Listar por tema "Scour at bridges"
Mostrando ítems 1-7 de 7
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1D and 2D Hydraulic Modeling to Estimate Bridge Scour: A Case Study
(Polytechnic University of Puerto Rico, 2021)Scour is the effect of erosion of soil surrounding a bridge foundation due to fast-flowing water. This dynamic phenomenon can be categorized as the most common cause of bridge failures. Therefore, scour depth at piers and ... -
Adequate Selection of Design Flood Frequencies for the Evaluation of Scour and Scour Countermeasures of Critical Bridges, and their Impact on the Puerto Rico Highway and Transportation Authority’s Bridge Program
(Polytechnic University of Puerto Rico, 2023)Federal regulations require all bridges, over waterways, to be designed for scour resistance and all existing bridges to be evaluated for scour vulnerability. Scour evaluations are typically based on the hydraulic design ... -
Analysis of Estimated Scour vs Inspected Scour on a Bridge after Hurricane Maria, and their Impact on the Puerto Rico Bridge Program
(Polytechnic University of Puerto Rico, 2018)Bridge scour is considered the main reason for bridge failures due to the holes that can form and compromise the structure stability. Federal regulations require all proposed bridges to be designed for scour resistance and ... -
Countermeasures Analysis for an Existing Scour Critical Bridge (Bridge # 1200) Over Río Grande de Loíza at Road PR-3 Carolina, Puerto Rico
(Polytechnic University of Puerto Rico, 2015)Scour is the most common reason for the failure of highway bridges in the United States. In Puerto Rico, there are more than 350 scour critical bridges. Bridge 1200 has been classified as a scour critical bridge by the ... -
Effects of In-stream Sand and Gravel Mining in Scour at Bridges in Puerto Rico
(Polytechnic University of Puerto Rico, 2016)Scour of bed material from around bridge foundations is the most common cause for the failure of highway bridges in the United States. In Puerto Rico, millions of dollars are being spent by the Puerto Rico Highway Authority ... -
Scour Analysis and Countermeasures Recommendations for the New Bridge Construction on PR-9 over Rio Cana Ponce, Puerto Rico
(Polytechnic University of Puerto Rico, 2015)Scour is a natural phenomenon caused by the erosive action of flowing stream on alluvial beds. Failure of bridges due to scour at their foundations, which consist of abutments and piers, is a common incident. An accurate ... -
Scour Evaluation of Bridge 2487 in Cayey, Puerto Rico
(Polytechnic University of Puerto Rico, 2012)Abstract - Scour at bridges should be monitored constantly using proper procedures in order to secure the safety of the public. According to The US Department of Transportation the most common cause of bridge failures is ...