CCF SA Magazine Issue 1 2021 - Civil Connect

BOWHILL ENGINEERING FLINDERS LINK RAILWAY BRIDGE AND TEMPORARY STEELWORK

CLIENT NAME: GATEWAY SOUTH (FULTON HOGAN/ LAING O'ROURKE)

YEAR COMPLETED: 2018-2019

DESIGN INPUT AND COST SAVINGS TO CLIENT INCLUDED RECYCLED STEEL FOR TEMPORARY WORKS:

� 20 of 40 bridge girders – 1500 tonnes� Innovative temporary steelwork solution

� 700 tonnes of curved (in plan and elevation) segments up to 47m long and 85t each

� 12,000 shear studs

IMPLEMENTING LEARNINGS

Being the fourth steel bridge at this project site, the efficient design features that had been uncovered on previous scope packages were fed into the design development for this structure.

This assisted with speeding up the design process and allowing cost savings to be realised by the Gateway JV during the tender period.

Bowhill were active in sharing and assisting in this process. Full credit to the Gateway team for pursuing this continuous learning discipline.

In a general sense, we believe that these initiatives are helping to strengthen the case for building steel bridges in favour of other competing materials.

Sand Jacks: client specifications and engineers increasingly state that bridge girders are not to be installed directly onto the permanent bearings so as to avoid pot damage. This circumstance lends itself to an innovative solution.

20 OPEN TOP BOX GIRDERS FOR THE RAILWAY BRIDGE SIMPLY SUPPORTED GIRDER SEGMENTS

Bowhill have been providing their in-house IP for their solution which is deceptively simple – modular sand jacks. These jacks can be pre-set at the required height and can accommodate the unforeseen loads during the construction process.

Then once all work is completed, they can be safely lowered in a controlled manner without the use of any complicated or expensive mechanical, electrical, or hydraulic assistance.

It’s as simple as either blowing out the sand with compressed air. Or, some site teams have even used a vac-truck to remove the sand and avoid any need for cleanup. We now have a range of these jack kits in stock ready for incorporation into our next project.

“Bowhill Engineering listened to our specific requirements and then tailored their response to suit, it was brilliant!”

NIGEL HIRD, PROJECT ENGINEERING LEADER, LAING O’ROURKE – DARLINGTON

JOB VACANCIES

If you’re interested in joining a dynamic innovative and successful team, we have multiple vacancies on our books, shared accommodation available and a full schedule for 2021.

boweng.com.au/job/ multiple-vacancies/