Annual Graphics Competition Winners

2013 Winner:

Cesar Arredondo (UNAM – Mexico D.F.)

This graphic compares the dynamic behavior of buildings during earthquakes with the ups and downs in a roller coaster. Actually, many existing buildings are unable to withstand representative seismic loads due to their current strength and/or stiffness. Each one of the characters of the graph represents common buildings with unsuitable structural configuration. Only those well designed and built structures could cross the roller coaster without falling and, therefore, the invitation: Are you ready for roller coasters?

By Cesar Arredondo (UNAM - Mexico D.F.)









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2012 Winner:

Guillaume Roux-Fouillet

The 2012 calendar “Quelques règles pour construire de maisons plus solides” was developed by the Swiss Agency for Development and Cooperation in collaboration with the Haitian ministry of construction and public works (MTPTC). It aims to improve seismic resilience of small individual buildings by spreading information on good construction techniques and better building materials in a country where auto construction is still very prevalent. Fifteen themes have been judged essential to improve construction quality. They are presented on separate pages displaying an illustration, some technical information and a few words so as to deliver a clear and relevant message.

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See all 2012 entries

2011 Winner:

Martin Koller and Esteban Rosales of Résonance Ingénieurs-Conseils SA, Switzerland

The team developed three brochures to raise the awareness of engineers, architects, and building owners of the moderate seismic risk in Switzerland. They submitted the three drawings that were used on the first pages of each brochure. The first leaflet explained the key points of seismic design of new buildings and emphasized the importance of an early collaboration between the architect and the structural engineer. The second leaflet was about evaluating and upgrading existing buildings, and the third concerned the liability exposure of the three target audiences.

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2010 Winner:

Earthquake Engineering Research Group (EERG) at the California Institute of Technology, led by
Swaminathan Krishnan, assistant professor of civil engineering and geophysics

The first-place project, entitled “Simulations of Earthquakes and Structural Response,” is a visualization portal depicting various simulations conducted by the EERG. Noteworthy movies include: (a) the seismic wave propagation into the Los Angeles basin from the computational recreation of the 1857 magnitude 7.9 earthquake on the San Andreas fault; (b) response of tall steel moment-frame buildings to the ground shaking at various locations in the basin from this event, as well as from the Great Southern California ShakeOut earthquake (collaborators included EERI member Rob Graves of URS Corporation and Ken Hudnut of the USGS); and (c) the computational recreation of the response of a six-story full-scale structure subjected to the Tohoku University accelerogram recorded during the Miyagi-Ken-Oki earthquake of 1978. The pseudo-dynamic test was conducted at the Building Research Institute in Japan, under the auspices of the US-Japan Cooperative Research Program.

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Presentation at 2010 EERI Annual Meeting


2009 Winner:

Steve Tipping, Barry Ralphs and Mike Korolyk of Tipping Mar & Associates

Animation of a Retrofit Design for a Building – A 26-story steel frame structure built in the early 1900’s. It has a number of architectural aspects that make it well-worth preserving as an historical landmark including a marble-colored terra-cotta façade and decorative sculptures reminiscent of an array of fountains along the perimeter. The animation highlights the existing structural system and the proposed construction sequence for a seismic retrofit scheme which consists of a single post-tensioned, reinforced concrete core. The post-tensioning offers a significant benefit as a partial substitute for mild reinforcement, delivering recentering behavior without sacrificing strength or significant ductility. We studied and tested these benefits using nonlinear time-history analysis.

The Tipping Mar team used a variety of software packages to create the final animation, including AutoCAD2008 (model building), 3DS Max 2008 (animation) and CSi Perform 3D (nonlinear analysis).

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2008 Winner:

the Carnegie Mellon University team:
Ricardo Taborda, Leonardo Ramirez-Guzman and Professor Jacobo Bielak

The first-place project consists of graphic animations of wave propagation phenomena generated by a scenario Mw 7.8 earthquake on the San Andreas fault in the Greater Los Angeles Basin. The results of the simulation, clearly visible in the animation, suggest a direct correlation between the amplification levels and the local soil and basin profiles. Three-dimensional simulations of earthquakes have led to a deeper understanding of wave propagation and site effects in urban regions. This simulation was performed at the Pittsburgh Supercomputing Center using Hercules software developed by the Quake Group at Carnegie Mellon University. The team verified their results by comparing synthetic seismograms computed by others for similar scenario earthquakes. Thanks to a recently awarded grant from NSF, the team will include nonlinear soil characteristics and structures (site-city effects) in future simulations.

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