Applying carbon fiber in building structures.
Litvinov, Artem (2010)
Litvinov, Artem
Saimaan ammattikorkeakoulu
2010
Creative Commons Attribution-NonCommercial 1.0 Finland
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2010082612786
https://urn.fi/URN:NBN:fi:amk-2010082612786
Tiivistelmä
The purpose of the research was to study production technologies, properties of carbon fibers, methods of construction, using this material, compare carbon fiber and structures, using carbon fiber with traditional materials and structures and find out reasons for application in construction. In addition, my task was to create calculating tool in Excel to estimate effect of carbon fiber strengthening to the structure.
The study was commissioned by Juri Kvach, FM Stroiprojekt.
The calculating tool in Excel represents a program that calculates the existing cross-section of the beam, finds its ultimate bending moment, and compares this moment with existing or projecting moment. If moment is not enough, it is possible to choose strengthening material, its size and number of layers, and calculate bending moment of improved structure.
Calculations of the strengthened with carbon fiber beams shows increasing of ultimate bending moment up to 90% from initial moment of unstrengthened low-reinforced beams. Strengthening of high-reinforced beams does not give such effect because of changing the failure model to fragile, which is not allowed for concrete structures.
The study was commissioned by Juri Kvach, FM Stroiprojekt.
The calculating tool in Excel represents a program that calculates the existing cross-section of the beam, finds its ultimate bending moment, and compares this moment with existing or projecting moment. If moment is not enough, it is possible to choose strengthening material, its size and number of layers, and calculate bending moment of improved structure.
Calculations of the strengthened with carbon fiber beams shows increasing of ultimate bending moment up to 90% from initial moment of unstrengthened low-reinforced beams. Strengthening of high-reinforced beams does not give such effect because of changing the failure model to fragile, which is not allowed for concrete structures.