Chapter
Apr 26, 2012
Seismic Retrofit of Large-Scale Reinforced Concrete Columns by Prestressed High-Strength Metal Strips
Authors: Hasan A. Moghaddam [email protected] and Maysam Samadi [email protected]Author Affiliations
Publication: Structures Congress 2009: Don't Mess with Structural Engineers: Expanding Our Role
Abstract
This paper presents the results of an experimental study on the application of pre-stressed high strength metal strips in retrofit of RC columns. Six 2/3 scale were deliberately designated with insufficient transverse reinforcement details and tested under constant axial and cyclic lateral load reversals. The level of axial load and the pattern of strengthening were parameters of this study. It was observed that the technique has been capable to enhance the lateral behavior of columns significantly, in terms of ductility. Very ductile behavior was obtained. The height-wise variations of lateral strain on confining strips are studied. The analysis of the fiber-based model of tested columns showed good agreement with experiments.
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© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Columns
- Concrete
- Concrete columns
- Construction engineering
- Construction methods
- Earthquake engineering
- Engineering fundamentals
- Engineering materials (by type)
- Geotechnical engineering
- Materials engineering
- Materials processing
- Metals (material)
- Prestressed concrete
- Prestressing
- Rehabilitation
- Reinforced concrete
- Seismic effects
- Seismic tests
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
Authors
Affiliations
Sharif University of Technology Tehran, Iran. E-mail: [email protected]
Sharif University of Technology Tehran, Iran. E-mail: [email protected]
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