MATEC Web Conf.
Volume 258, 2019International Conference on Sustainable Civil Engineering Structures and Construction Materials (SCESCM 2018)
|Number of page(s)||7|
|Section||Structural Dynamics and Earthquake Engineering, Structures in Severe Environment, Structural Analysis|
|Published online||25 January 2019|
Effects of Surface Roughness on the Behavior of Interface between Old and New Deck Slabs Under Concentrated Load
1 Lecturer, Department of Civil Engineering, Hasanuddin University, Indonesia
2 Professor, Department of Civil Engineering, Tokyo Institute of Technology, Japan
3 Professor, Department of Civil Engineering, Hasanuddin University, Indonesia
4 Associate Professor, Department of Civil Engineering, Hasanuddin University, Indonesia
Experimental and analytical studies on the behavior of interface between old and new deck slabs were investigated in this study. The test was performed to represent a bridge widening method that has been developed in Japan. Therefore, each specimen consist of the old and new deck slabs. The connection between those deck slabs was varied into a rough and smooth surface. Before testing, the slabs were prestressed using unbonded PC rods which amount of 1.0 MPa. The result of this study indicated that the difference in the level of roughness does not provide a significant effect on the ultimate capacity. Remarkable effects were only observed on crack pattern, deflection, and joint opening behavior. To validate the experiments, the ultimate capacity of experiment was compared with the predicted shear capacity obtained from JSCE Specification and fib Model Code. In the guidelines, the area of the interface is assumed as the total area of the interface. However, such assumption cannot be used in this study. Therefore, the effective area of the interface obtained from FEM analysis was proposed in this study. Eventually, by using the proposed effective area of the interface, the calculated results showed that all guidelines provide a good lower limit to predict the ultimate capacity of the deck slabs.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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