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1.1 Earthquake Risk Building Project

Brief and relevant summary of the case study - high light key words for example:

  • Development of rapid evaluation methods

  • Cost-benefit analysis of mitigation measures

  • Procedures to evaluate seismic risk to buildings

  • Simple building grading scheme for seismic risk

  • This project was carried out by a small group of structural engineers on behalf of the NZ Society for Earthquake Engineering for the NZ Building Industry Authority (BIA).

  • The BIA is responsible for administering the NZ building code, and responded to the advice of earthquake engineers that all existing buildings should be reviewed for performance in earthquake.

  • Key elements of the project are:

    • The development of a rapid evaluation method based on the identification of Critical Structural Weaknesses, such as soft storeys and plan eccentricities.

    • A cost-benefit analysis of mitigation measures, using probabilities of earthquake events, reductions in damage potential through mitigation and economic principles to convert expenditure over time to present values.

    • The development of detailed procedures to evaluate existing buildings

    • A simple Building Grading Scheme for seismic risk, intended to bring about mitigation through market forces.

  • Key elements of the project are:

    David Hopkins, Rob Jury and Bruce Shephard were three of the four members on this group, and presented a paper on the work to the 12th World Conference on Earthquake Engineering in Auckland in February 2000.


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