Seismic performance and evaluation of fly-ash concrete columns - towards resilient and sustainable concrete structures

Sun Yuping, Koyama Tomoyuki, Takeuchi Takashi

Research output: Contribution to journalConference article

Abstract

Six concrete columns of about 1/3 scale were fabricated and tested under reversed cyclical lateral loading while under constant axial compression to investigate seismic performance of fly-ash concrete columns. All the test columns were made of concrete with water-to-cement ratio of 65%, and the content of fly-ash in per cubic meter of concrete was 244kg. Among three experimental parameters, the note-worthiest one is the grade of longitudinal rebar. The common normal-strength deformed rebars were placed in three specimens, while the ultrahigh-strength rebars with spiral grooves in their surface were used in the other threes, which was aimed at developing a resilient concrete structure. The test results have indicated that utilization of fly-ash and ultra-high-strength rebar is an easy and effective way to materialize the resilient and sustainable concrete structures. An analytical method was also introduced to evaluate the seismic behavior of the columns with ultra-high-strength rebars.

Original languageEnglish
Article numbere251
JournalSustainable Construction Materials and Technologies
Volume2013-August
Publication statusPublished - Jan 1 2013
Event3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013 - Kyoto, Japan
Duration: Aug 18 2013Aug 21 2013

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Materials Science(all)

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