Abstract
Transverse post-tensioning arrangement in prefabricated prestressed concrete (PC) box-girder bridge can effectively improve the transverse connection’s performance to avoid stress concentration. The number of transverse post-tensioning tendons and the transverse post-tensioning force are crucial factors determining the live load’s lateral distribution. Four prefabricated PC box-girder model tests were carried out to calculate the lateral distribution of the live load. Based on experimental results, the recommended values of the reduction factors of contact interfaces considering the effective longitudinal transfer length of transverse post-tensioning were given, and a simplified method of lateral distribution factor was proposed. The proposed simplified method results were compared with the PCI code, experiments, finite element method, articulated plate method, and rigid-plate method. The results showed that the lateral distribution factor calculated by the simplified method agreed with the results of experiments and the finite element method. The average relative differences were less than 8%. In comparison, the relative differences were more than 15% for the PCI code, articulated plate method, and rigid plate method. Thus, the proposed method could meet the engineering application and be adopted to calculate the lateral distribution factor of bridges with transverse post-tensioning.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
AASHTO and LRFD (2019) Bridge design specifications, 9th edition. Load and Resistance Factor Design, Washington DC, USA
ACI Committee (2014) International organization for standardization building code requirements for structural concrete and commentary. ACI 318-14, American Concrete Institute, Farmington Hills, MI, USA
Badwan IZ, Liang RY (2007) Performance evaluation of precast posttensioned concrete multibeam deck. Journal of Performance of Constructed Facilities 21(5):368–374, DOI: https://doi.org/10.1061/(ASCE)0887-3828(2007)21:5(368)
Chen L, Graybeal B (2012a) Modeling structural performance of second-generation ultrahigh performance concrete pi-beams. Journal of Bridge Engineering 17(4):634–643, DOI: https://doi.org/10.1061/(ASCE)BE.1943-5592.0000301
CSA (2009) A23.3-04. Design of concrete structures. CSA A23.3-04, Canadian Standards Association, Mississauga, Canada
Fiset M, Bastien J, Mitchell D (2019) Shear strengthening of concrete members with unbonded transverse reinforcement. Engineering Structures 180:40–49, DOI: https://doi.org/10.1016/j.engstruct.2018.11.008
French CE, Ma ZJ, Cao Q, Zhu P (2012) Fatigue evaluation of transverse U-bar joint details for accelerated bridge construction. Journal of Bridge Engineering 17(2):191–200, DOI: https://doi.org/10.1061/(ASCE)BE.1943-5592.0000257
Fu CC, Pan Z, Ahmed MS (2011) Transverse post-tensioning design of adjacent precast solid multi beam bridges. Journal of Performance of Constructed Facilities 25(3):223–230, DOI: https://doi.org/10.1061/(ASCE)CF.1943-5509.0000147
Hanna KE, Morcous G, Tadros MK (2009) Transverse post-tensioning design and detailing of precast, prestressed concrete adjacent-box-girder bridges. PCI Journal 54(4):159–174, DOI: https://doi.org/10.15554/pcij.09012009.159.174
Hansen J, Hanna K, Tadros MK (2012) Simplified transverse post-tensioning construction and maintenance of adjacent box girders. PCI Journal 57(2):64–79, DOI: https://doi.org/10.15554/pcij.03012012.64.79
Hu Z, Shah YI, Yu S (2021) Cracking analysis of pre-stressed steel-concrete composite girder at negative moment zone. Arabian Journal for Science and Engineering 46(11):10771–10783, DOI: https://doi.org/10.1007/s13369-021-05539-1
Hussein H, Sargand SM, Al-Jhayyish AK, Khoury I (2017) Contribution of transverse tie bars to load transfer in adjacent prestressed box-girder bridges with partial depth shear key. Journal of Performance of Constructed Facilities 31(2):1–11, DOI: https://doi.org/10.1061/(asce)cf.1943-5509.0000973
Lall J, Alampalli S, DiCocco EF (1998) Performance of full depth shear keys in adjacent prestressed box-beam bridges. PCI Journal 43(2): 72–79, DOI: https://doi.org/10.15554/pcij.03011998.72.79
Li X, Aziz N, Mirzaghorbanali A, Nemcik J (2016) Behavior of fiber glass bolts, rock bolts and cable bolts in shear. Rock Mechanics and Rock Engineering 49(7):2723–2735, DOI: https://doi.org/10.1007/s00603-015-0907-7
Mercan B, Schultz AE, Stolarski HK (2010) Finite element modeling of prestressed concrete spandrel beams. Engineering Structures 32(9): 2804–2813, DOI: https://doi.org/10.1016/j.engstruct.2010.04.049
Pan ZF, Chung C, Fu LZ (2010) Study on transverse post-tensioning in assembly slab bridges. Journal of Southeast University (Natural Science Edition) 40(6):1264–1270 (in Chinese)
PCI (2018) PCI bridge design manual, 8th edition. Precast/Prestressed Concrete Institute, Chicago, IL, USA
Shady N, Labib SM (2021) Adjacent concrete box girders transversely post-tensioned at top flanges only: Experimental investigation. Journal of Bridge Engineering 26(4)
Yu B, Ye JS, Zhang J (2011) Transverse shear of fabricated concrete articulated plate bridge. Journal of Shenzhen University (Science and Engineering) 28(1):60–64 (in Chinese)
Acknowledgments
All the experimental works were carried out at the Mechanics and Structure Laboratory of Jiangxi Provincial Expressway Investment Group Co., Ltd. of China.
This research was financially supported by National key research and development special funded projects program of China (2017YFC0806000) and the Project of “5511” Innovation Driven Project of Jiangxi Province (20165ABC28001).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hu, Z., Li, X. & Shah, Y.I. Simplified Method for Lateral Distribution Factor of the Live Load of Prefabricated Concrete Box-Girder Bridges with Transverse Post-tensioning. KSCE J Civ Eng 26, 3460–3470 (2022). https://doi.org/10.1007/s12205-022-0757-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12205-022-0757-2