force, energy dissipation reinforcement, and joint detailing in improving seismic resilience. The paper also explores fragility analyses that evaluate the probability of exceeding specific damage states under varying drift demands. Comparisons with conventional monolithic systems demonstrate the superior recentering and stiffness retention capabilities of PT joints. Challenges such as limited hysteretic energy dissipation, toe crushing, and compatibility with seismic code provisions are addressed through the integration of external dampers, steel jacketing, and hybrid joint designs. Additionally, recent innovations such as embedded damping cores, friction devices, and hybrid rocking-wall systems are examined for their potential to improve performance in moderate to high seismic zones. The review concludes with a critical discussion of international code provisions and identifies gaps in existing standards that hinder broader implementation. Recommendations are made to guide future research toward developing practical, codified solutions for PT systems with consistent seismic performance.