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Improved codal recommendations for design of RC dog-legged stairs supported on transverse landing edges
Published in
2010
Volume: 37
   
Issue: 5
Pages: 342 - 346
Abstract
This paper highlights a shortcoming in the IS 456 and BS 8110 recommendations for simplified analysis of reinforced concrete (RC) dog-legged stairs supported on transverse landing edges. Based on a comprehensive study using finite element analysis with plate-shell elements, and a limited experimental study, it is established that the landing-going junctions of such stairs offer translational and rotational restraints, hitherto neglected in simplified analysis. The resulting distribution of bending moments is significantly different from the one traditionally adopted in design practice. Recommendations are proposed in this paper for making the design more rational and economical.
About the journal
JournalJournal of Structural Engineering (Madras)
ISSN09700137
Open AccessNo
Concepts (16)
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    BS 8110
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    Comprehensive studies
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    DESIGN PRACTICE
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    DOG-LEGGED STAIR
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    Experimental studies
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    Finite element analysis
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    ROTATIONAL RESTRAINTS
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    Shell element
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    SIMPLIFIED ANALYSIS
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    Bending (deformation)
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    Concrete buildings
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    Design
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    Landing
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    Reinforced concrete
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    Stairs
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    Finite element method