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Earthquake Information

 

The Canterbury earthquakes severely tested interior linings and bracing systems, and GIB® systems performed extremely well. In doing so they protected homes and people from more serious harm.

With the recent seismic events in the Wellington and Upper South Island regions in mind below are links to specific information that will assist in the assessment and rebuild process. More information will be added as we continue to investigate and determine the best ways to deliver GIB® plasterboard systems that are the most efficient and effective for specific applications.

Testing at Canterbury University shows how flush finished non-structural plasterboard partitions in commercial buildings can suffer significant earthquake damage, even at low levels of inter-storey drift. To see these tests in action please click on either of these links below.

Seismic Testing: Plasterboard partition, monolithic finish and no relief

Seismic Testing: Plasterboard partition, perimeter relief and free joint

 

GIB® Plasterboard Lined Partitions in Commercial Construction

Earthquake Information

Technical Information

BRANZ Bulletin 548 – Repairing Plasterboard after an Earthquake 
This bulletin provides guidelines for repairing plasterboard-lined walls to reinstate strength and stiffness

BRANZ Bulletin 551 – Learning’s from the Canterbury Earthquakes 
This bulletin gives an overview of the learning’s that came from the examination of damaged buildings

Gypsum Plasterboard Lined Partitions in Commercial Construction Update

Bracing Light Timber Framed Buildings
A bulletin which discusses different options for bracing light timber framed buildings

Post Earthquake Performance of Sheet Bracing & Systems
A technical report from Dr Richard Hunt which using results from extensive testing determines the extent of loss of stiffness and strength to a sheet bracing element that has been subjected to an earthquake event

The Performance of Houses and Gypsum Plasterboard
This paper considers these two main events and looks back at the performance of houses and gypsum plasterboard linings.

Repairing Lath and Plaster Walls and Ceilings
An information bulletin that provides general guidelines for assessing and carrying out remedial work to lathe, plaster walls and ceilings

Assessing Water Damage

Tools

Guidelines to Repairing GIB® plasterboard linings
This guide aims to assist the earthquake damage assessment process with deciding the most appropriate corrective action.

Damage Assessment for Residential Structures
This information bulletin provides general guidance for carrying out remedial work to plasterboard wall and ceiling surfaces following damage sustained after a severe wind or earthquake event.

GIB® Wall and Ceiling Repair Tool
This tool shows users the type of damage that may have occurred then lists repair strategies that should be used.

GIB® Wall and Ceiling Repair.exe (Windows)
GIB® Wall and Ceiling Repair.app.zip (OSX)
GIB® Wall and Ceiling Repair.apk (Android)
GIB® Wall and Ceiling Repair  (iPad)

GIB® Bracing Calculator 
This calculator allows the user to enter information for a residential building whilst on-site to determine whether the structure has sufficient bracing performance under NZS3604:2011 requirements

GIB® Bracing Software

General Information

Brace Right for the Rebuild
Provides initial information regarding bracing requirements for New Zealand homes

September 2010 Christchurch Earthquake article
Article that detailed some of the damage that buildings incurred and the performance of plasterboard bracing systems relating to the September 2010 event

February 2011 Christchurch Earthquake article
Article that detailed some of the damage that buildings incurred and the performance of plasterboard bracing systems relating to the February 2011 event

Re-Building Newsletter Issue 1

Re-Building Newsletter Issue 3

Earthquake Repairs Do's & Dont's