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Abstract

To study the stress characteristics of corrugated steel web box girders under vertical temperature gradient loads, this paper employed the civil structural nonlinear simulation software Midas FEA to build a three-dimensional finite element analysis model of corrugated steel web box girder bridges. Meanwhile, the temperature effects of corrugated steel web box girders under two constraint conditions of simply supported structures and continuous structures under vertical temperature gradient loads were compared and analyzed. The results demonstrate that under vertical temperature gradient loads, the temperature effect generated by corrugated steel web box girders is significant and cannot be ignored. The temperature effect of corrugated steel web box girders under continuous structural constraints is more significant than that of the simply supported structures under temperature gradient loads. Therefore, the influence of boundary constraint conditions on the temperature effect of corrugated steel web box girder bridges should be comprehensively considered. Additionally, the maximum temperature stress is obtained at the connection joint between the top and bottom concrete and the corrugated steel web, and the peak stress of this structure should be given special attention during the design stage.

Publication Date

1-18-2024

DOI

10.14048/j.issn.1671-2579.2023.06.013

First Page

79

Last Page

84

Submission Date

March 2025

Reference

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