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Abstract: The 207 metre high R and I Bank Tower, on completion in 1988, will be the tallest building in Perth and the third tallest in Australia. The unusual triangular plan shape, with the centre of rigidity eccentric from the centre of mass, necessitated aeroelastic model testing to derive the correct wind pressure coefficients and to assess the vibration characteristics of the building, particularly the torsional modes. The slip formed concrete shear walls on the two shorter sides act with the beam/column frame on the hypotenuse to resist torsion. The floors are of conventional insitu reinforced concrete beam and slab construction. The building is founded on forty three 1.5 metre diameter piles belled out at the base to found in siltstone approximately 30 metres below basement level. They were constructed with temporary steel liners and were dewatered to allow physical examination of the bedrock. It was the first time such a technique has been used for a building in Perth. The basement walls are insitu concrete diaphragm walls constructed from the original basement level. These were retained by temporary prestressed ground anchors installed as excavation proceeded.

To cite this article: Roberts, A and Ryan, DC. The R and I Bank Tower, Perth [online]. In: National Structural Engineering Conference (1st : 1987 : Melbourne, Vic.). First National Structural Engineering Conference 1987: Preprints of Papers. Barton, ACT: Institution of Engineers, Australia, 1987: 679-684. National conference publication (Institution of Engineers, Australia) ; no. 87/10. Availability: <http://search.informit.com.au/documentSummary;dn=648389541056009;res=IELENG> ISBN: 0858253518. [cited 30 Jun 16].

Personal Author: Roberts, A; Ryan, DC; Source: In: National Structural Engineering Conference (1st : 1987 : Melbourne, Vic.). First National Structural Engineering Conference 1987: Preprints of Papers. Barton, ACT: Institution of Engineers, Australia, 1987: 679-684. Document Type: Conference Paper, Research ISBN: 0858253518 Subject: Structural design; Aeroelasticity; Tall buildings; Tall buildings--Design and construction; Piling (Civil engineering)--Testing; Series: National conference publication (Institution of Engineers, Australia) ; no. 87/10 Affiliation: (1) Associate Director, Ove Arup and Partners, Perth
(2) Director, Ove Arup and Partners, Perth

Database: Engineering Collection