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Maximum Drift Demands of Earthquake Damaged Reinforced Concrete Columns Based on Residual Flexure Cracks

Aydin, B.B. (author), Binici, Baris (author), Aktas, Saime Selin (author), Hendriks, M.A.N. (author), Tuncay, Kagan (author)

Assessment of existing reinforced concrete (RC) structures after an earthquake is a challenging task that must somehow relate qualitative and quantitative observations in the plastic hinge regions and the associated residual deformation capacity of damaged structures. Having an estimate available for the remaining drift capacity will result...

journal article 2024

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A two-phased modelling approach for corrosion-induced concrete cracking and bond deterioration in reinforced concrete

Van Steen, C. (author), Van Beirendonck, T. (author), Vrijdaghs, R. (author), Hendriks, M.A.N. (author), Verstrynge, E. (author)

Bond deterioration is one of the major consequences of reinforcement corrosion in reinforced concrete (RC) structures. In this paper, a two-phased numerical modelling approach is presented that aims to determine the constitutive behaviour (bond–slip) at the reinforcement-concrete interface at a certain corrosion level. The novelty of the...

journal article 2023

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Modelling fracture due to corrosion and mechanical loading in reinforced concrete

Alfaiate, J. (author), Sluys, Lambertus J. (author), Costa, A. (author)

Corrosion in reinforced concrete is an important feature which can lead to increased deformation and cracking, as well as to premature failure. In the present work, macro-mechanical modelling of corrosion is performed, namely the degradation of bond–slip between concrete and steel. A mixed-mode damage model is adopted, in which the...

journal article 2023

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Influence of the anchorage shear hysteresis on the seismic response of nonstructural components in RC buildings

Rojas, D. (author), Quintana Gallo, P. (author), Pürgstaller, A. (author), Bianchi, S. (author), Ciurlanti, J. (author), Pampanin, S. (author), Bergmeister, K. (author)

This article presents a numerical study on the influence of the anchorage shear hysteresis on the seismic response of nonstructural components (NSC) connected to multi-storey reinforced concrete (RC) buildings, and of the anchorage itself. To cover a variety of different types of shear hysteresis shapes, this contribution considered the...

journal article 2023

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Toward identifying the ASR-induced stresses from displacement measurements and crack observations—Demonstration on a beam bridge in Norway

Kongshaug, Simen Sørgaard (author), Hendriks, M.A.N. (author), Kanstad, Terje (author), Markeset, Gro (author)

Alkali–silica reaction (ASR) in concrete causes expansion and degradation of the material, which might give adverse structural consequences. From the structural engineer point view, the greatest concern is if ASR leads to loss of structural integrity. Two natural questions arise when assessing existing concrete structures affected by ASR: (1)...

journal article 2022

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Coupled effects of corrosion damage and sustained loading on the flexural behavior of RC beams strengthened with CFRP anchorage system

Pan, Tanbo (author), Zheng, Yonglai (author), Zhou, Yujue (author), Liu, Yongcheng (author), Yu, Kunlong (author), Zhou, Y. (author)

This paper presents the results of an experimental study on the flexural behavior of carbon fibre reinforced polymer (CFRP) anchorage system strengthened reinforced concrete (RC) beams under the coupled effects of corrosion damage and sustained loading. The test beams were subjected to combined accelerated corrosion in 5% NaCl solution and...

journal article 2022

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Influence of different corrosion solutions on reinforced concrete by DIC and traditional strain test

Wang, XiaoX (author), Liu, JiaP (author), Zhong, PeiH (author)

When the corrosion expansion stress of the steel reinforcement exceeds the ultimate tensile strength of the concrete, the concrete will crack and eventually cause structural damage. Therefore, direct characterization methods of steel corrosion expansion stress can help predict the concrete cracking time, prevent corrosion expansion and repair...

conference paper 2021

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Load effects in reinforced concrete beam bridges affected by alkali–silica reaction—Constitutive modelling including expansion, cracking, creep and crushing

Kongshaug, Simen Sørgaard (author), Larssen, Rolf Magne (author), Hendriks, M.A.N. (author), Kanstad, Terje (author), Markeset, Gro (author)

Material modelling, from the micro to the macro level, of concrete affected by alkali–silica reaction (ASR) has been devoted a lot of research. However, the application of the material models in structural analyses of reinforced concrete (RC) structures, showing the structural implications/consequences of ASR, has got little attention in the...

journal article 2021

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Extended CSDT model for shear capacity assessments of bridge deck slabs

de Sousa, Alex M.D. (author), Lantsoght, E.O.L. (author), Yang, Y. (author), El Debs, Mounir K. (author)

The shear strength evaluation of reinforced concrete bridge deck slabs by accurate models can indicate strength reserves and avoid costly operations necessary for the extension of their lifetime. This article introduces an approach that extends the Critical Shear Displacement Theory model (CSDT) for reaching higher levels of approximation of...

journal article 2021

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Neural network-based formula for shear capacity prediction of one-way slabs under concentrated loads

Abambres, Miguel (author), Lantsoght, E.O.L. (author)

According to the current codes and guidelines, shear assessment of existing reinforced concrete slab bridges sometimes leads to the conclusion that the bridge under consideration has insufficient shear capacity. The calculated shear capacity, however, does not consider the transverse redistribution capacity of slabs, and thus leads to overly...

journal article 2020

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Stop Criteria for Flexure for Proof Load Testing of Reinforced Concrete Structures

Lantsoght, E.O.L. (author), Yang, Y. (author), van der Veen, C. (author), Hordijk, D.A. (author), de Boer, A (author)

Existing bridges with large uncertainties can be assessed with a proof load test. In a proof load test, a load representative of the factored live load is applied to the bridge at the critical position. If the bridge can carry this load without distress, the proof load test shows experimentally that the bridge fulfills the requirements of the...

journal article 2019

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Improvements of a Nonlinear Analysis Guideline for the Re-examination of Existing Urban Concrete Structures

De Boer, Ane (author), Hendriks, M.A.N. (author), Lantsoght, E.O.L. (author)

The Dutch Ministry of Infrastructure and the Environment is concerned with the safety of existing infrastructure and expected re-analysis of a large number of bridges and viaducts. Nonlinear finite element analysis can provide a tool to assess safety; a more realistic estimation of the existing safety can be obtained. <br/>Dutch Guidelines,...

conference paper 2019

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On the Potential of Lattice Type Model for Predicting Shear Capacity of Reinforced Concrete and SHCC Structures

Lukovic, M. (author), Yang, Y. (author), Schlangen, E. (author), Hordijk, D.A. (author)

Different analytical models exist to predict the shear strength of reinforced concrete members. Generally, each of these shear strength models consists of a formulation based on certain underlying theory and fitted model coefficients. The model fitting parameters are usually established from the comparison with test data. Hence, the predictive...

conference paper 2018

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An innovative approach to control steel reinforcement corrosion by self-healing

Koleva, D.A. (author)

The corrosion of reinforced steel, and subsequent reinforced concrete degradation, is a major concern for infrastructure durability. New materials with specific, tailor-made properties or the establishment of optimum construction regimes are among the many approaches to improving civil structure performance. Ideally, novel materials would...

journal article 2018

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Deflections and Natural Frequencies as Parameters for Structural Health Monitoring: The Effect of Fatigue and Corrosion on the Deflections and the Natural Frequencies of Reinforced Concrete Beams

Veerman, R.P. (author)

The Dutch road infrastructure contains a large number of concrete bridges and viaducts. Malfunction of these bridges and viaducts has large financial consequences. To avoid malfunctions of bridges, bridges need to be inspected frequently and actions should be taken when required. The reliability of the inspections of the health of a bridge could...

doctoral thesis 2017

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Extended Strip Model for slabs subjected to load combinations

Lantsoght, E.O.L. (author), van der Veen, C. (author), de Boer, A (author)

The loads that are used for the assessment of existing reinforced concrete slab bridges are the self-weight, superimposed loads, and distributed and concentrated live loads. As such, the shear capacity of reinforced concrete slabs under a combination of distributed and concentrated live loads is a topic of practical relevance. For slabs...

journal article 2017

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Preliminary study of life cycle cost of preventive measures and repair options for corrosion in concrete infrastructurecorrosion in concrete infrastructure

Polder, R.B. (author), Pan, Yifan (author), Courage, Wim (author), Peelen, Willy H A (author)

Maintenance costs of reinforced concrete infrastructure (bridges, tunnels, harbours, parking structures) are increasing due to aging of structures under aggressive exposure. Corrosion of reinforcement due to chloride ingress is the main problem for existing structures in marine and de-icing salt environments. Corrosion cannot be ruled out...

journal article 2016

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Modified Hydrotalcites as Smart Additives for Improved Corrosion Protection of Reinforced Concrete

Yang, Z. (author)

Corrosion of reinforcing steel is a major culprit to durability and serviceability of concrete structures. This problem is highly relevant for civil engineering structures in the transport sector, such as bridges, tunnels, harbour quays and parking structures. The dominant aggressive external influence is the chloride load from de-icing salts or...

doctoral thesis 2015

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Failure in plain and reinforced concrete - An analysis of crack width and crack spacing

Sluys, L.J. (author), De Borst, R. (author)

journal article 1996

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A survey of plasticity and damage-based models for FE analysis of fracture in concrete

Feenstra, P.H. (author), De Borst, R. (author)

conference paper 1995