Strength Evaluation of Interior Slab-Column Connections

Document Type



Test data for interior flat-plate slab-column connections subjected to concentric gravity load and combined gravity and lateral loads were collected. The connection strength was evaluated using ACI Code design equations. From test data, equations for connection gravity load capacity as a function of concrete strength, slab reinforcement ratio and yield strength, and the ratio of column size to slab effective depth were developed. A model for strength of connections subjected to lateral load using a beam analogy concept that includes resistance from flexure, shear, and torsion at the critical section is proposed.


Concrete slabs; Flat plate; Lateral strength; Reinforced concrete; Reinforced concrete construction; Slab-column connection; Two-way shear strength


Civil and Environmental Engineering | Construction Engineering and Management | Materials Science and Engineering | Structural Engineering | Structural Materials


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