Fiber-Reinforced Plastic Jackets for Ductility Enhancement of Reinforced Concrete Bridge Columns with Poor Lap-Splice Detailing

This paper presents an inclusive testing program conducted on scaled models of reinforced concrete (RC) bridge columns with insufficient lap-splice length. Thirteen half-scale circular and square column samples were tested in flexure under lateral cyclic loading. Three columns were tested in the as-built configuration whereas ten samples were tested after being retrofitted with different composite-jacket systems. A brittle failure was observed in the as-built samples due to bond deterioration of the lap-spliced longitudinal reinforcement. The jacketed circular columns demonstrated a significant improvement in their cyclic performance. Yet, tests conducted on square jacketed columns showed a limited improvement in clamping on the lap-splice region and for enhancing the ductility of the column.

Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
Authors:
- Haroun, Medhat A
- Elsanadedy, Hussein M
Publication Date: 2005-11

Language

English

Media Info

Media Type: Print
Features: Figures; References; Tables;
Pagination: pp 749-757
Serial:
- Journal of Bridge Engineering
- Volume: 10
- Issue Number: 6
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

TRT Terms: Bond strength (Materials); Brittleness; Columns; Composite materials; Cyclic tests; Ductility; Fiber reinforced plastics; Flexure; Jacketing (Strengthening); Lap joints; Load tests; Reinforced concrete bridges; Reinforcement (Engineering); Repeated loads; Retrofitting; Scale models; Splicing
Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I35: Miscellaneous Materials;

Filing Info

Accession Number: 01010533
Record Type: Publication
Files: TRIS
Created Date: Nov 6 2005 10:16PM