International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022
p-ISSN: 2395-0072
www.irjet.net
ANALYSIS OF AXIAL LOAD BEHAVIOUR OF NONPRISMATIC SPECIAL SHAPED CFST COLUMNS Aleena Binth K H1, Amritha E K2 student, Structural Engineering, universal engineering college, Thrissur, Kerala professor, Civil Department, universal engineering college, Thrissur ,Kerala ---------------------------------------------------------------------***----------------------------------- ---------------------------------Abstract – Concrete filled steel tube (CFST) columns was 1M.Tech
2Associate
popular these days. In this study was mainly used to examine the presentation of non-prismatic CFST by different column arrangement of T and L shaped columns with steel plate joining, to examine influence of stiffness plates with and without holes in non-prismatic special shaped columns and investigation with different hole orientations, to examine the presentation of no prismatic CFST with non-prismatic end column elements. To examine the presentation of nonprismatic CFST column with different shapes. Result obtained that load carrying capacity was improved a lot by introduction of steel plate stiffeners. Non-prismatic LCFST can perform well than non-prismatic TCFST which can absorb more energy before fracture. The influence of stiffness plate with and without holes in non-prismatic column and with different hole orientation, here LCFST with zigzag holes have ultimate load. The performance of non-prismatic CFST with non-prismatic end column elements here LCFST have ultimate load. By comparing different shapes in CFST columns, here circular column has high deformation.
Fig -1: Model of T CFST
2. OBJECTIVES The main objectives are, 1. To examine, the non-prismatic CFST by different column arrangement of T and L shaped column by steel plate connection. 2. To examine, effect of stiffness plate with and without holes in non-prismatic column and with different hole orientations. 3. To study, performance of non-prismatic CFST with nonprismatic end column elements.
Keywords: Special-shaped column, CFST column, bearing capacity, Stability Stiffener.
1. INTRODUCTION
2.1 To examine the performance of non-prismatic CFST with different column arrangement of T and L shaped column with steel plate connection.
1.1 General Background The traditional rectangular column has column corners which protrude toward the inside of the rooms. The special shaped column denotes a structural column with L shaped, T shaped or cross shaped segments. Columns-limbs was as thick as wall. Special shaped column -structures have CFST gets advantage that has great bearing capacity and ductility of CFST structures. Compared to traditional CFST columns and special shaped column has smaller column limb dimension and has smooth connection with together infilled walls. Utilizes the indoor space more efficiently. Good architectural performance.
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To investigate the mechanical behavior of non-prismatic CFST by different column arrangement of T and L shaped column with steel plate connections were developed using ANSYS. Solid 180 Models were used to model T and L shaped non-prismatic CFST. Geometry of specimen was L- shaped and T- shaped nonprismatic columns was considers for the analysis. The columns steel tube thickness was took as demonstrated in the figures shown below. The thinness of steel tube was equal to 3mm with yield strength 306 MPa and stiffeners having thickness 3mm with yield strength 306 MPa and specimen length is taken as 900 mm.
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