DOI QR코드

DOI QR Code

Analysis of corrugated steel web beam bridges using spatial grid modelling

  • Xu, Dong (Department of Bridge Engineering, Tongji University) ;
  • Ni, Yingsheng (Department of Bridge Engineering, Tongji University) ;
  • Zhao, Yu (Department of Bridge Engineering, Tongji University)
  • 투고 : 2013.12.16
  • 심사 : 2014.09.29
  • 발행 : 2015.04.25

초록

Up to now, Japan has more than 200 corrugated steel web composite beam bridges which are under construction and have been constructed, and China has more than 30 corrugated steel web composite beam bridges. The bridge type includes the simply supported beam, continuous beam, continuous rigid frame and cable stayed bridge etc. The section form has developed to the single box and multi-cell box girder from the original single box and single chamber. From the stress performance and cost saving, the span range of 50~150 m is the most competitive. At present, the design mostly adopts the computational analytical method combining the spatial bar system model, plane beam grillage model and solid model. However, the spatial bar system model is short of the refinement analysis on the space effect, such as the shear lag effect, effective distribution width problem, and eccentric load factor problem etc. Due to the similarity of the plane beam grillage method in the equivalence principle, it cannot accurately reflect the shearing stress distribution and local stress of the top and bottom plates of the box type composite beam. The solid model is very difficult to combine with the overall calculation. Moreover, the spatial grid model can achieve the refinement analysis, with the integrity of the analysis and the comprehensiveness of the stress checking calculation, and can make up the deficiency of the analytical method currently. Through the example verification of the solid model and spatial grid model, it can be seen that the calculation results for the stress and the displacement of two models are almost consistent, indicating the applicability and precision of the spatial grid model.

키워드

과제정보

연구 과제번호 : The shear mechanism research of grid reinforced concrete structure

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Prestressed concrete bridges with corrugated steel webs: Nonlinear analysis and experimental investigation vol.21, pp.5, 2016, https://doi.org/10.12989/scs.2016.21.5.1045
  2. Structural system identification of thin web bridges by observability techniques considering shear deformation vol.123, 2018, https://doi.org/10.1016/j.tws.2017.11.017
  3. General Design and Key Technology of Nanchang Chaoyang Bridge pp.1683-0350, 2019, https://doi.org/10.1080/10168664.2018.1549466
  4. Numerical analysis of steel-soil composite (SSC) culvert under static loads vol.23, pp.6, 2015, https://doi.org/10.12989/scs.2017.23.6.715
  5. Reinforcement design of the top and bottom slabs of composite box girder with corrugated steel webs vol.33, pp.4, 2015, https://doi.org/10.12989/scs.2019.33.4.537
  6. Technical Advances of Temporary Facilities for the Failure Prevention of Large-Span Cantilever Casting Construction of Mountainous Concrete Box-Type Arch Bridges vol.2020, pp.None, 2020, https://doi.org/10.1155/2020/6412613
  7. New extended grillage methods for the practical and precise modeling of concrete box-girder bridges vol.23, pp.6, 2020, https://doi.org/10.1177/1369433219891559
  8. Prefabricated steel structures with a corrugated web (Part 1. Beam) vol.869, pp.None, 2015, https://doi.org/10.1088/1757-899x/869/7/072041