Effect of Self-Consolidating Concrete on Beam-Column Exterior Joints

Document Type : Research Article


1 iAssistant Professor, Ferdowsi University of Mashhad and, iiAzad University, Mashhad Branch, Mashhad, Iran

2 Professor, Ferdowsi University of Mashhad, Mashhad, Iran


In this research, behavior of exterior concrete beam-column joints made of normal concrete (NC) and self-consolidating concrete (SCC) is investigated. The variables include the type of beam longitudinal bar anchorage in joint, transverse reinforcement of joint and strength of concrete. Experimental and analytical investigation of joint behavior is carried out. In the experimental part, 10 semi-scale exterior beam-column joints were manufactured and subjected to a constant column axial load and beam quasi-static cyclic load. In the analytical part, the ABAQUS software is used for modeling and analyzing of test specimens. Based on the results, the experimental and analytical joint capacities are in good agreement. Results show that using self-consolidating concrete in joints, apart from easier concrete placement, can increase the workability and ductility of connection and result in a better bond with reinforcing bars. Also, by increasing the concrete strength, the failure mechanism of a connection may change from shear failure in joint to flexural failure in beam.


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