Title:
Effect of High-Strength Materials on Lateral Strength of Stocky Reinforced Concrete Walls
Author(s):
Steven M. Barbachyn, Robert D. Devine, Ashley P. Thrall, and Yahya C. Kurama
Publication:
Structural Journal
Volume:
114
Issue:
4
Appears on pages(s):
923-936
Keywords:
finite element modeling; high-strength concrete; high-strength reinforcing steel bars; low aspect ratio; reinforced concrete; shear design; squat walls; stocky walls
DOI:
10.14359/51689722
Date:
7/1/2017
Abstract:
Stocky reinforced concrete (RC) walls with low height-to-length aspect ratios stand to benefit greatly from high-strength steel and concrete because the lateral load designs for these walls are governed mostly by strength, with reduced demands for ductility, which is compatible with the reduced strain capacities of highstrength materials. This paper numerically investigates the effect of these materials on the peak lateral strength of stocky walls for buildings and non-containment, safety-related nuclear structures. A nonlinear finite element method and available closed-form design equations for predicting the wall lateral strength are compared with existing experimental results, culminating in modeling and design recommendations. The validated finite element method is then used to conduct a parametric investigation on the effect of high-strength steel and concrete on the wall lateral strength, specifically focusing on rectangular walls without boundary regions/members. Ultimately, the paper demonstrates the benefits (and limits) of high-strength materials for these walls, and provides an impetus for future experimental research and inclusion of these materials in ACI 318 and ACI 349. Modifications needed to the current ACI methods to predict the lateral strength of stocky walls are also discussed.
Related References:
1. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary,” American Concrete Institute, Farmington Hills, MI, 2014, 520 pp.
2. ACI Committee 349, “Code Requirements for Nuclear Safety-Related Concrete Structures (ACI 349-13) and Commentary,” American Concrete Institute, Farmington Hills, MI, 2013, 196 pp.
3. ASTM A615, “Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement,” ASTM International, West Conshohocken, PA, 2016, 8 pp.
4. ASTM A706, “Standard Spec. for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement,” ASTM International, West Conshohocken, PA, 2016, 7 pp.
5. Jones, J., and Ramirez, J. A., “Bond of Reinforcement in High-Strength Concrete,” ACI Structural Journal, V. 113, No. 3, May-June 2016, pp. 549-556. doi: 10.14359/51688620
6. ASTM A1035, “Standard Specification for Deformed and Plain, Low-Carbon, Chromium, Steel Bars for Concrete Reinforcement,” ASTM International, West Conshohocken, PA, 2016, 8 pp.
7. NIST, “Use of High-Strength Reinforcement in Earthquake-Resistant Concrete Structures,” NIST GCR 14-917-30, National Institute of Standards and Technology, Gaithersburg, MD, 2014, 231 pp.
8. Price, K. R.; Fields, D.; and Lowes, L. N., “The Impact of High-Strength Reinforcing Steel on Current Design Practice,” Charles Pankow Foundation, Vancouver, WA, 2013, 37 pp.
9. EPRI, “Advanced Nuclear Technology: Anchorage of High-Strength Reinforcing Bars with Standard Hooks,” Electric Power Research Institute, Inc., Palo Alto, CA, 2015, 308 pp.
10. Rautenberg, J. M.; Pujol, S.; Tavallali, H.; and Lepage, A., “Drift Capacity of Concrete Columns Reinforced with High-Strength Steel,” ACI Structural Journal, V. 110, No. 2, Mar.-Apr. 2013, pp. 307-317.
11. Tavallali, H.; Lepage, A.; Rautenberg, J.; and Pujol, S., “Concrete Beams Reinforced with High-Strength Steel Subjected to Displacement Reversals,” ACI Structural Journal, V. 111, No. 5, Sept.-Oct. 2014, pp. 1037-1048. doi: 10.14359/51686967
12. ACI Innovation Task Group 6, “Design Guide for the Use of ASTM A1035/A1035M Grade 100 (690) Steel Bars for Structural Concrete,” American Concrete Institute, Farmington Hills, MI, 2010, 90 pp.
13. ATC, “Roadmap for the Use of High-Strength Reinforcement in Reinforced Concrete Design,” Applied Technology Council 115, Redwood City, CA, 2014, 197 pp.
14. Luna, B. N.; Rivera, J. P.; and Whittaker, A. S., “Seismic Behavior of Low-Aspect-Ratio Reinforced Concrete Shear Walls,” ACI Structural Journal, V. 112, No. 5, Sept.-Oct. 2015, pp. 593-604. doi: 10.14359/51687709
15. Farvashany, F. E.; Foster, S. J.; and Rangan, B. V., “Strength and Deformation of High-Strength Concrete Shearwalls,” ACI Structural Journal, V. 105, No. 1, Jan.-Feb. 2008, pp. 21-29.
16. Liang, X., “Che, J.; Yang, P.; and Deng., M., “Seismic Behavior of High-Strength Concrete Structural Walls with Edge Columns,” ACI Structural Journal, V. 110, No. 6, Nov.-Dec. 2013, pp. 953-964.
17. Uchiyama, T.; Ishimura, K.; Takahashi, T.; and Hirade, T., “Study on Reactor Building Structure Using Ultrahigh Strength Materials, Part 4: Bending Shear Tests of RC Shear Walls,” SMiRT 11 Transactions, 1991, pp. 377-382.
18. Kabeyasawa, T., and Hiraishi, H., “Tests and Analyses of High Strength Reinforced Concrete Shear Walls in Japan,” High-Strength Concrete in Seismic Regions, SP-176, American Concrete Institute, Farmington Hills, MI, 1998, pp. 281-310.
19. Kabeyasawa, T., and Matsumoto, H., “Tests and Analyses of Ultra-High Strength Reinforced Concrete Shear Walls,” 10th World Conference on Earthquake Engineering, Madrid, Spain, 1992, pp. 3291-3296.
20. Saitoh, F.; Kuramoto, H.; and Minami, K., “Shear Behavior of Shear Walls Using High Strength Concrete,” Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan, CII, Tokyo, Japan, 1990, pp. 605-606. (in Japanese)
21. Yanagisawa, N.; Kamide, M.; and Kanoh, Y., “Study on High Strength Reinforced Concrete Shear Walls, Parts 1 and 2,” Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan, CII, Tokyo, Japan, 1992, pp. 347-350. (in Japanese)
22. Park, H.; Baek, J.; Lee, J.; and Shin, H., “Cyclic Loading Tests for Shear Strength of Low-Rise Reinforced Concrete Walls with Grade 500 MPa Bars,” ACI Structural Journal, V. 112, No. 3, May-June 2015, pp. 299-310. doi: 10.14359/51687406
23. Gulec, C. K., “Performance-Based Assessment and Design of Squat Reinforced Concrete Shear Walls,” PhD dissertation, SUNY Buffalo, Buffalo, NY, 2009, 719 pp.
24. Wong, P. S.; Vecchio, F. J.; and Trommels, H., VecTor2 & FormWorks User’s Manual, second edition, University of Toronto, Toronto, ON, Canada, 2013, 318 pp.
25. Palmero, D., and Vecchio, F. J., “Compression Field Modeling of Reinforced Concrete Subjected to Reversed Loading: Formulation,” ACI Structural Journal, V. 100, No. 5, Sept.-Oct. 2003, pp. 616-625.
26. Palmero, D., and Vecchio, F. J., “Compression Field Modeling of Reinforced Concrete Subjected to Reversed Loading: Verification,” ACI Structural Journal, V. 101, No. 2, Mar.-Apr. 2004, pp. 155-164.
27. Massone, L. M.; Orakcal, K.; and Wallace, J. W., “Modeling of Squat Structural Walls Controlled by Shear,” ACI Structural Journal, V. 106, No. 5, Sept.-Oct. 2009, pp. 646-655.
28. Iwashita, K.; Ishimura, K.; Kurihara, K.; and Imai, M., “Study on Reactor Building Structure using Ultrahigh Strength Materials, Part 5: Nonlinear Analysis of RC Shear Walls,” SMiRT 11 Transactions, 1991, pp. 383-388.
29. ASCE/SEI 43-05, “Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities,” American Society of Civil Engineers, Reston, VA, 2005, 81 pp.
30. Wood, S. L., “Shear Strength of Low-Rise Reinforced Concrete Walls,” ACI Structural Journal, V. 87, No. 1, Jan.-Feb. 1990, pp. 99-107.
31. Gulec, C. K., and Whittaker, A. S., “Empirical Equations for Peak Shear Strength of Low Aspect Ratio Reinforced Concrete Walls,” ACI Structural Journal, V. 108, No. 1, Jan.-Feb. 2011, pp. 80-89.
32. Barda, F.; Hanson, J. M.; and Corley, W. G., “Shear Strength of Low-Rise Walls with Boundary Elements,” Reinforced Concrete Structures in Seismic Zones, SP-53, American Concrete Institute, Farmington Hills, MI, 1977, pp. 149-202.
33. Vecchio, F. J., and Collins, M. P., “The Modified Compression Field Theory for Reinforced Concrete Elements Subject to Shear,” ACI Journal Proceedings, V. 83, No. 2, Mar.-Apr. 1986, pp. 219-231.
34. Vecchio, F. J., “Disturbed Stress Field Model for Reinforced Concrete: Formulation,” Journal of Structural Engineering, ASCE, V. 126, No. 9, 2000, pp. 1070-1077. doi: 10.1061/(ASCE)0733-9445(2000)126:9(1070)
35. Luna, B. N., “Seismic Response of Low Aspect Ratio Reinforced Concrete Walls for Buildings and Safety-Related Nuclear Applications,” PhD dissertation, SUNY Buffalo, Buffalo, NY, 2015, 436 pp.
36. Popovics, S., “A Numerical Approach to the Complete Stress-Strain Curve of Concrete,” Cement and Concrete Research, V. 3, No. 5, 1973, pp. 583-599. doi: 10.1016/0008-8846(73)90096-3
37. Vecchio, F. J., “Finite Element Modeling of Concrete Expansion and Confinement,” Journal of Structural Engineering, ASCE, V. 118, No. 9, 1992, pp. 2390-2406. doi: 10.1061/(ASCE)0733-9445(1992)118:9(2390)
38. Bentz, E. C., “Sectional Analysis of Reinforced Concrete Members,” PhD thesis, Department of Civil Engineering, University of Toronto, Toronto, ON, Canada, 2000, 310 pp.
39. Kupfer, H.; Hilsdorf, H. K.; and Rusch, H., “Behavior of Concrete under Biaxial Stress,” ACI Journal Proceedings, V. 66, No. 8, Aug. 1969, pp. 656-666.
40. Richart, F. E.; Brandtzaeg, A.; and Brown, R. L., “A Study of the Failure of Concrete under Combined Compressive Stresses,” Bulletin No. 185, University of Illinois Engineering Experimental Station, Urbana, IL, 1928, 104 pp.
41. Palermo, D., and Vecchio, F. J., “Behaviour and Analysis of Reinforced Concrete Walls Subjected to Reversed Cyclic Loading,” Publication No. 2002-01, Department of Civil Engineering, University of Toronto, Toronto, ON, Canada, 2002, 351 pp.
42. Seckin, M., “Hysteretic Behaviour of Cast-in-Place Exterior Beam-Column-Slab Subassemblies,” PhD thesis, Department of Civil Engineering, University of Toronto, Toronto, ON, Canada, 1981, 266 pp.
43. Asatsu, N.; Unjoh, S.; Hoshikuma, J.; and Kondoh, M., “Plastic Hinge Length of Reinforced Concrete Columns Based on the Buckling Characteristics of Longitudinal Reinforcement,” Journal of Structural Mechanics and Earthquake Engineering, V. 682, 2001, pp. 177-194. (in Japanese