Publications by Aurelio Muttoni

Anchorage of reinforcement in concrete corners: Experiments and refined measurements

Aurelio Muttoni, Enrique Corres Sojo, Xianlin Wang

The anchorage of reinforcement in concrete is a complex phenomenon typically governed by several failure modes, including: pull-out failure, splitting, side spalling, edge wedge spalling, and corner spalling, depending on multiple factors. Extensive resear ...

2025

Model uncertainties in action effects and load bearing capacity calculation in statically indeterminate reinforced concrete structures

Alain Nussbaumer, Aurelio Muttoni, Xhemsi Malja

For the dimensioning and assessment of structures, it is common practice to compare action effects with sectional resistances. Extensive studies have been performed to quantify the model uncertainty on the resistance side. However, for statically indetermi ...

Ernst & Sohn2024

Experimental investigation of dowel action in reinforcing bars using refined measurements

Aurelio Muttoni, Marko Pejatovic

In typical reinforced concrete design, reinforcement is designed to carry axial forces, but it can also resist transversal forces by dowel action. This is usually neglected for simplicity's sake in the design phase, but it can be accounted for either expli ...

Ernst & Sohn2024

Local bond-slip model based on mechanical considerations

Aurelio Muttoni, Enrique Corres Sojo

Bond between reinforcing bars and concrete plays a crucial role in the behaviour of reinforced concrete structures, often characterized by the bond stress-slip relationship. Numerous relationships exist in the literature, incorporating various parameters a ...

2024

Verification of shear failures of cantilever bridge deck slabs subjected to concentrated loads

Aurelio Muttoni, Miguel Fernández Ruiz

Shear design and verification of bridge deck slabs subjected to concentrated loads (as those of wheels from traffic) is a topic subjected to scientific and engineering debate, where several questions remain open. Several design procedures have been propose ...

Elsevier Sci Ltd2024

Estimation of the bar stress based on crack width measurements in reinforced concrete structures

Aurelio Muttoni, Enrique Corres Sojo

Estimating the stress of reinforcing bars and its variations in service conditions can be useful to determine the reserve capacity of structures or to assess the risk of fatigue in the reinforcement. This paper investigates the use crack width measurements ...

Ernst & Sohn2024

Steel stresses and shear forces in reinforcing bars due to dowel action

Aurelio Muttoni, Marko Pejatovic

Reinforcing bars in structural concrete are typically designed to carry axial forces. Nevertheless, due to their bending stiffness, the bars can also carry transverse forces, that are associated with the localized bending mechanism (dowel action) resulting ...

2024

Image-based techniques for initial and long-term characterization of crack kinematics in reinforced concrete structures

Aurelio Muttoni, Enrique Corres Sojo

In the recent years, Digital Image Correlation (DIC) was applied with very promising results to monitor cracks in reinforced concrete structures. However, current DIC measurements present some limitations to characterize the existing crack (already present ...

2024

Fibre orientation in SFRC slabs and consequences for punching shear and flexural resistance

Aurelio Muttoni

The use of steel fibre reinforced concrete (SFRC) is a well-known method for enhancing the punching and flexural resistances of flat slabs. The structural performance of SFRC elements depends significantly on the fibre distribution and orientation, which a ...

Elsevier Sci Ltd2024

Stress Fields and Strut-and-Tie Models as a Basic Tool for Design and Verification in Second Generation of Eurocode 2

Aurelio Muttoni, Miguel Fernández Ruiz

Within the frame of the revision of the Eurocode 2 for concrete structures, the section devoted to strut-and-tie design has been up-dated to enhance its applicability, its consistency with other sections and its ease-of-use. As a result, a number of change ...

ASOC ESPANOLA INGENIERIA ESTRUCTURAL-ACHE2023

Flat slab response for seismic and cyclic actions prediction with numerical models

Aurelio Muttoni

As an outcome of a recent European research project, the modelling of the response of flat slab structures for seismic and cyclic loading was the object of a blind competition. No other blind tests are available in the literature on this topic. The test re ...

ELSEVIER SCI LTD2023

Enhancement of the punching shear verification of slabs with openings

Aurelio Muttoni, Júlia Borges Dos Santos

Openings in flat slabs near to columns are often needed to supply the building with utilities. The presence of these openings can lead to a decrease of the punching resistance which is related to (i) the reduction of the control perimeter, (ii) the stress ...

ERNST & SOHN2023

Verification of deflections and cracking of RC flat slabs with numerical and analytical approaches

Aurelio Muttoni

The Serviceability Limit States (SLS) of reinforced concrete structures, where cracking and deflection limits are verified in the design process, are directly related to time-dependent properties of concrete. In this study, the effects of creep and shrinka ...

ELSEVIER SCI LTD2023

Bond of steel reinforcement based on detailed measurements: Results and interpretations

Aurelio Muttoni, Enrique Corres Sojo

Rebar-to-concrete bond is a fundamental aspect of the behavior of reinforced concrete structures. The characterization of the interface response is challenging due to the complexity of the physical phenomena and the large number of factors involved. Locall ...

ERNST & SOHN2023

Punching tests on edge slab-column connections with refined measurements

Aurelio Muttoni, Andri Setiawan

Due to the significant shear forces developing around columns and the potential brittle failure associated, the punching capacity of flat slabs is the main concern at ultimate limit state. An effective way to understand the behaviour of slab-column connect ...

2023

A Mechanical Approach for the Punching Shear Provisions in the Second Generation of Eurocode 2

Aurelio Muttoni, Miguel Fernández Ruiz, Duarte Miguel Viúla Faria, João Tiago Ramos Bernardo de Santa Rita Simões

The revision of a code is a long-term project that shall fulfil several aims, comprising the enhancement of the ease-of-use and incorporating updated state-of-the-art. With respect to the revision of Eurocode 2 concerning the punching shear provisions, thi ...

ASOC ESPANOLA INGENIERIA ESTRUCTURAL-ACHE2023

Model uncertainties and partial safety factors of strain-based approaches for structural concrete: Example of punching shear

Aurelio Muttoni, João Tiago Ramos Bernardo de Santa Rita Simões, Qianhui Yu

The development of mechanical models relating the state of strains and the resistance of reinforced concrete structures has become a trend in the last decades. These types of models are referred to as strain-based approaches. Since strain-based approaches ...

ELSEVIER SCI LTD2023

Considerations on the partial safety factor format for reinforced concrete structures accounting for multiple failure modes

Aurelio Muttoni, Miguel Fernández Ruiz, Qianhui Yu

The increasing usage of nonlinear analyses for the design of reinforced concrete structures and the necessity of codes of practice to provide a consistent safety format for them is one of the challenges that new generations of codes of practice are facing. ...

ELSEVIER SCI LTD2022

A new perspective on the punching resistance of edge columns with and without shear reinforcement applying refined measurement techniques

Aurelio Muttoni, Diego Hernández Fraile

Despite edge columns being instrumental components of flat slabs, most punching research has focused on internal connections. Several particularities of edge columns, such as load eccentricity and moment transfer, require additional experimental investigat ...

Fédération Internationale du Béton (fib)2022

Validation of bond models for the crack width estimation based on detailed measurements

Aurelio Muttoni, Enrique Corres Sojo

Crack formation and development in reinforced concrete structures is a complex mechanism affected by a large number of factors. Typically, the estimation of the crack width as a function of the reinforce-ment stress state is based on simplified assumptions ...

2022