基于ANSYS的寒冷地区大体积混凝土越冬保温研究  

Winter Insulation of the Mass Concrete in Cold Area Based on ANSYS

作　　者：张豪[1] 杜志达[1] 

机构地区：[1]大连理工大学建设工程学部,辽宁大连116024

出　　处：《水利与建筑工程学报》2016年第4期177-182,共6页Journal of Water Resources and Architectural Engineering

摘　　要：利用大型通用有限元商业软件ANSYS提供的用户子程序USERMAT.F和Uld Fin.F,对ANSYS进行了二次开发,建立了弹性徐变本构模型,实现了大体积混凝土温度场和徐变应力场的计算,并通过具体算例验证其正确性。最后在此基础上运用等效散热系数法针对寒冷地区的大体积混凝土的越冬保温做了相应研究,为大体积混凝土的设计和施工提供一定的参考。User subroutine USERMAT. F and Uld Fin. 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,appropriate research had been carried out to provide some reference for the design and construction of mass concrete.

关 键 词：ANSYS 徐变应力 等效散热系数法 越冬保温 

分 类 号：TU37[建筑科学—结构工程]