The Tilt-Up Concrete Association (TCA) formed of a seismic design task group in 2005. According to Jim Baty, Technical Director of the TCA, the task group was formed as a proactive measure to involve the experts in the Tilt-Up industry.<\/p>\n
Responding to concerns regarding the performance of Tilt-Up structures during earthquakes in high seismic regions, largely due to incomplete information on both design and performance characteristics, this group is charged with identifying the current state-of-the-art Tilt-Up design procedures and standards for seismic performance and developing modifications to the current building code provisions based on these current state-of- the-art procedures and standards. The task group has begun to develop models for current design practice as well as solutions for dynamic modeling through the National Earthquake Hazard Reduction Program (NEHRP) and proposed detailing through the American Concrete Institute (ACI).<\/p>\n
\u201cThe task group will concentrate on understanding the dynamic behavior unique to Tilt-Up buildings with flexible diaphragms and its impact on seismic loads applied to panels, details for connections, design of the panels, and adjustments to the current code,\u201d said Baty. \u201cAdditional studies will be undertaken on complex fa\u00e7ade perimeters and irregularly shaped buildings, recognizing the increasing number of Tilt-Up buildings with these trends.\u201d<\/p>\n
Members of the task group include:<\/strong><\/p>\n \u00b7 Jim Baty \u2013 Technical Director of the TCA.<\/p>\n \u00b7 James Lai \u2013 Retired Structural Engineer from California involved in\u00a0determining the difference between ACI and the Uniform Building Code\u00a0(UBC) for changes that are occurring.<\/p>\n \u00b7 John Lawson \u2013 Practicing Structural Engineer from Kramer and Lawson,\u00a0Inc. from Tustin, Calif. and a member of the ACI 551 committee.<\/p>\n \u00b7 Geoff Banks \u2013 Practicing structural engineer from Christchurch, New\u00a0Zealand.<\/p>\n \u00b7 Gerry Weiler \u2013 Consulting engineer from Vancouver, British Columbia, past\u00a0chair of ACI 551 and a TCA member.<\/p>\n \u00b7 James Dorr \u2013 Architect from Arcadia, Calif. involved in Tilt-Up since 1967\u00a0and a TCA member.<\/p>\n \u00b7 Joe Steinbicker \u2013 Consulting engineer from Ohio, past chair of ACI 551\u00a0committee and a member of the TCA Board of Directors.<\/p>\n \u00b7 Phil Kopf \u2013 Consulting engineer from Georgia and a member of both ACI\u00a0551 committee and the TCA Board of Directors.<\/p>\n \u00b7 David Kelly \u2013 Vice President of Engineering for Meadow Burke \u2013 a leading\u00a0manufacturer of lifting hardware and other Tilt-Up accessories. He is currently chairman of the TCA Technical Committee and a member of the\u00a0TCA Board of Directors.<\/p>\n \u00b7 Ed Alsamsam \u2013 Representative for the Portland Cement Association (PCA).<\/p>\n \u00b7 Lance Osborne \u2013 Representative from Meadow Burke.<\/p>\n \u00b7 Itzhak Tepper \u2013 Consulting engineer from Virginia<\/p>\n \u00b7 Dr. Koladi M. Kripinarian \u2013 Vice President of Concorde Consulting Group of\u00a0San Diego, California<\/p>\n \u00b7 Ed McGuire \u2013 Contractor from Texas and current chair of ACI 551 \u2013 Tilt-Up\u00a0Concrete.<\/p>\n \u00b7 Jim Ness \u2013 Consulting Engineer, Principal of Monroe & Newell Engineers,\u00a0Inc. of Denver, Colorado<\/p>\n \u00b7 Mark Ash \u2013 Engineer from material supplier Ramset New Zealand of\u00a0Auckland, New Zealand<\/p>\n \u00b7 Steve Ray \u2013 Consulting Engineer from LJB, Inc. of Dayton, Ohio<\/p>\n \u00b7 Trent Nagele \u2013 Consulting Engineer from VLMK Consulting Engineers of\u00a0Portland, Oregon<\/p>\n \u00b7 Dave Goff P.E., S.E. \u2013 Consulting Engineer from Kramer Gehlen & Associates\u00a0of Vancouver, Washington<\/p>\n Consultants and advisors to the task group include:<\/strong><\/p>\n \u00b7 S.K. Ghosh \u2013 former Director of Engineering Services, Codes and Standards for PCA and an adjunct professor of civil engineering at the University of Illinois-Chicago. He is recognized as an international expert on earthquake engineering.<\/p>\n \u00b7 Neil Hawkins \u2013 Professor Emeritus at the University of Illinois \u2013 Urbana. He is author of the book Reinforced Concrete Structures in Seismic Zones and a member of the 2008 Provisions Update Committee for the Building Seismic Safety Council (BSSC).<\/p>\n \u00b7 Bob Bachman \u2013 Chairman of ASCE 7 seismic task committee. He is also involved in the NEHRP performance task committee and the Structural Engineers Association of Southern California (SEAOSC) seismology committee.<\/p>\n \u00b7 Matt Senecal \u2013 Engineer with the ACI Engineering Department. \u00b7 Dan Falconer \u2013 Technical Director of ACI.<\/p>\n For more information about the committee, contact Jim Baty at 319-895-6911 or jbaty@tilt-up.org.<\/p>","protected":false},"excerpt":{"rendered":"