Experimental evaluation on the prediction of long-term loss of prestressed concrete

Ji Hun Choi, Seung Jai Choi, Tae Kyun Kim, Tae Hee Lee, Jang Ho Jay Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Recently, the construction trend is to build larger and slender structures all over the world. In order to construct the required structures, prestressed concrete (PSC) construction method is an only viable option, which requires an evaluation of prestress tendons. Recently, many researches were performed on the evaluation for PS tendons. Implementation of the PS tendons is done to precisely understand prestress loss along the full length of PS tendons. Therefore, in this paper, long-term loss in normal and high strength tendons were measured experimentally. To evaluate the long-term loss of prestressed concrete members, long-term loss tests were carried out on 18 m PSC girder specimens. PS tendons used in the specimens were two types of steel strand. SWPC 7B (Type B) is a strand with tensile strength of 1,860 MPa, while SWPC 7D (Type D) is a strand with tensile strength of 2,400 MPa. The PS loss data were measured of two years. The experimental results can be used as basic research references to formulate constitutive models of PS tendons, which can be used to calibrate simulation tools of full-scale PSC structural behavior.

Original languageEnglish
Pages (from-to)419-428
Number of pages10
JournalJournal of the Korea Concrete Institute
Issue number5
Publication statusPublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 by Korea Concrete Institute.

All Science Journal Classification (ASJC) codes

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


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