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Project Title Seismic Response and Design of Embedded Column Base Connections
Principal Investigator Amit Kanvinde and Greg Deierlein
Research Institution University of California at Davis and Stanford University
Project Period 2011 - 2014

Overview and Objectives: The research project is motivated by current wide-scale implementation of embedded column base connections with little guidance from design codes or standards. The proposed study will directly address the lack of test data and design guidelines for embedded base connections. The goal of the project is:

  1. To develop fundamental understanding of the force transfer mechanisms of commonly used embedded base connections under monotonic and cyclic loading.
  2. To demonstrate the strength, stiffness and damage characteristics of the embedded base connections for seismic design.

Work Description: The major scientific basis for the study will be five large scale tests on column base connections subjected to various combinations of axial and flexural loads. The tests will feature details that are representative of those used in design practice, but also offer insights into the governing force-transfer mechanisms that may be used for the development of innovative connections.

Deliverables: It is anticipated that the project will culminate with the publication of design and analysis guidelines for embedded steel column base connections. In addition, to journal publication of the test and analysis results and basic model development, the authors will publish the results of the research as a design guide, through AISC or the SteelTIPS report series, published by the Structural Steel Educational Council. Efforts will be made to promptly incorporate the design guidelines into the Seismic Provisions (AISC 341), Steel Construction Manual as well as the Specification (AISC 360). In addition, the authors will engage with appropriate committees at ACI to incorporate research findings into ACI guides and standards for design of concrete footings.

Benefit: The findings of the study will impact the safety and economy of embedded connections that are widespread and currently being designed by almost all major design firms. The work included in this project likely will result in improvements to many AISC publications.

Milestones:

    • Recently awarded Charles Pankow Grant

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