Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete
Joint Authors
Zhang, Guoxin
Xin, Jianda
Wang, Zhenhong
Wu, Zhe
Source
Journal of Engineering Research
Issue
Vol. 8, Issue 2 (30 Jun. 2020), pp.24-43, 20 p.
Publisher
Kuwait University Academic Publication Council
Publication Date
2020-06-30
Country of Publication
Kuwait
No. of Pages
20
Main Subjects
Abstract EN
This paper presents a numerical analysis of concrete restraint tests conducted on a temperature stress testing machine (TSTM).
two numerical methods, namely, ID method using matlab software and 3D method using midas software, were adopted.
factors, such as cooling rate and external restraint degree, were numerically analyzed and compared with experimental results.
results show that numerical analyses of concrete restrained stresses were comparable with those of TSTM tests.
the cracking potential of concrete decreased with higher cooling rate at early age, and this benefit became more considerable for concrete structures under higher external restraint conditions.
a simplified relationship between the external restraint degree and the allowed temperature difference (the difference between maximum temperature and cracking temperature of concrete) is developed.
furthermore, it is found that the anti-cracking capability of concrete under different restraint conditions can be overestimated up to 56% when ignoring creep effect on values of restraint degree.
American Psychological Association (APA)
Xin, Jianda& Zhang, Guoxin& Wang, Zhenhong& Wu, Zhe. 2020. Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete. Journal of Engineering Research،Vol. 8, no. 2, pp.24-43.
https://search.emarefa.net/detail/BIM-1494939
Modern Language Association (MLA)
Zhang, Guoxin…[et al.]. Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete. Journal of Engineering Research Vol. 8, no. 2 (Jun. 2020), pp.24-43.
https://search.emarefa.net/detail/BIM-1494939
American Medical Association (AMA)
Xin, Jianda& Zhang, Guoxin& Wang, Zhenhong& Wu, Zhe. Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete. Journal of Engineering Research. 2020. Vol. 8, no. 2, pp.24-43.
https://search.emarefa.net/detail/BIM-1494939
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 42-43
Record ID
BIM-1494939