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Displacement and curvature estimation for the design of reinforced concrete slender walls
- Source :
- The Structural Design of Tall and Special Buildings. 25:823-841
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- SUMMARY Previous earthquakes, such as the 2010 Maule earthquake in Chile, have demonstrated the need to establish suitable predictors of compressive or tensile strains in concrete or steel in reinforced concrete shear walls, which can provide limit states or confinement requirements. Slender walls are commonly controlled by flexural deformations that can be divided into elastic and inelastic components. This study provides calibrated expressions for the elastic and inelastic components of flexural deformations using a fiber model for slender walls. These expressions are obtained for rectangular and T-shaped walls. The elastic component is dependent on the axial load and the boundary steel reinforcement ratio. The impact of wall coupling is investigated, which requires a correction for the elastic component. The investigation of the inelastic component is based on a plastic hinge model, in which the length of the plastic hinge is a function of the lateral inelastic drift of the wall among other parameters. The traditional linear inelastic curvature distribution over the wall height is also modified for cases with steel reinforcement with a long yield plateau or low strain hardening, which results in a larger curvature at the wall base. The distribution is validated with experimental data from the literature. Copyright © 2016 John Wiley & Sons, Ltd.
- Subjects :
- Yield (engineering)
Materials science
business.industry
0211 other engineering and technologies
020101 civil engineering
02 engineering and technology
Building and Construction
Structural engineering
Strain hardening exponent
Curvature
0201 civil engineering
Physics::Fluid Dynamics
Flexural strength
021105 building & construction
Architecture
Ultimate tensile strength
Plastic hinge
Shear wall
Coupling (piping)
business
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 15417794
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- The Structural Design of Tall and Special Buildings
- Accession number :
- edsair.doi...........63e94025f555ac349dbd80c8361a05ad