Novel bridge system for durable, low-cost and rapid construction
Speaker: Dr. Nangallage Dilum Fernando
Senior Lecture in Structural Engineering
Deputy Director of Centre for Future Timber Structures
Synopsis: This seminar will discuss an investigation into the design and benefits of a novel double-skin tubular arch (DSTA) bridge system being developed at the University of Queensland (UQ) as a collaborative effort of several organizations. This new bridge system builds on the existing research on hybrid double-skin tubular members (DSTMs) which consist of an outer FRP tube, an inner steel tube and a layer of concrete sandwiched between them. DSTA bridges are light-weight, durable, low-cost and rapid to construct, thus providing a highly attractive alternative to traditional bridge designs. This seminar will discuss the results of investigations to highlight the economic, environmental and societal benefits of the proposed DSTA bridge system compared to a typical precast concrete bridge solution. In addition, the results of an ongoing research program, involving both experimental and theoretical inebriations into the behaviour of DSTA bridges, will be presented.