Determination of the Shear Force in RC Interior Beam-Column Connections

The calculation of frame structures requires special attention when modeling the beam-column connection. Often the joint is assumed to be rigid, but this does not correspond to the real behavior of the beam-column connection, as well as the real response of frame structures. The leading countries in seismic research (USA, New Zealand, Japan) have uniform procedures introduced in their seismic codes for studying the moment resisting frame. However, regarding the determination of the shear force in the beam-column connection, there is still a discrepancy in how it is determined. In the present work, a mathematical model is proposed for the analytical determination of the shear force. The emerging large deformations in the beam, which could be realized during earthquake, have been taken into account. The material is elastic. The obtained values are compared with results determined by mathematical procedures proposed in other literature sources.