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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-5 of 16 Abstracts search results
Document:
SP-273
Date:
September 20, 2010
Author(s):
Editors: Karl-Heinz Reineck and Lawrence C. Novak / Sponsored by Joint ACI-ASCE Committee 445
Publication:
Symposium Papers
Volume:
273
Abstract:
This Special Publication contains 15 papers that were presented at technical sessions sponsored by Joint ACI-ASCE Committee 445, Shear and Torsion, at the 2010 ACI Spring Convention in Chicago, IL. Topics covered in the papers include an introduction to the method, design examples, common problems experienced in real design applications, additional guidance for use the strut-and-tie model (STM), and an assessment of existing requirements. Note: The individual papers are also available. Please click on the following link to view the papers available, or call 248.848.3800 to order. SP-273
DOI:
10.14359/51682323
SP273-03
Leonard P. De Rooy, Timothy C. DenHartigh, and Robert B. Anderson
This example illustrates strut-and-tie detailing techniques used to produce a practical and constructible design. Information presented herein is based on a 34 story post-tensioned concrete structure in Grand Rapids, Michigan that utilized deep concrete grade beams for its foundation system. The River House condominium project used over 1,900 cubic yards (1,400 cubic meters) of concrete and 380,000 lb (172,000 kg) of reinforcement for the grade beams alone. The grade beam illustrated in this example cantilevers over an existing caisson and a 60 in. (1,500 mm) brick sanitary sewer.
10.14359/51682291
SP273-02
Christopher S. Williams, Michael D. Brown, and Oguzhan Bayrak
The design of a statically indeterminate bent cap is presented. The cap resists six concentrated loads and is supported on four columns. Analysis, design, and detailing are all presented. Each of these steps is based on the ACI 318-08 Appendix A Strut-and-Tie Modeling (STM) provisions. Two load cases are considered and the controlling forces in the STMs are used to develop the final design. The objective of the example problem is to help familiarize engineers with the basic STM procedure through a fairly simple beam design.
10.14359/51682290
SP273-01
Robin G. Tuchscherer, Michael D. Brown, and Oguzhan Bayrak
The design of a hammerhead bent cap is presented. The design is performed according to the ACI 318 Appendix A Strut-and-Tie Modeling (STM) provisions. The objective of this paper is to present a design example for designers who do not have a large amount of experience with strut-and-tie modeling. Strut-and-tie modeling is relatively new to ACI 318 as provisions were first included in the 2002 edition. The procedure may be used for the design of both reinforced and prestressed concrete structures. The following example is intended to supplement the basic example problems available in textbooks. For additional background information, a review of textbook-level material [ACI SP 208 (2002), Schlaich et al. (1987)] is recommended.
10.14359/51682289
SP273-06
Adam S. Lubell and Katrin Habel
A transfer girder with 18’-8” (5690 mm) span is designed to provide column-free space in a hotel conference room at the second floor. The girder is subject to a tributary area load from the third floor and a terminated column which is offset from the mid-span location. All analysis and design is completed in accordance with Appendix A of ACI 318-08. Preliminary designs are examined for two alternate truss models that differ primarily in the slope of the inclined web members. For the preferred option, a detailed design is completed including direct consideration of fan-shaped struts at the column locations. The detailed design is also compared against the reinforcement requirements from the sectional design provisions of ACI 318-08.
10.14359/51682294
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