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Shrinkage stress analysis of concrete slab in multistorey building considering variation of restraint and stress relaxation due to creep
Author(s) -
Kim Hansoo,
Cho Sukhee
Publication year - 2005
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.258
Subject(s) - shrinkage , creep , slab , stress relaxation , stress (linguistics) , structural engineering , materials science , relaxation (psychology) , composite material , engineering , psychology , social psychology , linguistics , philosophy
The purpose of this paper is to propose a practical shrinkage stress analysis method of concrete slab in a multistorey building considering creep relaxation and construction sequence for the quantitative evaluation of shrinkage effect. Shrinkage strains are converted into initial strain loads or equivalent temperature loads. Axial stresses due to shrinkage are calculated using elastic analysis, which is the summation of step‐by‐step analysis results according to the construction sequence. Stress relaxation of creep is considered by multiplying the relaxation coefficient to the calculated elastic shrinkage stresses. An example of 10‐storey building is presented to explain the analysis procedure and applicability. Copyright © 2005 John Wiley & Sons, Ltd.