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Experimental Investigation on The Transform The Simply Supported Girders to Continuous Girder by Using The UHPC Cast in Place Joint by Mustafa Kareem Moosa; Ammar Yaser Ali is a Engineering article available to read on EtoBox.

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Many bridges are made from multi-simple spans and can be enhanced by transforming into a continuous girder. An experimental program investigated the transformation of the simply supported girder to a continuous girder using the ultra-high performance concrete (UHPC) joint. The transformation process was presented by arranging a negative reinforcement and cast in place the deck with joints to ensure the continuity of the segment through the interior support. This study presents the material properties, preparation of specimens, the cast of normal strength concrete (NSC) and UHPC, and tested the girder with a point load. The parameters of this study included the support condition, type of joint, hybridization of top reinforcement, and type of load (monotonic and cyclic load). The results showed that the continuous support increased the load-carrying capacity by about 21.4% and reduced the service mid-span deflection by about 24.3% concerning simply supported having the same clear span and section geometry. The effect of using the shear key and carbon fiber reinforced polymer CFRP rebar was presented. This study discussed failure mode, cracking propagation, initial stiffness, and flex

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Author

Mustafa Kareem Moosa; Ammar Yaser Ali

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Engineering (Physical Sciences)