Temperature distributions in concrete box girders due to heat of concrete hydration
MEI Zhu1, JIA Yan-min1, LI Cheng-yu2
1.Northeast Forestry University,Harbin 150040,China;2.University of Colorado Denver,Denver CO 80237,USA
Abstract:
Based on heat transfer theory,a two-dimensional complex exponential function was used to compute heat of concrete hydration.A concrete box girder consisting of a single box with two cells used on Harbin Songpu Bridge was measured on site.The two coefficients in the complex exponential function were determined to best fit the field measured data.ABAQUS program was used to simulate the heat transfer and determine the temperature distribution in the concrete box girders during concrete setting.The calculated temperature distribution in the box girders were compared with the field measured data and good agreement was observed.The temperature distribution and gradient in the entire box section,webs and bottom slab were analyzed using the measured and calculated results during the course of concrete hydration.
Key words: heat of hydration temperature distribution box girder bridge concrete hydration
DOI：10.11916/j.issn.1005-9113.2011.01.009
Clc Number:U448.213
Fund:
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Temperature distributions in concrete box girders due to heat of concrete hydration
本站小编 哈尔滨工业大学/2019-10-23
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