Seismic Fragility Analysis of Steel Pipe Pile Wharves with Random Pitting Corrosion

被引:7
作者
Zhao, Xuan [1 ]
Liao, Xu [2 ]
Hu, Zhaohui [1 ]
Li, Xian [2 ]
Nie, Ying [1 ]
Liu, Jun [3 ,4 ]
Xu, Yuming [2 ]
机构
[1] CISDI Grp Co Ltd, Chongqing 400013, Peoples R China
[2] China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221000, Peoples R China
[3] Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China
[4] XAUAT Engn Technol Co Ltd, Xian 710055, Peoples R China
基金
中国国家自然科学基金;
关键词
steel pipe pile wharf; random pitting corrosion; probabilistic seismic demand function; fragility analysis; SUPPORTED WHARVES; PERFORMANCE; PREDICTION; EARTHQUAKE; CAPACITY; BEHAVIOR;
D O I
10.3390/buildings13102619
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper investigates the seismic damage behavior of steel pipe pile wharves after pitting corrosion. The seismic intensity is treated as random, and a probabilistic strength model for randomly pitting corroded steel is utilized to assess the seismic response of a typical steel pipe pile wharf. By analyzing the internal force response of each pile and the deformation response of the deck and soil slope, the process of seismic failure in steel pipe pile wharves with different pitting corrosion ratios is investigated. The results demonstrate that pitting corrosion amplifies the internal force within the steel pipe piles, leading to more severe seismic damage. Additionally, probabilistic seismic demand functions are established for the most vulnerable row of piles affected by random pitting corrosion, and the seismic fragility of the pipe pile wharves considering different pitting corrosion ratios is evaluated. These findings provide valuable insights for the design and strengthening of steel pipe pile wharves.
引用
收藏
页数:21
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