Improved estimation of long-term relaxation function of aging concrete from its compliance function

Z. P. Bažant, M. H. Hubler, M. Jirásek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The age-adjusted effective modulus method (AAEM) is a standard ACI and CEB-fib for simplified estimates of the creep response of concrete structures. The AAEM requires the user to supply the relaxation function, R(t, t'), of the concrete to be used. This function may be obtained through numerical methods, but more easily from a simple closed-form formula. Such a formula was first presented by Bažant and Kim in 1979, but was improved in 2012 by Bažant, Hubler, and Jirásek. This paper summarizes and discusses this recent improvement to the closed-form approximation of R(t, t'), which gives a more accurate representation of the multi-decade creep.

Original languageEnglish (US)
Title of host publicationMechanics and Physics of Creep, Shrinkage, and Durability of Conrete
Subtitle of host publicationA Tribute to Zdenek P. Bazant - Proceedings of the 9th Int. Conf. on Creep, Shrinkage, and Durability Mechanics, CONCREEP 2013
PublisherAmerican Society of Civil Engineers (ASCE)
Pages437-442
Number of pages6
ISBN (Print)9780784413111
DOIs
StatePublished - 2013
Event9th International Conference on Creep, Shrinkage, and Durability Mechanics: A Tribute to Zdenek P. Bazant, CONCREEP 2013 - Cambridge, MA, United States
Duration: Sep 22 2013Sep 25 2013

Publication series

NameMechanics and Physics of Creep, Shrinkage, and Durability of Conrete: A Tribute to Zdenek P. Bazant - Proceedings of the 9th Int. Conf. on Creep, Shrinkage, and Durability Mechanics, CONCREEP 2013

Other

Other9th International Conference on Creep, Shrinkage, and Durability Mechanics: A Tribute to Zdenek P. Bazant, CONCREEP 2013
CountryUnited States
CityCambridge, MA
Period9/22/139/25/13

ASJC Scopus subject areas

  • Mechanics of Materials
  • Building and Construction

Fingerprint Dive into the research topics of 'Improved estimation of long-term relaxation function of aging concrete from its compliance function'. Together they form a unique fingerprint.

Cite this