Research on Global Stability Design of Lower Flange of Steelconcrete Composite Beams under Negative Bending Moment

The instability problem of steel-concrete composite beams will occur in the negative bending area, and different codes get different results for beams bearing negative bending moment on stability. In this paper, the MATLAB is used to analyse the parameter sensitivity of span, height-thickness ratio...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1168; no. 2; pp. 22051 - 22057
Main Authors Wang, Shan, Cheng, Litao, Yu, Yuanqing
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2019
Subjects
Bending moments
Building codes
Composite beams
Composite bridges
Composite structures
Concrete
Concrete bridges
Concrete slabs
Data analysis
Parameter sensitivity
Reinforcing steels
Stability analysis
Thickness ratio
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Summary:The instability problem of steel-concrete composite beams will occur in the negative bending area, and different codes get different results for beams bearing negative bending moment on stability. In this paper, the MATLAB is used to analyse the parameter sensitivity of span, height-thickness ratio of web, concrete slab reinforcement ratio based on Eurocode 4 and China Code for Design of Steel and Concrete Composite Bridges. Through a large number of data analysis, the influence degree of each parameter on the stability is determined, and the results of the two codes are compared, which provides a basis for the design of the stability in the negative moment zone of steel-concrete composite beams.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1168/2/022051