document

Non-destructive material evaluation of a reinforced concrete viaduct: a practical methodology

Wilgenburg, Gert (author)

The use of non-destructive tests for assessing the material status of concrete structures in the Netherlands remains relatively uncommon, despite the growing demand for the preservation of existing structures under the VenR policy of Rijkswaterstaat. Skepticism towards NDTs is reflected in the scarcity of documented case studies in publicly...

master thesis 2024

document

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

document

Upscaling architected metamaterials for applications in civil infrastructure: auxetic lattices for confining concrete

Schagen, Brian (author)

The current understanding of auxetic metamaterials in structural engineering applications is limited. Auxetic materials exhibit lateral contraction under compressive loads, possessing a negative Poisson's ratio. The research addresses this gap, focusing on the use of auxetics for steel reinforcement in structural concrete elements to enhance...

master thesis 2023

document

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

document

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

document

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

document

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

document

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

document

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

document

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

document

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

document

Feature extraction of GPR data for the classification of reflectors in reinforced concrete

Gierens, Lena (author)

During their service live reinforced and prestressed concrete structures experience deterioration. Therefore, to effectively assure the safety and durability of the compounds, non destructive testing methods, such as Ground Penetrating Radar, employed at high frequencies, provide a rapid assessment of the geometry of the compound. Although...

master thesis 2020

document

Optimizing the concrete load-bearing structure of high-rise buildings: Combining the ground structure method with a recursive resizing algorithm on a case study

Gerritsen, Wouter (author)

Theshortage in housing and office spaces, combined with the desire of people tolive in densely populated cities results in a lack of space. A proposedsolution can be found in the usage of high-rise buildings. Nowadays there ismore awareness for the environment, thus this research tries to reduce theenvironmental impact of a...

master thesis 2020

document

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

document

Skewed slab highway bridges: A parametric study on the design of reinforced concrete, simply supported skewed slab highway bridges

Hulsebosch, Coen (author)

In situations with spatial limitations where a bridge is desired, a skewed bridge is a solution. The bridge deck of a skewed bridge has the shape of a parallelogram, in which the angle that remains in the acute corners is defined as the skew angle. This thesis focuses on the design of reinforced concrete skewed slab highway bridges that are...

master thesis 2019

document

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

document

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

document

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

document

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

document

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