An investigation on the behavior of a new connection for precast structures under reverse cyclic loading

Cong Lu, Bingqing Dong*, Jinlong Pan, Qifeng Shan, Asad Hanif, Wanyun Yin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

This paper aims to develop a new precast beam-column connection with U-shaped bars and ECC materials, which eliminates the need for formworks, welding and bolting. In this paper, an experimental study of five precast and two monolithic connections, including exterior and interior connections under reverse cyclic loading, will be carried out. All specimens were evaluated by their failure mode, hysteresis characteristics, stiffness degradation, ductility and energy dissipation under reverse cyclic loading. The proposed connection using high strength concrete exhibited more satisfactory seismic behavior than the cast-in-place construction in terms of hysteretic behavior, stiffness degradation and energy dissipation, while their load-carrying capacity and ductility were slightly lower. When ECC material is incorporated, these precast connections showed improved load-carrying capacity and ultimate displacement compared with the precast connections using concrete. Their seismic performance is comparable to (even better at certain aspects) the conventional cast-in-place connections and is therefore recommended for the applications in the high seismic region.

Original languageEnglish
Pages (from-to)131-140
Number of pages10
JournalEngineering Structures
Volume169
DOIs
StatePublished - 15 Aug 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • Cyclic loading
  • Engineered Cementitious Composite (ECC)
  • Precast connection
  • U-shaped bars

ASJC Scopus subject areas

  • Civil and Structural Engineering

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