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The research aims to evaluate how dams perform when subjected to seismic loads. These figures will be critical in ensuring the dam's protection and the safety of its users. The dam selected is a roller-compacted concrete (RCC) structure. The dam's unique characteristics and materials are tested using different earthquake PGAs. This aids in the analysis of the cracking process and various fracture modes in concrete dams subjected to strong earthquakes. Incremental Dynamic Analysis was used as the technique, and ABAQUS was used to identify the findings. The data for the earthquake was collected from the PEER Ground Motion Database website. The Pacific Earthquake Engineering Research Center (PEER) ground motion database is accessible via the web and includes tools for searching, selecting, and downloading ground motion data. All downloaded files are UNSCALED and unprocessed (UNROTATED). The unscaled data has been scaled using SeismoSignal Software before being used for the analysis. The Australian National Committee on Large Dams (ANCOLD) and the US Bureau of Reclamation provide guidance on dam input for criteria approval (USBR). Parameters identified are crack patterns that occur on dam maximum displacement and maximum normal and shear stress. The crack patterns on the dam body only have slight damage, whereas the damage only occurs at the bottom of the dam. Ulu Jelai Dam has been evaluated using 7 types of earthquake data, and it was observed that the maximum displacement of each selected earthquake is increasing due to the increase of PGA values. The location of the maximum normal and shear stress has been identified, and all the maximum normal stress is at nodes 40 and 62, while maximum shear stresses are at nodes 62 and 84, which nodes are located near the toe dam area, which is at the downstream sides.

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Incremental Dynamic Analysis of Ulu Jelai Dam Under Selected Earthquake Events

  • 会议论文

  • 发表日期：

    2026年

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  • Rozaina Ismail,
  • Ainnur Zulsyamilatil Huda Abd Halim,
  • Azmi Ibrahim,
  • Azlan Adnan,
  • Dayang Nur Erliyani Fitri Erwan,
  • Nurul Damia Sukati,
  • Nurul Nabilah Moktar

摘要

The research aims to evaluate how dams perform when subjected to seismic loads. These figures will be critical in ensuring the dam's protection and the safety of its users. The dam selected is a roller-compacted concrete (RCC) structure. The dam's unique characteristics and materials are tested using different earthquake PGAs. This aids in the analysis of the cracking process and various fracture modes in concrete dams subjected to strong earthquakes. Incremental Dynamic Analysis was used as the technique, and ABAQUS was used to identify the findings. The data for the earthquake was collected from the PEER Ground Motion Database website. The Pacific Earthquake Engineering Research Center (PEER) ground motion database is accessible via the web and includes tools for searching, selecting, and downloading ground motion data. All downloaded files are UNSCALED and unprocessed (UNROTATED). The unscaled data has been scaled using SeismoSignal Software before being used for the analysis. The Australian National Committee on Large Dams (ANCOLD) and the US Bureau of Reclamation provide guidance on dam input for criteria approval (USBR). Parameters identified are crack patterns that occur on dam maximum displacement and maximum normal and shear stress. The crack patterns on the dam body only have slight damage, whereas the damage only occurs at the bottom of the dam. Ulu Jelai Dam has been evaluated using 7 types of earthquake data, and it was observed that the maximum displacement of each selected earthquake is increasing due to the increase of PGA values. The location of the maximum normal and shear stress has been identified, and all the maximum normal stress is at nodes 40 and 62, while maximum shear stresses are at nodes 62 and 84, which nodes are located near the toe dam area, which is at the downstream sides.