Title:
Verification of Three-Dimensional Grid Strut-and-Tie Model Approach in Structural Concrete
Author(s):
Young Mook Yun, Hyun Soo Chae, Byunghun Kim, and Julio A. Ramirez
Publication:
Structural Journal
Volume:
115
Issue:
1
Appears on pages(s):
27-40
Keywords:
grid strut-and-tie model; pier cap; pile cap; slab-column joint; torsional beam
DOI:
10.14359/51700946
Date:
1/1/2018
Abstract:
In this study, a proposed three-dimensional (3-D) grid strut-and-tie model approach is verified using the experimental capacity from 78 reinforced concrete pile caps, 19 slab-column joints, and 60 torsional beams obtained by others. The analysis results were compared with those obtained using the BS 8110, EC2, CRSI, fib, AASHTO-LRFD, and ACI 318 design provisions. In addition, the design of a pier cap subjected to multiple load combinations with longitudinal and lateral loads was conducted to illustrate the proposed approach. The design results from the pier cap example were also compared with those obtained using ACI 318-14. The analysis results agreed well with experimental results.
Related References:
American Association of State Highway and Transportation Officials, 2010, AASHTO LRFD Bridge Design Specifications, fifth edition, Washington, DC.
ACI Committee 318, 1999, “Building Code Requirements for Structural Concrete (ACI 318-99) and Commentary (ACI 318R-99),” American Concrete Institute, Farmington Hills, MI, 369 pp.
ACI Committee 318, 2014, “Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14),” American Concrete Institute, Farmington Hills, MI, 519 pp.
British Standards Institution, 1997, “Structural Use of Concrete: BS 8110,” Milton Keynes, UK.
Clarke, J. L., 1973, “Behavior and Design of Pile Caps with Four Piles,” Report No. 42.489, Cement and Concrete Association, London, UK.
CEB-FIP, 2010, “CEP-FIP Model Code,” Comité Euro-International du Béton, International Federation for Structural Concrete (fib), Lausanne, Switzerland.
Concrete Reinforcing Steel Institute, 2008, CRSI Handbook, Chicago, IL.
CEN, 2004, “Eurocode 2: Design of Concrete Structures,” European Committee for Standardization, Brussels, Belgium, 229 pp.
Foster, S. J., and Gilbert, R. I., 1998, “Experimental Studies on High-Strength Concrete Deep Beams,” ACI Structural Journal, V. 95, No. 4, July-Aug., pp. 382-390.
Ghannoum, G. M., 1998, “Effect of High-Strength Concrete on the Performance of Slab-Column Specimens,” MS thesis, Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, QC, Canada.
Hsu, T. T. C., 1968, “Torsion of Structural Concrete—Interaction Surface for Combined Torsion, Shear, and Bending in Beams Without Stirrups,” ACI Journal Proceedings, V. 65, No. 1, Jan., pp. 51-60.
Hsu, T. T. C., and Mo, Y. L., 1983, “Softening of Concrete in Torsional Members,” Research Report No. ST-TH-001-83, Department of Civil Engineering, University of Houston, Houston, TX.
Kim, B. H., and Yun, Y. M., 2011, “An Indeterminate Strut-Tie Model and Load Distribution Ratio for RC Deep Beams—(I) Model & Load Distribution Ratio,” Advances in Structural Engineering, V. 14, No. 6, pp. 1031-1042.
Klein, G. J., 2002, “Example 9: Pile Cap,” Examples for the Design for Structural Concrete with Strut-and-Tie Models, SP-208, K.-H. Reineck, ed., American Concrete Institute, Farmington Hills, MI, pp. 213-223.
Koutchoukali, N., and Belarbi, A., 2001, “Torsion of High-Strength Reinforced Concrete Beams and Minimum Reinforcement Requirement,” ACI Structural Journal, V. 98, No. 4, July-Aug., pp. 462-469.
Rahal, K. N., and Collins, M. P., 1995, “Analysis of Sections Subjected to Combined Shear and Torsion—A Theoretical Model,” ACI Structural Journal, V. 92, No. 4, July-Aug., pp. 459-469.
Rasmussen, L. J., and Baker, G., 1995, “Torsion in Reinforced Normal and High-Strength Concrete Beams—Part 1: Experimental Test Series,” ACI Structural Journal, V. 92, No. 1, Jan.-Feb., pp. 56-62.
Sabnis, G. M., and Gogate, A. B., 1984, “Investigation of Thick Slab (Pile Cap) Behavior,” ACI Journal Proceedings, V. 81, No. 1., Jan.-Feb., pp. 35-39.
Suzuki, K.; Otsuki, K.; and Tsubata, T., 1998, “Influence of Bar Arrangement on Ultimate Strength of Four-Pile Caps,” Transactions of the Japan Concrete Institute, V. 20, pp. 195-202.
Suzuki, K.; Otsuki, K.; and Tsuchiya, T., 2000, “Influence of Edge Distance on Failure Mechanism of Pile Caps,” Transactions of the Japan Concrete Institute, V. 22, pp. 361-368.
Yamada, T.; Nanni, A.; and Endo, K., 1992, “Punching Shear Resistance of Flat Slabs: Influence of Reinforcement Type and Ratio,” ACI Structural Journal, V. 88, No. 4, July-Aug., pp. 555-563.
Yun, Y. M.; Kim, B. H.; and Ramirez, J. A., 2017, “Three-Dimensional Grid Strut-and-Tie Model Approach in Structural Concrete Design,” ACI Structural Journal, V. 115, No. 1, Jan., pp. 15-26.