Fatigue performance of RC beams strengthened with CFRP under coupling action of temperatures and vehicle random loads

Lin, JX; Huang, Peiyan; Guo, Xinyan; Chen, Zhao

doi:10.1111/ffe.12863

Cited by 13 publications

(6 citation statements)

References 20 publications

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“…Latin where M is the section flexural moment, f η is the internal arm coefficients of CFRP and it is suggested to take as 0.95 in Lin et al (2019).…”

Section: The Proposed Theoretical Modelmentioning

confidence: 99%

“…The basis of the durability design was proposed for the high strength concrete structures reinforced by CFRP. Several studies (Biosca et al, 2019;Ferrier and Agbossou, 2017;Lin et al, 2019;Lopez et al, 2003) focused on the flexural and fatigue properties of concrete beams strengthened with CFRP plates under temperature field. It can be concluded that the high temperature condition has an adverse effect on the bearing capacity of interfacial debonding.…”

Section: Introductionmentioning

confidence: 99%

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Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Yuan

Zhu

et al. 2019

Lat. Am. j. solids struct.

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This paper investigates the crack and mechanical behavior of CFRP plate-reinforced bridge roof under high temperature with different anchoring measures. Six CFRP-reinforced test beams with different anchoring schemes were designed and constructed. The beam specimens, after the high temperature effects, were tested under four-point bending loads. The crack propagation, beam deflection, mid-span strain and the damage modes were observed and recorded until failure. The stiffness variation and the debonding failure mechanism of the test beams were comparatively investigated. The results indicate that the debonding bearing capacity of the specimens can be improved by the additional anchoring measures. The concrete shrinkage at the crack and the average crack spacing are more effectively reduced, when the additional anchoring measures are placed at the mid-span and the support position. In addition, a theoretical model is proposed for calculating the intermediate crack debonding bearing capacity. Based on the comparative analysis of various models and test results, it is shown that the proposed model could accurately calculate the intermediate crack debonding bearing capacity of the test specimens.

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“…Latin where M is the section flexural moment, f η is the internal arm coefficients of CFRP and it is suggested to take as 0.95 in Lin et al (2019).…”

Section: The Proposed Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Yuan

Zhu

et al. 2019

Lat. Am. j. solids struct.

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show abstract

“…Algorithms 2019, 12,260 3 of 14 plate. The sensor scan plane is parallel to the ground and perpendicular to the drive direction.…”

Section: Design Principle Of 3d Laser Scanning Systemmentioning

confidence: 99%

“…Certain damage, which have considerable impact on structure reliability and security, are inevitably retained because of the influence of fatigue load [10][11][12]. The process of causing damage caused by cyclic loading includes the combined results of the cumulative process of crack initiation, expansion and final fracture.…”

Section: Introductionmentioning

confidence: 99%

Damage Diagnosis of Reactive Powder Concrete under Fatigue Loading Using 3D Laser Scanning Technology

Wang

2019

Algorithms

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Damage mechanisms of Reactive Powder Concrete (RPC) under fatigue loading are investigated using the 3D laser scanning technology. An independently configured 3D laser scanning system is used to monitor the damaging procedure. Texture analysis technique is also applied to enhance the understanding of the damage mechanisms of RPC under fatigue loading. In order to obtain the characteristic parameters of point cloud data, a point clouds projection algorithm is proposed. Damage evolution is described by the change of point cloud data of the damage in the 2D plane and 3D space during fatigue loading. The Gray Level Co-occurrence Matrix (GLCM) method is used to extract the characteristic parameters to evaluate the statue of the structural. Angular Second Moment and Cluster Shadow of typical sensitive characteristic indexes is screened by using the Digital Feature Screening. The reliability of the damage index was verified by image texture analysis and data expansion. Indexes extracted in this paper can be used as a new structural health monitoring indicator to assess health condition.

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“…A reliability index was analyzed by considering the coupling effect of wet-dry action and load. Lin et al (2019) investigated the fatigue behavior of CFRP reinforced concrete bridge under the effect of both high temperature and vehicle loads. A fatigue testing method was proposed and the fatigue damage mechanism was analyzed as well.…”

Section: Introductionmentioning

confidence: 99%

Fatigue performance and life prediction of CFRP plate in the RC bridge roof reinforcement

Yuan

Zheng²,

Zhu

et al. 2020

Lat. Am. j. solids struct.

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This paper investigated the fatigue properties and theoretical research on Carbon-Fiber-Reinforced Polymer (CFRP) RC bridge roof with new deck-pavement material. Two deck pavement schemes of CFRP-reinforced specimens were designed and tested. Four-point flexural fatigue tests were carried out on the specimens. The fatigue crack propagation, the deflection development and the CFRP strain under bridge fatigue load were researched. The test results show that the CFRP plate-reinforced specimens crack resistance performance can be improved and can bear the fatigue test load of two million times. Combined with the characteristics of the crack growth rate and fatigue damage accumulation of CFRP plate-reinforced bridge roof specimens, the fatigue life prediction analytical model for CFRP plate reinforced RC bridge roof was obtained. The fatigue life prediction model agrees well with the experimental results. The model proposed in this paper could be applied to predict the fatigue life of the CFRP plate-reinforced RC bridge roofs.

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Fatigue performance of RC beams strengthened with CFRP under coupling action of temperatures and vehicle random loads

Cited by 13 publications

References 20 publications

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Damage Diagnosis of Reactive Powder Concrete under Fatigue Loading Using 3D Laser Scanning Technology

Fatigue performance and life prediction of CFRP plate in the RC bridge roof reinforcement

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