Abstract—Arch structures is one of the oldest structural form in bridge engineering. Due to its surprisingly durability and aesthetic value, it is widely used as crossing over valleys and rivers nowadays. Closed spandrel arch bridge is one type of arch bridges that have been produced using precast concrete technology since 1965. Various cross-sectional shapes for precast concrete bridge have been proposed. Corrugated shape is a relatively new section which was introduced in 2008 in Malaysia. In this paper, the effect of depth, flange to web thickness ratio and slenderness ratio on structural behavior of this new corrugated arch section is presented. Computational analysis is carried out using analysis software PLAXIS and LUSAS. A total of 25 models with various flange to web thickness ratio and overall depth is proposed. The clear rise and clear span of the bridge is 5.8m and 20.6m, respectively. It was found that high slenderness ratio of the corrugated section result in lower stress in the section at crown but higher stress in the section at haunch. The flange to web thickness ratio contributes insignificantly to the maximum stress resulted on the corrugated section. 
 

Index Terms—precast concrete closed spandrel arch bridge, corrugated section, flange to web thickness ratio, slenderness ratio

Cite: Chong Yong Ong, Jia Bin Yeo, Kok Keong Choong, and Mirzakhid Miralimov, "Effect of Depth and Flange to Web Thickness Ratio on Structural Behaviour of Corrugated RC Section Used in Arch Bridge," International Journal of Structural and Civil Engineering Research, Vol. 4, No. 4, pp. 314-319, November 2015. doi: 10.18178/ijscer.4.4.314-319