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New Book Presents Tilt-Up Design Procedure With Potential Economic Benefits

Español | Translation Sponsored by TCA

The Tilt-Up Concrete Association announces the availability of Limit Design of Tilt-Up: Practical Applications of Nonlinear Static Analysis to the In-Plane Seismic Design of Tilt-Up Panels by Timothy W. Mays, Ph.D., P.E.

The Limit Design procedure that is developed and formally presented in this design guide meets the strength design provisions of ACI 318-14. However, until the building community fully adopts nonlinear static analysis procedures, Limit Design of Tilt-Up is intended to meet the performance-based procedures allowance in Section 1.3 of ASCE/SEI 7-10 and the Alternate Means and Methods (AM&M) provisions in Section 104.11 of the 2015 International Building Code (IBC). Compliance with these sections allows the designer to use procedures that are not specifically outlined in the governing codes and standards. The economic benefits of Limit Design (i.e., the potential for overall steel reduction and less-stringent prescriptive seismic detailing) are coupled with increased structural reliability that is related to the seismic performance objectives established in the IBC. Put simply, when Limit Design is used for tilt-up panels, designers are in control of the design; they can place reinforcing steel where needed and fully document how the structure will move during the design earthquake.

Following a brief introductory chapter, Chapter 2 introduces the reader to work-energy concepts and nonlinear static procedures. Along with these concepts and procedures, Chapter 2 discusses a philosophical comparison of the nonlinear static method to the Equivalent Lateral Force procedure. Chapter 3 formally develops and presents Limit Design of tilt-up and concludes with simple steps that can aid the designer when applying the procedure. Chapter 4 presents four design examples of Limit Design of tilt-up.

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TILT-UP TODAY, a publication of the Tilt-Up Concrete Association, is THE source for Tilt-Up industry news, market intelligence, business strategies, technical solutions, product information, and other resources for professionals in the Tilt-Up industry. A subscription to TILT-UP TODAY is included in a TCA membership. Subscriptions for potential TCA members are also available. If you would like to receive a complimentary subscription to the publication, please contact the TCA.