Strand Corrosion in Prestressed Concrete Structures

This is an open access book. 

This book focuses on the durability problems of existing prestressed concrete (PC) structures caused by strand corrosion, clarifies the mechanical behavior of corroded prestressing strands, corrosion-induced cracking, bond degradation, prestress loss and structural performance deterioration, and proposes the corresponding prediction models. Its aim is to provide the knowledge, tools, and methods to understand the deterioration phenomena of PC structures. We hope that this text may be useful for those who work in the field of civil engineering. It is suitable for teachers and students majoring in civil engineering in universities, and researchers in the field of civil engineering. It is also suitable for practitioners of design institutes, construction units, supervising units and traffic management departments.  

Introduction.- Effect of corrosion on mechanical behaviors of prestressing strands.- Corrosion-induced cracking of prestressed concrete.- Effect of corrosion-induced crack on the bond between strand and concrete.- Bond-slip model of corroded strand considering rotation effect.- Prestress loss and transfer length prediction in pretensioned concrete structures with corrosive cracking.- Secondary anchorage and prestress loss of fractured strand in PT beams.- Flexural behaviors of corroded posttensioned concrete beams.- Bearing capacity prediction of corroded PC beams incorporating grouting defects and bond degradation.

Prof. Lei Wang is the Dean of the School of Civil Engineering, Changsha University of Science and Technology, Changsha, China. He got the PH.D., M.S. and B.S. in 2008, 2005 and 2002, respectively. 

He is a Young Yangtze River Scholar of the Ministry of Education, Young and Middle-age Science and Technology Leader of the Ministry of Transport, and Science and Technology Leader of Hunan Province, etc. He is a member of ASCE and IABSE. He is the Executive director of TEFC, the committee member of Structural Vibration Control and Health Monitoring and China Journal of Highway and Transportation Society.