A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Evaluation of Post-Tensioned Precast Concrete Coupling Beams
This paper presents the results from eight half-scale experiments of unbonded post-tensioned precast concrete coupling beams under reversed-cyclic lateral loading. Each test specimen includes a coupling beam and the adjacent concrete wall pier regions at a floor level. Under lateral loads, the nonlinear displacements of unbonded post-tensioned coupling beams are governed by the opening of gaps at the beam ends. Steel top and seat angles are used at the beam-to-wall joints to yield and provide energy dissipation. The test parameters include the beam post-tensioning tendon area and initial stress, initial beam concrete axial stress, angle strength, and beam depth. The results demonstrate the lateral stiffness, strength, and ductility of the test specimens under cyclic loading, with considerable energy dissipation concentrated in the angles. It is shown that the residual displacements upon unloading of the specimens are small due to the restoring effect of the post-tensioning force.
Experimental Evaluation of Post-Tensioned Precast Concrete Coupling Beams
This paper presents the results from eight half-scale experiments of unbonded post-tensioned precast concrete coupling beams under reversed-cyclic lateral loading. Each test specimen includes a coupling beam and the adjacent concrete wall pier regions at a floor level. Under lateral loads, the nonlinear displacements of unbonded post-tensioned coupling beams are governed by the opening of gaps at the beam ends. Steel top and seat angles are used at the beam-to-wall joints to yield and provide energy dissipation. The test parameters include the beam post-tensioning tendon area and initial stress, initial beam concrete axial stress, angle strength, and beam depth. The results demonstrate the lateral stiffness, strength, and ductility of the test specimens under cyclic loading, with considerable energy dissipation concentrated in the angles. It is shown that the residual displacements upon unloading of the specimens are small due to the restoring effect of the post-tensioning force.
Experimental Evaluation of Post-Tensioned Precast Concrete Coupling Beams
Weldon, Brad D. (author) / Kurama, Yahya C. (author)
Structures Congress 2009 ; 2009 ; Austin, Texas, United States
Structures Congress 2009 ; 1-10
2009-04-29
Conference paper
Electronic Resource
English
Experimental Evaluation of Post-Tensioned Precast Concrete Coupling Beams
| British Library Conference Proceedings | 2009
Unbonded Post-Tensioned Precast Concrete Coupling Beams: An Experimental Evaluation
| British Library Conference Proceedings | 2007
Coupling of Concrete Walls Using Post-Tensioned Precast Concrete Beams
| British Library Conference Proceedings | 2005