Title |
Flexural Behavior of Encased Composite Beamswith Partial Shear Interaction Considering Shear Slip Effects |
Keywords |
Shear Connector ; Encased Composite Beams ; Effective Stiffness ; Shear Slip |
Abstract |
The advantages of composite construction are now well understood in terms of structural economy, good performance in service, and ease of construction. However, these conventional composite construction systems have some problems to apply steel framed buildings due to their large depth. Slim Floor system is a method of steel frame multi-story building construction in which the structural depth of each floor is minimised by incorporating the steel floor beams within the depth of the concrete floor slab. Previous study we executed an experimental test with “Slim Floor” system using hollow core PC slab and deep deck plate which could reduce the overall depth of composite beam. Presented herein is an analytical study that focuses on flexural behaviour of the partially connected slim floor system with asymmetric steel beams encased in slabs. From the comparison between the analytical study and the test results, It showed a good agreement with respect to the stiffness reduction due to shear slip. Finally, an equations to predict the load-deflection relationship of encased composite beam are presented. |