Rehabilitation and repair of reinforced concrete short columns with external steel collarsReport as inadecuate




Rehabilitation and repair of reinforced concrete short columns with external steel collars - Download this document for free, or read online. Document in PDF available to download.

Reinforced concrete-Maintenance and repair, Reinforcing bars-Testing, Reinforced concrete construction

Additional contributors:

Subject-Keyword: Reinforced concrete-Maintenance and repair Reinforcing bars-Testing Reinforced concrete construction

Type of item: Structural Engineering Report

Ser: SER281

Language: English

Place:

Time:

Description: Structural engineering report SER 281

Date created: 2008

DOI: doi:10.7939-R3N00ZV6F

License information: Creative Commons Attribution-Non-Commercial 3.0 Unported

Rights:





Author: Liu, Jianhua Driver, Robert G. Lubell, Adam S.

Source: https://era.library.ualberta.ca/


Teaser



University of Alberta Department of Civil & Environmental Engineering Structural Engineering Report No.
281 REHABILITATION AND REPAIR OF REINFORCED CONCRETE SHORT COLUMNS WITH EXTERNAL STEEL COLLARS by Jianhua Liu Robert G.
Driver and Adam S.
Lubell October 2008 Rehabilitation and Repair of Reinforced Concrete Short Columns with External Steel Collars by Jianhua Liu Robert G.
Driver and Adam S.
Lubell Structural Engineering Report 281 Department of Civil and Environmental Engineering University of Alberta Edmonton, Alberta, Canada October 2008 ACKNOWLEDGEMENTS Funding for this research project was provided by the Natural Sciences and Engineering Research Council of Canada.
Fabrication of the steel collars was conducted, and partially donated, by Waiward Steel Fabricators, Edmonton, AB.
Important contributions to the success of this project by the staff and graduate students in the Department of Civil and Environmental Engineering at the University of Alberta and the I.F.
Morrison Structural Engineering Laboratory are gratefully acknowledged. ABSTRACT A rehabilitation and repair technique with external steel collars was investigated for reinforced concrete short columns through experiment and finite element analysis. Ten cantilever short columns, including two control columns without steel collars and eight rehabilitated columns confined externally by steel collars, have been constructed and tested under combined axial and lateral loading.
Parameters considered in the experimental program include collar spacing, collar stiffness, longitudinal reinforcement ratio, axial compression index, pretension of collar bolts, and shear span-to-depth ratio. One control column was tested to failure and then repaired to study the feasibility of using external steel collars on previously damaged columns.
The experimental results have shown excellent improvements in the ductility, strength, and energy dissipation capacity of the columns due to the presence of the col...





Related documents