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发表时间：2016-01-01

发表刊物：水利与建筑工程学报

卷号：14

期号：4

页面范围：177-182

ISSN号：1672-1144

摘要：User subroutine USERMAT .F and UldFin .F of large commercial software ANSYS finite element were improved in this research .An elastic creep constitutive model was developed ,temperature field and creep stress field calculations of mass concrete was acquired .Specific numerical examples were conducted to verify its accuracy .Finally ,aimed at the problem of winter insulation of mass concrete in cold region ,by means of equivalent thermal coefficient method ,appropri-ate research had been carried out to provide some reference for the design and construction of mass concrete .

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