Seismic Analysis of Composite Box Girders with Corrugated Steel Webs and Trusses

Aparna, P.; Varghese, Binol

doi:10.1007/978-981-15-5644-9_18

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Accordingly, the research on this kind of composite structures also becomes an important aspect in the field of bridge engineering (He et al, 2012;Aparna et al, 2020). In fact, although the improved type of composite box girders is under construction, the studies on analytical theories and key technologies still need to be developed to deal with the problems derived by the specific working characteristics of composite structures (Deng et al, 2021;Jiang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The Multi-Functional Modelling Shear Lag Method for Accurate Calculation of Static Response and Accordion Effect of Improved Composite Box Girders

Ya-nan

Zhang

Wang

2023

BJRBE

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The composite box girder with corrugated web and steel bottom plate (CW-SBS) is a kind of improved steel-concrete structures. The design of CW-SBS box girders needs the accurate method to calculate the working response and accordion effect in consideration of the self-stress equilibrium condition of shear lag warping stress and shear deformation. This study proposes the multi-functional modelling shear lag (MFMSL) method which adopts the four longitudinal displacement difference functions to model the variation of shear lag in the CW-SBS box girders with different wing slab widths and thicknesses. Therefore, MFMSL is a method to calculate the static response and accordion effect of the CW-SBS composite box girders. Structural differential equations based on the energy-variation principle present that the MFMSL method effectively improves the calculating accuracy of the CW-SBS box girder static response, which can be verified by both experimental and simulative results. Also, the MFMSL method demonstrates that the accordion effect of the CW-SBS box girder is stronger than that of the traditional composite box girder and closely relates to the load distribution. Hence, the proposed method further lays the foundation for the analysis and design of CW-SBS box girders.

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