Effect of hydrogeomorphological changes in flood plain on bridge multi-hazard performance

Orkan Ozcan*, Okan Ozcan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Unmanned Aerial Systems (UASs) are widely used for various applications, especially for large-scale mapping of flood plains. The Unmanned Aerial Vehicles (UAVs) act as a bridge to fill the gap between the satellite and the field scale, as they provide an alternative to temporal and spatial resolution to the satellite imagery and can be directly linked to the terrestrial measurements. In the study, UAV-derived point clouds are used to create very high-resolution surface models based on Structure from Motion (SfM) technique, which is applied for the creation of 3-D models from unstructured imagery and frequently used in conjunction with UAVs. Thus, seasonal hydrogeomorphological changes in the Boğaçay River flood plain in Antalya Province have been evaluated by using fine resolution UAV-derived orthophotos and Digital Surface Models (DSMs). The monitored landscape changes were determined to have the utmost influence on the multihazard performance of the bridges, which are located on the study region. Further, in the light of this information, the seismic performance of reinforced concrete (RC) bridge infrastructure was determined via static pushover methods. In the study region, the scour depths were determined to reach maximum of 2.2 meters under the bridge piers. The scour-induced reduction in pile lateral displacement capacities was detected to deteriorate the seismic performance of the bridges.

Original languageEnglish
Pages (from-to)956-962
Number of pages7
JournalFresenius Environmental Bulletin
Volume28
Issue number2
Publication statusPublished - 2019

Bibliographical note

Publisher Copyright:
© by PSP.

Funding

This work was supported by the Istanbul Technical University Scientific Research Project (ITUBAP). Project No: MGA-2018-41393. This work was supported by the Istanbul Technical University Scientific Research Project (ITU-BAP). Project No: MGA-2018-41393.

FundersFunder number
ITU-BAP
Istanbul Technical University Scientific Research Project
Istanbul Teknik ÜniversitesiMGA-2018-41393

    Keywords

    • Bridge piers
    • Hydrogeomorphology
    • Multi-hazard
    • Scouring
    • UAV

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