In evaluating these three approaches, varied types of concrete and testing methods were used. Shear testing was conducted using a lightweight concrete mix, and flexural testing of prestressed SCC beams was conducted. Seismic testing of headed bars in RC beam-column connections was also conducted. The test results were compared with the ACI 318 provisions and with existing modeling equations proposed by several researchers. This book proposes new models which correlate better with the test results, and examines the effective solutions for diverse conditions offered by several variations and combinations of such methods. The study in this book will provide the basis for additional research since the guidelines and codes regarding the alleviation of reinforcing congestion are shown to be based upon previously limited data.
Dr Woosuk Kim is an Assistant Professor of Architectural Engineering at Kumoh National Institute of Technology. He received his PhD from the University of Oklahoma, Norman, and his BS from Kumoh National Institute of Technology. Dr Kim received the Larry Canton Scholarship from the University of Oklahoma in 2010.