1997 · 10 citations · 0 references
EngineeringCivil EngineeringEarthquake EngineeringSeismic DesignStructural EngineeringBridge DesignStructural AssessmentStructural DesignStructural MechanicsStructural Performance AnalysisStructural TestingColumnsDesign CodesJacketing SystemsSeismic PerformanceSeismic Performance Of BridgesShear BehaviorShear FailureShear Strength Analysis
Although various empirical and theoretical shear design equations have been proposed for concrete columns, there still exists a substantial disagreement in the shear strength calculated with different design codes and still it is difficult to provide a uniform margin of safety for shear failure. One of the reasons of uncertainty in predicting shear strength of large scale members is size effect. The first purpose of this project was to investigate the seismic performance of an built full size bridge column, in order to evaluate the conventional shear design equations with specific attention dedicated to the size effect. The second goal was to investigate the effectiveness of fiberglass jacketing, as a repair technique, applied to a full scale column. This project was completed by a series of tests of 1/3-scale units, currently in the data analysis phase.