Seismic behaviour of post-tensioned precast concrete beam–column connections
Hwang J.-H. Kim K.S. Choi S.-H. Kwon O.-S. Lee D.H.
May 2021ICE Publishing
Magazine of Concrete Research
2021#73Issue 9433 - 447 pp.
In a post-tensioned precast concrete beam–column connection, the precast beams are post-tensioned to ensure the integrity of the connection and to provide recentring characteristics when the connection is subjected to seismic loads. In this study, the post-tensioned precast concrete beam–column connections were tested under reverse-cyclic loading with the test variables of grout strength at the beam–column interface and prestressing stress of stands. The test results showed that the post-tensioned precast concrete beam–column connections have a seismic performance equivalent to that of a conventional reinforced concrete beam–column connection. When high prestress is applied, however, confinement reinforcement is required at the beam ends to secure sufficient deformation capacity without crushing of concrete. An analysis model for post-tensioned precast concrete beam–column connections is also proposed; the model considers the bond properties of prestressing strands, and provides good agreement with the experimental results.
Precast concrete , Prestressed concrete , Structural analysis
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Department of Civil and Mineral Engineering, University of Toronto, Toronto, Canada
Department of Architectural Engineering, University of Seoul, Seoul, South Korea
Department of Civil Engineering, Nazarbayev University, Astana, Kazakhstan
Department of Civil and Mineral Engineering
Department of Architectural Engineering
Department of Civil Engineering
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