Numerical Analysis of Beam-to-Column Connection Behavior with Reduced Beam Section and Bolted End Plate

Reduced Beam Section (RBS) connections and Bolted Unstiffened End Plate (BUEEP) connections are two types of connections mentioned in the tenth chapter of the National Building Regulations of Iran, under the pre-qualified moment connections section. In this paper, by proposing a connection that combines these two types, an attempt has been made to reduce the amount of welding and the large number of bolts, and to achieve a connection with a high level of safety and suitable performance. To this end, the performance of the proposed connection has been numerically compared with that of the Reduced Beam Section (RBS) connection. The results of these studies showed that the proposed connection with ST۵۲ steel had lower energy absorption, bearing capacity, and stiffness by ۲۴%, ۱۸%, and ۳۵%, respectively, compared to the welded RBS connection, indicating lower performance. However, considering the favorable performance results of the proposed connection, it can be classified within the group of moment connections.

کلیدواژه ها:

Reduced Beam Section ، Bolted Unstiffened End Plate ، End Plate