Tim Wilkinson

Presented to IEAust Sydney Division, Civil & Structural PanelSydney, Australia, July 2000

Centre forAdvancedStructuralEngineering

The University of Sydney

An Overview of Recent and Current Research in Steel Structures

University of Sydney• Structural behaviour and design of metal structures• Structural testing of metal structures and their components• Finite element modelling of structural systems and components• Structural stability studies• Fatigue and fracture studies• Materials investigation of steel, stainless steel and aluminium

• Greg Hancock, Kim Rasmussen, Nick Trahair, Peter Ansourian, Andrew Abel, Lip Teh, Tim Wilkinson

• Raef Sully, Cameron Chick, Cathy Rousch, Colin Rogers, Ben Young, Anthony Hasham, Bogdan Put, Dan Popovic

• Mike Bambach, Demao Yang, Kevin Ye, Elisha Harris

Tubular Members Steel Structures Standard AS 4100

BHP Design Capacity Tables Computer Software - LIMSTEEL

Tubular Connections CIDECT Guides

Stadium Australia Cold-Formed Steel Structures StandardAS/NZS 4600

Vacuum Test Rig Cold-Formed Design Software - ColdSteel/4600

Purlin Tables Modern Industrial Building with G450 Purlins

G550 Steel in Tension/Compression

End Pull-Out

Net Section Stub columnBearing with localised

tearing

Roof Truss in Steel Framed House

Steel Storage Racks 3-D Analysis of Racks

Non-inclusion of shear centre eccentricity does not detect local flexural

torsional buckling mode, which has a load factor about 25 % less.

Research in Stainless Steel Draft Stainless Steel Standard

Monash University

• Fatigue• Floor Vibration• Large Deformation Cyclic Loading

• Fire Resistance• Very High Strength Tubes• Double Skin Tubes

• PhD Students (Fidelis Mashiri, Masood Alikhail, Mohamed Elchalakani, Chen Lee, Teck Lee, Natalie Patterson, Hui Jiao)

• Staff (Xiao-Ling Zhao, Paul Grundy, Raphael Grzebieta, Bill Wong, Len Koss)

• Sponsors (ARC, BHP SPP, CIDECT, BHP Research -Melbourne Lab and Palmer Tubes Mills)

• Others (Greg Hancock, Russell Bridge, Nick Trahair, Don Sherman, Takeshi Mori, Lin-Hai Han)

CIDECT Guides Queensland University of Technology- Topics

• High strength Steel cladding systems under high wind forces - Local pull-through and pull-out failures, Static and fatigue performance

• Sandwich panel cladding systems - local buckling and flexural wrinkling • Advanced analysis of steel frames subject to local buckling effects • Full scale behaviour of low rise buildings under wind loads • Three-dimensional analysis and behaviour of steel portal frame buildings

including the effects of steel claddings• Cold-formed steel wall frames and trusses • Steel framed housing • Development of new cyclic test regime for roof claddings in cyclonic areas• Life cycle assessment of steel building systems

Mahen Mahendran & others

12 m span x 12 m length Unclad building

3 frames @ 6 m 4.2 m height

12 m x 12m Fully clad building

QUT: Full Scale Tests and Three-

dimensional Modelling of Steel

Portal frame Buildings

Local Failures in Crest-fixed High

Strength Steel Cladding Systems

Other QUT ProjectsBehaviour of Cold-formed Steel wall frames lined with

plasterboard

University of New South Wales• Composite Construction• Buckling of Side Plated Beams • Behaviour of Semi-Continuous Steel-Concrete Composite Beams • Concrete Filled Steel Columns• Composite Columns utilising High Strength Structural Steel

• Mark Bradford, Brian Uy, Deric Oehlers• Scott Smith, Hing Yip-Loh

Composite Book University of Western Sydney

• Composite Construction• 500 MPa reinforcement• Trussdeck, Bamtek etc• Software • Russell Bridge

• Mark Patrick• Paul Berry• Andrew Wheeler• Martin O’Shea• Martin Pircher

UWS - Tests Composite Construction Design Guides

Victoria University of Technology

•Fire Engineering

Staff include

•Ian Thomas & Ian Bennetts

Challenges

•Money

•Staff & research students

•Basic research

•Input required from industry

Summary

•Research is industry focused

•Research ⇒ Papers ⇒ Standards ⇒ Design Aids & Software

•Interaction and input required from practicing engineer

•Challenge and change the government focus

•Lift engineering profile