Structural Engineering and Mechanics

  • 제85권2호
  • /
  • Pages.163-177
  • /
  • 2023
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical simulation by the finite element method of the constructive steps of a precast prestressed segmental bridge

  • Gabriela G., Machado (Civil Engineering Graduate Program, Federal University of Rio Grande do Sul) ;
  • Americo Campos, Filho (Civil Engineering Graduate Program, Federal University of Rio Grande do Sul) ;
  • Paula M., Lazzari (Civil Engineering Graduate Program, Federal University of Rio Grande do Sul) ;
  • Bruna M., Lazzari (Civil Engineering Graduate Program, Federal University of Rio Grande do Sul) ;
  • Alexandre R., Pacheco (Civil Engineering Graduate Program, Federal University of Rio Grande do Sul)
  • 투고 : 2022.05.18
  • 심사 : 2022.12.21
  • 발행 : 2023.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

The design of segmental bridges, a structure that typically employs precast prestressed concrete elements and the balanced cantilever construction method for the deck, may demand a highly complex structural analysis for increased precision of the results. This work presents a comprehensive numerical analysis of a 3D finite element model using the software ANSYS, version 21.2, to simulate the constructive deck stages of the New Guaiba Bridge, a structure located in Porto Alegre city, southern Brazil. The materials concrete and steel were considered viscoelastic. The concrete used a Generalized Kelvin model, with subroutines written in FORTRAN and added to the main model through the customization tool UPF (User Programmable Features). The steel prestressing tendons used a Generalized Maxwell model available in ANSYS. The balanced cantilever constructive steps of a span of the New Guaiba Bridge were then numerically simulated to follow the actual constructive sequence of the bridge. A comparison between the results obtained with the numerical model and the actual vertical displacement data monitored during the bridge's construction was carried out, showing a good correlation.

키워드

과제정보

The authors wish to acknowledge the financial support given by the Civil Engineering Graduate Program (PPGEC) of the Federal University of Rio Grande do Sul (UFRGS) and by the Brazilian Governmental Research Institutions CAPES and CNPq. The authors also wish to acknowledge the technical support given by the New Guaiba Bridge Consortium, DNIT, and ECOPLAN ING., which have contributed with the bridge designs and data that were fundamental in this study.

참고문헌

  1. Ahmed, G. and Aziz, O. (2019), "Shear strength of joints in precast posttensioned segmental bridges during 1959-2019, review and analysis", Struct., 20, 527-542. https://doi.org/10.1016/j.istruc.2019.06.007.
  2. Bazant, Z.P. and Prasannan, S. (1989a), "Solidification theory for concrete creep I: Formulation", J. Eng. Mech., 115(8), 1691-1703. https://doi.org/10.1061/(ASCE)0733-9399(1989)115:8(1691).
  3. Bazant, Z.P. and Prasannan, S. (1989b), "Solidification theory for concrete creep II: Verification and application", J. Eng. Mech., 115(8), 1691-1703. https://doi.org/10.1061/(ASCE)0733-9399(1989)115:8(1704).
  4. Brazilian Government (2020), https://www.gov.br/ptbr/noticias/transito-e-transportes/2020/12/inaugurada-novaponte-do-guaiba-no-rio- grande-do-sul.
  5. Chen, W. and Duan, L. (2000), Bridge Engineering Handbook, CRC Press LLC, New York, NY, USA.
  6. Comite Euro-International du Beton (1993), CEB-FIP Model Code 1990, Thomas Telford, London.
  7. Guaiba Bridge Consortium CQG and EGT (2018), The new Guaiba Bridge, Institute of Engineering, Brazil. https://www.institutodeengenharia.org.br/site/wpcontent/uploads/2018/11/Clique-e-veja-o-materiat%C3%A9cnico-da-palestra.pdf.
  8. Hoffman, I.S., Lazzari, B.M., Campos Filho, A., Lazzari, P.M. and Pacheco, A.R. (2022), "Finite element numerical simulation of a cable-stayed bridge construction through the progressive cantilever method", Struct. Concrete, 23, 632-651. https://doi.org/10.1002/suco.202100662.
  9. Karalar, M. and Yesil, M. (2021a), "Effect of near-fault earthquakes on a historical masonry arch bridge (Konjic Bridge)", Earthq. Struct., 21(2), 125-136. https://doi.org/10.12989/eas.2021.21.2.125.
  10. Karalar, M. and Yesil, M. (2021b), "Investigation on seismic behavior of historical tokatli bridge under near-fault earthquakes", Adv. Civil Eng., 2021, Article ID 5596760. https://doi.org/10.1155/2021/5596760.
  11. Karalar, M. and Yesil, M. (2022). "Examination of masonry arch bridge's life-cycle assessment under far-fault earthquakes", Gradevinar, 74(7), 587-598. https://doi.org/10.14256/JCE.3027.2020.
  12. Lazzari, B.M. (2020), "Static, modal and dynamic analysis of the construction stages of a cable-stayed bridge using the finite element method", Ph.D. Dissertation, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
  13. Lazzari, B.M., Campos Filho, A., Lazzari, P.M. and Pacheco, A.R. (2017a), "Using element-embedded rebar model in ANSYS for the study of reinforced and prestressed concrete structures", Comput. Concrete, 19(4), 347-356. https://doi.org/10.12989/cac.2017.19.4.347.
  14. Lazzari, P.M. (2016), "Numerical simulation of construction stages of cable-stayed bridges through the finite element method", Ph.D. Dissertation, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
  15. Lazzari, P.M., Campos Filho, A., Lazzari, B.M. and Pacheco, A.R. (2017b), "Structural analysis of a prestressed segmented girder using contact elements in ANSYS", Comput. Concrete, 20(3), 319- 327. https://doi.org/10.12989/cac.2017.20.3.319.
  16. Lazzari, P.M., Campos Filho, A., Lazzari, B.M., Pacheco, A.R. and Gomes, R.S. (2019), "Numerical simulation of the constructive steps of a cable-stayed bridge using ANSYS", Struct. Eng. Mech., 69(3), 269-281. https://doi.org/10.12989/sem.2019.69.3.269.
  17. Machado, G.G. (2022), "Numerical simulation by the finite element method of the constructive steps of a prescast prestressed segmented bridge", M.S. Dissertation, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
  18. Quevedo, F.P.M., Schmitz, R.J., Morsch, I.B., Campos Filho, A. and Bernaud, D. (2018), "Customization of a software of finite elements to analysis of concrete structures: Long-term effects", IBRACON Struct. Mater. J., 11(4), 696-718. https://doi.org/10.1590/S1983-41952018000400005.
  19. Spessatto, R.P. (2022), "Analysis by the finite element method of the behavior of bridge deck joints composed of precast concrete segments", M.S. Dissertation, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
  20. Zhang, W., Qian, K., Xie, L. and Ge, Y. (2019), "An iterative approach for time-domain flutter analysis of bridges based on restart technique", Wind Struct., 28(3), 171-180. https://doi.org/10.12989/was.2019.28.3.171.