Analyzing the effectiveness of the turnbuckle exterior post tensioning as a structural retrofitting method using SAP2000
College
Gokongwei College of Engineering
Department/Unit
Civil Engineering
Document Type
Conference Proceeding
Source Title
DLSU Research Congress 2015
Publication Date
3-2015
Abstract
Nowadays the problem of aging and deterioration of reinforced concrete buildings are eminent and due to excessive loading, the flexural performance and serviceability of structures are affected. The Turnbuckle Exterior Post Tensioning (T-EPT) was developed as a retrofitting method wherein it was proven experimentally that it can be able to improve the serviceability and load carrying capacity of beams. The effectiveness of the T-EPT was further analyzed using SAP2000, and by utilizing the results from the experimental testing; cracking and degradation was considered by adjusting the stiffness modification factor, specifically, the moment of inertia of the beam section. A computer modeling method was developed to simulate the application of the T-EPT to full scale beam sections to determine its effectiveness with different cases. The behavior of the beams as observed from the experimental phase was attributed to the computer model to accurately simulate its behavior. Different T-EPT configurations were modeled and from there, the most efficient design that can be applied to structures was determined. Overall the T-EPT was effective in improving the serviceability and load carrying capacity of reinforced concrete beams.
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Recommended Citation
Lejano, B. A., Toral, K. P., Grimares, D., Peñamante, M., & Roxas, J. (2015). Analyzing the effectiveness of the turnbuckle exterior post tensioning as a structural retrofitting method using SAP2000. DLSU Research Congress 2015 Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/15119
Disciplines
Civil Engineering
Keywords
Buildings—Retrofitting; Concrete beams
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