Serviceability Assessment of Masonry Arch Bridges Using Digital Image Correlation
Serviceability deflections and strains at the crown, support, and quarter point of two aged masonry arch bridges under operating passenger and freight trains were assessed using a digital image correlation method. Three lasers recorded the passage of the wheels; these data were used to ascertain the wheel positions, which corresponded well with the peaks of the deflections measured. The measured maximum deflection and strain were 0.5 mm and 110 microstrain, respectively; these data were validated through a three-dimensional (3D) finite-element model incorporating saturated soil fill, masonry arch, and their interface. The predicted strains matched well with the field measurements. The variation of the strains with the wheel positions over the arch barrel was also simulated. The magnitudes of the deflection and strain were too small to cause serviceability limit-state exceedance alarms for the masonry arches.
- Record URL:
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
-
Supplemental Notes:
- © 2018 American Society of Civil Engineers.
-
Authors:
- Dhanasekar, Manicka
- Prasad, Peter
- Dorji, Jigme
- Zahra, Tatheer
- Publication Date: 2019-2
Language
- English
Media Info
- Media Type: Web
- Pagination: 04018120
-
Serial:
- Journal of Bridge Engineering
- Volume: 24
- Issue Number: 2
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo
Subject/Index Terms
- TRT Terms: Arch bridges; Bearing capacity; Finite element method; Image processing; Lasers; Masonry bridges; Serviceability; Structural health monitoring; Wheel loads
- Subject Areas: Bridges and other structures; Maintenance and Preservation; Railroads;
Filing Info
- Accession Number: 01691084
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: Jan 22 2019 11:39AM