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Deflections for continuous beams
Sun, 2008-11-02 03:49 - sridevi
hi all,
how the deflection of continuous beams are evaluated by using Rayleigh-Ritz method?
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Consult the chapter
Consult the chapter "Energy Methods of Structural Analysis" in the book "Aircraft structures for engineering students" by T. H. G. Megson. Write to me if you want the eversion of this book.
Defelections of steel beams
I have a doubt in maximum allowable defelections in steel beams.One of my friend told me that maximum allowable deflection of steelbeam(DIN standard) is taken as 2.5mm independent of length of beam.
My doubt is whether this allowable defelection depends on length...
Based on the design
Based on the design standard noted in the post, and the material
being steel, I am assuming this question relates to a civil
structural engineering context. Within such a context, it is commonly
left to the judgment of the engineer to specify serviceability
criteria such as maximum deflections. There are, however, "rules
of thumb":
1) deflection of a beam should be limited to either span / 240 or
span / 360 (the former being more commonly used in commercial
construction)
2) inter-story drift limited to story height / 500
and so on.
Best of luck.