Effect of rebar strength in Y-type perfobond rib shear connectors

S. H. Kim, O. Han, K. S. Kim, S. J. Kim, J. Y. Shin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rebars improve composite structure constructability and efficiency. Transverse rebars in the Y-type perfobond rib shear connector influence both shear strength and ductility. Performance characteristics of Y-type perfobond rib shear connectors with various transverse rebar strengths and diameters need to be identified. Push-out tests were done with Y-type perfobond rib shear connectors with various transverse rebars. Strain gauges monitored the strain histories with both push force and relative slip between the perfobond rib and composite concrete block. The concrete block surface was photographed to confirm the surface crack formation time and pattern. Strain histories indicate that surface cracks initiated after the nominal yield strains of the rebars were exceeded. Shear resistance can be increased and the surface crack formation delayed by using high-strength transverse rebars. However, a balanced design is needed to achieve shear resistance and ductility. Excessive strength transverse rebars may cause early damage on, and failure of, the Y-ribs.

Original languageEnglish
Title of host publicationMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
EditorsNigel Powers, Dan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani
PublisherCRC Press/Balkema
Pages381-385
Number of pages5
ISBN (Print)9781138730458
Publication statusPublished - 2018 Jan 1
Event9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018 - Melbourne, Australia
Duration: 2018 Jul 92018 Jul 13

Publication series

NameMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Conference

Conference9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
CountryAustralia
CityMelbourne
Period18/7/918/7/13

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Kim, S. H., Han, O., Kim, K. S., Kim, S. J., & Shin, J. Y. (2018). Effect of rebar strength in Y-type perfobond rib shear connectors. In N. Powers, D. M. Frangopol, R. Al-Mahaidi, & C. Caprani (Eds.), Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018 (pp. 381-385). (Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018). CRC Press/Balkema.