A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shaking Table Evaluation of Reinforced Concrete Bridge Columns Repaired Using Fiber-Reinforced Polymer Jackets
Effective, economical, and timely repair of RC bridges after a seismic event is crucial. Fiber-reinforced polymer (FRP) composite laminates are one of few options and have several advantages. The paper presents shaking table experimental investigation to evaluate the use of FRP for repairing RC bridge columns with circular cross sections. Two RC columns were tested in as-built configuration. Both tests had identical geometry and reinforcement details except for the spacing of the transverse bars. One column had closely spaced hoops satisfying code requirements, and the other had larger spacing, representing a shear-critical column. The test specimens were subjected to a series of horizontal and vertical excitations on a shaking table and experienced moderate to high damage. The damaged columns were subsequently repaired with unidirectional FRP composite laminates and subjected to the same set of earthquake excitations. The obtained experimental data showed that the repaired columns achieved higher strength and ductility with lower residual displacements compared with the as-built ones contributing to the resiliency of the bridge system. From this study, it is concluded that the used FRP composite laminates represent a viable solution for the repair of damaged RC bridge columns.
Shaking Table Evaluation of Reinforced Concrete Bridge Columns Repaired Using Fiber-Reinforced Polymer Jackets
Effective, economical, and timely repair of RC bridges after a seismic event is crucial. Fiber-reinforced polymer (FRP) composite laminates are one of few options and have several advantages. The paper presents shaking table experimental investigation to evaluate the use of FRP for repairing RC bridge columns with circular cross sections. Two RC columns were tested in as-built configuration. Both tests had identical geometry and reinforcement details except for the spacing of the transverse bars. One column had closely spaced hoops satisfying code requirements, and the other had larger spacing, representing a shear-critical column. The test specimens were subjected to a series of horizontal and vertical excitations on a shaking table and experienced moderate to high damage. The damaged columns were subsequently repaired with unidirectional FRP composite laminates and subjected to the same set of earthquake excitations. The obtained experimental data showed that the repaired columns achieved higher strength and ductility with lower residual displacements compared with the as-built ones contributing to the resiliency of the bridge system. From this study, it is concluded that the used FRP composite laminates represent a viable solution for the repair of damaged RC bridge columns.
Shaking Table Evaluation of Reinforced Concrete Bridge Columns Repaired Using Fiber-Reinforced Polymer Jackets
Kumar, Pardeep (author) / Mosalam, Khalid M. (author)
2015-05-12
Article (Journal)
Electronic Resource
Unknown
| British Library Online Contents | 2015
Reinforced Concrete Bridge Columns Repaired with Fiber Reinforced Polymer Jackets
| British Library Conference Proceedings | 2014