Shear assessment of a reinforced concrete bridge deck slab according to level‐of‐approximation approach

Shu, Jiangpeng

doi:10.1002/suco.201700283

Cited by 3 publications

(1 citation statement)

References 25 publications

(35 reference statements)

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“…The LoA approach has been applied to the modelling of different failure modes, e.g. (Muttoni & Fern andez Ruiz, 2012;Shu, 2018) for shear and (Tahershamsi, Fernandez, Zandi, & Lundgren, 2017) for anchorage. The latter analysis served as a basis for the anchorage modelling levels used in this work, presented in ascending order in Figure 2.…”

Section: Overview Of Modelling Levels For Anchorage Assessmentmentioning

confidence: 99%

Incorporation of pre-existing longitudinal cracks in finite element analyses of corroded reinforced concrete beams failing in anchorage

Blomfors

Lundgren

Zandi

2020

Structure and Infrastructure Engineering

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Transportation infrastructure is of fundamental importance and must be regularly assessed to ensure its safety and serviceability. The assessment of ageing reinforced concrete bridge stock may need to consider corrosion and cracks, as the likelihood of deterioration increases with age. This work accordingly investigates the incorporation of pre-existing anchorage zone corrosion cracks into the finite element modelling of reinforced concrete beam structural behaviour. Three methods of accounting for cracks were applied: (1) modifying the bond stress-slip relation, ( 2) weakening elements at the position of the crack, and (3) weakened discrete crack elements. The results show that modifying the bond stress-slip relation results in accurate predictions of the ultimate capacity when one-dimensional reinforcement bars are used in the model. Weakening elements at the position of the crack provides reasonable results when the anchorage is modelled with three-dimensional reinforcement bars and a frictional bond model. The implementation of discrete cracks was found to be unsuitable for the studied load situation, as compressive stresses formed perpendicular to the crack. It was concluded that the capacity of the studied case could be well estimated based on visual measurements, without knowledge of the exact corrosion level.

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Section: Overview Of Modelling Levels For Anchorage Assessmentmentioning

confidence: 99%

Incorporation of pre-existing longitudinal cracks in finite element analyses of corroded reinforced concrete beams failing in anchorage

Blomfors

Lundgren

Zandi

2020

Structure and Infrastructure Engineering

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Fatigue life prediction method for reinforced concrete deck slabs subjected to repeated moving wheel loads and failing in shear

Kongwang,

Takeda,

Sato

et al. 2024

Structural Concrete

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As bridge deck slabs experience the direct impact of repeated concentrated wheel loads, they are more susceptible to fatigue‐related damage than other bridge components. In this context, a fatigue life prediction method for reinforced concrete (RC) bridge decks has been developed based on failure mechanisms of RC slabs tested under moving wheel loads. Initially, the formulas encompassed shear strength and S–N equations, accommodating variations in environmental and support conditions, are proposed to facilitate the fatigue life prediction of slabs exposed to constant moving wheel load. Subsequently, a model for shear strength degradation formulated using experimental findings on beam‐like elements is utilized in predicting the fatigue life of slabs subjected to stepwise moving wheel loads. The validity of the proposed method was established by comparing its results with previous experimental data. Notably, compared with the existing prediction equation, the proposed method exhibited more accurate fatigue life prediction results.

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NLFEA of Reinforced Concrete Corbels: Proposed Framework, Sensibility Study, and Precision Level

Reginato,

de Sousa,

Santos

et al. 2023

Buildings

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Non-linear finite element analysis (NLFEA) has been frequently used to assess the ultimate capacity of reinforced concrete (RC) structures under the most complex conditions. Nevertheless, the guidelines using such methods to evaluate RC corbels are limited. In addition, the influence of material modeling options regarding the behavior of such members was not investigated until now. This paper proposes to present a framework for the NLFEAs of RC corbels using the Concrete Damaged Plasticity (CDP) model. the influence of several modeling choices related to this constitutive model also is discussed in detail, including the assumed stress–strain behavior in compression and tension and the parameters related to the yield criterion and flow rule. For this, a first set of test results was used to validate the proposed approach to the NLFEA. Afterwards, the sensibility of the numerical results for several modeling choices was investigated. In the end, the proposed framework for the NLFEA was checked against a database of 36 test results from the literature. The mean ratio between the predicted and experimental test results was 1.015 with a coefficient of variation of only 8.57%. The governing failure mechanism of the tests was predicted correctly in approximately 88% of the simulations. In summary, the proposed approach allows for predicting the ultimate capacity and failure mechanism of RC corbels accurately.

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Shear assessment of a reinforced concrete bridge deck slab according to level‐of‐approximation approach

Cited by 3 publications

References 25 publications

Incorporation of pre-existing longitudinal cracks in finite element analyses of corroded reinforced concrete beams failing in anchorage

Incorporation of pre-existing longitudinal cracks in finite element analyses of corroded reinforced concrete beams failing in anchorage

Fatigue life prediction method for reinforced concrete deck slabs subjected to repeated moving wheel loads and failing in shear

NLFEA of Reinforced Concrete Corbels: Proposed Framework, Sensibility Study, and Precision Level

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