Title:
Failure Mode and Shear Strength of Nonprestressed Hollow-Core Slabs in One-Way Shear
Author(s):
Tae-Sung Eom, In-Hye Hwang, Seung-Jae Lee, and Tae-Won Park
Publication:
Structural Journal
Volume:
115
Issue:
4
Appears on pages(s):
1131-1141
Keywords:
hollow-core slabs; reinforced concrete; shear strength; shear test; T-beams; void slabs
DOI:
10.14359/51702064
Date:
7/1/2018
Abstract:
In this study, the failure mode and shear strength of nonprestressed hollow-core slabs in one-way shear are investigated. First, nine hollow-core slabs with different void properties, such as the shape, location, and area of voids, are tested. The tests show that the nonprestressed hollow-core slabs are failed mainly by inclined tensile cracking in the compression zone, and the shear strengths of the hollow-core slabs are 20% to 30% less than that of the solid slab. Then, to estimate the slab shear strength depending on void properties, design equations based on a compression zone failure mechanism under inclined tensile cracking are formulated. For
verification, the proposed method is applied to 50 specimens with a wide range of design parameters. The results show that the predictions of the proposed methods agree with the test strengths.
Related References:
ACI Committee 318, 2014, “Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14),” American Concrete Institute, Farmington Hills, MI, 520 pp.
Aldejohann, M., and Schnellenbach-Held, M., 2004, “Investigations on the Shear Capacity of Biaxial Hollow Slabs – Test Results and Evaluation,” 5th International PhD Symposium in Civil Engineering, Delft, the Netherlands.
Anderson, A. R., 1978, “Shear Strength of Hollow Core Members,” Technical Bulletin 78-B1, Concrete Technology Associates, Tacoma, WA, Apr., 33 pp.
Anderson, R. G., 1987, “Web Shear Strength of Prestressed Concrete Members,” Technical Bulletin 85-B1, Concrete Technology Associates, Tacoma, WA, Mar.
Becker, R. J., and Buettner, D. R., 1985, “Shear Tests of Extruded Hollow Core Slabs,” PCI Journal, V. 30, No. 2, Mar., pp. 40-54. doi: 10.15554/pcij.03011985.40.54
Buettner, D. R., and Becker, R. J., 1998, PCI Manual for the Design of Hollow Core Slabs, second edition, Precast/Prestressed Concrete Institute, Chicago, IL.
Choi, K.-K.; Kim, J.-C.; and Park, H.-G., 2016, “Shear Strength Model of Concrete Beams Based on Compression Zone Failure Mechanism,” ACI Structural Journal, V. 113, No. 5, Sept.-Oct., pp. 1095-1106. doi: 10.14359/51689032
Choi, K.-K., and Park, H.-G., 2007, “Unified Shear Strength Model for Reinforced Concrete Beams—Part II: Verification and Simplified Method,” ACI Structural Journal, V. 104, No. 2, Mar.-Apr. pp. 153-161.
Choi, K.-K.; Park, H.-G.; and Wight, J. K., 2007, “Unified Shear Strength Model for Reinforced Concrete Beams—Part I: Development,” ACI Structural Journal, V. 104, No. 2, Mar.-Apr., pp. 142-152.
Chung, J.-H.; Lee, S.-C.; Choi, C.-S.; and Choi, H.-K., 2012, “One-Way Shear Strength of Donut Type Biaxial Hollow Slab Considered Hollow Shapes and Materials,” Journal of the Korea Concrete Institute, V. 24, No. 4, pp. 391-398. doi: 10.4334/JKCI.2012.24.4.391
Comité Europén de Normalization (CEN), 1992, “Eurocode 2—Design of Concrete Structures—Part 1-1: General Rules and Rules for Buildings,” ENV 1992-1-1, Brussels, Belgium, 100 pp.
Han, J.-H.; Kim, S.-D.; Kim, S.-M.; and Ju, Y.-K., 2011a, “Evaluation of Shear Behavior Void Slabs with Deck,’,” Journal of the Korean Society of Hazard Mitigation, V. 11, No. 4, pp. 1-7. doi: 10.9798/KOSHAM.2011.11.4.001
Han, S.-H.; Rew, Y.-H.; Park, Y.-M.; Kim, J.-S.; and Im, J.-H., 2011b, “Flexural and Shear Strength of the Void Transfer Slabs,” Journal of the Architectural Institute of Korea, V. 27, No. 2, pp. 11-18.
Hawkins, N. M., and Ghosh, S. K., 2006, “Shear Strength of Hollow-Core Slabs,” PCI Journal, V. 51, No. 1, Jan.-Feb., pp. 110-114.
Joo, E.-H.; Kim, S.-M.; Kang, J.-Y.; Kim, H.-G.; and Park, H.-G., 2011, “Structural Performance Test on Installation Method of Void Former for Void Slab using Deck Plate,” Journal of the Architectural Institute of Korea, V. 27, No. 3, pp. 31-38.
Kim, G.-C.; Seok, K.-Y.; and Kang, J.-W., 2013, “Evaluation of Flexural Performance of One-Way Voided Slabs,” Journal of the Architectural Institute of Korea, V. 29, No. 8, pp. 11-18.
Kim, S.-M.; Jang, T.-Y.; and Kim, S.-S., 2009, “Structural Performance Tests of Two-Way Void Slabs,” Journal of the Architectural Institute of Korea (Structural), V. 25, No. 8, pp. 35-42.
Kotsovos, M. D.; Bobrowski, J.; and Eibl, J., 1987, “Behaviour of Reinforced Concrete T-Beams in Shear,” The Structural Engineer, V. 65B, No. 1, pp. 1-10.
Pajari, M., 2005, “Resistance of Prestressed Hollow Core Slabs Against Web Shear Failure,” Research Notes 1292, VTT Building and Transport, Kemistintie, Finland, Apr., 69 pp.
Palmer, K. D., and Schultz, A. E., 2010, “Factors Affecting Web-Shear Capacity of Deep Hollow-Core Units,” PCI Journal, V. 55, No. 2, pp. 123-146. doi: 10.15554/pcij.03012010.123.146
Park, R., and Paulay, T., 1975, Reinforced Concrete Structures, John Wiley & Sons, Inc., New York.
Seok, K.-Y.; Ye, S.-M.; and Kang, J.-W., 2014, “Shear Strength of One-way Hollow Slab According to Effective Cross Section and Reinforcement Ratio,” Journal of the Korean Institute for Structural Maintenance and Inspection, V. 18, No. 2, pp. 90-98. doi: 10.11112/jksmi.2014.18.2.090
Tureyen, A. K., and Frosch, R. J., 2003, “Concrete Shear Strength: Another Perspective,” ACI Structural Journal, V. 100, No. 5, Sept.-Oct., pp. 609-615.
Tureyen, A. K.; Wolf, T. S.; and Frosch, R. J., 2006, “Shear Strength of Reinforced Concrete T-Beams without Transverse Reinforcement,” ACI Structural Journal, V. 103, No. 5, Sept.-Oct., pp. 656-663.
Wight, J. K., and MacGregor, J. G., 2012, Reinforced Concrete: Mechanics and Design, sixth edition, Pearson Education, Inc., Upper Saddle River, NJ, 2012, 1157 pp.
Yang, L., 1994, “Design of Prestressed Hollow Core Slabs with Reference to Web Shear Failure,” Journal of Structural Engineering, ASCE, V. 120, No. 9, pp. 2675-2696. doi: 10.1061/(ASCE)0733-9445(1994)120:9(2675)
Zararis, I. P.; Karaveziroglou, M. K.; and Zararis, P. D., 2006, “Shear Strength of Reinforced Concrete T-Beams,” ACI Structural Journal, V. 103, No. 5, Sept.-Oct. pp. 693-700.