Author(s)

Shaokun Zhou ¹

Affiliation(s)

¹ Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing, 100124, China

Corresponding Author

Shaokun Zhou

ABSTRACT

Concrete filled steel tube (CFST) columns are widely used in bridge and other engineering structures due to their excellent mechanical properties and construction convenience. However, during long-term service, the anti-corrosion coating on the steel tube surface may fail due to environmental erosion, leading to localized corrosion, which subsequently compromises structural safety. Additionally, accidental loads such as vehicle impacts can also cause structural damage. Currently, there is limited research on the residual bearing capacity of locally corroded CFST columns after impact loading. In this paper, a finite element model of circular CFST columns with localized corrosion after impact was established using ABAQUS software. The effects of steel strength, concrete strength, circumferential corrosion angle, axial corrosion length, corrosion depth ratio, and impact energy on the residual bearing capacity were systematically analyzed. The results indicate that increasing steel and concrete strength enhances the residual bearing capacity; larger circumferential corrosion angles and corrosion depth ratios significantly reduce the residual bearing capacity; the axial corrosion length has no significant effect on the residual bearing capacity; and higher impact energy leads to greater structural damage and lower residual bearing capacity. The findings provide theoretical references for damage assessment and reinforcement design of locally corroded CFST columns.

KEYWORDS

Concrete Filled Steel Tube Column; Local Corrosion; Residual Load-Bearing Capacity

CITE THIS PAPER

Shaokun Zhou. Study on Remaining Bearing Capacity of Local Corrosion Circular Concrete Filled Steel Tube Column after Impact. Journal of Civil Engineering and Urban Planning (2026). Vol. 8, No.1, 44-51. DOI: http://dx.doi.org/10.23977/jceup.2026.080105.

REFERENCES

[1] H. Zhao, S. Mei, D.C. Wang, Wensu. Round-ended concrete-filled steel tube columns under impact loading: Test, numerical analysis and design method[J]. Thin-Walled structures, 2023, 191(Oct.): 1.1-1.17.
[2] Zhou Xiaoguang, Hou Chao, Li Wei. Corrosion damage characteristics and intelligent evaluation method for offshore steel tube concrete [J]. Journal of Architectural Structures, 2024, 45(S01):304-315.
[3] Hou Chuanchuan. Study on Mechanical Properties of Circular Steel Tube Concrete Members under Low-Speed Transverse Impact Load [D]. Tsinghua University, 2012.
[4] Lai D ,Chen Y ,Liao F , et al.UHPC-encased CFST composite columns under lateral impact: An experimental investigation[J].Journal of Constructional Steel Research,2024,222108948.DOI:10.1016/J.JCSR.2024.108948.
[5] Fu Chaojiang, Deng Shupeng, Luo Caishong, Gao Yibin. Mechanistic analysis of lateral impact on steel tube reinforced concrete columns and study on inertial forces [J]. Architectural Science, 2022, 38(9):35-45.
[6] Fu Chaojiang, Gao Ying, Chen Huayan, Luo Caishong, Wang Bizhen, Lin Youfeng, Zhang Zequn. Study on residual axial load-bearing capacity of steel tube concrete columns after lateral impact [J]. Advances in Building Steel Structures, 2024, 26(4):57-69.
[7] Wang Yifan. Remaining load-bearing capacity and damage analysis of weathering steel tube concrete columns after lateral impact [D]. Yangtze University, 2023.

Sponsors, Associates, and Links

---

• Journal of Sustainable Development and Green Buildings
  
  
• Landscape and Urban Horticulture
  
  
• Bridge and Structural Engineering
  
  
• Soil Mechanics and Geotechnical Engineering
  
  
• Journal of Municipal Engineering
  
  
• Heating, Ventilation and Air Conditioning
  
  
• Indoor Air Quality and Climate
  
  
• Computer Aided Architecture Design