Bin Xu
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Academic Titles:Director and Founder, Key Laboratory for Intelligent Infrastructure and Monitoring of Fujian Province
Gender:Male
Date of Birth:1972-03-04
Alma Mater:Ibaraki University
Education Level:博士研究生
Degree:Doctoral Degree in Engineering
Date of Employment:2016-08-01
School/Department:College of Civil Engineering, Huaqiao University
Business Address:College of Civil Engineering, Huaqiao University, Jimei Avenue 668, Xiamen, China
E-Mail:
Status:在岗
Other Post:Director and Founder, International Research Center for Safety and Sustainability of Civil Engineering
Administrative Position:Director, Key Laboratory
Discipline:Civil Engineering
Academic Honor:
2008 教育部“新世纪优秀人才支持计划”入选者
2017 福建省“闽江学者奖励计划”特聘教授
Honors and Titles:
福建省引进高层次人才（海外B类）
Hits:
Journal:Engineering Structures
Abstract:The contact and non-contact splices of the longitudinal steel bar and dowel bar have been widely adopted as the interface connection between pier columns and drilled shafts in bridge engineering. With the popularization and application of bridge substructures composed of the rectangular column and circular drilled shaft, the suitability and accuracy of the design provision specified in the current codes, which is derived from the investigation of the uniform circular components, are becoming the research hotspots in engineering and academia. In order to further study the mechanical behavior of the pier column-drilled shafts interface with inconsistent geometrical shapes, the experimental and numerical analysis of the interfaces with the overlap spacing of 0, 4, 6 and 8 in. are carried out systematically. The experimental results indicate that with the increment of lap spacing, the load-bearing capacity of the components will be consistently reduced, and the material strength also plays an important role in the structural performance. Compared with the specimen with the contact splice, the non-contact lap splice between the longitudinal bar and dowel bar will lead to additional shearing cracks and splitting cracks, and the inclination angle of the shearing cracks gradually increases with the enlargement of lap spacing as well. The relationship of the lateral displacement at the top of the column and the vertical reaction agrees well with that of the numerical analysis. Moreover, the fracture distribution and the interface separation can be explicitly depicted by 3D/2D numerical models based on homogeneous concrete assumption, which fully validates the rationality of the experimental observations. In order to exclude the influence caused by the variation of the concrete strength in tested specimens, the material properties in 3D and 2D simulation are uniformly specified according to the measured material strength of Specimen 1 and the numerical findings show that the structural stiffness of Specimens 1-4 decrease with the increment of lap spacing. However, the ultimate bearing capacity of the component is not apparently affected while using non-contact splices, accompanied by satisfied ductility. The detailed failure pattern and the crack evolution between overlapped steel bars are explicitly revealed by the 2D multiscale models. The maximum angle of diagonal cracks can be detected at the end of the overlap area, which is about 45 degrees. The inclination of shearing cracks within the overlap area is slightly smaller and deteriorates with the enlargement of lap spacing. Meanwhile, the microcracks located in the non-overlap area are typically horizontal bending fractures. The research conclusion of this study based on large-scale experimental and numerical investigation is highly referential for the practical application of the interface connection of bridge column to drilled shaft with inconsistent geometry using non-contact splices.
Indexed by:Journal paper
Document Type:J
Volume:176
Page Number:28-40
Translation or Not:no
Date of Publication:2018-12-28
Included Journals:SCI
Impact Factor:5.582
First Author:陈洪兵
Co-author:Masud, Mahadi,Jamshaid, Sawab,Huang, Hsuan-Wen,许斌,Hsu, Thomas T. C.
Correspondence Author:莫怡隆
Dr. Bin Xu is currently the Minjiang Scholar Professor of Civil Engineering, a professorship appointed by Fujian Provincial Government, at Huaqiao University, Xiamen, China. He currently is the Director and Founder of the Key Laboratory for Intelligent Infrastructure and Monitoring (IIM) of Fujian Province, and the Director and Founder of the International Centre for Safety and Sustainability of Civil Engineering at Huaqiao University.
Before joining Huaqiao University, he was a Lotus Scholar Professor of Civil Engineering (a professorship appointed by Fujian Provincial Government) at Hunan University from 2005 to 2016 and was also the associate dean of the College of Civil Engineering at Hunan University from 2010 to 2016. He was also the Director of the Hunan Provincial Key Lab on Damage Prognosis for Engineering Structures from 2015 to 2016 at Hunan University. He taught and carried out research at the Lyles School of Civil Engineering at Purdue University as a Curtis Visiting Professor appointed by Purdue University in 2014-2015 academic year. He had been invited and financially support by European Commission to work at Sapienza University of Roma in 2010 and hired by University of Western Australia as a Gledden Visiting Senior Fellow from 2007 to 2008. Before starting working in China in 2005, he worked at University of Missouri-Rolla in US as a Post-Doc from 2003 to 2005 and at Ibaraki University in Japan as a Japan Society for the Promotion of Science (JSPS) postdoctoral fellow from 2001 to 2003.
He has been the supervisor of 7 Ph.D., 1 Post-Doc, 4 international visiting students and over 60 MS students. All of his PhD students are working at universities. Dr. Xu has committed to securing competitive external funds to support programs, research, and labs. He has been the PI and Co-PI of 14 competitive government funded research projects including a China- European Commission international collaborative research project, an international collaborative research project between National Natural Science Foundation of China (NSFC) and National Natural Science Foundation (NSF) of US, and a number of NSFC research projects. He is also the recipient of Grant-in-aid of 7 talent programs sponsored by China Ministry of Education (CMoE) and other government agencies.
He also serves on various academic societies as Editor-in-Chief, Executive Editor, Associate Editor, Guest Editor or editorial board member for international journals and professional committees as Standing Committee Member, Executive Member or Committee Members.
