LRT's Long Span Arch Bridge Tested for Quake Resistance: Designer



Petir Garda Bhwana

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  • TEMPO.CO, JakartaThe designer of Light Rail Transit or LRT Jabodebek, Arvila Delitriana, said that she had considered earthquake risk when designing the long span arch bridge of urban transportation. Dina, as she was called, explained that she had tested the design in reference to the world’s seven largest earthquakes.

    "The bridge structure is special so it cannot be designed by a concern of ordinary earthquakes," said Dina during an appreciation event from the central government at the Assessment and Application of Technology Agency (BPPT) Building, Monday, January 6.

    The master graduate of Geotechnical Engineering of Bandung Institute of Technology (ITB) explained she used 'quite complicated’ level of earthquakes for the project and simulated the effects of seven world’s earthquakes on the bridge, namely four quakes from the United States and the others from Morocco and Japan.

    "This means the structure's resistance to the earthquake has been calculated in the most complicated way," said Dina.

    The girder-box concrete bridge structure has a curved radius of 115 meters and spans along 148 meters. The foundation load testing reached 4,400 tons with the construction starting from each side of the main pier to the center.

    LRT Jabodebek curved bridge had been inaugurated on November 11, 2019, and was declared as one of the longest spans bridges in the world. The loading test will be established later in a bid to prove the strong structure for operation.