Strain compatibility in the strength design of RC slabs

•The need of strain compatibility assumption in the design of RC slabs in shown.•Examples that reflect the error in the traditional design procedure are shown.•Behavior of the new formulation is compared with other methods.•Liability concerns of the traditional method are presented. This paper prese...

Full description

Saved in:
Bibliographic Details
Published in:Engineering structures 2019-01, Vol.178, p.423-435
Main Authors: Gil-Martín, L.M., Hernández-Montes, E.
Format: Article
Language:English
Subjects:
Balance point
Compatibility
Concrete slabs
Design
Liability
Numerical analysis
Optimization
Reinforced concrete
Shear strength
Shell
Slab
Slabs
Strain compatibility
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•The need of strain compatibility assumption in the design of RC slabs in shown.•Examples that reflect the error in the traditional design procedure are shown.•Behavior of the new formulation is compared with other methods.•Liability concerns of the traditional method are presented. This paper presents a compact formulation of a new method for the design of RC slabs to ultimate state of shear, bending and torsion that overcomes the lack of strain compatibility substantiation presented by previous methods used in the available software. This new approach provides designs which behave closer to experiments than the previous ones due to the use of a necessary assumption in regard to strain compatibility. The fact that the new method gives higher amounts of reinforcement than the previous methods leads to a liability concern in the current design of RC slabs. The authors present this new method in an easy to understand way. Existing experimental and numerical tests show the good behavior of the method.
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2018.10.045