Response and shear mechanism of RC bridge piers confined with CFRP grid-reinforced ECC subjected to truck collision

被引：10

作者：

Zhou, Chang ^{[1
]}

Wang, Wenwei ^{[1
]}

Zheng, Yuzhou ^{[2
]}

Cheng, Yi ^{[1
]}

Wu, Zenghan ^{[1
]}

机构：

[1] Southeast Univ, Sch Transportat, Nanjing 211189, Peoples R China

[2] Army Engn Univ PLA, Sch Field Engn, Nanjing 210042, Peoples R China

来源：

ENGINEERING FAILURE ANALYSIS | 2023年 / 143卷

基金：

中国国家自然科学基金;

关键词：

Carbon fiber reinforced polymer (CFRP); Engineered cementitious composites (ECC); Truck -bridge collision; Dynamic response; Shear mechanism; CONCRETE; IMPACT; PERFORMANCE; BEHAVIOR; FRP; COLUMNS; BEAMS; MODEL;

D O I：

10.1016/j.engfailanal.2022.106882

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

To improving the impact resistance of RC bridge piers under truck collision, numerical simulation is carried out to compare the dynamic response of reinforced concrete (RC) piers and carbon fiber reinforced polymer (CFRP) grid-reinforced engineered cementitious composites (ECC) confined RC piers. Parametric analysis is conducted to investigate the effect of ECC and CFRP on the dynamic shear capacity of bridge piers. Numerical results show that the presence of CFRP gridreinforced ECC will decrease the tension stress of longitudinal rebars. Besides, CFRP can work simultaneously with stirrup hoops to improve the shear resistance of confined piers. The quantitative analysis indicates that CFRP and ECC have significant influence on improving the dynamic shear capacity of bridge piers, while weight of engine and initial velocity of truck are the predominate factors of dynamic shear demand. Finally, two formulae for predicting dynamic shear demand of trucks and shear capacity of composite bridge piers are proposed, and the shear mechanism of confined piers is clarified.

引用

页数：14

共 10 条

[1] Performance-based design for improving impact resistance of RC bridge piers with CFRP grid-reinforced ECC
Zhou, Chang
Xie, Yazhou
Wang, Wenwei
Zheng, Yuzhou
ENGINEERING STRUCTURES, 2023, 275
[2] Dynamic behavior of RC columns confined with CFRP grid-reinforced ECC subjected to lateral low-velocity impact
Zhou, Chang
Wang, Wenwei
Zheng, Yuzhou
Liu, Xin
Cao, Hongbin
Hui, Yingxin
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2023, 172
[3] Flexural strengthening of RC beams with CFRP grid-reinforced ECC matrix
Yang, Xu
Gao, Wan-Yang
Dai, Jian-Guo
Lu, Zhou-Dao
Yu, Ke-Quan
COMPOSITE STRUCTURES, 2018, 189 : 9 - 26
[4] Shear strengthening of RC beams with FRP grid-reinforced ECC matrix
Yang, Xu
Gao, Wan-Yang
Dai, Jian-Guo
Lu, Zhou-Dao
COMPOSITE STRUCTURES, 2020, 241
[5] Seismic performance of fire-damaged RC columns strengthened with CFRP grid-reinforced ECC matrix
Shang, Xing-yan
Chen, Xin
Li, Ling-zhi
Yu, Jiang-tao
Zhou, Zhong-guan
ENGINEERING STRUCTURES, 2025, 329
[6] Shear strengthening of RC short columns with CFRP grid-reinforced FRC matrix: Cyclic loading tests
Guo, Liying
Deng, Mingke
Li, Ruizhe
Li, Tong
Dong, Zhifang
JOURNAL OF BUILDING ENGINEERING, 2022, 47
[7] Shear strengthening of RC short columns with CFRP grid-reinforced FRC matrix: Cyclic loading tests
Guo, Liying
Deng, Mingke
Li, Ruizhe
Li, Tong
Dong, Zhifang
Journal of Building Engineering, 2022, 47
[8] Axial behavior of pre-damaged RC columns strengthened with CFRP textile grid-reinforced ECC matrix composites
Li, Shan
Chen, Xinyu
Liu, Zhenzhen
Lu, Yiyan
Wang, Han
JOURNAL OF BUILDING ENGINEERING, 2023, 73
[9] Damage Mechanism and Calculation Method for Double-column RC Bridge Piers Subjected to Truck Impact
Wang S.-C.
Pang X.-F.
Zhang G.
Fu Y.-Q.
Yuan Z.-Y.
Zhongguo Gonglu Xuebao/China Journal of Highway and Transport, 2024, 37 (05): : 108 - 121
[10] Shear strengthening of RC beams with corrosion-damaged stirrups using FRP grid-reinforced ECC matrix composites
Zheng, Aohan
Li, Shan
Zhang, Dengfeng
Yan, Yuhong
COMPOSITE STRUCTURES, 2021, 272

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