Experimental investigation of scour and pressures on a single span arch bridge under inundation

Mohsen Ebrahimi, Recep Kahraman, Matthew Riella, Prakash Kripakaran, Slobodan Djordjević, Gavin Tabor, Dusan Prodanović, Scott Arthur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents two experiments, carried out in a 605mm-wide flume, to investigate scour and hydrodynamic pressure on a scaled model of a single span arch bridge. The geometry of the bridge model is scaled down according to a prototype bridge, with hydraulic conditions of the experiments representing a small river. Measurements showed that vertical-contraction scour by the arch bridge is higher than that of flat-deck bridges. Effect of a single cylindrical debris on scour was also evaluated and found to be negligible at the considered flow depth. Temporal variation of hydrodynamic pressure with scour evolution was also measured. It was found that temporal evolution of scour can reduce hydrodynamic pressure significantly at the initial base of the abutment at downstream face of the bridge, which can Erode mortar from the masonry composition of an arch bridge.

Original languageEnglish
Title of host publication7th IAHR International Symposium on Hydraulic Structures
EditorsDaniel B. Bung, Blake P. Tullis
PublisherUtah State University
ISBN (Print)9780692132777
DOIs
Publication statusPublished - 16 May 2018
Event7th IAHR International Symposium on Hydraulic Structures 2018 - Aachen, Germany
Duration: 15 May 201818 May 2018

Conference

Conference7th IAHR International Symposium on Hydraulic Structures 2018
Abbreviated titleISHS 2018
CountryGermany
CityAachen
Period15/05/1818/05/18

Keywords

  • Arch bridge
  • Flume experiment
  • Hydrodynamic pressure
  • Pressure-flow
  • Scour

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Control and Systems Engineering
  • Mechanical Engineering
  • Building and Construction

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  • Cite this

    Ebrahimi, M., Kahraman, R., Riella, M., Kripakaran, P., Djordjević, S., Tabor, G., Prodanović, D., & Arthur, S. (2018). Experimental investigation of scour and pressures on a single span arch bridge under inundation. In D. B. Bung, & B. P. Tullis (Eds.), 7th IAHR International Symposium on Hydraulic Structures Utah State University. https://doi.org/10.15142/T33D25