| Title |
Analytical Study on the Flexural Behavior of Encased Composite Beams with Partial Shear Interaction |
| Authors |
Heo Byung-Wook ; Shin Hyun-Seop ; Bae Kyu-Woong |
| Keywords |
Shear Connector ; Encased Composite Beams ; Effective Stiffness ; Shear Slip |
| Abstract |
With steel and concrete composite beams, the incomplete interaction between the steel and the concrete slab leads to an appreciable increase in beam deflections. Moreover, encased composite beams using a deep deck plate or hollow-core PC slabs are critical to deflection due to their inherent geometry. In this paper, by using the calculation tools that were developed for a previous study on the deflection of encased composite beams considering the slip effects and load-slip curve, the shear bond stress and additional deflection induced due to interface slip of the encased composite beam are presented. It was found that the slip effects significantly contribute to the encased composite beam deflections and result in stiffness reduction of up to 30% compared to that of full shear interaction beams. The predicted results were compared with the measurement of 18 specimens tested in this study, and comparisons showed a high degree of accuracy, within 6%. |