Deric Oehlers is Professor of Structural Engineering, from School of Civil, Environmental and Mining Engineering, The University of Adelaide, Australia. Deric Oehlers' research is mainly in the field of composite structures and in particular the assessment and rehabilitation of existing structures. Through his research he has developed techniques for: determining the strength of the shear connection in composite beams with solid and profiled slabs; assessing the remaining fatigue endurance and residual strength of composite steel and concrete bridges; the design of composite profiled slabs and profiled beams; strengthening and stiffening reinforced concrete structures by adhesively bonding steel or fibre reinforced polymer (FRP) plates to their surfaces for static and fatigue loads; bolting steel and FRP plates to reinforced concrete structures to increase both their strength and ductility; and for modeling and quantifying the rotational ductility of plated and un-plated reinforced concrete members. He has published 4 books, over 90 journal papers and over 70 conference papers that are frequently cited internationally. He has given 5 keynote conference addresses and acts as a reviewer for 21 journals as well as being on the editorial board of 5 international journals.
There were two presentations from Prof. Deric Oehlers, including The Need for More Advanced Techniques in Reinforced Concrete Design' and Our obsession with curvature in reinforced concrete'. A new structural mechanics moment-curvature approach combined with discrete rotation is described in the presentations. It is shown that this new approach can be used to develop structural mechanics models to replace the empirical models from the wholly moment-curvature approach such as empirical hinge lengths for rotation, empirical effective flexural rigidities for deflection and empirical equations for crack spacings and widths. It is suggested that these new structural mechanics models will allow a more rapid development of new products such as FRP confined concrete and new applications such as for extreme loads. It is suggested that it is time to overcome our obsession with curvature.
Some academic teachers and graduates have attended Prof. Oehlers' presentations and then there was a further discussion about research way, ideal exchanging and corporation in the future. The Dean of School of Civil Engineering Prof. FAN Feng had a meeting with Prof. Oehlers and expressed his welcome for Prof. Oehlers' visit.
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