Day 1 :
Professor and Director
Brian Uy is Professor of Structural Engineering and Director of the Centre for Infrastructure Engineering and Safety (CIES) in the School of Civil and Environmental Engineering at The University of New South Wales in 2013. He has co-authored over 600 publications including over 150 journal articles. He has delivered over 250 conference papers in 35 countries, including over 60 keynote/invited lectures in 15 countries and has been involved in research in steel and composite structures for over 20 years. Brian is Chairman of the Standards Australia Committee BD32 on Composite Structures which is currently preparing the Australian/New Zealand Standard AS/NZS2327 on composite structures for buildings. He has been the Chairman of the Australia Regional Group of the Institution of Structural Engineers since 2012 and the Chairman of the Australia Group of the International Association for Bridge and Structural Engineering (IABSE) since 2015. Brian is Chief Editor (Asia-Pacific) for Steel and Composite Structures and serves on the Editorial Board of Journal of Constructional Steel Research and Advanced Steel Construction. He also currently serves on the American Institute of Steel Construction (AISC) Task Committee 5 on Composite Construction and the IABSE Working Commission 2 on Steel, Timber and Composite Structures
This paper will look at trending technologies and techniques in the design and construction of steel and composite infrastructure. The paper will focus on the broad categories of bridge and building infrastructure and the past, present and future practices. In particular the issue of the reduction, reuse, recycling and rethinking (4 R’s) as it applies to the use of steel in steel and composite infrastructure will be addressed. Particular focus will be made in the paper in looking at connections in steel and composite infrastructure in addressing the 4 R’s. In addition the issue of advanced materials, particularly for steel and concrete for beams, columns, joints, slabs and systems will be a focal point for the paper. The paper will conclude with some salient examples of these advances as they have been addressed in American, Australian and European Codes of Practice.
Centre for Infrastructural Monitoring and Protection, Curtin University, Perth, Australia
Dr Jun Li obtained his Phd degree at Hong Kong Polytechnic University in 2012. He was awarded an ARC-DECRA fellowship in 2014 and an ARC Linkage Project in 2016. He has generated 72 technical publications, with 75% of his journal papers in top quartile journals. He was nominated as one of four Finalists for Western Australia Premier’s Science Awards Early Career Scientist of the Year 2016, and Curtin University Pro Vice-Chancellor Awards for Research Excellence-Early Career Researcher Award 2016. He also received an honorary position namely Hai-Tian (Sea-Sky) Scholar Award at Dalian University of Technology, China from 2016-2019.
Composite bridge represent one of typical types of bridges on Australia highways. This presentation talks about the development motivation, theoretical background, verification and application of a recently developed relative displacement sensor for civil structural health monitoring. The developed sensor is very sensitive to the relative movement between two points on the structure, and is also easy to be directly mounted on the structure. It does not require a stable reference point therefore it is easy to setup and is cost-effective to measure the relative displacement. It can be used for real-time and offline structural health monitoring. The recent studies on using relative displacement sensors for structural health monitoring of steel-concrete composite bridges are presented. A slab-on-girder composite bridge model is fabricated in the laboratory. Condition monitoring of shear connection conditions in composite bridges is performed under ambient vibrations and moving load excitations. The relative displacement sensor is also applied for the crack monitoring in the composite bridge. Experimental results demonstrate that the relative displacement sensor shows a superior performance than traditional vibration sensors, i.e. accelerometer and laser displacement sensor in monitoring the shear connection conditions. The application of this relative displacement sensor has been successfully extended to monitoring the joint condition of steel truss bridges. Experimental studies and damage detection results on a laboratory simplified steel truss bridge are presented to demonstrate the capacity and performance of this developed sensor in structural health monitoring of joint conditions of steel truss bridges.