Risk targeted design

The earthquake-resistant design of a structure is based on many assumptions. Current codes do not prescribe escalation of the reliability of design depending on the consequences of the collapse of a structure. The aim of the project is to develop a risk-targeted seismic design procedure which would involve the use of different types of analysis in order to satisfy a risk-based performance objective, e.g. target collapse probability, with a reasonable utilization rate and sufficient reliability. Differentiation of the reliability of design can be achieved by defining different design algorithms depending on the importance of a structure. In general, the proposed design is iterative, where the adjustment of a structure during iterations is the most challenging task. Rather than use automated design algorithms, simple guidelines for adjusting the structure will be proposed. These guidelines will provide simple rules aiming at increasing the strength and deformation capacity of the investigated structure.

Flowchart of one possible realization of the risk-targeted seismic design procedure.

3R method

  • Response analysis, Record selection, Risk-based decision makings
  • Realization of concept of Intensity-based assessment for risk-targeted decision making

CGM webapp

  • Online application for selection of Characteristic Ground Motions
  • Database contains > 18.000 ground motions


  • Online application for calculation of risk-targeted seismic intensities and behaviour factor