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Pierino Lestuzzi

Cette personne a quitté l’EPFL

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Publications associées (141)

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Seismic assessment of a historical masonry building in Switzerland: the “Ancien Hôpital de Sion”

Pierino Lestuzzi, Angelo Garofano

The paper presents the results of the evaluation of the seismic safety of the Ancien Hôpital de Sion, an important Swiss architectural heritage building, sited in the Canton of Valais, the region with the highest seismic hazard in Switzerland. Three-dimens ...

Taylor & Francis Inc2016

Data-Interpretation methodologies for Non-Linear Earthquake Response Predictions of Damaged Structures

Ian Smith, Pierino Lestuzzi, Yves Sylvain Gilles Reuland

Seismic exposure of buildings presents difficult engineering challenges. The principles of seismic design involve structures that sustain damage and still protect inhabitants. Precise and accurate knowledge of the residual capacity of damaged structures is ...

2017

Damage prediction for regular reinforced concrete buildings using the decision tree algorithm

Pierino Lestuzzi, Amin Karbassi

To overcome the problem of outlier data in the regression analysis for numerical-based damage spectra, the C4.5 decision tree learning algorithm is used to predict damage in reinforced concrete buildings in future earthquake scenarios. Reinforced concrete ...

Elsevier2014

Deriving fragility functions from bilinearized capacity curves for earthquake scenario modelling using the conditional spectrum

Pierino Lestuzzi, Pia Hannewald

The development of fragility curves to perform seismic scenario-based risk assessment requires a fully probabilistic procedure in order to account for uncertainties at each step of the computation. This is especially true when developing fragility curves c ...

SPRINGER2018

Experimental investigations of a new highly ductile hold-down with adaptive stiffness for timber seismic bracing walls

Pierino Lestuzzi

An efficient implementation of the capacity design requires high ductility combined with a low overstrength of the critical regions. Conventional timber connections do not generally offer such ideal combination, resulting in modest behaviour and relatively ...

SPRINGER2023

Fling-step effect on the seismic behavior of high-rise RC buildings during the Christchurch earthquake

Pierino Lestuzzi, Amin Karbassi

Fling-step and forward directivity, which can impose unexpected seismic demands on structures, are the main consequences of near-fault earthquakes. Although the adverse effect of forward directivity on structures behavior is determined to some level, the i ...

2013

Usefulness of ambient-vibration measurements for seismic assessment of existing structures

Ian Smith, Pierino Lestuzzi, Yves Sylvain Gilles Reuland

A large number of buildings in regions with low to medium seismic hazard have been designed without considering earthquake actions. Retrofitting of all buildings that fail to meet modern code requirements is economically, technically and environmentally un ...

2017

Validation and improvement of Risk-UE LM2 capacity curves for URM buildings with stiff floors and RC shear walls buildings

Pierino Lestuzzi, Angelo Garofano

This paper addresses seismic vulnerability assessment at an urban scale and more specifically the capacity curves involved for building damage prediction. Standard capacity curves are a function of predefined building typology and are proposed in the Risk- ...

2017

Vulnerability Assessment of Buildings in Ranau Township: Methodological Design

Pierino Lestuzzi

Structural damage usually happens during earthquake events. This had caused damage of properties and even worse, loss of lives. Usually, the greatest losses were not caused by the quake specifically, but rather because of the fall of the structures. The vu ...

UKM PRESS2019

Simplified non-linear seismic displacement demand prediction for low period structures

Pierino Lestuzzi

The prediction of non-linear seismic demand using linear elastic behavior for the determination of peak non-linear response is widely used for seismic design as well as for vulnerability assessment. Existing methods use either linear response based on init ...

Springer Verlag2014

Building typological classification in Switzerland using deep learning methods for seismic assessment

Annalisa Casciato, Pierino Lestuzzi, Alireza Khodaverdian

Natural disasters, such as earthquakes, have always represented a danger to human life. Seismic risk assessment consists of the evaluation of existing buildings and their expected response in case of an earthquake; the exposure model of buildings plays a k ...

Elsevier2023

Probabilistische Schadens-szenarien für den Kanton Basel-Stadt

Adrien Nabil Forcada, Pierino Lestuzzi, Christine Tobler

Dieser Beitrag präsentiert die Berechnung und Ergebnisse von drei Schadensszenarien für den Kanton Basel-Stadt. Bei der Berechnung wurden vorhandene Modelle für die Analyse der Bodenbewegungen und der Gebäudeverletzbarkeit mit einem probabilistischen Ansat ...

2019

Static cyclic response of masonry walls retrofitted with fiber-reinforced polymers

Pierino Lestuzzi, Marc Badoux, Mohamed Elgawady

The behavior of seven one-half scale masonry specimens before and after retrofitting using fiber-reinforced polymer (FRP) is investigated. Four walls were built using one-half scale hollow clay masonry units and weak mortar to simulate walls built in centr ...

American Society of Civil Engineers2007

Shear strength of URM walls retrofitted using FRP

Pierino Lestuzzi, Marc Badoux, Mohamed Elgawady

This paper compares different models currently used to calculate the shear strength of unreinforced masonry (URM) walls retrofitted using fiber reinforced polymers (URM-FRP). The shear strengths of six recently tested URM-FRP walls were compared to shear s ...

Elsevier2006

Seismic vulnerability assessment of “Sion cathedral” (Switzerland): an integrated approach to detect and evaluate local collapse mechanisms in heritage buildings

Pierino Lestuzzi, Yves Sylvain Gilles Reuland, Lorenzo Diana

Seismic assessment of existing heritage buildings remains a challenging task. There is a high level of complexity and uncertainty compared with the assessment of standard buildings. Heritage masonry churches are usually prone to partial collapses during ea ...

2017

Structural Resilience through Model-Based Data Interpretation: From Building to City-Scale Post-Seismic Assessment

Ian Smith, Pierino Lestuzzi, Yves Sylvain Gilles Reuland, Lorenzo Diana

Earthquake-design approaches in regions with low to medium seismic hazard often focus on the protection of inhabitants. Therefore, some structural damage is accepted. In addition, large parts of the building stock have usually been built without considerin ...

Research Publishing2018

Coupled seismogenic geohazards in Alpine regions

Lyesse Laloui, Pierino Lestuzzi, Alessio Ferrari, Fabrice Dupray, Amin Karbassi, Cyrill Silvan Baumann

COupled seismogenic GEohazards in Alpine Regions (COGEAR) is an interdisciplinary natural hazard project investigating the hazard chain induced by earthquakes. It addresses tectonic processes and the related variability of seismicity in space and time, ear ...

2012

Development and Application of Damage Spectra to Evaluate the Seismic Performance of Reinforced Concrete Buildings in Greece

Pierino Lestuzzi, Amin Karbassi

Damage spectra for reinforced concrete buildings in Greece are presented in this paper based on a series of time-history nonlinear dynamic analyses for single-degree-of-freedom systems (Clough hysteresis model) with different deformation ductility and yiel ...

2011

Seismic vulnerability assessment at urban scale for two typical Swiss cities using Risk-UE methodology

Pierino Lestuzzi, Angelo Garofano, Patrick Bischof

This paper contains a seismic assessment at urban scale of the cities of Sion and Martigny in Switzerland. These two cities have been identified for the present research based on their importance regarding size and the characteristics of the building stock ...

Springer2016

Fragility functions for seismic risk in regions with moderate seismicity

Pierino Lestuzzi, Marcelo Rafael Oropeza Ancieta

Current seismic risk evaluations are mostly based on approximate vulnerability curves. Damage prediction is improved by considering structural characteristics of building. Such improved fragility functions do not exist for many structures, especially in co ...

2010