Full-Scale Cyclic Lateral Load Testing of Reinforced Concrete Drilled Shaft-Column Kerop D. Janoyan Jonathan P. Stewart John W. Wallace Department of Civil Engineering University of California, Los Angeles

UCLA/Caltrans Shaft Test Project Shaft/Soil Gapping (1994 Northridge Eq.)

UCLA/Caltrans Shaft Test Project Response of Shaft/Column to Lateral Loading

UCLA/Caltrans Shaft Test Project Reinforcement Steel Cage Fabrication

UCLA/Caltrans Shaft Test Project Soil Pressure Cells 26 Cells Total

UCLA/Caltrans Shaft Test Project

Ongoing Research Evaluation of test results –Data reduction and evaluation –Evaluation of below ground line response –Determination of p-y curves FEM studies – extrapolation to other sites –Detailed soil testing conducted Bridge system studies –Response of multi-column bridge –Standard and near-fault ground motions

UCLA/Caltrans Shaft Test Project Deflected Shape from Survey and Inclinometer Data

UCLA/Caltrans Shaft Test Project Measured Load-Displacement