Dynamic Stiffness of Non-Loaded and Loaded Beams

2nd International Conference on Civil Engineering and Materials Science

Musial, M.^1

Faculty of Civil Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspiaskiego, Wroclaw

50-370, Poland^1

关键词: Bending stiffness;    Dynamic rigidity;    Dynamic stiffness;    Eigen frequencies;    RC beams;    Reinforced concrete beams;    Static stiffness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/216/1/012020/pdf
DOI  :  10.1088/1757-899X/216/1/012020

来源: IOP

【 摘 要 】

The problem of the bending stiffness of reinforced concrete beams is considered. The research so far has shown that static stiffness (determined on the basis of deflections) is lower than dynamic stiffness (determined on the basis of eigenfrequencies). The analyses focus on eigenfrequencies determined in different ways. The dynamic rigidities of cracked RC beams were found to differ between non-loaded and loaded beams.