Publication

Performance of reinforced concrete walls under seismic loading—Research projects at EPFL and future research needs

2014
Talks

Abstract

Reinforced concrete (RC) walls are frequently used as lateral stiffness and strength-providing members in RC buildings. If well detailed and designed according to capacity design rules, RC walls can lead to a very robust behavior and stable cyclic response under seismic loading. Moreover, they are often better suited to control inter-story drifts than RC frames, limiting hence better than frames the extent of non-structural damage. Recent earthquakes in Chile (2010) and New Zealand (2011) revealed, however, several unexpected failure modes of RC wall buildings which have not been accounted for in design. Ongoing research projects at the Earthquake Engineering and Structural Dynamics Laboratory of EPFL address some of the observed failure modes. The paper describes ongoing research projects, presents first results and discusses future research needs with regard to the seismic design of RC walls.

Official source

https://infoscience.epfl.ch/entities/publication/d7e3d9ca-5cb5-482e-aaec-48035003d0fe

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2014
Talks

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d7e3d9ca-5cb5-482e-aaec-48035003d0fe

About this result

Related concepts (17)

Earthquake engineering

Earthquake engineering is an interdisciplinary branch of engineering that designs and analyzes structures, such as buildings and bridges, with earthquakes in mind. Its overall goal is to make such structures more resistant to earthquakes. An earthquake (or seismic) engineer aims to construct structures that will not be damaged in minor shaking and will avoid serious damage or collapse in a major earthquake. A properly engineered structure does not necessarily have to be extremely strong or expensive.

Seismic retrofit

Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged. Prior to the introduction of modern seismic codes in the late 1960s for developed countries (US, Japan etc.) and late 1970s for many other parts of the world (Turkey, China etc.

Seismic analysis

Seismic analysis is a subset of structural analysis and is the calculation of the response of a building (or nonbuilding) structure to earthquakes. It is part of the process of structural design, earthquake engineering or structural assessment and retrofit (see structural engineering) in regions where earthquakes are prevalent. As seen in the figure, a building has the potential to 'wave' back and forth during an earthquake (or even a severe wind storm). This is called the 'fundamental mode', and is the lowest frequency of building response.

Related publications (12)

Performance of reinforced concrete walls under seismic loading—Research projects at EPFL and future research needs

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