Wellington Railway Station – Seismic Strengthening

Client: KiwiRail Holdings Limited (KiwiRail)
Timeframe: Completion July 2015
Total value: $2.3m

Components: Refurbishment, repair and seismic strengthening of Grade 1 Heritage Building

Project description:

In 2013 KiwiRail undertook a structural review of its Wellington Railway Station building as a follow up to the 2013 Seddon earthquake.  Following that review a number of areas within the heritage grade 1 listed building were identified as in need of seismic strengthening.  These areas included the original ticket hall roof, egress stairs, atrium, internal unreinforced masonry walls and the clock.  The work included the removal of asbestos, strengthening of the steel roof trusses, the addition of extra trusses and supports, the removal of brick walls and their replacement with lightweight partitions.  This work was all done within a fully operating railway station, KiwiRail’s north Island track control centre, its commercial offices and tenant spaces

Our role

In the initial stages Xigo provided the management of the design team’s investigations into the seismic performance of the building and the risk analysis for the entire railway station.  From those investigations Xigo provided cost and input into the business case studies required by KiwiRail management for their Board approval.  Once approval was granted Xigo provided a full project management service including the engagement of the design team, cost planning, consent management, tender advice and control, tender negotiation, contract documentation and contract administration.  This project was very much hands on with our project management team required to attend site on a daily basis so as to maintain the continuity of operation.

Main challenges

Construction works and programme had to allow for the 24/7 operation of KiwiRail services and more importantly, the public safety when the Station was open.

Significant sections of steel needed to be installed within ceiling spaces and corridors.  A strict and tight methodology was required to keep the building safe from fire and damage during the extensive welding process