|Table of Contents|

Time-dependent analysis and evaluation model of hydration heat temperature fields for concrete box girder layer casting

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年02期
Page:
65-69
Research Field:
Publishing date:

Info

Title:
Time-dependent analysis and evaluation model of hydration heat temperature fields for concrete box girder layer casting
Author(s):
WANG Cui-juan;  HE Shuan-hai;  ZHANG Gang
Key Laboratory for Old Bridge Detection and Reinforcement Technique of the Ministry of Transportation, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
bridge engineering;  concrete box girder;  hydration heat;  temperature control model
PACS:
U448
DOI:
-
Abstract:
Aimed at temperature fields distribution problem of concrete box girders on high piers, based on the minium goal principal, the hydration evaluation model was built, the ANSYS software was adopted to analyze the hydration heat temperature field of concrete pier on mass under the mormal casting and three layers casting conditions, the time-dependent curve of the temperature peak value and the temperature difference peak value were obtained, the comparison was made to the two casting ways, and their optimization performance was evaluated. The results show that the three layers casting way can effectively improve the temperature peak value, but has no obvious influence on temperature difference peak value, the evaluation model can correctly reflect the rationality of casting way, and can give a good judgment for the difference of the temperature peak value and the temperature difference peak value. 3 tabs, 6 figs, 7 refs.

References:

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Last Update: 2012-04-30