Influence of Torsion Effect on the Mechanical Characteristics of Reinforced Concrete Column

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Wang, Debin^1 ; Fan, Guoxi^2

School of Civil and Safety Engineering, Dalian Jiaotong University, Dalian, Liaoning

116028, China^1

School of Engineering, Ocean University of China, Qingdao, 266100, Shandong, China^2

关键词: Angular displacement;    Flexural capacity;    Initial stiffness;    Mechanical characteristics;    Reinforced concrete column;    Rotational component;    Strain rate sensitivity;    Torsional effect;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012036/pdf
DOI  :  10.1088/1757-899X/269/1/012036

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The purpose of this paper is to study the effect of torsional effect and loading rate on the flexural capacity of RC members. Based on the fiber model of finite element software ABAQUS, a model has been established with the consideration of the strain rate sensitivity of steel and concrete. The model is used to reflect the influence of the rotational component of ground motion by applying the initial angular displacement. The mechanical properties of RC columns under monotonic loads are simulated. The simulation results show that there has been a decrease in the carrying capacity and initial stiffness of RC columns for high initial torsion angle. With the increase of initial torsion angle, the influence of loading rate on RC columns gradually increases.