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Structural performance testing of composite-jacketed bridge columns under cyclic loading
A structural assessment and qualification testing program, coupled with a material testing program, were conducted to verify the performance of bridge columns retrofitted with advanced composite jackets. Structural performance tests included the evaluation of lap splice enhancement and shear enhancement of circular and rectangular columns. Twenty-seven column samples, retrofitted by either carbon fiber or E-glass jackets, were tested under lateral cyclic loading. For all circular columns, whether intended for lap splice or shear enhancements, and for only those rectangular columns retrofitted for shear enhancement, tests have demonstrated a significant improvement of the column ductility in comparison with as-built column samples. Material durability testing program was also performed to demonstrate the ability of composite systems to withstand variety of climatic and unnatural exposure conditions. Carbon/epoxy systems showed excellent durability, but E-glass/polymer systems were somewhat susceptible after exposure to moist environments.
Structural performance testing of composite-jacketed bridge columns under cyclic loading
A structural assessment and qualification testing program, coupled with a material testing program, were conducted to verify the performance of bridge columns retrofitted with advanced composite jackets. Structural performance tests included the evaluation of lap splice enhancement and shear enhancement of circular and rectangular columns. Twenty-seven column samples, retrofitted by either carbon fiber or E-glass jackets, were tested under lateral cyclic loading. For all circular columns, whether intended for lap splice or shear enhancements, and for only those rectangular columns retrofitted for shear enhancement, tests have demonstrated a significant improvement of the column ductility in comparison with as-built column samples. Material durability testing program was also performed to demonstrate the ability of composite systems to withstand variety of climatic and unnatural exposure conditions. Carbon/epoxy systems showed excellent durability, but E-glass/polymer systems were somewhat susceptible after exposure to moist environments.
Structural performance testing of composite-jacketed bridge columns under cyclic loading
Haroun, M.A. (author) / Feng, M.Q. (author)
1999
10 Seiten, 4 Quellen
Conference paper
English
Structural Performance Testing of Composite-Jacketed Bridge Columns under Cyclic Loading
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