This series includes technical reports prepared by faculty, students and staff who are associated with the John A. Blume Earthquake Engineering Center at Stanford University. While the primary focus of Blume Center is earthquake engineering, many of the reports in this series encompass broader topics in structural engineering and materials, computational mechanics, geomechanics, structural health monitoring, and engineering life-cycle risk assessment. Each report includes acknowledgments of the specific sponsors for the report and underlying research. In addition to providing research support, the Blume Center provides administrative support for maintaining and disseminating the technical reports. For more information about the Blume Center and its activities, see https://blume.stanford.edu.
In 1986, the Concrete Reinforcing Steel Institute sponsored a project entitled, "Fundamental Period of Reinforced Concrete Moment Resisting Frame Structures” (Ref. 1). The investigators of that project were Professor Vitelmo Bertero of the University of California at Berkeley, Professor Haresh Shah and Dr. Fouad Bendimerad of Stanford University. In that study, fifteen reinforced concrete frame buildings were studed. Based on the data available on those buildings, it was shown that the formulas T = .035 (hn)3/4 and T = 0. lN represented lower limits of the period of reinforced concrete frame structures. Important earthquake events have occurred in California since that 1986 study. These events have provided additional data on building response to strong earthquake motions and have triggered several studies on earthquake building response. These data and studies are reviewed in this report to update and improve our understanding of the period of reinforced concrete moment resisting frame structures and to provide a better understanding of the dynamic behavior of reinforced concrete moment resisting frame structures.
Bendimerad, FM and Shah, HC and Hoskins, T. (1991). Extension of Study on Fundamental Period of Reinforced Concrete Moment-Resisting Frame Structures. John A Blume Earthquake Engineering Center Technical Report 96. Stanford Digital Repository. Available at: http://purl.stanford.edu/jp956sq0922
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