Finite Element Analysis of the Effect of Basalt-Polypropylene Hybrid Fiber on the Performance of RPC Beam

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Guo, Can^1 ; Pei, Changchun^1

Department of Structural Engineering, College of Engineering, Yanbian University, Yanji, Jilin

133000, China^1

关键词: Bending resistance;    Blending ratio;    Calculation formula;    Concrete beam;    Flexural capacity;    Mid-span deflection;    Normal section;    Theoretical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032102/pdf
DOI  :  10.1088/1755-1315/237/3/032102

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to improve the mechanical properties and bending resistance of RPC concrete beams, the influence of RPC beams were analyzed by finite element analysis by adding basalt-polypropylene hybrid fibers and changing their fibers blending ratios. The results show that compared with the conventional RPC beam, the cracking load, mid-span deflection and maximum compressive stress of the hybrid fiber RPC beams are greatly improved in the initial cracking state; the cracking load and cross of the hybrid fiber RPC beams in the yield state medium deflection and maximum compressive stress of concrete do not change much. Through the finite element analysis and theoretical calculation, the calculation formula of the normal section flexural capacity of basalt-polypropylene hybrid fiber RPC beams is derived.