Size Effect in Concrete Materials and Structures

Xiuli Du, male, Ph.D, Professor and born in 1962. He is a doctoral tutor and obtained doctor’s degree for Disaster Prevention and Reduction Engineering and Protective Engineering in Institute of Engineering Mechanics, China Earthquake Administration in 1990. He is a "Cheung Kong Scholar" awarded by the Administration of Education of China, also been supported by the National Natural Science Funds for Distinguished Young Scholar, been awarded the honor of " Outstanding Scientist in China", is one of the talents introduced by “ The New Century National Hundred, Thousand and Ten Thousand Talent Project” in China.He is now vice-president of Beijing University of Technology, Advisory Consultant of Science Departments and head of the Evaluating Committee for Civil engineering and Transportation Engineering of the National Natural Science Foundation of China, Member of the Civil Engineering Group of the Academic Degrees Committee of the State Council. He is the President of InternationalSociety of Lifeline and Infrastructure Earthquake Engineering, committee member of The International Association of Protective Structures, Seismology Society of China, China Civil Engineering Society, The Architectural Society of China, The Chinese Society for Rock Mechanics and Engineering.He has been dedicated to teaching and scientific research of Structure dynamics, Soil dynamics and Geotechnical Earthquake engineering in Harbin Institute of Technology, China, China Institute of Water Resources and Hydropower Research and Beijing University of Technology in China. He has been in charge of more than 30 major national and provincial-level projects and more than 10 projects in community service.He has published more than 400 papers in English and Chinese, and published 3 monograph, in Chinese. He has been awarded 5 2nd Class National Science and Technology Progress Awards, 4 1st Class provincial-level Science and Technology Progress Awards and 3 2nd Class provincial-level Science and Technology Progress Awards. Liu Jin, male, Ph.D, Professor and born in 1985. He is a doctoral tutor, and received his Ph.D. degree in civil engineering in 2014 from Beijing University of Technology (BJUT), China. He did his post-doctoral research in Tsinghua University during 2014-2016. He joined the college of civil and architectural engineering of BJUT in April, 2016, and he became professor in 2016. He is been supported by the National Outstanding Youth Fund of China since 2018.Prof. Liu Jin is the President of the Youth Committee of China Seismological Society for Infrastructure Earthquake Prevention and Disaster Reduction, and member of Sustainable Civil Engineering Research Professional Committee of China Urban Science Research Association. In addition, he is on the editorial board of several journals.Prof. Liu Jin has been dedicated to teaching and scientific research of size effect, design of concrete structures under multiple hazards. His research interest is focused on the mechanical performances of concrete materials and structures subjected to multiple hazards. He is in charge of 1 major Program of National Key Research and Development Project, and 2 program of National Natural Science Foundation of China. He has authored over 160 research articles and several reviews.

Introduction.- Concrete on the Meso-level.- Methodology: Meso-scale Simulation Approach.- Static Size Effect in Concrete Materials.- Dynamic Size Effect in Concrete Materials.- Size Effect in Shear and Flexure Failure of Concrete Beams.- Size Effect in Compressive Failure Behavior of Concrete Columns.- Seismic Performances and Size Effect in Columns.- Size Effect on Shear Failure of RC Beam-to-column Joints.