Office building in Sydney (Grosvenor Place building)

UNSW, Sydney – Australia

Office building in Sydney (Grosvenor Place building)

Building use

Office building

Country/Region

Australia

Overview

The Grosvenor Place building is an iconic building located on the northern part of George Street, Sydney which is on the border of the financial and rocks districts. The innovative use of structural steel in this building included quite a few firsts in Australia such as profiled steel sheeting, semi-rigid connections from beam to core, and high strength steel encased columns.

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

Construction date: 1988
Number of stories: 44
Gross floor area: 90,000m2
Adopted design code: AS1250/AS2327.1 (Standards Australia, 1981a and 1980)
Engineer(s): Ove Arup and Partners
Contractor(s): Concrete Constructions

Issue and/or innovation

Very large column free floor plates over 2000m2

Specific solution/technical details

The specific solution adopted consists of a total of 137 hot rolled C460 steel beams. The beams act compositely with a concrete slab (100-150 mm thick) made with C40/50 concrete. After fabrication, the steel hot-rolled profiles are cambered and finished by welding the shear studs and the endplates. Transported via train and truck to the installation site, the collaborative concrete slab was poured with C40/50 concrete before assembly in the final position. Once hardened the concrete, the beams were suspended with a crane and installed in their final position and simply supported between the piers, causing no disruption to the traffic underneath. The finishing slab made with C35/45 concrete was poured.