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Miguel Fernández Ruiz

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Related publications (249)

Shear Strength of Arch-Shaped Members without Transverse Reinforcement

Aurelio Muttoni, Miguel Fernández Ruiz, Stefano Campana

Arch-shaped members are used in many reinforced concrete structures such as tunnels, bridges, silos, or offshore constructions. They are generally designed to carry significant axial forces, and, in most cases, are not provided with transverse reinforcemen ...

ACI Structural Journal2014

Assessing punching shear failure in reinforced concrete flat slabs subjected to localised impact loading

Aurelio Muttoni, Miguel Fernández Ruiz, Juan Sagaseta Albajar

Reinforced concrete flat slab structures are used widely in construction projects due to their economic and functional advantages. Punching shear failure in such structures can have catastrophic effects in the case of, for example, multi-storey framed stru ...

Pergamon-Elsevier Science Ltd2014

Punching of flat slabs supported on rectangular columns

Aurelio Muttoni, Miguel Fernández Ruiz, Luca Tassinari, Juan Sagaseta Albajar

This paper investigates the structural behaviour of RC flat slabs supported on rectangular interior columns and the influence of the loading conditions (one or two-way bending) on their punching shear strength. The punching shear strength of slabs at recta ...

Engineering Structures2014

Strength of arch-shaped members in bending and shear

Aurelio Muttoni, Miguel Fernández Ruiz, Stefano Campana

Arch-shaped members are widely used for construction of tunnels, bridges, silos and shells. These members are not typically provided with transverse reinforcement and may thus have a brittle behaviour at failure. When subjected to bending or shear, traditi ...

4th fib Congress, Mumbai2014

On the efficiency of flat slabs strengthening against punching using externally bonded fibre reinforced polymers

Aurelio Muttoni, Miguel Fernández Ruiz, Jürgen Einpaul, António Manuel Pinho Ramos, Duarte Miguel Viúla Faria

One possibility for strengthening existing flat slabs consists on gluing fibre reinforced polymers (FRPs) at the concrete surface. When applied on top of slab–column connections, this technique allows increasing the flexural stiffness and strength of the s ...

Construction and Building Materials2014

Punching resistance and flexural behaviour of continuous flat slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Jürgen Einpaul

The punching resistance of actual reinforced concrete flat slabs is potentially influenced by the compressive membrane action, which may significantly increase their resistance compared to isolated laboratory specimens. However, design codes have been deve ...

Proc. of the 10th fib International PhD Symposium in Civil Engineering, Quebec2014

Interaction between in-plane shear forces and transverse bending moments in concrete bridge webs

Aurelio Muttoni, Miguel Fernández Ruiz, Marie-Rose Backes

This paper investigates a reliable design approach for reinforced concrete panels subjected to the combined action of in-plane shear and out-of-plane bending moments, which develop in webs of boxgirder bridges and similar structures. Neglecting this intera ...

Proc. of the 10th fib International PhD Symposium in Civil Engineering, Quebec2014

Punching strength of actual two-way slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Jürgen Einpaul

Many building codes rely on empirical formulations with respect to the punching shear design provisions. Such empirical equations are typically calibrated on the basis of laboratory tests performed on simplified geometries (usually isolated specimens) with ...

4th fib Congress, Mumbai2014

Background to the fib Model Code 2010 shear provisions - part I: beams and slabs

Aurelio Muttoni, Miguel Fernández Ruiz

This paper examines the evidence for the one-way shear model developed for the fib Model Code for Concrete Structures 2010 and provides examples of its application. For the design and analysis for shear, for members with and without shear reinforcement, th ...

Thomas Telford2013

Behaviour of nodal regions of reinforced concrete frames subjected to opening moments and proposals for their reinforcement

Aurelio Muttoni, Miguel Fernández Ruiz, Stefano Campana

The strength and deformation capacity of concrete frames is typically governed by their nodal regions behaviour. This is particularly relevant for frame corners subjected to opening bending moments, where premature brittle failures may develop depending on ...

Engineering Structures2013

Punching shear design in MC2010: incorporating new knowledge and grounding design expressions on physical models

Aurelio Muttoni, Miguel Fernández Ruiz

Model Code 2010 (MC2010) has presented a deep review on punching shear design with respect to previous versions of Model Code (1978, 1990). These changes have been motivated by the fact that MC2010 is grounded on a physical theory rather than on empirical ...

fib Symposium Tel-Aviv 20132013

Design for punching of prestressed concrete slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Thibault Clément, António Manuel Pinho Ramos

Prestressing in flat slabs helps in controlling deformations and cracking under service loads and allows reducing the required slab thickness, leading thus to more slender structures and being therefore an economic solution for long spans. However, as a co ...

Structural Concrete2013

Assessment of Shear Strength for Existing Bridges with Low Amounts of Shear Reinforcement

Aurelio Muttoni, Miguel Fernández Ruiz, Michael Markus Rupf

Design of concrete girder bridges has significantly evolved during the last decades. This has been particularly relevant with respect to shear design, motivated by changes in actions and design models. As a consequence, assessing the shear strength of exis ...

fib Symposium Tel-Aviv 20132013

Enhanced safety with post-installed shear reinforcement

Aurelio Muttoni, Miguel Fernández Ruiz

The safety of existing concrete slabs against shear may be insufficient for several reasons such as design and construction errors, structural modifications or increased loads. Moreover, the knowledge about shear design has significantly increased over the ...

fib Symposium Tel-Aviv 20132013

Concrete shells – Towards efficient structures: Construction of an ellipsoidal concrete shell in Switzerland

Aurelio Muttoni, Miguel Fernández Ruiz

Concrete shells have been widely used in the past as economical and suitable solutions for a number of structures such as roofs, silos, cooling towers or offshore platforms. Taking advantage of their single or double curvature, bending moments and shear fo ...

Structural Concrete2013

Analysis of shear-transfer actions on one-way RC members based on measured cracking pattern and failure kinematics

Aurelio Muttoni, Miguel Fernández Ruiz, Stefano Campana, Andrea Anastasi

Shear in one-way reinforced concrete (RC) members is transferred in cracked concrete members by a number of actions such as aggregate interlock, residual tensile stresses, dowelling action, inclination of compression chord and transverse reinforcement (if ...

Magazine of Concrete Research2013

Post-tensioned girders with low amounts of shear reinforcement: Shear strength and influence of flanges

Aurelio Muttoni, Miguel Fernández Ruiz, Michael Markus Rupf

Assessing the strength of existing structures has become a major issue for structural engineers. Such analyses are often performed after changes of use of the structure or due to new design codes requirements. This is particularly relevant with respect to ...

Engineering structures2013

Post-Punching Behavior of Flat Slabs

Aurelio Muttoni, Miguel Fernández Ruiz, Yaser Mirzaei

Reinforced concrete flat slabs are a common structural system for cast-in-place concrete slabs. Failures in punching shear near the column regions are typically governing at ultimate. In case no punching shear or integrity reinforcement is placed, failures ...

ACI Structural Journal2013

Background to the Model Code 2010 Shear Provisions - Part II Punching Shear

Aurelio Muttoni, Miguel Fernández Ruiz

This paper outlines the theoretical background of the punching shear provisions implemented in the fib Model Code 2010 and presents a practical example of its applica tion. It is the aim to explain the mechanical model that forms the basis of the punching ...

Structural Concrete, Ernst & Sohn2013

La teoría de la fisura crítica como base teórica para el diseño de losas frente a punzonamiento en el nuevo Código Modelo 2010 (The Critical Shear Crack Theory as a physical model for punching shear design and its implementation into new Model Code 2010)

Aurelio Muttoni, Miguel Fernández Ruiz, Juan Sagaseta Albajar

On April 2010, the first complete draft of new Model Code 2010 was published. It introduced a number of innovative design approaches, some of them with respect to shear and punching shear. Contrary to Model Code 90 (or some national and international codes ...

Hormigón y Acero2012

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