Numerical Model and Analysis of Crack on Super-long Thick Concrete Floor Slab in Construction
YUE Yuan-yuan1, LIU Bo-tao2, YUAN Shu-qiang2, CHEN Shi-cai2
1.Patent Examiniation Cooperation Center, Sipo, 100088, Beijing, China; 2. Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, 100124, Beijing, China
Abstract：
Based on concrete exponential form creeping model, subprogram development function of finite element software ABAQUS was used to calculate the creepage of super-long floor slab. The influencing law of hydration heat of floor slab was obtained and it was found that addition of 2% swelling agent could effectively reduce the shrinkage creepage, after consideration of hydration heat temperature field calculation, temperature stress calculation, as well as the influence of material nonlinearity and boundary nonlinearity of hydration heat, dynamic material performance, floor slab division and formwork dismantlement.
YUE Yuan-yuan,LIU Bo-tao,YUAN Shu-qiang et al. Numerical Model and Analysis of Crack on Super-long Thick Concrete Floor Slab in Construction[J]. Architecture Technology, 2016, 47(11): 1002-.
