Preface

The Asia-Pacific Young Researchers and Graduates Symposium(YRGS)is primarily a platform for early-stage structural engineering professors,research scientists,professional engineers,postdoctoral fellows and postgraduate students to present their latest findings within the context of wide structural engineering discipline.The symposium features oral presentations predominantly from early-career structural engineering people but also includes talks from leading figures in the field.It provides an opportunity for learning about future career paths and networking with fellow researchers.The previous YRGSs has been held in Kunsan,Korea since 2009,then in Hangzhou(China),Taipei(China),Hong Kong(China),Jaipur(India),Bangkok(Thailand),Kuala Lumpur(Malaysia),Tokyo(Japan)from 2010 to 2017.Up to now,it has been successfully organized for 8 times.With 10 years'development,the YRGS has become attractive to many elites and young scholars all over the world with its distinct characteristics and features.

The 9th Asia-Pacific Young Researchers and Graduates Symposium-Performance Evolution and Control for Engineering Structures(YRGS 2019)will be held in Shanghai on 19-20 December 2019.It is sponsored by College of Civil Engineering,Tongji University,Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of Education of China and Asia Concrete Federation(ACF),to promote close international communication and cooperation,and to figure out the future development of structural engineering.The objectives of the upcoming symposium(YRGS 2019)are again to provide a forum to deal with the state of the art as well as emerging concept and technology,e.g.,multi-scale and multi-field methodologies,supercomputing,big-data and AI,etc.,related to research and practice,particularly in the theme of performance evolution and control for engineering structures,which has been receiving increasing attention due to its important role in sustainability-oriented life-cycle performance civil engineering and resilience of city and countryside.

Over 80 abstracts from 9 countries and regions were submitted to the symposium and accepted for publication in the abstract proceedings of YRGS 2019.The authors are from China(including Hong Kong and Taiwan),Denmark,India,Italy,Japan,South Korea,and USA.On behalf of the YRGS 2019 organizing committee and Tongji University,the chairs of the Symposium would like to cordially welcome all the authors and participants.We also take this opportunity to express our sincere thanks to the distinguished keynote lecturers—and to all the members of the Advisory Committee,International Scientific Committee and International Steering Committee.

We believe with your contribution and participation,the YRGS 2019 will be a successful event.We earnestly hope that all the participants will enjoy their stay and have a great time in Shanghai.

CHEN Jianbing YU Qian-Qian PENG Yongbo

Chairs,YRGS 2019 Department of Structural Engineering,Tongji University,Shanghai,China