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

Publications associées (17)

Foreword to the special issue "Adjacent Interacting Masonry Structures"

This special issue focuses on the seismic performance of adjacent interacting masonry structures, particularly in historical European city centers. The AIMS project provided unique data on interacting masonry structures through large-scale shake table test ...

SPRINGER2024

Experimental and numerical evaluation of a U-shaped thin lightly reinforced concrete wall tested under cyclic loading

Katrin Beyer

Reinforced concrete walls provide effective bracing against seismic lateral loading for buildings worldwide. In Latin America, seismic design provisions commonly adhere to the ACI 318 building code, which is predominantly based on United States constructio ...

2024

The new Chapter 9 of Eurocode 8 Part 3 for Seismic Assessment of Existing Steel Structures

Dimitrios Lignos

The seismic assessment of existing steel structures necessitates the development of practice- oriented engineering models for use in nonlinear static and dynamic analysis procedures. These models should encompass the full range of the anticipated nonlinear ...

2023

Seismic performance of steel columns interacting with embedded column bases while exhibiting inelastic deformations

Dimitrios Lignos, Hiroyuki Inamasu

Observations from past earthquakes indicate that embedded column bases (ECBs) in steel moment resisting frames (MRFs) exhibited inelastic deformations while they were designed to be non-dissipative. Consequently, the amount of inelastic damage concentrated ...

ELSEVIER SCI LTD2022

Numerical simulations of retrofitting interventions on timber floors in unreinforced masonry

Katrin Beyer, Igor Tomic, Ivana Bozulic

Unreinforced masonry buildings with flexible timber floors are amongst the most vulnerable building typologies for seismic loading. Though flexible diaphragms play a role in the seismic behaviour of unreinforced masonry buildings, the impact of the connect ...

2022

Seismic design of non-dissipative embedded column base connections

Dimitrios Lignos, Hiroyuki Inamasu

Embedded Column Base (ECB) connections in seismically resistant steel moment frames are commonly designed to be stronger than the connected column, to protect them from inelastic actions. This relies on estimation of demands induced by the column and the s ...

2021

Vibration Suppression Through Variable Stiffness and Damping Structural Joints

Gennaro Senatore

This paper introduces a new semi-active strategy for vibration control of truss and frame structures equipped with variable stiffness and damping joints which consist of a shape memory polymer (SMP) core reinforced by an SMP-aramid composite skin. When the ...

2020

Seismic retrofit of cultural heritage buildings – when less is more

Katrin Beyer, Michele Godio, Francesco Vanin

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

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

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

Modelling approaches for inelastic behaviour of RC walls: Multi-level assessment and dependability of results

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

The severe damage and collapse of many reinforced concrete (RC) wall buildings in the recent earthquakes of Chile (2010) and New Zealand (2011) have shown that RC walls did not perform as well as required by the modern codes of both countries. It seems the ...

Springer2016

Development of a displacement-based design approach for modern mixed RC-URM wall structures

Katrin Beyer, Alessandro Paparo

The recent re-assessment of the seismic hazard in Europe led for many regions of low to moderate seismicity to an increase in the seismic demand. As a consequence, several modern unreinforced masonry (URM) buildings, constructed with reinforced concrete (R ...

Techno-Press2015

Role of filling materials in a P-wave interaction with a rock fracture

Jian Zhao, Wei Wu

The purpose of this study is to investigate the role of filling materials (e.g., quartz sand and kaolin clay) in the interaction between a P-wave and a rock fracture. The specific fracture stiffness reflects the seismic response of a filled fracture, while ...

Elsevier2014

On the Use of CFRP Sheets for the Seismic Retrofitting of Masonry Walls and the Influence of Mechanical Anchorage

Pierino Lestuzzi, Patrick Bischof

This work reports the outcomes of an extensive experimental campaign on the retrofitting of masonry walls by means of carbon fiber reinforced polymer (CFRP) sheets, carried out at University of Applied Sciences (UAS) Fribourg. In the first stage, static-cy ...

Mdpi Ag2014

Seismic Behavior of Poorly Detailed RC Bridge Piers

Pia Hannewald

Existing bridges may have been designed and constructed according to codes without any provisions for seismic design and detailing. Particularly in countries with moderate seismicity, such as Switzerland, modern seismic design standards might have been int ...

EPFL2013

Fragility Analysis of Existing Unreinforced Masonry Buildings through a Numerical-based Methodology

Pierino Lestuzzi, Amin Karbassi

As an approach to the problem of seismic vulnerability evaluation of existing buildings using the predicted vulnerability method, numerical models can be applied to define fragility curves of typical buildings which represent building classes. These curves ...

2012

New analytical fragility curves for existing URM buildings in regions with moderate seismicity

Pierino Lestuzzi, Marcelo Rafael Oropeza Ancieta

Seismic risk in regions with moderate seismicity, such as Switzerland, was largely underestimated. A vast majority of existing buildings have been built without specific earthquake resistant features and do not meet modern requirements. Although several pr ...

8IMC-publications2010