| Title |
Cracking Behavior in the Negative Moment Region of Continuous Composite Slabs Reinforced with Structural Steel Decking |
| Authors |
Yang Keun-Hyeok ; Ko Young-Woo ; Chung Heon-Soo |
| Keywords |
composite slabs ; flexural crack ; bond stress ; top bar ratio ; negative moment region |
| Abstract |
The objective of this study was to evaluate the flexural cracking behavior in the negative moment region of continuous composite slabs reinforced with structural steel decking. Main experimental variables were slab thickness and top bar ratio. The slabs were tested in 2 continuous span with fixed-ends to get easy access to the negative moment region. Also, Based on the distribution of interfacial bond stresses along a segment between two adjacent cracks was assumed as sin function, a simple method for predicting the spacing and width of cracks was suggested. Results showed that crack spacing and width in negative moment region of composite slabs depend mainly on the top bar ratio rather than slab thickness. The predictions obtained from the proposed method are in good agreement with experimental results. |