Volume 26 Issue 6
Jun.  2026
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ZHANG Wei-wei, XING Zhi-quan, CHEN Yu, ZHAO Yan-gang, YOSHIYAMA Hiroshi, LIN Si-qi, SONG Tian-yi, GHAFORY-ASHTIANY Mohsen, KUMAR Manish. Axial compressive performance of round-ended UHPC-filled aluminum alloy tube columns after lateral impact[J]. Journal of Traffic and Transportation Engineering, 2026, 26(6): 36-51. doi: 10.19818/j.cnki.1671-1637.2026.317
Citation: ZHANG Wei-wei, XING Zhi-quan, CHEN Yu, ZHAO Yan-gang, YOSHIYAMA Hiroshi, LIN Si-qi, SONG Tian-yi, GHAFORY-ASHTIANY Mohsen, KUMAR Manish. Axial compressive performance of round-ended UHPC-filled aluminum alloy tube columns after lateral impact[J]. Journal of Traffic and Transportation Engineering, 2026, 26(6): 36-51. doi: 10.19818/j.cnki.1671-1637.2026.317
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Axial compressive performance of round-ended UHPC-filled aluminum alloy tube columns after lateral impact

doi: 10.19818/j.cnki.1671-1637.2026.317
  • 1.

    College of Civil Engineering, Fuzhou University, Fuzhou 350108, Fujian, China

  • 2.

    Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China

  • 3.

    State Key Laboratory of Bridge Safety and Resilience, Beijing University of Technology, Beijing 100124, China

  • 4.

    Japan-China Consultant Co., Ltd., Tokyo 134-0086, Japan

  • 5.

    International Institute of Earthquake Engineering and Seismology (IIEES), Tehran 1953622294, Iran

  • 6.

    Indian Institute of Technology, Gandhinagar 382355, Gujarat, India

Funds:

University-Industry Collaborate Innovation Science and Technology Program Project of Fujian Province 2024Y4013

Beijing Municipal Natural Science Foundation Chaoyang Key Project L259028

Science and Technology Plan Project of Housing and Urban Rural Construction Industry of Fujian Province 2025-K-152

Science and Technology Plan Project of Housing and Urban Rural Construction Industry of Fujian Province 2025-K-153

Science and Technology Plan Project of Housing and Urban Rural Construction Industry of Fujian Province 2025-K-154

More Information
  • Corresponding author: CHEN Yu, professor, PhD, E-mail: yuchen@bjut.edu.cn
  • Received Date: 2026-01-20
  • Accepted Date: 2026-05-27
  • Rev Recd Date: 2026-03-24
  • Publish Date: 2026-06-28
    Abstract
  • To investigate the influence mechanism of lateral impact damage on the axial compressive performance of round-ended UHPC-filled aluminum alloy tube (RE-UCFAT) columns, drop-weight impact tests were first conducted to apply initial damage, and axial compression tests were then carried out to systematically quantify the weakening effects of impact damage on the residual ultimate load-carrying capacity and axial stiffness of members. A refined parameter-calibrated finite element model was established to reveal the evolution mechanism of impact damage. Based on the unified theory and the idea of effective confinement zoning, a calculation method for the ultimate load-carrying capacity applicable to RE-UCFAT columns was proposed. By decoupling the cross-sectional solid damage and the overall stability reduction effect, a prediction model for residual load-carrying capacity containing energy-axial compression cross-coupling was established. Research results indicate that the round-ended aluminum alloy tube has a good confinement effect on the core UHPC, and the typical failure mode of the member is weak-axis shear failure. The lateral impact leads to significant degradation of the load-carrying capacity and stiffness of the member, and the performance attenuation caused by straight-edge damage is significantly greater than that caused by curved-edge damage. Under a high axial compression ratio, the impact damage induces a transition in the failure mode. The straight-edge damage causes the member to shift to combined bending-shear failure by introducing the second-order effect, while the curved-edge damage induces strong-axis shear failure by introducing punching shear damage. Validation results show that the established numerical model and the two types of analytical models for load-carrying capacity have high accuracy and can provide a theoretical basis for the impact-resistant design and assessment of this novel type of composite columns.

     

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