Publications de Michele Godio | EPFL Graph Search

The ratio of shear to elastic modulus of in-plane loaded masonry (vol 53, 40, 2020)

Katrin Beyer, Bastian Valentin Wilding, Michele Godio

A correction to this paper has been published: https://doi.org/10.1617/s11527-021-01653-6 ...

SPRINGER2021

Investigating the cracking of plastered stone masonry walls under shear–compression loading

Katrin Beyer, Amir Rezaie, Michele Godio

Cracks are the most important source of information about the damage that occurs to unreinforced masonry piers under seismic actions. To predict the structural state of unreinforced masonry piers after an earthquake, research models have been developed to ...

2021

Comparison of crack segmentation using digital image correlation measurements and deep learning

Radhakrishna Achanta, Katrin Beyer, Amir Rezaie, Michele Godio

Reliable methods for detecting pixels that represent cracks from laboratory images taken for digital image correlation (DIC) are required for two main reasons. Firstly, the segmented crack maps are used as an input for some DIC methods that are based on di ...

2020

The ratio of shear to elastic modulus of in-plane loaded masonry

Katrin Beyer, Bastian Valentin Wilding, Michele Godio

When designing unreinforced masonry buildings, the wall stiffness and, consequently, the masonry elastic and shear modulus E and G are essential parameters. Current codes provide empirical estimates of the masonry elastic modulus and a ratio between the sh ...

2020

Crack Segmentation Using Digital Image Correlation (DIC) and Image Processing

Katrin Beyer, Francesco Vanin, Amir Rezaie, Michele Godio

2020

Experimental investigation of strength, stiffness and drift capacity of rubble stone masonry walls

Katrin Beyer, Amir Rezaie, Michele Godio

There is limited available research on rubble stone masonry walls, which are vulnerable under seismic loading. This paper presents an experimental campaign of cyclic shear compression tests on six large-scale walls of this topology. The effect of the axial ...

2020

Quantifying the out-of-plane response of unreinforced masonry walls subjected to relative support motion

Katrin Beyer, Michele Godio

The supports of out-of-plane loaded unreinforced masonry walls in buildings are subjected to a motion that is filtered and amplified by the building structure and, in some cases, can be significantly different from the ground motion. Moreover, because thes ...

2019

Trilinear Model for the Out-of-Plane Seismic Assessment of Vertically Spanning Unreinforced Masonry Walls

Katrin Beyer, Michele Godio

Out-of-plane failure of masonry walls is often responsible for the partial collapse of unreinforced masonry structures. Modeling the out-of-plane response of these walls is therefore key in the assessment of existing buildings. The paper presents a new tri ...

2019

Quasi-static shear-compression tests on stone masonry walls with plaster: Influence of load history and axial load ratio

Katrin Beyer, Shenghan Zhang, Francesco Vanin, Michele Godio

This paper describes quasi-static cyclic shear-compression tests on six plastered single-leaf stone masonry walls. Of the six walls, four are tested under different axial load ratios, performing a cyclic load history with two cycles per increasing drift de ...

2019

Shear to elastic modulus ratio in unreinforced masonry

Katrin Beyer, Bastian Valentin Wilding, Michele Godio, Leilah Yadia Kelly Sory

In the seismic design of unreinforced masonry walls, the elastic modulus E and shear modulus G are essential parameters for the calculation of the in-plane wall stiffness. Current codes provide empirical estimates of the elastic modulus and furthermore a r ...

2019

Modelling of out-of-plane loaded vertically spanning unreinforced masonry walls under static and dynamic loading: comparison between four modelling approaches

Katrin Beyer, Michele Godio

2018

Evaluation of force-based and displacement-based out-of-plane seismic assessment methods for unreinforced masonry walls through refined model simulations

Katrin Beyer, Michele Godio

The performance of force-based and displacement-based seismic assessment methods for the life-safety limit state check of out-of-plane loaded unreinforced masonry walls is evaluated on the basis of refined numerical simulations. For this purpose, a discret ...

2018

Effects of the dilatancy of joints and of the size of the building blocks on the mechanical behavior of masonry structures

Michele Godio

2018

Tri-linear model for the out-of-plane seismic assessment of unreinforced masonry walls

Katrin Beyer, Michele Godio

A new model describing the response of vertically-spanning unreinforced masonry walls subjected to out-of-plane loading is presented. The model approximates the real behaviour of the walls by a tri-linear force-displacement relationship, which is suitable ...

2018

Simplified micro-modelling of shear-compression stone masonry walls and their interaction with plaster

Katrin Beyer, Dionysia Michalogianni, Bastian Valentin Wilding, Michele Godio

The performance of shear-compression stone masonry walls with regard to their interaction with plaster is investigated by means of numerical simulations. A 3D finite element model based on the simplified micro-modelling technique is developed for the mason ...

2018

Seismic retrofit of cultural heritage buildings – when less is more

Katrin Beyer, Francesco Vanin, Michele Godio, Andrea Penna

In 1356, Basel was subjected to an earthquake with an estimated magnitude of 6.6; it is the largest known historical earthquake in central northern Europe. During this earthquake and the fire that followed large parts of Basel were destroyed. Such an event ...

2017

Analytical model for the out-of-plane response of vertically spanning unreinforced masonry walls

Katrin Beyer, Michele Godio

An analytical model describing the flexural response of vertically spanning out-of-plane loaded unreinforced masonry walls is presented in this paper. The model is based on the second-order Euler-Bernoulli beam theory and captures important characteristics ...

Wiley-Blackwell2017

Current methodologies of out-of-plane seismic assessment of unreinforced masonry walls: Evaluation through refined model simulations

Katrin Beyer, Michele Godio

2017