Nonlinear finite elements modeling and experiments of FRP-reinforced concrete piles under shear loads

被引：15

作者：

Ali, Ahmed H. ^{[1
,3
]}

Gouda, Ahmed ^{[1
]}

Mohamed, Hamdy M. ^{[1
,2
]}

Rabie, Mohamed H. ^{[1
]}

Benmokrane, Brahim ^{[2
]}

机构：

[1] Helwan Univ, Dept Civil Engn, Cairo, Egypt

[2] Univ Sherbrooke, Dept Civil Engn, Sherbrooke, PQ, Canada

[3] Egyptian Chinese Univ, Dept Construct & Bldg Engn, Ein Shams, Egypt

来源：

STRUCTURES | 2020年 / 28卷

关键词：

Shear strength; FRP; Flexure reinforcement ratio; Finite element; Piles; MEMBERS; STRENGTH; BEAMS;

D O I：

10.1016/j.istruc.2020.08.047

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A numerical analysis investigation, using finite element model (FEM) and modified compression field theory (MCFT), was conducted to evaluate the shear capacity and behavior of circular concrete piles reinforced with steel and FRP bars by considering shear behavior, shear strength, and deflection shape. The FEM and MCFT models were verified against the experimental results of full-scale circular concrete speciemns previously tested by the authors. Load-deformation response curve, load-strain for the concrete and reinforced rebars were predicted using finite element analysis were compared to experimental results. The FEM outcomes showed that the model was able to capture the behavior of the specimens with good accuracy. While, the modified compression field theory using Response 2000 (R2K) software provided good predictions of the shear strength with an average value of Vexp/VResponse2000 for specimens is 1.17. Subsequently, a parameric study was performed to study the effect of member's depth (300, 400, and 600 mm), longitudinal reinforcement ratio (1.5, 2.5, and 3.5%), and reinforcing bars material (Steel, Glass-FRP, Carbon-FRP) on the behaviour of circular concrete piles.

引用

页码：106 / 119

页数：14

共 42 条

[1]

ACI Committee 440, 2015, ACI440.1R-15, DOI DOI 10.1061/40753(171)158

[2]

Ahmed H., 2015, SUSTAINABLE DEV GOAL

[3]

Ali A. H., 2016, THESIS SHERBROOKE U

[4] Bar size effect on long-term durability of sand-coated basalt-FRP composite bars [J].

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

Benmokrane, Brahim .

COMPOSITES PART B-ENGINEERING, 2020, 195

[5] Theory-based approaches and microstructural analysis to evaluate the service life-retention of stressed carbon fiber composite strands for concrete bridge applications [J].

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

Benmokrane, Brahim ;

ElSafty, Adel .

COMPOSITES PART B-ENGINEERING, 2019, 165 :279-292

[6] Durability performance and long-term prediction models of sand-coated basalt FRP bars [J].

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

Benmokrane, Brahim ;

ElSafty, Adel ;

Chaallal, Omar .

COMPOSITES PART B-ENGINEERING, 2019, 157 :248-258

[7] Shear resistance of RC circular members with FRP discrete hoops versus spirals [J].

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

Chaallal, Omar ;

Benmokrane, Brahim ;

Ghrib, Faouzi .

ENGINEERING STRUCTURES, 2018, 174 :688-700

[8] Statistical analysis and theoretical predictions of the tensile-strength retention of glass fiber-reinforced polymer bars based on resin type [J].

Ali, Ahmed H. ;

Benmokrane, Brahim ;

Mohamed, Hamdy M. ;

Manalo, Allan ;

El-Safty, Adel .

JOURNAL OF COMPOSITE MATERIALS, 2018, 52 (21) :2929-2948

[9] Strength and Behavior of Circular FRP-Reinforced Concrete Sections without Web Reinforcement in Shear [J].

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

Benmokrane, Brahim .

JOURNAL OF STRUCTURAL ENGINEERING, 2017, 143 (03)

[10] Shear Behavior of Circular Concrete Members Reinforced with GFRP Bars and Spirals at Shear Span-to-Depth Ratios between 1.5 and 3.0 [J].

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

Benmokrane, Brahim .

JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2016, 20 (06)

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