CONCRETE LIBRARY OF JSCE NO. 11. JUNE 1988
EVALUATION OF THERMAL CRACK OCCURRENCE IN MASSIVE
CONCRETE STRUCTURES
(Reprint from Transaction of JSCE,
Katsuhiko KIMURA
Vol.6, No.378,
1987)
Sadamu ONO
SYNOPSIS
Authors propose a probabilistic approach for the evaluation of thermal crack
occurrences, which introduces thermal crack index, random variable defined in
terms of the ratio of the concrete tensile strength to the thermally induced
tensile stresses due to external restraints.
Furthermore,
this report discusses some factors affecting the thermal crack
occurrence probability. It becomes clean that the degree of external restraint,
tensile strength and calculation methods of thermal crack index are the most
contributing factors.
Keywords: mass concrete, thermal crack, external restraint, thermal crack index.
K. Kimura is a chief engineer at Civil Engineering Division of Shimizu
Corporation, Tokyo Japan. He received his Master of Engineering Degree from
Nagoya Institute of Technology in 1975. He is a member of JSCE and JCI.
S.
Ono is a chief engineer at Civil Engineering Division of Shimizu
Corporation, Tokyo Japan. He received his Doctor of Engineering Degree from
Hokkaido
University
in
1985.
He is a member
of
JSCE
and
JCI.