CICE 2018

Du 17/07/2018 au 19/07/2018

Université Paris-Est - 6-8 Avenue Blaise Pascal, 77420 Champs-sur-Marne

Plenary Keynote Speakers

Hybrid FRP-Concrete-Steel Tubular Members
Prof Tao Yu, University of Wollongong
Abstract: Hybrid FRP-concrete-steel (FCS) tubular members are an emerging type of structural members. These hybrid members involve the use of an external FRP tube as a confining device and a corrosion-resistant skin, a concrete infill, and encased steel reinforcement of various forms (e.g., steel bars, a steel section, or a steel tube). In such members, the FRP tube is generally designed to possess only a small axial stiffness so that its confinement effectiveness on the concrete is not compromised by buckling due to substantial axial compressive stresses, while the potential buckling of steel reinforcement is well restrained by the confined concrete, leading to excellent structural performance. This presentation will offer an overview of existing research on hybrid FCS tubular members before providing a summary of several novel forms of such members developed at the University of Wollongong.

Opportunities for Recycling and Reuse of FRP Composites for Construction in a Circular Economy
Lawrence C. Bank, City University of New York
Abstract: Sustainability and green engineering has evolved into a more comprehensive framework known as the Circular Economy. The importance to this shift in thinking to the FRP composites for construction industry will be discussed. The aerospace and automotive sectors of the composites industry are moving rapidly to embrace the circular economy concepts such as design for reuse, adaptability, modularity, recycling, reclamation, life cycle assessment, materials flow analysis and industrial ecology. Current major projects in Europe and the US will be reviewed. Examples of materials testing and concepts from an ongoing NSF funded US/Ireland/Northerner Ireland Tripartite research project on the reuse of glass/polymer wind turbine blades will be presented.

Structural Behavior of FRP-Reinforced Geopolymer Concrete Sandwich Wall Panels for Prefabricated Construction
Jian-Guo DAI, Professor, The Hong Kong Polytechnic University, Hong Kong, China
Abstract: Prefabricated concrete sandwich panels (PCSP), consisting of two concrete wythes and a thermal insulation layer in between, have great potential in use for prefabricated building construction. This presentation is concerned with the development of a new PCSP system, in which the two exterior wythes are made of FRP-reinforced geopolymer concrete while FRP tubular shear connectors are used to realize the composite action. The work reported here includes: (1) the structural performance of FRP tubular shear connectors; (2) the structural performance of FRP-reinforced geopolymer concrete slabs; (3) the structural performance of the formed sandwich wall panels subjected to out-of-plane and in-plane loading. Due to its green feature in addition to its structural efficiency, the developed PCSP system may have wide applications in prefabricated construction which is popular in Hong Kong and the rest of China.

Development of UK Design Guidance for FRP Bridges
Neil Farmer, BSc CEng FICE, Executive Director Tony Gee and Partners
Abstract: A team of design and construction practitioners, with assistance from academia, has been producing guidance for clients and their designers, and for suppliers who would like to procure FRP bridges, but need reassurance that those involved in the process can be guided by an engineering reference document that is accepted as state-of-the-art by experts in this specialist field. Publication of the guidance document is being progressed by the Construction Sector Group of the Trade Association Composites UK and is due for publication in 2018. The paper explains why the guidance is required and introduces each chapter by highlighting key recommendations in the guidance. To give context to the guidance, case studies will be given in the paper to illustrate the types of FRP bridges already designed and constructed in the UK.

Recent Developments on FRP Rebars as Internal Reinforcement in Concrete Structures and Field Applications
Brahim Benmokrane, Professor, University of Sherbrooke
Abstract: In the last decade, there has been a rapid increase in using noncorrosive fiber-reinforced polymers (FRP) reinforcing composite bars for concrete structures due to enhanced properties and cost-effectiveness. The FRP bars have been used extensively in different applications such as bridges, parking garages, water tanks, tunnels and marine structures in which the corrosion of steel reinforcement has typically led to significant deterioration and rehabilitation needs. Many significant developments from the manufacturer, various researchers and Design Codes along with numerous successful installations have led to a much higher comfort level and exponential use with designers and owners. This presentation is a summary and overview of different recent field applications of FRP bars in different types of civil engineering concrete infrastructures.

Composite material in architecture : applications, regulations and futur challenge
Samuel Durand, Senior Structural Engineer & Manager, MECA
Abstract: • Case studies of domes, roofs, facades and more
• Best-practice in material calculation
• Meeting fire protections standards & safety regulations
• Non-Crimp-Fabric technology for composites in construction
• Freedom of design, lightweight, adaptabilit