Research on the Nonlinearity Finite Element in the Super-Long Reinforced Concrete Frame Structure

Abstract:

Basing on the finite element analysis software, the emergence of crack under the effect of gradual changed temperature load and the change of stress which are in the condition of super reinforced concrete frame structure are analyzed from the linear and nonlinear numeral simulation. The simulation shows that the structure component under the normal condition is cracked and turn into the nonlinear condition and the steel bars still works under the elastic stage. Meanwhile the actual stage which is reflected by the elastic-plastic analysis of the internal force and deformation is compared by the results which are obtained by the actual project observed results and the calculation of the simplified model. So the distribution of the stress which is caused by the structure temperature reduction is greatly evaluated by the usage of the cracking model which is nonlinear finite element and also plays an important role in the engineering project and practice.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1226-1229
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1226
• Online since: December 2014
• Authors: Yong Sheng Zhang*, Yan Ying Li
• Keywords: Crack, Finite Element, Nonlinearity, Super-Long Frame Structure, Temperature Stress

References

[1] Zhu Bolong, Dong Zhenxiang. Nonlinear analysis of reinforced concrete Shanghai: Tongji University Press. (1985).

[2] Ted Belytschko. Wing Kam Liu. Nonlinear Finite Element continuum and structures Beijing: Tsinghua University Press. 2002, 12.

[3] Alosio Ernesto Assan. Nonlinear analysis of reinforced concrete cylindrical. Computer & Structure (2002).

[4] H G Kwak. F.C. Filippou. Nonlinear FE analysis of RC structure under monotonic loads Computer & Structure (1997).

[5] Fan Xiaoqing temperature effects and structural design. Journal of Building Structures. 1999, 4.

[6] O. Santurjian. L. kolarow. A Spatial FEM Model of Thermal Stress State of Concrete Blocks with Creep Consideration. Computer & Structure (1996).

DOI: 10.1016/0045-7949(95)00156-b

[7] Li Lijuan, LuWeiwen. Senior seamless design of reinforced concrete structures and floor long stress test analysis. Journal of Building Structures, 2004, 2.

[8] Han Chongqing, Meng Shaoping. Research on a large area of concrete beam temperature stress problems. Construction techniques, 2002, 12.