# Seismic

## Functions for calculating the New Zealand seismic ‘Parts’ coefficient (Part 6)

Following on from the previous posts in this series where we calculated the seismic coefficients from NZS1170.5 and generated ADRS curves. This post covers generating the parts and components coefficient in accordance with Chapter 8 of NZS1170.5. Some time ago…

## Update to ADRS curve generation functions … now works in Excel 2019 plus random side-tracking… (Part 5)

As pointed out here in a recent comment by user Jason on the last post in this series, the VBA code for generating ADRS curves did not work in Excel 2019 as it turns out Excel 2019 does not include…

## ADRS curve generation functions for the New Zealand seismic code (Part 4)

Following on from the previous blog posts in this series that provided functions for calculating the NZS1170.5 seismic coefficient. I’ve added some further functions to the GitHub repository that utilise the previous functions to generate an ADRS curve in accordance…

## Functions for calculating the New Zealand seismic coefficient Cd(T) and associated parameters (Part 3)

In this final instalment let’s use the functions. They should hopefully be self-explanatory with the VBA comments, but there are a couple of subtleties to be aware of.

## Functions for calculating the New Zealand seismic coefficient Cd(T) and associated parameters (Part 2)

The functions discussed in Part 1 are outlined below. Click here to go to the GitHub repository with the full code and some extras. Or simply cut and paste from this page.

## Functions for calculating the New Zealand seismic coefficient Cd(T) and associated parameters (Part 1)

As exciting as it is calculating seismic coefficients (it’s not), you get sick of doing it by hand and implementing it time after time in various spreadsheets. Theres nothing worse than seeing someone calculate their seismic coefficient wrong on page…