Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Advances in Concrete Construction Volume 17, Number 5, May 2024 , pages 273-284 DOI: https://doi.org/10.12989/acc.2024.17.5.273 |
|
|
|
Flexural behaviour of fully concrete encased steel castellated section with different configuration of openings |
||
G. Velrajkumar and M.P. Muthuraj
|
||
| Abstract | ||
| The steel-concrete composite system has been playing a vital role in the construction sector for the past two decades. By using steel and concrete together, we achieve strong load resistance with minimal deflection and bending stress. The study focuses on the numerical and analytical behaviour of concrete encased steel castellated beams and compared them with previous experiments. The study used five composite beams, including one control reinforced concrete beam (CC), one fully concrete encased steel beam (FCES), and three fully concrete encased castellated beams. The major variable is the opening configuration of the castellated beam, such as openings along the longitudinal axis, above the longitudinal axis, and below the longitudinal axis. The 150 mm × 250 mm cross section and 2000 mm in length of beams were used. Using the finite element software ANSYS, we conduct nonlinear finite element analysis for the entire beam and compare it with test data. The numerical load carrying capacity of concrete encased steel castellated beam with a hexagonal opening above the longitudinal axis (FCESCB H2) is 160 kN is closer to the experimental observation. Von Mises strain of FCESB is 0.004232, which is lower than CB and composite castellated beam. The ductility factor and energy absorption capacity of FCESB are 5.090 and 1688.47 kNm. It was observed that the configuration of the opening will influence the strength of the composite beam. Plastic moment methods were employed to estimate the ultimate load carrying capacity of the beam. In the analytical study the beams were assumed as perfectly plastic. The ultimate analytical load carrying capacity of FCESCB H2 is 21.87% higher than FCESB. It found that performing FCESCB H2 is superior to the entire specimen. | ||
| Key Words | ||
| castellated beam; encased beam; FEM; flexural behavior; plastic moment | ||
| Address | ||
| (1) G. Velrajkumar: Department of Civil Engineering, Easwari Engineering College, Chennai, Tamilnadu, 600 089, India; (2) M.P. Muthuraj: Department of Civil Engineering, Coimbatore Institute of Technology, Coimbatore, Tamilnadu, 641 014, India. | ||
| References | ||
| ||