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A platform for research: civil engineering, architecture and urbanism
Durability and Assessment of Early Post-tensioned Bridges
https://orcid.org/http://orcid.org/0000-0001-8136-0777
https://orcid.org/http://orcid.org/0000-0001-6244-4780
https://orcid.org/http://orcid.org/0000-0003-4472-4185
https://orcid.org/http://orcid.org/0000-0001-6314-9687
Post-tensioned technology has been widely applied to bridges in the early 1960s in former Czechoslovakia. Nowadays, the considerable effect of aggressive environment, environmental conditions, and inadequate maintenance lead to the poor condition of early post-tensioned bridges. Tendons and anchorages are failing by corrosion and with excessive traffic load, some bridges are close to partial or total collapse. Inspection of several early post-tensioned concrete bridges indicates a similar problem. Understanding the processes leading to the deterioration of materials and bridge components, information about the residual prestressing force is the key how to predict a potential risk and remaining service life of post-tensioned concrete bridges. The various methods for bridge assessment have been practiced worldwide, providing valuable information in this field. Generally, visual inspection, destructive or non-destructive testing, probing, and structural health monitoring are preferable. The paper summarizes an overview of selected assessment methods applied to some early-built post-tensioned concrete bridges reaching their service life limit. Data should help the administrators to decide about the future of problematic structures in terms of strengthening or inevitable replacement by the new one.
Durability and Assessment of Early Post-tensioned Bridges
https://orcid.org/http://orcid.org/0000-0001-8136-0777
https://orcid.org/http://orcid.org/0000-0001-6244-4780
https://orcid.org/http://orcid.org/0000-0003-4472-4185
https://orcid.org/http://orcid.org/0000-0001-6314-9687
Post-tensioned technology has been widely applied to bridges in the early 1960s in former Czechoslovakia. Nowadays, the considerable effect of aggressive environment, environmental conditions, and inadequate maintenance lead to the poor condition of early post-tensioned bridges. Tendons and anchorages are failing by corrosion and with excessive traffic load, some bridges are close to partial or total collapse. Inspection of several early post-tensioned concrete bridges indicates a similar problem. Understanding the processes leading to the deterioration of materials and bridge components, information about the residual prestressing force is the key how to predict a potential risk and remaining service life of post-tensioned concrete bridges. The various methods for bridge assessment have been practiced worldwide, providing valuable information in this field. Generally, visual inspection, destructive or non-destructive testing, probing, and structural health monitoring are preferable. The paper summarizes an overview of selected assessment methods applied to some early-built post-tensioned concrete bridges reaching their service life limit. Data should help the administrators to decide about the future of problematic structures in terms of strengthening or inevitable replacement by the new one.
Durability and Assessment of Early Post-tensioned Bridges
https://orcid.org/http://orcid.org/0000-0001-8136-0777
https://orcid.org/http://orcid.org/0000-0001-6244-4780
https://orcid.org/http://orcid.org/0000-0003-4472-4185
https://orcid.org/http://orcid.org/0000-0001-6314-9687
Post-tensioned technology has been widely applied to bridges in the early 1960s in former Czechoslovakia. Nowadays, the considerable effect of aggressive environment, environmental conditions, and inadequate maintenance lead to the poor condition of early post-tensioned bridges. Tendons and anchorages are failing by corrosion and with excessive traffic load, some bridges are close to partial or total collapse. Inspection of several early post-tensioned concrete bridges indicates a similar problem. Understanding the processes leading to the deterioration of materials and bridge components, information about the residual prestressing force is the key how to predict a potential risk and remaining service life of post-tensioned concrete bridges. The various methods for bridge assessment have been practiced worldwide, providing valuable information in this field. Generally, visual inspection, destructive or non-destructive testing, probing, and structural health monitoring are preferable. The paper summarizes an overview of selected assessment methods applied to some early-built post-tensioned concrete bridges reaching their service life limit. Data should help the administrators to decide about the future of problematic structures in terms of strengthening or inevitable replacement by the new one.
Durability and Assessment of Early Post-tensioned Bridges
Lecture Notes in Civil Engineering
Zembaty, Zbigniew (editor) / Perkowski, Zbigniew (editor) / Beben, Damian (editor) / Massimino, Maria Rossella (editor) / Lavan, Oren (editor) / Bujňáková, Petra (author) / Kraľovanec, Jakub (author) / Moravčík, Martin (author) / Bahleda, František (author)
International Scientific Conference Environmental Challenges in Civil Engineering ; 2022 ; Opole, Poland
2023-02-26
9 pages
Article/Chapter (Book)
Electronic Resource
English
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