Structural Assessment of Mahakam Bridge Geometry Using Geodetic GPS and Terrestrial Laser Scanner
DOI:
https://doi.org/10.71225/jstn.v2i1.87Keywords:
Bridgelink, Geometric, Mahakam, Terrestrial, VerticalityAbstract
This study employs a terrestrial laser scanner and geodetic GPS to assess the camber elevation, lateral drift, and pilecap inclination of the Mahakam I Bridge in Samarinda, East Kalimantan. The camber inspection results reveal variations in the elevation of spans B3, B4, and B5, with the lowest measured at 68.74 m and the highest at 70.35 m. The lateral drift analysis on piers P2, P3, and P4 indicates minimal displacements, with maximum deviations ranging from -0.05% to 0.29%. The inclination angles of the pilecaps on P2, P3, and P4, measured at 90.411˚, 90.128˚, and 90.112˚, respectively, exhibit slight deviations from the optimal 90˚ alignment. These findings highlight the need for continuous monitoring and potential structural adjustments. The study underscores the critical role of precise geometric assessment in preserving bridge integrity and ensuring long-term structural stability. Further investigations and mitigation strategies are recommended to prevent potential risks and deterioration.
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