Structural Response of Reinforced Self-Compacting Concrete Deep Beam using Finite Element Method

Journal of Soft Computing in Civil Engineering

关键词: Self-Compacting Concrete;    Deep beam;    Concrete damage plasticity;    FEM;   

DOI  :  10.22115/scce.2018.50115

学科分类：工程和技术（综合）

来源: Pouyan Press

【 摘 要 】

Analysis of reinforced concrete deep beam is based on simplified approximate method due to the complexity of the exact analysis. The complexity is due to a number of parameters affecting its response. To evaluate some of this parameters, finite element study of the structural behaviour of reinforced self-compacting concrete deep beam was carried out using Abaqus finite element modeling tool. The model was validated against experimental data from literature. The parametric effects of varied concrete compressive strength, vertical web reinforcement ratio and horizontal web reinforcement ratio on the beam were tested on eight (8) different specimens under four point loads. The results of the validation work showed good agreement with the experimental studies. The parametric study revealed that the concrete compressive strength most significantly influenced the specimens’ response with the average of 41.1% and 49 % increment in the diagonal cracking and ultimate load respectively due to doubling of concrete compressive strength. Although increase in horizontal web reinforcement ratio from 0.31 % to 0.63 % lead to average of 6.24 % increment on the diagonal cracking load, it does not influence the ultimate strength and the load deflection response of the beams. Similar variation in vertical web reinforcement ratio lead to average of 2.4 % and 15 % increment in cracking and ultimate load respectively with no appreciable effect on the load deflection response.

【 授权许可】

CC BY