A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
https://orcid.org/0000-0002-4656-259X
Abstract This study evaluated the structural performance of Y-type perfobond rib shear connectors under cyclic loading; the plastic slip, stiffness ratio, and residual strength were also measured. Cyclic loading tests were conducted on each specimen for 650,000cycles, and the specimen with the maximum plastic slip was subjected to 1300,000cycles to investigate the long-term behavior. After the cyclic loading test, push-out tests were conducted to evaluate the residual strength. Under repeated loading, the Y-type perfobond rib shear connectors experienced a slightly larger permanent plastic slip than the puzzle-shaped dowels and stud shear connectors in the early stage. However, this maintained the slip level between the other shear connections after 500,000cycles. The residual strength and stiffness ratio of the Y-type perfobond rib shear connectors remained unchanged even if the system experienced an initial plastic slip. To evaluate the applicability of the Y-type perfobond rib shear connector to highway bridges, the structural performances of plate and steel box girders using these connectors were analyzed numerically. The numerical simulation results for the bridge examples showed that the additional deflections and bending stresses due to the early-stage plastic slip were negligible.
Highlights Y-type perfobond rib shear connectors were subjected to cyclic loading. Their plastic slip, stiffness ratio, and residual strength were measured. The results were used to evaluate the connectors' applicability to highway bridges.
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
https://orcid.org/0000-0002-4656-259X
Abstract This study evaluated the structural performance of Y-type perfobond rib shear connectors under cyclic loading; the plastic slip, stiffness ratio, and residual strength were also measured. Cyclic loading tests were conducted on each specimen for 650,000cycles, and the specimen with the maximum plastic slip was subjected to 1300,000cycles to investigate the long-term behavior. After the cyclic loading test, push-out tests were conducted to evaluate the residual strength. Under repeated loading, the Y-type perfobond rib shear connectors experienced a slightly larger permanent plastic slip than the puzzle-shaped dowels and stud shear connectors in the early stage. However, this maintained the slip level between the other shear connections after 500,000cycles. The residual strength and stiffness ratio of the Y-type perfobond rib shear connectors remained unchanged even if the system experienced an initial plastic slip. To evaluate the applicability of the Y-type perfobond rib shear connector to highway bridges, the structural performances of plate and steel box girders using these connectors were analyzed numerically. The numerical simulation results for the bridge examples showed that the additional deflections and bending stresses due to the early-stage plastic slip were negligible.
Highlights Y-type perfobond rib shear connectors were subjected to cyclic loading. Their plastic slip, stiffness ratio, and residual strength were measured. The results were used to evaluate the connectors' applicability to highway bridges.
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
https://orcid.org/0000-0002-4656-259X
Abstract This study evaluated the structural performance of Y-type perfobond rib shear connectors under cyclic loading; the plastic slip, stiffness ratio, and residual strength were also measured. Cyclic loading tests were conducted on each specimen for 650,000cycles, and the specimen with the maximum plastic slip was subjected to 1300,000cycles to investigate the long-term behavior. After the cyclic loading test, push-out tests were conducted to evaluate the residual strength. Under repeated loading, the Y-type perfobond rib shear connectors experienced a slightly larger permanent plastic slip than the puzzle-shaped dowels and stud shear connectors in the early stage. However, this maintained the slip level between the other shear connections after 500,000cycles. The residual strength and stiffness ratio of the Y-type perfobond rib shear connectors remained unchanged even if the system experienced an initial plastic slip. To evaluate the applicability of the Y-type perfobond rib shear connector to highway bridges, the structural performances of plate and steel box girders using these connectors were analyzed numerically. The numerical simulation results for the bridge examples showed that the additional deflections and bending stresses due to the early-stage plastic slip were negligible.
Highlights Y-type perfobond rib shear connectors were subjected to cyclic loading. Their plastic slip, stiffness ratio, and residual strength were measured. The results were used to evaluate the connectors' applicability to highway bridges.
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
Kim, Sang-Hyo (author) / Kim, Kun-Soo (author) / Park, Sejun (author) / Ahn, Jin-Hee (author) / Lee, Min-Kyu (author)
Journal of Constructional Steel Research ; 122 ; 445-454
2016-04-13
10 pages
Article (Journal)
Electronic Resource
English
CL , clothoidal , FEA , finite element analysis , KHBM , Korea Highway Bridge Manual , KHBS , Korea Highway Bridge Specifications , LVDT , linear variable differential transformer , MCL , modified clothoidal , PreCoBeam , prefabricated composite beam , PZ , puzzle , SA , fin , UTM , universal testing machine , Y-type perfobond rib shear connector , Residual strength , Plastic slip , Stiffness ratio , Cyclic loading , Highway bridge
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
| British Library Online Contents | 2016
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
| Online Contents | 2016
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
| British Library Online Contents | 2016
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
| British Library Online Contents | 2016
Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges
| British Library Online Contents | 2016