Office building in Melbourne (Casselden Place building)

UNSW, Sydney – Australia

Office building in Melbourne (Casselden Place building)

Building use

Office building

Country/Region

Australia

Overview

The Casselden Place building is an iconic building in Australia for the use of concrete filled steel columns.

Basic information (construction date, number of stories, gross floor area, adopted design code, engineer(s), Contractor(s), etc.)

Construction date: 1992
Number of stories: 43
Gross floor area: 60,000m2
Adopted design code: AS1250/AS2327.1 (Standards Australia, 1981a and 1980)
Engineer(s): Connell Wagner
Contractor(s): Multiplex

Issue and/or innovation

Concrete filled steel tubes of 950 mm diameter filled with 70 MPa concrete strength.

Specific solution/technical details

The Casselden Place building is an iconic building in Australia for the use of concrete filled steel columns. These thin steel tubes allow for the concreting operations to be taken off the critical path and this had significant benefits for constructability. The steel tubes were erected in two storey lifts and could resist their own load up to six storeys. This meant that concreting of the steel tubes could be carried out at any stage up until the six storeys above were built and this had significant benefits to the builder and resulted in significant construction cost savings.