Concrete integral abutment bridges with reinforced concrete piles

Gama, David; Almeida, João F.

doi:10.1002/suco.201300081

Cited by 13 publications

(4 citation statements)

References 8 publications

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“…The CMOD of abutment‐pile A, pier‐piles B and C is presented in Figure 20. Similar patterns have been reported by Gama and Almeida 14 and Mori et al 15 The CMOD of abutment‐pile A was larger than the CMOD of pier‐piles B and C. From the CMOD curve, the fatigue life was obtained as 30,989 cycles of daily temperature load which is equal to 84 years (approximate). The failure cracks developed earlier in the abutment‐piles in comparison to the pier‐piles.…”

Section: Resultssupporting

confidence: 80%

“…Failure of FIB piles due to fatigue‐induced cracking is one of the major trepidations for structural engineers. Specifically, a reinforced concrete (RC) FIB (RC‐FIB) suffers majorly and immensely from repetitive cyclic thermal and vehicular (thermomechanical) loading 14,15 . The bridge members that suffer fatigue failure are the bridge girders, abutments, piers, and piles.…”

Section: Introductionmentioning

confidence: 99%

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Temperature‐driven fatigue life of reinforced concrete integral bridge pile considering nonlinear soil–structure interaction

Verma

Mishra

2020

Structural Concrete

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In this study, a five‐span fully integral reinforced concrete (RC) bridge has been investigated for fatigue life assessment of its RC piles considering the effects of environmental temperature variation and nonlinear soil characteristics. The effect of daily temperature variation on the abutment wall and pile foundation has been estimated. Multilayers of soil along the abutment pile depth have been considered in the formulations. The soil has been represented as 3D nonlinear springs. A new fatigue model has been used for crack initiation and propagation in the RC piles. In this model, a crack has been assumed to progress successively in three stages from the tension side of the pile. Finite element (FE)‐based modeling and analyses have been carried out to determine the longitudinal displacements and bending moment in piles, abutments, and piers. Furthermore, taking the bending moment as input crack mouth opening distance, crack propagation and fatigue life of pile have been assessed using the FE method‐based software. It is seen that the abutment piles suffer fatigue damage earlier as compared to the pier‐piles as a result of thermal and vehicular loads effects. Also, thermal fluctuation has shown little or no fluctuations in the longitudinal displacements of abutment and piles in the multispan fully integral bridge (FIB). It is expected that the proposed method will be helpful for the bridge engineers in designing the pile foundation passing through multiple soil layers against fatigue damage of a FIB in particular subjected to thermal and vehicular loading.

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Section: Resultssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Temperature‐driven fatigue life of reinforced concrete integral bridge pile considering nonlinear soil–structure interaction

Verma

Mishra

2020

Structural Concrete

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“…RC piles are also used in the pile foundation of integral bridge in China. The research shows that [12][13][14][15], the horizontal deformation resistance of the traditional RC pile foundation reinforced only by the structure is low, so it is difficult to apply to the integral bridge, which limits the popularization of this type of bridge.…”

Section: Introductionmentioning

confidence: 99%

Study on Interaction of RC Pile-Soil with High Reinforcement Ratio of Integral Abutment Bridges under Quasi-Static Test

Luo

Huang

Zhi-fu³

et al. 2022

J. Phys.: Conf. Ser.

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In order to improve the ability of the reinforcement concrete (RC) pile foundation of integral abutment to absorb the horizontal reciprocating deformation under the action of temperature or earthquake, a pseudo-static low cycle test on interaction of pile-soil with high reinforcement ratio was carried out. The failure location, hysteresis curve, skeleton curve and horizontal deformation of three piles with different reinforcement ratios were compared. The test results show that, with the increase of the reinforcement ratio, the crack of the RC pile develops along the pile body to the depth, and the pile body failure area and the position where the maximum bending moment moves down, the crack resistance of the pile body is improved, and the effective interaction pile length increases; The test results also show that the hysteresis curve of the model pile becomes fuller with the increase of the reinforcement ratio, compared with the RCP-1 specimen with the lowest reinforcement ratio, the equivalent viscous damping ratio of the RCP-3 specimen is increased by 31.6%, and the energy dissipation capacity is improved. In addition, with the increase of the reinforcement ratio, the bearing capacity and deformation capacity of model piles are greatly improved. Compared with RCP-1 specimen, the ultimate bearing capacity of RCP-3 specimen increased by 150%, and the corresponding ultimate displacement increased by 153%. Increasing reinforcement ratio can significantly improve the mechanical properties and deformation capacity of RC pile.

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“…The focus of damage orientation may take place on sampling planes and tolerance evaluations should be on ensuring safety in the event of approaching to a failure mechanism event is to be included in compliance matrix. The damage type and tolerance approach involves the damage cause as well as its geometry and minimum energy‐based procedure to protect a real safety, rather than the traditional factors of safety used for ultimate loads …”

Section: Introductionmentioning

confidence: 99%

Analysis of concrete crack growth based on micro‐plane model

Peyman

Sadrnejad

2017

Structural Concrete

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The crack geometry effect is encountered in compliance matrix as a tensor containing 17 on-plane stress/strain component interrelation. The components of compliance matrix vary due to the effects of the directional fabric behavior of the material created by inherent/induced anisotropy that can be differed in any of the multi-direction through material. Mathematically, any alterations in multidirectional material behavior are numerically integrated and affected in material compliance matrix. The main objective of this paper is to develop a numerical approach to determine the crack initiation and its growth for brittle materials such as concrete. Upon the numerical integration technique, any multi-directional behavior aspect is affected by components of compliance matrix to reflect historically in the next step material behavior. Accordingly, the proposed model results are investigated to satisfy both equilibrium and compatibility equations. In this paper, previous selected 13 sampling points in numerical integration are updated to 17 planes to overcome the compatibility problem. To show the capability of the model, a few fractured concrete test results under different loading stress/strain paths were examined. The significant advantage of the proposed multi-laminate model is to present a complete pre-failure history of stress/strain progress on different predefined sampling planes which leads to the illustration of the final damaged or failure mechanism. K E Y W O R D S anisotropy, complete compliance matrix, concrete, damage, multi-laminate

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Concrete integral abutment bridges with reinforced concrete piles

Cited by 13 publications

References 8 publications

Temperature‐driven fatigue life of reinforced concrete integral bridge pile considering nonlinear soil–structure interaction

Temperature‐driven fatigue life of reinforced concrete integral bridge pile considering nonlinear soil–structure interaction

Study on Interaction of RC Pile-Soil with High Reinforcement Ratio of Integral Abutment Bridges under Quasi-Static Test

Analysis of concrete crack growth based on micro‐plane model

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