Drilled shaft testing at Washington County segmental bridge and Hamilton-50 test site

"February 2000."; "June 2000"--Technical rept. documentation page.; "December 2000"--Cover.; Executive summary laid in.; Includes bibliographical references.; Final report.; Prepared in cooperation with the U.S. Dept. of Transportation, Federal Highway Administration and sponsored by the Ohio Dept. of Transportation under state job no.; Harvested from the web on 3/13/06A total of four lateral load tests on eight fully instrumented drilled shafts have been successfully carried out. The test data and analysis results have been submitted to ODOT structure office in a timely manner to allow ODOT engineers to implement these test results into design. Specifically, two load tests have been conducted at Putnam bridge site with the shafts diameter of 1.22-m (48-inch) and shaft length of 14-m and 9-m respectively. Also, two lateral load tests have been conducted at CLE-50 site with the shafts diameter of 1.067-m (42-inch) and shaft length of 5.48-m (1 8-ft), and 9.62-m (264) respectively. Test results included the load-displacement relationship at the shaft head, and strains and deflections along shaft length at different load levels. In addition to lateral load testing a new back-analysis method was employed to demonstrate the benefits of deriving the p-y relationship from the curve-fitting back-analysis techniques.A total of four lateral load tests on eight fully instrumented drilled shafts have been successfully carried out. The test data and analysis results have been submitted to ODOT structure office in a timely manner to allow ODOT engineers to implement these test results into design. Specifically, two load tests have been conducted at Putnam bridge site with the shafts diameter of 1.22-m (48-inch) and shaft length of 14-m and 9-m respectively. Also, two lateral load tests have been conducted at CLE-50 site with the shafts diameter of 1.067-m (42-inch) and shaft length of 5.48-m (1 8-ft), and 9.62-m (264) respectively. Test results included the load-displacement relationship at the shaft head, and strains and deflections along shaft length at different load levels. In addition to lateral load testing a new back-analysis method was employed to demonstrate the benefits of deriving the p-y relationship from the curve-fitting back-analysis techniques