Sensitivity Analysis of Construction Control Parameters for Long-Span Hybrid Girder Rigid Frame Bridges

Abstract

In the actual construction process, there are many factors that affect the alignment and structural performance of bridges, and their influence on bridge structures should not be underestimated. This paper conducts a simulation analysis of a large-span hybrid girder rigid frame bridge using Midas/Civil2020. Deflection values in the completed state are used as evaluation criteria. Sensitivity analysis is performed on construction control parameters such as the self-weight of the girder, girder stiffness, prestressing parameters, environmental temperature, and unbalanced basket weight. This analysis determines the degree of influence of these parameters on the bridge structure, providing a basis for bridge monitoring during actual construction and offering relevant monitoring recommendations.

Keywords

hyper girder rigid frame bridge / finite element calculation / sensitivity parameter analysis

References

[1] Zou, C. Structural Analysis of Steel-concrete Combination Section of Hybrid Beam Rigid Frame Bridge. Southwest Jiaotong University, Chengdu, China, 2013.

[2] Yang, C. Technological Innovation and Overall Design of the Hybrid Girder Continuous Frame Bridge with Main Span of 216m on Hangzhou-Wenzhou Railway. Railway Standard Design 2023, 67, 77-83, doi: 10.13238/j.issn.1004-2954.202112150006.

[3] Xu, G.; Liu, G.; Wu, W.; Tang, L. New Progress in the Application of Steel-concrete Joints in Bridge Structures. Highway 2010, 18-23.

[4] Wang, C.; Li, L.; Chen, X.; Bai, Y. Innovative Accelerated Construction Method for Yushan Bridge, China. Proc Inst Civ Eng-Br 2021, 174, 45-55, doi: 10.1680/jbren.19.00020.

[5] Ding, Z. Research on Key Technologies of Hybrid girder Continuous Steel Bridges. Basic Construction 2018.

[6] Liu, T. Parameter Sensitivity and Structural Robustness Analysis of Long-span Continuous rigid frame Bridge. Water Science and Engineering Technology 2010, 63-64.

[7] Ma, S.; Yu, C.; Geng, B. Sensitivity Analysis of PC Continuous Rigid Frame Bridge Construction Control Parameters. Highway and Transportation Technology 2013, 29, 93-95, 100, doi: 10.3969/j.issn.1009-6477.2013.04.022.

[8] Li, H.; Song, C.; Chen, P.; Chai, Z.; Xie, L. Sensitivity Analysis of Construction Control Parameters of PC Continuous Rigid Frame Bridge with Long Span. Journal of Xihua University (Natural Science Edition) 2020, 39, 54-59, doi: 10.12198/j.issn.1673-159X.3038.

[9] Tian, Z. Sensitivity analysis of Mechanical properties of beam-arch composite bridge. Highway 2021, 66, 171-175.