Mechanical Model of Steel-concrete Composite Joint under Sagging Bending Moment

Abstract

In buildings with steel-concrete composite floors, joints are designed to transmit mainly hogging bending moment. In case of the large horizontal loads due to wind, earthquake or accidental events, sagging bending moments in a joint can also occur. Additionally, large deformations of the structure cause tying and prying effects. In the paper, a mechanical model based on "component method" for evaluation of characteristics of the composite joint is presented. The influence of tying and prying actions on distribution of the internal forces in a joint is also analyzed. The procedure for calculation of the characteristics of the composite joint with bolted endplate connection is elaborated too.

Study on Stiffness of Composite Beam-to-column Joints

“…[3, 4, 5,], and hundreds of articles, e.g. [6,7,8], were already published on the topic of semi-rigid joints or on their influence on behaviour of the structure. The theme is still discussed in conjunction with the composite floor systems, as well.…”