Title: Inelastic Buckling of Continuously Restrained I-beams
Abstract: Publisher Summary This chapter discusses that I-section beams may be restrained continuously along one flange, the most common application being in through-girder bridges consisting of two parallel I-section beams connected by a deck at the bottom flange level. The compression flange is restrained only by the web and so, the buckling mode is generally a lateral distortional. The elastic buckling load in the compression flange is commonly predicted by the U-frame approach, and this method assumes the through-girder to be subjected to uniform bending. The elastic buckling load may then be converted into a design strength, utilizing the interaction between buckling and yielding. This chapter uses an energy method of analysis to study the inelastic buckling of beams, continuously and elastically restrained at the tension flange level, being typical of through-girders. The inelastic buckling strength is then predicted by recourse to the U-frame method and the Australian AS4100 steel code. Discrepancies between the design method and the accurate formulation are also explained in this chapter.
Publication Year: 1996
Publication Date: 1996-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
Cited By Count: 2
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