Vertical Component of Ground Motion - Is It Important?
Site response analysis is commonly performed to account for local site effects on ground motion propagation during an earthquake. Most site response analyses focus on the horizontal ground motion, but in reality, the ground is simultaneously subjected to shaking in both the horizontal and vertical directions during an earthquake. In this presentation, delivered in May 2018, Dr Stavroula Kontoe (Imperial College London) provided an overview of fundamental aspects of vertical site response analysis. A practical methodology allowing the use of existing software was presented. Finally, the impact of the vertical component of ground motion was demonstrated in three-dimensional analyses for a KiK-net down-hole array in Japan.
Integrating Atomic Observations into Evolutionary Models
The full title of this evening meeting, held in April 2018, was Integrating Atomic Observations into Evolutionary Models: a Paradigm Change for (Multi-risk) Exposure and Vulnerability Modelling and Post-event Reconnaissance. This meeting was presented by Dr Massimiliano Pittore (GeoForschungsZentrum, Potsdam). The increasing quality and decreasing cost of mobile mapping technologies, combined with the flexibility of custom-made, web-based collaborative platforms, allow for a new paradigm in data collection and integration to be developed. Several activities carried out over recent years provide preliminary evidence that support such a paradigm. Operational applications in the field of risk assessment and post-earthquake reconnaissance will be shown and discussed.
Design of Integral Bridges to Earthquake Loads: Challenges and Opportunities
In the March 2018 evening meeting, Dr Stergios A Mitoulis (University of Surrey) presented research on the response of integral abutment bridges (IABs) under various loads including earthquake excitation. Dr Mitoulis' talk covered smart designs for IABs with recycled materials as a means to minimise the soil-structure interaction effects. Dr Mitoulis also presented recent findings on the multi-hazard risk assessment of IABs. Future research and design opportunities were discussed on the basis of the ongoing research.
Analysis and Validation of Advanced Gas-Cooled Reactor Core Seismic Response Using Non-Linear Time-Domain Methods
In this evening meeting held in February 2018, Heather Riley (Atkins) presented an overview of the computational methods developed for seismic analysis of nuclear reactor cores within the so-called GCORE methodology. She also described how the methods were validated by means of independent shaker table testing of scaled reactor core models.
From Hazard to Loss: Treatment of Uncertainties in the Earthquake Loss Estimation of Building Portfolios
In the January 2018 evening meeting, Dr Luis Sousa explored issues relating to the impact on building fragility of hazard-consistent record selection and hazard disaggregation, and uncertainty characterisation in loss metrics and fragility analysis. He also discussed shortcomings in the state-of-art and the implications of this for earthquake loss modelling.
Response of Earth Dams to Earthquake Events – Field Data and Numerical Modelling
In the November 2017 evening meeting, Dr Loizos Pelecanos presented the seismic response of the La Villita dam in Mexico. Analysis of actual field data along with relevant numerical analyses were presented and discussed to obtain an understanding of the behaviour of the dam. Several issues related to the general seismic performance of dams were also discussed.
Barriers to Earthquake Preparedness: A Risk Representation Approach
This evening meeting was held in November 2013.
The 2013 European Seismic Hazard Model: A New Standard and Its Perspectives
A recording of the March 2014 evening meeting.
The REDi™ Rating System: A Framework for Implementing Resilience-based Earthquake Design for the Next Generation
This a recording from the April 2014 evening meeting, where the speaker was Ibrahim Almufti (Arup). The slides from Almufti's presentation are also available on the SECED website.
A recording of the January 2014 evening meeting.
A History of British Seismology
This is a recording of the 14th Mallet-Milne lecture.
Recent and Future Developments in Earthquake Ground Motion Estimation