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<p>Three equivalent exterior precast concrete beam-column (PCBC) connections have been investigated in this study in orderto analyze the effect of steel fiber reinforced concrete (SFRC) as cast-in-place (CIP) on the seismic performance of the PCBC connection. The connection was designed as a ductile connection for a moment-resisting frame and consists of a precast U-beam, precast column with corbel, interlocking bars, and CIP-concrete to connect the precast beam to precast column. The volume fractions of steel fiber incorporated within the CIP-concrete were 0%, 0.5% and 1%. A quasi-static load was applied vertically to the beam tip of the PCBC specimen. The results showed that the steel fibers contained within the CIP-concrete provided 2% increase of the maximum load, 17.7% increase of the energy dissipation, and increase in the joint stiffness of the PCBC connection. The steel fibers delayed the onset of cracking and slowed down the crack propagation, resulting in shorter cracks in the joint core of PCBC specimen, which correlates well with the deflection-hardening characteristic found from the modulus of rupture test.</p>
</abstract>

Three equivalent exterior precast concrete beam-column (PCBC) connections have been investigated in this study in orderto analyze the effect of steel fiber reinforced concrete (SFRC) as cast-in-place (CIP) on the seismic performance of the PCBC connection. The connection was designed as a ductile connection for a moment-resisting frame and consists of a precast U-beam, precast column with corbel, interlocking bars, and CIP-concrete to connect the precast beam to precast column. The volume fractions of steel fiber incorporated within the CIP-concrete were 0%, 0.5% and 1%. A quasi-static load was applied vertically to the beam tip of the PCBC specimen. The results showed that the steel fibers contained within the CIP-concrete provided 2% increase of the maximum load, 17.7% increase of the energy dissipation, and increase in the joint stiffness of the PCBC connection. The steel fibers delayed the onset of cracking and slowed down the crack propagation, resulting in shorter cracks in the joint core of PCBC specimen, which correlates well with the deflection-hardening characteristic found from the modulus of rupture test.

Cyclic behavior of precast concrete beam-column connection using steel fiber reinforced cast-in-place concrete

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Three equivalent exterior precast concrete beam-column (PCBC) connections have been investigated in this study in orderto analyze the effect of steel fiber...

Cyclic behavior of precast concrete beam-column connection using steel fiber reinforced cast-in-place concrete

Published Online: Nov 10, 2021

Page range: 240 - 251

Received: Apr 07, 2021

Accepted: Sep 13, 2021

DOI: https://doi.org/10.2478/msp-2021-0021

Keywords
precast concrete, beam-column, connection, steel fiber, cast-in-place, energy dissipation

© 2021 Vera Agustriana Noorhidana et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Cyclic behavior of precast concrete beam-column connection using steel fiber reinforced cast-in-place concrete

Published Online: Nov 10, 2021

Page range: 240 - 251

Received: Apr 07, 2021

Accepted: Sep 13, 2021

DOI: https://doi.org/10.2478/msp-2021-0021

Keywordsprecast concrete, beam-column, connection, steel fiber, cast-in-place, energy dissipation

© 2021 Vera Agustriana Noorhidana et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
precast concrete, beam-column, connection, steel fiber, cast-in-place, energy dissipation