ICBMC 2021 Keynote Speakers
Prof. Tan Kiang Hwee
National University of Singapore, Singapore
Professor TAN KIANG HWEE is a faculty member of the Department of Civil and Environmental Engineering at the National University of Singapore (NUS) since July 1981. He obtained his doctorate degree from the University of Tokyo, Japan in 1985. He specialises in the area of structural concrete and composites and has carried out extensive research on external prestressing, fibre-reinforced polymer (FRP) reinforcement, fibre-reinforced concrete, and sustainable concrete and construction. Professor Tan is a Fellow of the Institution of Engineers, Singapore (IES), Japan Concrete Institute (JCI) and Japan Society of Civil Engineers (JSCE). He is a member of editorial boards for more than ten international journals, including ASCE Journal of Materials in Civil Engineering, ASCE Journal of Composites for Construction, Cement and Concrete Composites, JCI Journal of Advanced Concrete Technology, and others. He is a registered professional engineer and has also been a consultant in structural engineering to several agencies in Singapore.
Abstract: Fibre reinforced concrete (FRC) is a composite material characterized by an enhanced post-cracking residual tensile strength due to the bridging of the crack faces by the fibres. It is a cost-effective material in construction due to the improvement in work productivity and product durability. In this lecture, applications of FRC in tunnel segmental linings, slabs on piles and canal base slab in Singapore are highlighted. This is followed by recent advanced research works carried out on FRC at the National University of Singapore, in particular, on the use of macro synthetic fibres in FRC to resist bending and shear. The development work on the establishment of a standard on the design of FRC structures in Singapore is further described.
Prof. C. W. Lim
City University of Hong Kong, Hong Kong
Prof IR Lim is currently a registered professional engineer (RPE). He received a first degree from Universiti Teknologi Malaysia, a Master's Degree and PhD from National University of Singapore and Nanyang Technological University, respectively. Prior to joining CityU, he was a post-doctoral research fellow at Department of Civil Engineering, The University of Queensland and Department of Mechanical Engineering, The University of Hong Kong. Prof. Lim is also a visiting professor at various universities including the University of Western Sydney, Dalian University of Technology, etc. He has expertise in vibration of plate and shell structures, dynamics of smart piezoelectric structures, nanomechanics and symplectic elasticity. He is the Editor for Journal of Mechanics of Materials and Structures (JoMMS), Associate Editor (Asia-Pacific Region) for Journal of Vibration Engineering & Technologies (JVET), Associate Editor for International Journal of Bifurcation and Chaos (IJBC), International Subject Editor for Applied Mathematical Modelling (AMM), and also on the editorial board of some other international journals. He has published among one of the well-selling titles in Engineering Mechanics entitled "Symplectic Elasticity", co-authored with W.A. Yao and W.X. Zhong, as recorded in April 2010 by the publisher, World Scientific. He has published more than 300 international journal papers, accumulated more than 3000 independent citations, and one of the papers was granted the IJSS 2004-2008 most cited article award. He was also awarded Top Referees in 2009, Proceedings A, The Royal Society.
Abstract: Metamaterials have attracted considerable attention during these two decades. Different from traditional structures, artificially designed meta-structures exhibit unique characteristics such as waveguide and wave attenuation, etc. Elastic analogies of topological concepts which include the quantum spin Hall effect, the quantum valley Hall effects and so on provide new approaches in controlling wave propagation in metamaterials. Based on the concepts of topologically protected interface states, this work presents periodically constructed phononic crystals plate to control the elastic wave propagation. Starting with the numerical dispersion relation analysis of unit cell, a topologically induced Dirac cone is observed. Then, by employing and actively tuning a structural parameter, a bandgap occurs with changes in topological states. Besides, the topological invariants are analyzed to characterize the topological properties of the system. By constructing a substructure consisting of two groups of unit cells in the corresponding states, the topologically protected interface mode (TPIM) is observed. Further, utilizing the TPIM, waveguiding paths are designed to control the elastic wave propagation. It is noticeable that high quality localization of energy is observed in the path and wave energy is nearly negligible for substructures not in the path. This novel structure exhibits bandgaps and the waveguide frequency is in the low frequency spectrum. Thus, it indicates promising applications for seismic wave isolation or structural health monitoring.
Prof. Kyoung Sun Moon
Yale University, USA
Kyoung Sun Moon is Associate Professor at Yale University School of Architecture. He received a B.S. from Seoul National University and an M.Arch. and an M.S.C.E. from the University of Illinois at Urbana-Champaign, and a Ph.D. from Massachusetts Institute of Technology. Prior to joining the Yale faculty, Dr. Moon taught at the University of Illinois at Urbana-Champaign and worked at Skidmore, Owings, and Merrill in Chicago and the Republic of Korea Navy. Educated as both an architect and engineer, Dr. Moon’s primary research area is the integration between the art and science/technology of architecture, with a focus on tall and other structurally challenging buildings. His articles on this area have appeared in many scholarly journals including The Structural Design of Tall and Special Buildings, Engineering Structures, Journal of Architectural Engineering, Architectural Science Review, Journal of Urban Technology, and International Journal of Sustainable Building Technology and Urban Development to name a few. He is also the author of the book “Cantilever Architecture.” Dr. Moon is a licensed architect in the U.S., and a member of the American Institute of Architects, American Society of Civil Engineers Committee on Tall Buildings, and Council on Tall Buildings and Urban Habitat Expert Peer Review Committee. He is an editor in chief of the International Journal of High-Rise Buildings and an editorial board member of other research journals.
Abstract: While tall buildings are an essential building type to deal with the global phenomenon of rapid population increase and urbanization, as buildings become very tall, theyalso produce many critical design challenges related to social interactions, emergency egress, structural systems, etc. As a viable solution for these issues, this presentation discusses potential of conjoined towers in producing more livable and sustainablemegatall building complexes with a focus on their capability in efficiently providing exceedingly tall building structures. While many different structural configurations are possible for conjoined towers, the conceptof superframed conjoined towers is highlighted. In the superframed conjoined towers, multiple braced tube towers are connected also with horizontal braced tube link structures. As the structural design of tall buildings is generally governed by lateral stiffness, an emphasis of the presentation is placed on the lateral performance of superframed conjoined towers with variously configured link structures.
ICBMC 2021 Invited Speaker
Assoc. Prof Galina Gorbacheva
Bauman Moscow State Technical University, Russia
Dr. Galina Gorbacheva is Associate Professor of Department of Wood Science and Technology, Mytishchi Branch, Bauman Moscow State Technical University. She received her PhD thesis Wood physics from the Moscow State Forest University (MSFU) in 2004. Her research work is devoted to the characterization of structure and properties of wood as a natural functional material for the creation of new nano-, bio - and composite materials. Author or co-author of more than 120 scientific publications, over 50 conference presentations in the areas of wood science, wood physics, memory effect of wood. Dr. Gorbacheva is Fellow of International Academy of Wood Science (IAWS), Scientific Secretary of Regional Coordinating Council on Wood Science (RCCWS, functioning under IAWS, includes 15 countries), Leading researcher in projects funded by the Ministry of Science and High Education of the Russian Federation, Member of Technical Committee 144 «Building materials and constructions» at Federal Agency on Technical Regulating and Metrology of Russian Federation, expert of The Grabar Art Conservation Centre. She has been a consultant for the Federal Customs Service of Russia, the Federal and regional bodies of state of the Russian Federation, the objects of cultural and historical heritage.
Abstract: The 21st century is called by the «era of smart (intelligent) materials». Smart materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli, such as stress, temperature, moisture, pH, electric or magnetic fields, light, or chemical compounds. Composite structure of wood, hierarchy of levels of structural organization; variability of characteristics in volume; the presence of soft, flexible components in the structure; self-assembly, self-organization, self-multiplication allow wood as a traditional construction material, renewable resource to demonstrate the properties of smart material. The behavior of wood as a structured material system that combines sensor, actuator and controller allows to implement new concepts in materials science and to develop different types of wood smart materials in relation to input and output stimuli. Features and characteristics of wood as a natural smart material allow to use it to create property-changing and energy-changing wooden smart materials, intelligent systems and environments for smart buildings. Shape memory wooden materials, programmable wood, actuators, responsive elements, self-forming, shape-selfing building components, transparent, cooling, touch-sensitive wood, thermochromic, photochromic, energy-storage, multifunctional wood smart materials with magnetic, superhydrophobic and anti-ultraviolet open the new opportunities for smart and efficient buildings.