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A platform for research: civil engineering, architecture and urbanism
Absorbers Impact on the Reliability of Bridge Abutments
https://orcid.org/http://orcid.org/0000-0002-1967-0384
https://orcid.org/http://orcid.org/0000-0002-4815-1719
One way to reduce vibrations of a bridge abutment is to add an absorber tuned to the structure. It is important to properly design an absorber, which the most common design is a sprung mass because of its simple structure. A new parameter optimization criterion was proposed - consisting in minimizing the probability of the maximum vibrations of the structure exceeding a certain permissible value of displacements. This criterion means maximizing the reliability of the vibrating structure with regard to the maximum vibration amplitudes. The authors analyzes when vehicles are passing by a bridge abutment in two situations: there is a lot of traffic and the movement is small. In both the cases random vibrations of the bridge abutment are emulated by a filtered Poisson process. When traffic is so small that excitations can be considered separately, in the other way – a series of impulses. Numerical solutions and selection of optimum absorber parameters are presented for both situations.
Absorbers Impact on the Reliability of Bridge Abutments
https://orcid.org/http://orcid.org/0000-0002-1967-0384
https://orcid.org/http://orcid.org/0000-0002-4815-1719
One way to reduce vibrations of a bridge abutment is to add an absorber tuned to the structure. It is important to properly design an absorber, which the most common design is a sprung mass because of its simple structure. A new parameter optimization criterion was proposed - consisting in minimizing the probability of the maximum vibrations of the structure exceeding a certain permissible value of displacements. This criterion means maximizing the reliability of the vibrating structure with regard to the maximum vibration amplitudes. The authors analyzes when vehicles are passing by a bridge abutment in two situations: there is a lot of traffic and the movement is small. In both the cases random vibrations of the bridge abutment are emulated by a filtered Poisson process. When traffic is so small that excitations can be considered separately, in the other way – a series of impulses. Numerical solutions and selection of optimum absorber parameters are presented for both situations.
Absorbers Impact on the Reliability of Bridge Abutments
https://orcid.org/http://orcid.org/0000-0002-1967-0384
https://orcid.org/http://orcid.org/0000-0002-4815-1719
One way to reduce vibrations of a bridge abutment is to add an absorber tuned to the structure. It is important to properly design an absorber, which the most common design is a sprung mass because of its simple structure. A new parameter optimization criterion was proposed - consisting in minimizing the probability of the maximum vibrations of the structure exceeding a certain permissible value of displacements. This criterion means maximizing the reliability of the vibrating structure with regard to the maximum vibration amplitudes. The authors analyzes when vehicles are passing by a bridge abutment in two situations: there is a lot of traffic and the movement is small. In both the cases random vibrations of the bridge abutment are emulated by a filtered Poisson process. When traffic is so small that excitations can be considered separately, in the other way – a series of impulses. Numerical solutions and selection of optimum absorber parameters are presented for both situations.
Absorbers Impact on the Reliability of Bridge Abutments
Lecture Notes in Civil Engineering
Akimov, Pavel (editor) / Vatin, Nikolai (editor) / Podwórna, Monika (author) / Grosel, Jacek (author)
International Conference on Russian-Polish-Slovak Seminar Theoretical Foundation of Civil Engineering ; 2021 ; Moscow, Russia
XXX Russian-Polish-Slovak Seminar Theoretical Foundation of Civil Engineering (RSP 2021) ; Chapter: 44 ; 374-384
2021-09-15
11 pages
Article/Chapter (Book)
Electronic Resource
English
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