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Detection and Measurement of Matrix Discontinuities in UHPFRC by Means of Distributed Fiber Optics Sensing
Publications associées (35)
Low-tech methods for the reuse of reinforced concrete structural elements
Corentin Jean Dominique Fivet, Maléna Bastien Masse, Nicole Widmer, Julie Rachel Devènes
Most of existing buildings are made of concrete, new buildings are being built with it and others are demolished when still in good structural condition. This drives increased demands for raw materials, greenhouse gas emissions, and an accumulation of demo ...
2023Influence of amount of shear reinforcement and its post-yield response on the shear resistance of reinforced concrete members
Aurelio Muttoni, Miguel Fernández Ruiz, Frédéric Monney
The minimum amount of shear reinforcement to be provided in reinforced concrete members has been a topic of debate and research for decades without reaching a consensus. Defining such values is however instrumental to build in an economic manner and to saf ...
ERNST & SOHN2022Influence of sustained loading on resistance and deformation capacity of reinforced concrete members in compression
Aurelio Muttoni, Xhemsi Malja, Miguel Fernández Ruiz
As acknowledged explicitly or implicitly in most of current design codes, a high level of sustained loading has a detrimental effect on the concrete compressive strength. However, its beneficial effect in terms of deformation capacity is neglected in most ...
ERNST & SOHN2022Validation 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 ...
2022Spalling of concrete cover induced by reinforcement
Aurelio Muttoni, Miguel Fernández Ruiz, Francesco Rafael Alberto Moccia
This paper investigates the phenomenon of cover spalling in reinforced concrete induced by bond or by the action of an inner pressure. This research is based on an experimental programme comprising a series of bond tests and a series of tests with inner-pr ...
2021Concrete dam AAR numerical modelling and stress relief measures
In Switzerland, the peak period for the construction of large hydropower plants dates back than 50 years ago. Only in the '80s a reaction was discovered, which generates internal swelling of the concrete and causes permanent damage to the structures. The r ...
2021Multi-scale modeling of aggregate interlock phenomena in concrete
In concrete structures, opened cracks contribute significantly to the transfer of shear and normal stresses through the contact forces occurring between fractured surfaces. Such contact forces are due to protruding asperities, engaged by interlocking and f ...
EPFL2021FATIGUE EXAMINATION OF REINFORCED-CONCRETE BRIDGE SLABS USING ACOUSTIC EMISSION AND STRAIN MONITORING DATA
The examination of bridges under service loading is key for understanding their condition and thus for their sustainable and efficient use. The need to extend the service duration of existing bridges is increasing, and therefore, efficient tools for examin ...
EPFL2021An interlocking approach for the rebar-to-concrete contact in bond
Aurelio Muttoni, Miguel Fernández Ruiz, Max Tirassa
The bond response of deformed bars in structural concrete is a phenomenon governed, to a large extent, by the rib-to-concrete contact and interaction, with contact forces depending on both material properties and the kinematics between the contact surfaces ...
ICE PUBLISHING2021Numerical Generation and Contact Analysis of Rough Surfaces in Concrete
Guillaume Anciaux, Mohit Pundir
In concrete structures, opened cracks contribute significantly to the transfer of shear and normal stresses through the contact forces occurring between fractured surfaces. Such contact forces are due to protruding asperities, engaged by interlocking and f ...
JAPAN CONCRETE INST2021