نوع مقاله : پژوهشی
نویسندگان
1 گروه مهندسی آب، دانشگاه تبریز
2 گروه مهندسی عمران، دانشگاه شهید مدنی آذربایجان
3 دانشکده مهندسی عمران، دانشگاه تبریز
4 دانشکده مهندسی عمران ، دانشگاه تبریز
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The scour of bridge piers is one of the most important factors affecting the stability of bridges constructed over rivers. Many studies have been conducted to evaluate the depth and intensity of scouring around bridge piers. Due to the complexity of this phenomenon, most existing formula cannot estimate the scour depth with reasonable precision. In this paper, regarding the importance of scouring in bridge design, a comparison was made between the formulas used for estimation of scour depth, and then the resulted data from analyzing different models with different ratios of pier spacing to pier width were investigated using BRI-STARS. Comparing Froehlich and CSU relations reveal that the Froehlich equation estimates the scour depth 11 percent more than the CSU formula. Also, the Froehlich is more conservative due to the design criteria. The increasing of scour depth in models with x/b$
کلیدواژهها [English]
)