An experimental investigation was carried out to compare the performance of repaired prestressed bridge girders containing spliced prestressing strands. A field-impact-damaged girder was removed from a railroad bridge structure and utilized for investigation of strand splice repairs. All of the splices investigated provide a means of tensioning the repaired strand or strands. In a series of nondestructive load tests, four different splices were employed to repair intentionally damaged strands. Comparison was made between four strand splices used to repair damaged strands. Overall structura l performance as well as ease and reliability of splice installation were compared. Results of the study indicate that certain types of splices can be installed more easily and reliably than others and that splice repairs reduce the level of stress experienced by undamaged strands.
