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Lessons learned from a prediction and postdiction of a shake table test on an unreinforced masonry aggregate

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Modern unreinforced masonry buildings with reinforced concrete slabs are often retrofitted by inserting reinforced concrete walls. The main advantages of this technique are the increase in strength and displacement capacity with respect to masonry structur ...

Taylor & Francis2015

Force-displacement response of unreinforced masonry walls for seismic design

Sarah Petry

In regions with low to moderate seismicity, unreinforced masonry (URM) is commonly used for the construction of low to mid-rise buildings. When these structures are subjected to seismic loading, the stiff URM walls attract considerable part of the lateral ...

EPFL2015

Scaling unreinforced masonry for reduced-scale seismic testing

Katrin Beyer, Sarah Petry

When testing multi-storey structures, most testing facilities require the testing of a reduced-scale model. A literature review on tests of scaled masonry structural components revealed that scaling of masonry was rather challenging and often significant d ...

Springer Verlag2014

Towards displacement-based seismic design of modern unreinforced masonry structures

Katrin Beyer, Sarah Petry, Alessandro Paparo, Marco Tondelli

Unreinforced masonry (URM) structures are known to be rather vulnerable to seismic loading. Modern URM buildings with reinforced concrete (RC) slabs might, however, have an acceptable seismic performance for regions of low to moderate seismicity. In partic ...

Springer2014

Scaling unreinforced masonry structures with hollow-core clay bricks for laboratory testing

Katrin Beyer, Sarah Petry

For a shake table test on a four-storey structure with both unreinforced hollow-core brick masonry (URM) walls and reinforced concrete (RC) walls, the test unit had to be constructed at half-scale. While past experience showed that testing RC structural el ...

2013

A meso-scale computational approach to dynamic failure in concrete

Leonardo Snozzi

The aim of the present thesis is to provide a numerical tool for the mechanical modeling of dynamic failure in concrete. This widely used construction material is characterized by a non-linear failure behavior, which is consequently difficult to describe w ...

EPFL2013

Quasi-static monotonic and cyclic tests on composite spandrels

Katrin Beyer, Alessandro Dazio

In modern unreinforced masonry (URM) walls, the vertical piers are connected at the storey levels by reinforced concrete (RC) ring beams or RC slabs. Particularly, in the outer walls, the spandrel element also includes a masonry spandrel on top of the RC b ...

Earthquake Engineering Research Inst2012

The World Health Organization Headquarters in Geneva (1960-1966): how mechanical and electrical services are integral to reading built form

Giulia Marino

The permanent headquarters of the World Health Organizatio, in Geneva, is recognised as one of the major works of Jean Tschumi, who won the international competition in 1960. Shaped by the imposing linear block housing the Secretariat and the Conference Ha ...

Picard2012

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In the second half of the 20th century, the majority of residential buildings in Switzerland have been built with unreinforced brick masonry walls and reinforced concrete floors. Following a re-evaluation of the seismic hazard in Switzerland, a country of ...

2010