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KSCE Journal of Civil Engineering

, Volume 23, Issue 12, pp 5183–5193 | Cite as

Seismic Behavior of Ultra-High Performance Concrete Short Columns Confined with High-Strength Reinforcement

  • Shaofeng HeEmail author
  • Zongcai Deng
Structural Engineering
  • 9 Downloads

Abstract

In order to further study the performance of ultra-high performance concrete (UHPC) structures under seismic conditions, three UHPC short columns confined with high-strength reinforcement were tested alongside one UHPC short column confined with normal-strength reinforcement and one reinforced UHPC short column confined with carbon fiber reinforced polymer (CFRP). The results show that high-strength reinforcement improved the ductility and energy-absorbing ability of the UHPC columns. In addition, high-strength reinforcement only made a marginal difference to stiffness degeneration but did contribute to the specimen’s initial stiffness; both high axial loads and small shear span ratios accelerated stiffness degeneration.

Keywords

ultra-high performance concrete high-strength reinforcement short column seismic behavior 

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Notes

Acknowledgments

The authors would like to acknowledge the financial support provided by the Beijing Nature Science Foundation-Municipal Education Committee joint funding project (grant number KZ201810005008), and the National Natural Science Foundationof China (grant number 51578021).

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Copyright information

© Korean Society of Civil Engineers 2019

Authors and Affiliations

  1. 1.Key Laboratory of Urban Security and Disaster EngineeringBeijing University of TechnologyBeijingChina

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