Program

Keynote Lectures

Woo-jong Kim
Woo-jong Kim (DM Engineering Co., Ltd, Korea)

Brief Biography

Dr. Kim, born in 1959, received his degree from Seoul National University in Seoul, Korea. He is interested in the structural behavior of long span bridges with stay cables. Currently he is working as a head designer at DM Engineering. He had been a member of IABSE Working Committee 5 on Design Method and Processes from 2009 to 2017. He has made outstanding designs for steel, concrete and hybrid bridges. He received several awards from KSSC, KSCE and Korean government.

Title:
Steel Bridge Design in Harmony with Concrete in Recent Korea

Abstract

Steel and concrete are typical materials for bridge construction. Both materials have their own characteristics such as strength, weight and material cost, installation cost and speed, and durability. Bridge design engineers always compare these two materials, and they spend a lot of time and research to optimize the use of both materials. In many cases, optimum results can be obtained when properly mixing steel and concrete.

In this presentation, we will look at several bridges recently designed and constructed in Korea using steel and concrete in harmony. It also explores how the steel and concrete are mixed in the bridges, and what are the advantages of using them.
Venkatesh Kodur
Venkatesh Kodur (Michigan State University, USA)

Brief Biography

Dr. Venkatesh Kodur is a University Distinguished Professor in the Department of Civil and Environmental Engineering at Michigan State University (MSU). He also serves as Director of the Centre on Structural Fire Engineering and Diagnostics at MSU. His research interests include: Evaluation of fire resistance of structural systems through large scale fire experiments and numerical modeling and Characterization of materials under high temperature. His research contributions has lead to the development of fundamental understanding on the fire behavior of material and structural systems and also resulted in numerous design approaches and innovative and cost-effective solutions for enhancing fire-resistance of structural systems. He has published over 400 peer-reviewed papers in journals and conferences, and has given numerous invited key-note presentations. He is one of the highly cited authors in Civil Engineering and as per Google Scholar, he has more than 9200 citations with an "h” index of 54. The methodologies, techniques and design guidelines, resulting from his research, have been incorporated in to various codes and standards, as well practical applications, in the US and around the world and are instrumental in minimizing the destructive impact of fire in the built infrastructure.

Prof. Kodur is a Fellow of the Canadian Academy of Engineering and a Foreign Fellow of Indian National Academy of Engineering. He is a professional engineer, Fellow of American Society of Civil Engineers, Fellow of Structural Engineering Institute, Society of Civil Engineers, Fellow of American Concrete Institute, Associate Editor of Journal of Structural Engineering, Past Chairman of ACI Fire Protection Committee, Chairman of ASCE-29 (Fire) Standards Committee and a member of UK-EPSRC College of Reviewers. He has won many awards including MSU University Distinguished Professor, American Institute of Steel Construction Faculty Fellowship Award, MSU Distinguished Faculty Award, NRCC (Government of Canada) Outstanding Achievement Award and NATO Award for collaborative research. Dr. Kodur was part of the FEMA/ASCE Building Performance Assessment Team that studied the collapse of WTC buildings as a result of September 11 incidents.

Title:
Strategies for Mitigating Fire Hazard in Steel Bridges

Abstract

Fire is one of the most severe environmental hazards to which the built infrastructure may be subjected during its lifetime. In recent years, due to rapid development of urban ground-transportation systems, as well as increasing transportation of hazardous materials, bridge fires have become a growing concern. Bridge fires can lead to significant economic and public losses; however, no specific fire resistance provisions are specified for bridges in AASHTO, NFPA, and other standards. This is contrary to structural members in buildings where adequate fire resistance provisions are to be provided to maintain structural stability and integrity in the event of a fire.

In the presentation, an approach, in the form of importance factor, will be proposed for classification of bridges based on fire risk. Detailed results from fire resistance experiments and numerical studies carried out to evaluate fire resistance of steel bridges will be presented. A series of design strategies to enhance fire safety of critical bridges will be presented. These strategies range from utilizing inherent fire resistance in structural members, through advanced analysis approaches, to providing some level of fire protection (insulation) to vulnerable components of steel bridges. Applicability of proposed strategies to practical situations will be demonstrated through case studies on different steel bridges that experienced fires in recent years.
Luigi Di Sarno (University of Sannio, Italy / University of Liverpool, UK)

Brief Biography

TBA

Title:
TBA

Abstract

TBA
Tsuyoshi Tanaka
Tsuyoshi Tanaka (Kobe University, Japan)

Brief Biography

Dr. Tanaka is a professor of Department of Architecture at Kobe University. His specialized field covers structural engineering and steel structure. His main research themes are the design of beam-to-column connections, column bases, welded connections and bolted connection in steel buildings. In addition, he is also conducting research on the construction of steel buildings.

Dr. Tanaka works at Managing Committee on Steel Structures (Secretary: 2017- ) and Sub-Committee of Steel Work (Chairman: 2011-2018) under Research Committee on Building Materials and Procedure of the Architectural Institute of Japan. He wrote and published Recommendation for Design of Connection in Steel Structures (2012), Japanese Architectural Standard Specification (JASS 6, 2018),Technical Recommendation for Steel Construction for Buildings (2018) and Standard for the Ultrasonic Inspection of Weld Defects in Steel Structures (2018).

Title:
Design and Welding of beam-to-column connections for supper high-strength steel materials

Abstract

Recently, high-strength steel products are increasingly been adopted in large-scale building construction projects. In addition, super high-strength steel products with a tensile strength rating of 780 N/mm2 (H-SA700) have been developed and their practical application has started in Japan. However, when examining the wider application of 780 N/mm2-grade steel products, weld performance and welding operation are obstacles to its wider application. Guaranteeing the preparation of over-matching weld joints for 780 N/mm2-grade steel products poses problems such as extreme difficulty in construction and leads directly to high construction costs. When steel products with a tensile strength of 780 N/mm2 are used for columns and those of 590 N/mm2 or lower are used for beams, the merit is great if it can be constructed by under-matching welding. This keynote paper introduces research examples of beam-to-column connections using super high-strength steels and discusses future issues.
Chia-Ming Uang
Chia-Ming Uang (University of California, USA)

Brief Biography

Chia-Ming Uang is a professor in the Department of Structural Engineering and Director of Powell Structures Laboratories at the University of California, San Diego (UCSD). He received a B.S. degree in civil engineering from National Taiwan University and a Ph.D. degree in structural engineering at the University of California, Berkeley

Dr. Uang’s main research interests are in seismic analysis and design of steel structures. He serves on the AISC Committee on Specifications and Seismic Committee. He received the T.R. Higgins Lectureship Award in 2015 and a Special Achievement Award in 2007 from AISC. Dr. Uang also received three research awards from ASCE: Raymond C. Reese Research Prize in 2001 as well as Moisseiff Awards in 2004 and 2014. His outstanding teaching is reflected by the several awards he has received, including the Distinguished Teaching Award from the UCSD Academic Senate (2004). Uang is a coauthor of two textbooks: Ductile Design of Steel Structures (McGraw-Hill 2011) and Fundamentals of Structural Analysis (McGraw-Hill 2015).

Title:
Historical Perspective on Seismic Steel Research and Design in the United States

Abstract

Seismic design of steel structures in the United States has made significant advances in the past half century. The development of seismic building codes and the associated research on steel structures can be broadly divided into three eras. Plastic design requirements were “borrowed” for seismic design during the first era that started in the early 1970s, although these requirements were not intended for seismic design. Cyclic research conducted since then together with capacity design from concrete research impacted seismic steel codes in the late 1980s. This second era was soon interrupted by the Northridge, California earthquake in 1994. Although this event revealed the vulnerability of welded joints in ductile moment frames, its impact on research, code development, and construction practice of all steel seismic force-resisting system in the United States is profound. Significant development during this third era will be highlighted.
Qilin Zhang
Qilin Zhang (Tongji University, China)

Brief Biography

Dr. Qilin ZHANG is professor and director of Spatial Structure Divisionof Civil Engineering College at Tongji University. He got his Bachelor degree in 1982 from the Southeast University of China. In 1985 and 1988 he got his Master degree and Ph.D degree from Tongji University of China, respectively. During 1994 to 1996 he worked in Steel Structural Institution at T.U. Braunschweig of Germany as research fellow from the AvH Foundation. In 1999 he worked in Department of Civil Engineering at T.U. Delft of the Netherland as senior research for one year. His research fields are steel structures, spatial structures, structural health monitoring, and information technology in civil engineering.

Dr. Qilin ZHANG is now the vice chair of the Spatial Structure Committee of China Civil Engineering Society, the deputy director of the Spatial Structure Branch of China Steel Structure Association, the member of expert committee of China Metal Structure Association. He is also the chair of technique committee of Shanghai Spatial Structure Research Center, and the chair of technique committee of Shanghai Structural Health Monitoring Research Center. In the past decades he was involved in the research and construction of many important engineering projects in China, including the Terminal of Pudong Airport which is the first beam string roof structure in China, the Bird Nest structure of 2008 Beijing Olympic Game, the Expo Axis of 2010 Shanghai Expo which is the largest cable membrane structure in China, and the Shanghai tower which is the highest building in China, etc. He is the chief editor of Chinese Technique Code for Aluminium Structure, and also involved in research and construction of some large scale aluminium structures in China.

Title:
Applications of Some New Technologies in Design, Construction and Maintainance of a Landscape Steel Footbridge

Abstract

Some new technologies and its applications in design, construction and maintanance of a steel footbridge are introduced. The footbridge is a cable supported bridge, consisting a supporting inclined arch, a supported curved deck, and some cables between them. The bridge is to be constructed on a cliff in a scenic region. The 3D laser scanning technique is adopted to locate the piers on cliff accurately, to ensure the same of the distance between two piers and the bridge span between two bearings. It is also used to establish the computation model for analyzing the stability of the rock slope. Some TMDs are set in the bridge to prevent the human induced vibration of the deck. The time histories of the deck vibrations before and after settings of TMDs are measured and compared, and the results show that the setting of TMDs is very important and effective. The SHM system is designed and established for the bridge to ensure the safety of its operations. It is very difficult for installation a bridge on cliff. A rotating construction technique is adopted for this bridge. The deck and the arch are firstly assembled on cliff and the cables are connected to them. Then the deck and the arch are rotated along the axis between the two bearings sequentially to its positions, through a pole-climbing robot system. This footbridge has successfully operated for more than two years.