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Seismic Performance Of Mechanically Spliced Bridge Columns Through Analytical Studies, Mathew Ray Lavoy
Seismic Performance Of Mechanically Spliced Bridge Columns Through Analytical Studies, Mathew Ray Lavoy
Electronic Theses and Dissertations
Reinforcement continuity in concrete members is traditionally achieved through lap splicing. Mechanical bar splices are an alternative to traditional lap splices. Mechanical bar splices utilize mechanical devices known as bar coupler to connect the ends of reinforcing bars. Bar couplers are common in accelerated bridge construction applications at non-critical members but are not allowed in the plastic hinge region of bridge columns probably due to a lack of knowledge on how they affect seismic performance of columns. A comprehensive analytical study was carried out to determine how bar couplers used at the base of bridge columns affect: 1) column lateral …
Application Of New Materials And Innovative Detailing For Reinforced Concrete Structures, Ishtiaque Ahmed Tuhin
Application Of New Materials And Innovative Detailing For Reinforced Concrete Structures, Ishtiaque Ahmed Tuhin
Electronic Theses and Dissertations
Confinement enhances mechanical properties of concrete sections specifically its strain capacity thus results is higher displacement capacity for reinforced concrete members. Even though the behavior of concrete confined with external jackets has been extensively investigated in previous studies, the use of rubber-based material as an external confinement is new, and was investigated for the first time in the present study. Thirty concrete cylinders were tested under uniaxial compression to investigate mechanical properties of rubber confined concrete. It was found that rubber does not increase the strength of confined concrete. However, the strain capacity of rubber confined concrete was more than …