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Theoretical study of UHPCC composite column behaviors under axial compression

  • Xiang Guo Wu*
  • , Ruofei Zou
  • , Xinyu Zhao
  • , Qun Yu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

To improve the durability and service life of reinforced concrete column such as bridge piers, an advanced composite column made of Ultra High Performance Cementitious Composites (UHPCC) permanent form is proposed. Based on elasticity plasticity theory, axial compression behavior of the composite column was studied theoretically. The first circumferential cracking load and ultimate limit loading capacity are derived for the composite column. Short composite column compression tests and numerical simulations using FEM method were carried out to justify the theoretical formula. The effects of UHPCC tube thickness on the axial compression behavior were studied. Using the established theoretical model and numerical simulation, the large dimension composite columns are calculated and analyzed with different UHPCC tube thickness. These studies may provide a reference for advanced composite column design and application.

Original languageEnglish
Pages (from-to)931-951
Number of pages21
JournalStructural Engineering and Mechanics
Volume55
Issue number5
DOIs
StatePublished - 10 Sep 2015

Keywords

  • Composite column
  • Cracking load
  • Short column compression test
  • Ultimate limit loading capacity
  • Ultra high performance cementitious composites

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