Title:
Structural Behavior of Precast Reinforced Concrete Tunnel Segments with Glass Fiber-Reinforced Polymer Bars and Ties under Bending Load
Author(s):
Seyed Mohammad Hosseini, Salaheldin Mousa, Hamdy M. Mohamed, and Brahim Benmokrane
Publication:
Structural Journal
Volume:
119
Issue:
1
Appears on pages(s):
307-319
Keywords:
bending load; cracking patterns and strains; design codes; experimental and analytical investigation; flexural and shear strength; glass fiber-reinforced polymer (GFRP) bars and ties; load deflection; precast concrete tunnel segments (PCTL); reinforcemen
DOI:
10.14359/51734143
Date:
1/1/2022
Abstract:
Using glass fiber-reinforced polymer (GFRP) reinforcement in precast concrete tunnel lining (PCTL) segments is a practical approach to overcome corrosion problems in underground tunnels. This study involved fabricating full-scale PCTL segments 3100 mm (122 in.) in length, 1500 mm (59 in.) in width, and 250 mm (10 in.) in thickness reinforced with curvilinear sand-coated GFRP bars and testing them under three-point bending load. The investigated parameters were the reinforcement type (GFRP and steel) and reinforcement ratio (0.48, 0.9, and 1.3%) with different configurations of GFRP bar spacing and size. The structural performance of the tested PCTL segments was evaluated in terms of cracking behavior, failure mechanism, load-deflection curve, strain analysis, and deformability. The test results indicate that the structural performance of GFRP-reinforced specimens under bending load was satisfactory in terms of cracking and deflection behavior at service load, ultimate load-carrying capacity, ultimate deflection, and deformability. In addition, increasing the reinforcement ratio changed the failure mode while enhancing the load-carrying capacity, stiffness, and cracking behavior. Lastly, an analytical investigation was conducted to evaluate the ACI 440.1R design provisions for predicting the flexural strength, shear capacity, and crack width of GFRP-reinforced PCTL segments. The experimental and analytical results are presented and discussed herein. The test results and outcomes of this study can serve in assessing and exploring the feasibility of using curvilinear GFRP bars in precast concrete tunnel segments in underground tunnel applications.
Related References:
American Association of State Highway and Transportation Officials, 2018, AASHTO LRFD Bridge Design Guide Specifications for GFRP-Reinforced Concrete, second edition, Washington, DC.
Abbas, S., 2014, “Structural and Durability Performance of Precast Segmental Tunnel Linings,” PhD dissertation, University of Western Ontario, London, ON, Canada.
ACI Committee 318, 2019, “Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19), ” American Concrete Institute, Farmington Hills, MI, 624 pp.
ACI Committee 440, 2015, “Guide for the Design and Construction of Structural Concrete Reinforced with Fiber-Reinforced Polymer Bars (ACI 440.1R-15),” American Concrete Institute, Farmington Hills, MI, 88 pp.
ACI Committee 533, 2020, “Guide for Precast Concrete Tunnel Segments (ACI 533.5R-20),” American Concrete Institute, Farmington Hills, MI, 85 pp.
ACI Committee 544, 2016, “Report on Design and Construction of Fiber-Reinforced Precast Concrete Tunnel Segments (ACI 544.7R-16),” American Concrete Institute, Farmington Hills, MI, 41 pp.
Al-Rubaye, M.; Manalo, A.; Alajarmeh, O.; Ferdous, W.; Lokuge, W.; Benmokrane, B.; and Edoo, A., 2020, “Flexural Behaviour of Concrete Slabs Reinforced with Gfrp Bars and Hollow Composite Reinforcing Systems,” Composite Structures, V. 236, p. 111836 doi: 10.1016/j.compstruct.2019.111836
American Concrete Institute, 1999, “Building Code Requirements for Structural Concrete (ACI 318-99) and Commentary (ACI 318R-99),” American Concrete Institute, Farmington Hills, MI, 369 pp.
ASTM D3171-15, 2015, “Standard Test Methods for Constituent Content of Composite Materials,” Method I: Procedure G, ASTM International, West Conshohocken, PA, 11 pp.
ASTM D7205/D7205M-06, 2016, “Standard Test Method for Tensile Properties of Fiber Reinforced Polymer Matrix Composite Bars,” ASTM International, West Conshohocken, PA, 13 pp.
Barris, C.; Torres, L.; Vilanova, I.; Mias, C.; and Llorens, M., 2017, “Experimental Study on Crack Width and Crack Spacing for Glass-FRP Reinforced Concrete Beams,” Engineering Structures, V. 131, pp. 231-242. doi: 10.1016/j.engstruct.2016.11.007
Bischoff, P.; Gross, S.; and Ospina, C., 2009, “The Story Behind Proposed Changes to ACI 440 Deflection Requirements for FRP-Reinforced Concrete,” Serviceability of Concrete Members Reinforced with Internal/External FRP Reinforcement, SP-264, C. Ospina, P. Bischoff, and T. Alkhrdaji, eds., American Concrete Institute, Farmington Hills, MI, pp. 53-76.
Campana, S.; Fernández Ruiz, M.; and Muttoni, A., 2014, “Shear Strength of Arch-Shaped Members without Transverse Reinforcement,” ACI Structural Journal, V. 111, No. 3, May-June, pp. 573-582. doi: 10.14359/51686574
Canadian Standards Association (CSA), 2012, “Design and Construction of Building Components with Fiber Reinforced Polymers (CSA S806-12),” CSA Group, Mississauga, ON, Canada, 187 pp.
Canadian Standards Association (CSA), 2019, “Canadian Highway Bridge Design Code (CSA S6-19),” CSA Group, Mississauga, ON, Canada, 1185 pp.
Caratelli, A.; Meda, A.; Rinaldi, Z.; and Spagnuolo, S., 2016, “Precast Tunnel Segments with GFRP Reinforcement,” Tunnelling and Underground Space Technology, V. 60, pp. 10-20. doi: 10.1016/j.tust.2016.07.011
Caratelli, A.; Meda, A.; Rinaldi, Z.; Spagnuolo, S.; and Maddaluno, G., 2017, “Optimization of GFRP Reinforcement in Precast Segments for Metro Tunnel Lining,” Composite Structures, V. 181, pp. 336-346. doi: 10.1016/j.compstruct.2017.08.083
Chang, K., and Seo, D., 2012, “Behavior of One-Way Concrete Slabs Reinforced with GFRP Bars,” Journal of Asian Architecture and Building Engineering, V. 11, No. 2, pp. 351-358. doi: 10.3130/jaabe.11.351
El-Nemr, A.; Ahmed, E. A.; and Benmokrane, B., 2013, “Flexural Behavior and Serviceability of Normal-and High-Strength Concrete Beams Reinforced with Glass Fiber-Reinforced Polymer Bars,” ACI Structural Journal, V. 110, No. 6, Nov.-Dec., pp. 1077-1088.
El-Nemr, A.; Ahmed, E. A.; El-Safty, A.; and Benmokrane, B., 2018, “Evaluation of the Flexural Strength and Serviceability of Concrete Beams Reinforced with Different Types of GFRP Bars,” Engineering Structures, V. 173, pp. 606-619. doi: 10.1016/j.engstruct.2018.06.089
Fernández Ruiz, M.; Plumey, S.; and Muttoni, A., 2010, “Interaction between Bond and Deviation Forces in Spalling Failures of Arch-Shaped Members without Transverse Reinforcement,” ACI Structural Journal, V. 107, No. 3, May-June, pp. 346-354.
Hassoun, M. N., and Al-Manaseer, A., 2020, Structural Concrete: Theory and Design, John Wiley & Sons, Inc., New York.
ISIS Canada Research Network, 2007, “Reinforced Concrete Structures with Fibre Reinforced Polymers,” ISIS Manual No. 3, University of Manitoba, Winnipeg, MB, Canada.
ITA WG2, 2019, “Guidelines for the Design of Segmental Tunnel Linings (ITA WG2-19),” International Tunneling and Underground Space Association, Switzerland.
Kassem, C.; Farghaly, A. S.; and Benmokrane, B., 2011, “Evaluation of Flexural Behavior and Serviceability Performance of Concrete Beams Reinforced with FRP Bars,” Journal of Composites for Construction, ASCE, V. 15, No. 5, pp. 682-695. doi: 10.1061/(ASCE)CC.1943-5614.0000216
Khavaran, A., 2019, “Investigation of Shear-Critical One-Way Concrete Slabs Internally Reinforced with GFRP Bars,” PhD dissertation, University of Toronto, Toronto, ON, Canada.
Masmoudi, R.; Theriault, M.; and Benmokrane, B., 1998, “Flexural Behavior of Concrete Beams Reinforced with Deformed Fiber Reinforced Plastic Reinforcing Rods,” ACI Structural Journal, V. 95, No. 6, Nov.-Dec., pp. 665-676.
Mousa, S.; Mohamed, H. M.; and Benmokrane, B., 2019a, “Deflection Prediction Methodology for Circular Concrete Members Reinforced with Fiber-Reinforced Polymer Bars,” ACI Structural Journal, V. 116, No. 2, Mar., pp. 279-293. doi: 10.14359/51713293
Mousa, S.; Mohamed, H. M.; and Benmokrane, B., 2019b, “Strength and Deformability Aspects of Circular Concrete Members Reinforced with Hybrid Carbon-FRP and Glass-FRP under Flexure,” Journal of Composites for Construction, ASCE, V. 23, No. 2, p. 04019005 doi: 10.1061/(ASCE)CC.1943-5614.0000931
Mousa, S.; Mohamed, H. M.; Benmokrane, B.; and Nanni, A., 2020, “Flexural Behavior of Long-Span Square Reinforced Concrete Members with Uniformly Distributed Fiber-Reinforced Polymer Bars,” ACI Structural Journal, V. 117, No. 4, July, pp. 209-222.
Naaman, A., and Jeong, M., 1995, “45 Structural Ductility of Concrete Beams Prestressed with FRP Tendons,” Proceedings, Non-Metallic (FRP) Reinforcement for Concrete Structures: Proceedings of the Second International RILEM Symposium, V. 29, CRC Press, Boca Raton, FL, pp. 379.
Nigro, E.; Bilotta, A.; Cefarelli, G.; Manfredi, G.; and Cosenza, E., 2012, “Flexural Tests on GFRP RC Slabs: Experimental Results and Numerical Simulations,” Proceedings, 6th International Conference on Bridge Maintenance, Safety and Management, CRC Press/Balkema, Taylor & Francis Group Stresa, Lake Maggiore, Italy.
Ospina, C. E., and Bakis, C. E., 2007, “Indirect Flexural Crack Control of Concrete Beams and One-Way Slabs Reinforced with FRP Bars,” Proceedings of 8th International of Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-8), University of Patras, Patras, Greece.
Sivagamasundari, R., and Kumaran, G., 2008, “A Comparative Study on the Flexural Behaviour of One-Way Concrete Slabs Reinforced with GFRP Reinforcements and Conventional Reinforcements When Subjected to Monotonic and Repeated Loading,” The Open Civil Engineering Journal, V. 2, No. 1, pp. 24-34. doi: 10.2174/1874149500802010024
Spagnuolo, S.; Meda, A.; Rinaldi, Z.; and Nanni, A., 2017, “Precast Concrete Tunnel Segments with GFRP Reinforcement,” Journal of Composites for Construction, ASCE, V. 21, No. 5, p. 04017020. doi: 10.1061/(ASCE)CC.1943-5614.0000803
Spagnuolo, S.; Meda, A.; Rinaldi, Z.; and Nanni, A., 2018, “Curvilinear GFRP Bars for Tunnel Segments Applications,” Composites. Part B, Engineering, V. 141, pp. 137-147. doi: 10.1016/j.compositesb.2017.12.038
Theriault, M., and Benmokrane, B., 1998, “Effects of FRP Reinforcement Ratio and Concrete Strength on Flexural Behavior of Concrete Beams,” Journal of Composites for Construction, ASCE, V. 2, No. 1, pp. 7-16. doi: 10.1061/(ASCE)1090-0268(1998)2:1(7)
Zhang, B.; Masmoudi, R.; and Benmokrane, B., 2004, “Behaviour of One-Way Concrete Slabs Reinforced with CFRP Grid Reinforcements,” Construction and Building Materials, V. 18, No. 8, pp. 625-635. doi: 10.1016/j.conbuildmat.2004.04.007