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Grand Challenge 1 : Quantification of Demand

Grand Challenge 1 : Quantification of Demand. An unprecedented opportunity provided by the intersection of

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Grand Challenge 1 : Quantification of Demand

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  1. Grand Challenge 1 : Quantification of Demand An unprecedented opportunity provided by the intersection of two rich sources of data (observed damage and measured ground motion) with the promise of petascale computing platforms. The goal is to model the crustal rocks along with the covering soil and the built environment (bridges, dams, buildings.) Progress in response to this challenge will impact all issues related to protection of society from earthquakes.

  2. Grand Challenge 2 : Structural Response The affected region contained a wide variety of buildings, bridges, and dams. It is very important to understand the observed behavior of the damaged and undamaged buildings, to document the observed events in detail and explain them, in the interest of the safety of construction in the future.

  3. Grand Challenge 3 : Cascading Processes after The Main Shock The fault rupture resulted in many large slides and dozens of land-slide dams. The geotechnical damage suggests very high accelerations at short periods, an inference that clashes with conventional experience and demands detailed study. There are also three cases of major dams with damage. Because ground motion records were obtained at the sites of the dams, in-depth studies would enrich our knowledge of dam safety in earthquakes.

  4. Grand Challenge 4 : Earthquake Sensing and Structural Response-Modification Technologies The existence of a wealth of strong-motion data combined with detailed knowledge of the effects of the strong motion provides a rare opportunity for testing and improving of our current monitoring and data-acquisition systems. The same information along with current advances in nano-technology and geomatics will provide a very effective test bed for our next—generation sensors mimicking animal behavior.

  5. Grand Challenge 5 : Regional Resilience for Megaquakes including Impact of Megaquakes on Megacities. A salient outcome of the Wenchuan megaquake is the manifest need for coordinated interdisciplinary planning to develop plans for earthquake resilience of regions and to project these findings to apply to megacities. The physical outcomes of the megaquake need to be evaluated along with social behavior and economic factors. Analysis of the data from the Wenchuan event will be of immense value in developing plans for regional resilience.

  6. Grand Challenge 6 : Risk-Assessment Technologies for Land Use Planning The combination of dense ground motion measurements with detailed information on spatial variation of the strong-motion demand as reflected in the response of dams, bridges, buildings, and landslides will transform our knowledge on land-use planning.

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