DefinePK

Abstract

The local scour around bridge piers is one of the most common causes of bridge failures. Many equations have been proposed for determination. Most of these equations have a reliability and are used for design, were developed when the pier located within straight reaches for both flume and field studies. However, few studies have been conducted on bridge pier located within the curved channel. A laboratory work was conducted to measure the local scour which is formed around single circular pier fixed at each 30o of the bend while adopting three different diameters. The results show that the maximum depth of scour and the maximum extents (i.e., length and width) of scour hole, and maximum modification factor due to bend have occurred when the pier is located at sector 90o of the bend. The results also show that the diameter has a significant effect on scour phenomenon.