Tension stiffening behavior of strain-hardening cement composite (SHCC) ties in monotonic and cyclic loadings

Hyun Do Yun, Hae Jun Yang, Su Won Kang, Soo Yeon Seo, Kang Su Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Strain-hardening cement composite (SHCC) is a superior class of fiber reinforced cement composites (FRCCs) which exhibit multiple cracks and strain-hardening behavior under direct tension. This study investigated the tensile behavior of reinforced SHCC ties in monotonic and cyclic tension. The effect of loading scheme, tie cover-to-bar diameter ratio (c/d b) and cement composites' ductility were the principal variable considered. Each specimen had a square cross-section dimension and length of 500 mm. A 16 mm diameter deformed bar was embedded centrally to give reinforcement ratio of 6.5 percent. The strain-hardening and multiple cracking characteristic of SHCC improves tension stiffening in reinforced cement composite because SHCC are able to carry tensile forces at the cracks. For tension ties Type A with smaller c/db, pre-and post-cracking response leans towards the response of bare bar. As the c/d b decreases, reduction in tension stiffening takes place. Cyclic loading did not have a significant effect on either tension stiffening or cracking behavior for the concrete tie tested.

Original languageEnglish
Pages (from-to)425-430
Number of pages6
JournalAdvanced Science Letters
Volume14
Issue number1
DOIs
StatePublished - Jul 2012

Keywords

  • Crack
  • Strain-hardening cement composite (SHCC)
  • Tension stiffening
  • Tension ties

Fingerprint

Dive into the research topics of 'Tension stiffening behavior of strain-hardening cement composite (SHCC) ties in monotonic and cyclic loadings'. Together they form a unique fingerprint.

Cite this