Earthquake Risk and Engineering towards a Resilient World

9 - 10 July 2015, Homerton College, Cambridge, UK

Overview

SECED 2015 was a two-day conference on Earthquake and Civil Engineering Dynamics that took place on 9-10th July 2015 at Homerton College, Cambridge.

This was the first major conference to be held in the UK on this topic since SECED hosted the 2002 European Conference on Earthquake Engineering in London.

The conference brought together experts from a broad range of disciplines, including structural engineering, nuclear engineering, seismology, geology, geotechnical engineering, urban development, social sciences, business and insurance; all focused on risk, mitigation and recovery.

Conference themes

  • Geotechnical earthquake engineering
  • Seismic design for nuclear facilities
  • Seismic hazard and engineering seismology
  • Masonry structures
  • Risk and catastrophe modelling
  • Vibrations, blast and civil engineering dynamics
  • Dams and hydropower
  • Seismic assessment and retrofit of engineered and non-engineered structures
  • Social impacts and community recovery

Keynote speakers

SECED 2015 featured the following keynote speakers (affiliations correct at the time of the conference):

  • Peter Ford and Tim Allmark, Office for Nuclear Regulation, UK
  • Don Anderson, CH2M HILL, Seattle, USA
  • Bernard Dost, Royal Netherlands Meteorological Institute, The Netherlands
  • Anne Kiremidjian, Stanford University, USA
  • Rob May, Golder Associates, Australia
  • Tiziana Rossetto, University College London, UK
  • Andrew Whittaker, University at Buffalo, USA
  • Mike Willford, Arup, The Netherlands

Hits: 2011

Review

Monopile foundations with grouted connections are used extensively for offshore Wind Turbine Generators. In recent years, the offshore wind industry discovered that the existing design methods for monopile to transition piece grouted connections may result in problems associated with grouted transition pieces. This has been evidenced by the settlement of the upper sections of tower structures onto the lower parts of the structures (i.e. the piles). In addition to grout damage, scour at the base of the turbine is another challenge. Excessive scour that occurs immediately adjacent to the monopiles can destabilise the turbine and affect its natural frequency. The problem of grout damage and scour can increase the likelihood of lost operation and structural failure and therefore timely detection of these problems is vital. This paper presents the derivation of a conditional monitoring strategy for detection of both issues. It has been shown that vibration monitoring of the structure alone cannot help in identifying possible scour and grout damage. It is illustrated that the forces/displacements across the new elastomeric bearings which are installed as a retrofit measure, in conjunction with long range stress/strain measurement can be used for grout damage detection as well as identification. Subsequently, vibration monitoring can be used to identify scour.

Tags: SECED 2015  
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