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以线粘弹性模型理论和有限元初应变增量法为基础,提出了考虑材料粘弹性性质的水泥混凝土路面温度翘曲应力的数值计算方法,并编制了相应的计算机程序VT05.运用该程序分析了两种地基上的混凝土路面板在温度翘曲变形受到地基反力约束时产生的翘曲应力,得到了较仅考虑材料弹性特征时更为合理的结果.为完善水泥混凝土路面温度翘曲应力的计算提供了科学的方法.
Based on the linear viscoelastic model theory and the finite element initial strain increment method, a numerical calculation method for temperature warping stress of cement concrete pavement considering the viscoelastic properties of the material is proposed, and the corresponding computer program VT05 is compiled. This program was used to analyze the warping stress of concrete pavement panels on the two foundations when the temperature warpage was constrained by the ground reaction force, and a more reasonable result was obtained when considering only the material elasticity characteristics. It provides a scientific method to improve the temperature warping stress calculation of cement concrete pavement.