Tensile creep model for concrete subject to constant restraints
Ya WEI(),Xiangjie YAO
Key Laboratory of Civil Engineering Safety and Durability of the Ministry of Education of China, Department of Civil Engineering, Tsinghua University, Beijing 100084, China
Tensile stresses develop in restrained concrete slabs with shrinkage deformation. The appropriate creep or relaxation functions are crucial for assessing the stress development and the associated cracking potential. Existing creep models were found not suitable for such stress evaluations. This study investigates restrained slabs stress-strain characteristics and tensile creep behavior in axially restrained concrete specimens which represent field conditions of actual structures. A modified tensile creep compliance function is used to account for the high viscous effect with restrained conditions for accurate predictions of the stress and cracking potential in structures.
魏亚, 姚湘杰. 约束状态下混凝土拉伸徐变模型[J]. 清华大学学报（自然科学版）, 2014, 54(5): 563-567.
Ya WEI, Xiangjie YAO. Tensile creep model for concrete subject to constant restraints. Journal of Tsinghua University(Science and Technology), 2014, 54(5): 563-567.
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2014, Vol. 54 
),姚湘杰
