Development of a Novel Type of Open-Web Continuous Reinforced-Concrete Rigid-Frame Bridge
Publication: Journal of Bridge Engineering
Volume 25, Issue 8
Abstract
Long-span continuous reinforced-concrete rigid-frame bridges are sensitive to the shrinkage and creep of concrete and the relaxation of prestressing tendons and have experienced problems related to serviceability loss because of excessive multidecade deflections. Moreover, the large negative bending moment and shear force in the box girder near the piers may lead to cracks in the top slabs and webs. To improve the structural performance and mitigate the long-term deflection of bridges, a novel type of open-web continuous reinforced-concrete rigid-frame bridge was developed during the design of the Beipan River Bridge with a 290-m main span. In this paper, the design and construction techniques of the novel bridge type are summarized first. Then, a structural analysis of the Beipan River Bridge is conducted. The results are compared with conventional rigid-frame bridges. Moreover, the long-term girder deflections are checked through the combined application of monitoring data and finite-element analysis. The results show that the bridge alignment is quite stable during the first 5 years in service and that the open-web design philosophy can effectively mitigate the long-term girder deflections.
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Acknowledgments
The authors would like to thank all the engineers, technicians, and researchers involved in the design and construction of the Beipan River Bridge. This research was financially supported by the Research Project of CCCC Second Highway Consultants (Contract No. KJFZ-2019-029).
References
Bazant, Z. P., M. H. Hubler, and Q. Yu. 2011. “Pervasiveness of excessive segmental bridge deflections: Wake-up call for creep.” ACI Struct. J. 108 (6): 766–774.
Bazant, Z. P., Q. Yu, and G. H. Li. 2012. “Excessive long-time deflections of prestressed box girders. I: Record-span bridge in Palau and other paradigms.” J. Struct. Eng. 138 (6): 676–686. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000487.
Feng, P. C. 2009. “Study of key technical issues on design of continuous rigid-frame bridge.” [In Chinese.] Bridge Constr. 6: 46–49.
Guo, T., and Z. Chen. 2016. “Deflection control of long-span PSC box-girder bridge based on field monitoring and probabilistic FEA.” J. Perform. Constr. Facil 30 (6): 04016053. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000909.
Guo, T., R. Sause, D. M. Frangopol, and A. Li. 2011. “Time-dependent reliability of PSC box-girder bridge considering creep, shrinkage, and corrosion.” J. Bridge Eng. 16 (1): 29–43. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000135.
Guo, T., Z. Chen, T. Liu, and D. Han. 2016. “Time-dependent reliability of strengthened PSC box-girder bridge using phased and incremental static analyses.” Eng. Struct. 117: 358–371. https://doi.org/10.1016/j.engstruct.2016.03.011.
Huang, H., S. S. Huang, and K. Pilakoutas. 2018. “Modeling for assessment of long-term behavior of prestressed concrete box-girder bridges.” J. Bridge Eng. 23 (3): 04018002. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001210.
Lucko, G., and J. M. de la Garza. 2003. “Constructability considerations for balanced cantilever construction.” Pract. Period. Struct. Des. Constr. 8 (1): 47–56. https://doi.org/10.1061/(ASCE)1084-0680(2003)8:1(47).
Ma, Z. D., and A. S. Liu. 2015. “Technical measures for control of excessive deflection of girders of long span continuous rigid-frame bridges.” [In Chinese.] Bridge Constr. 45 (2): 71–76.
Malm, R., and H. Sundquist. 2010. “Time-dependent analyses of segmentally constructed balanced cantilever bridges.” Eng. Struct. 32 (4): 1038–1045. https://doi.org/10.1016/j.engstruct.2009.12.030.
Ministry of Transport of China. 2015. General specifications for design of highway bridges and culverts. [In Chinese.] JTG D60-2015. Beijing: Ministry of Transport of China.
Ministry of Transport of China. 2018. Code for design of highway reinforced concrete and prestressed concrete bridges and culverts. [In Chinese.] JTG 3362-2018. Beijing: Ministry of Transport of China.
Pan, Z., C. C. Fu, and Y. Jiang. 2011. “Uncertainty analysis of creep and shrinkage effects in long-span continuous rigid frame of Sutong Bridge.” J. Bridge Eng. 16 (2): 248–258. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000147.
Takács, P. F. 2002. “Deformation in concrete cantilever bridges: Observations and theoretical modeling.” Ph.D. thesis, Dept. of Structural Engineering, Norwegian Univ. of Science and Technology.
Tang, M. C. 2015. “Segmental bridges in Chongqing, China.” J. Bridge Eng. 20 (8): B4015001. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000696.
Wang, H., C. Xie, D. Liu, and S. Qin. 2019. “Continuous reinforced concrete rigid-frame bridges in China.” Pract. Period. Struct. Des. Constr. 24 (2): 05019002. https://doi.org/10.1061/(ASCE)SC.1943-5576.0000421.
Xie, Y., H. Yang, Z. Zuo, and Z. Gao. 2019. “Optimal depth-to-span ratio for composite rigid-frame bridges.” Pract. Period. Struct. Des. Constr. 24 (2): 05019001. https://doi.org/10.1061/(ASCE)SC.1943-5576.0000419.
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© 2020 American Society of Civil Engineers.
History
Received: Nov 14, 2019
Accepted: Apr 7, 2020
Published online: Jun 4, 2020
Published in print: Aug 1, 2020
Discussion open until: Nov 4, 2020
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