The objective.

Constructed in the late 1980’s, 22 The Terrace is a ten storey building that now presented an earthquake risk due to a low NBS rating. The ultimate objective of this project was to complete a seismic retrofit of the building to bring in back to a 100% NBS rating.

Our solution.

Having being contacted early in the project by Catalyst to comment and consult on the design, we offered some design modifications and alternative options at a collaborative meeting involving both Catalyst and Beca.

After completing a cost and feasibility assessment it was decided some of the options we presented added substantial value in terms of reduced costs and quicker installation, and were adopted into a new design for the building.

This project shows the benefits of early subcontractor involvement in the design phase of a project.

The building itself consists of a basement, 10 floors and a roof services facility. It is surrounded by adjacent office blocks on 3 sides.

The strengthening is on every floor and mostly internal with a small amount of exterior work on the eastern wall. Positioning the steel components on the required floors was a challenge, and the steel was designed to accommodate the tight access.

The outcome.

We successfully completed this project in conjunction with our partners and achieved the objective of attaining a new NBS rating of 100%.