Comprehensive Seismic Assessments
If you own an earthquake-prone building, you are required to undergo seismic strengthening work to increase the %NBA rating.
Our comprehensive seismic assessments are set by the New Zealand Society for Earthquake Engineering with a thorough process to evaluate your building.
We treat these as high priority. A thorough process is conducted to evaluate your building based on a comprehensive seismic assessment set by the New Zealand Society for Earthquake Engineering. These are driven by banks, purchasers and tenants (particularly government departments).
- An Initial Seismic Assessment (ISA) includes an IEP (Initial Evaluation Procedure).
- The IEP is a generic process governed by the date of construction of the building.
- The earlier the construction, the worse it gets, the %NBS is likely lessened.
- It is probable that the IEP for a building constructed prior to 1976 will be less then 33%NBS and a written report may not be worth completing unless required as proof to satisfy bankers/insurers etc.
- There are also issues depending on what the construction actually is and its condition.
- If the client wants to keep the building and prove its worth if constructed prior to 1976 or thereabouts, they will need to do a DSA (Detailed Seismic Assessment) and determine if strengthening is required.
- A DSA usually means we design the building again using known elements and determine those that need strengthening.
- To make it more complicated the government only require buildings to meet 33% of the current codes of practice of 33%NBS (New Building Standard) to be acceptable. Banks usually require 67%NBS.