Prediction of the cbl of the SDTC with tubular cross-section using Rayleigh-Ritz method
Authors: Thi-Quynh Nguyen, Thanh-Tung Nguyen Thi
Proceedings of the 1st Conference on Advances in Civil Engineering (ICACE 2022)
: 01/2023 : 75-80
Publishing year: 1/2023
Abstract. This paper proposes a procedure to determine the Critical Buckling Load (CBL) of the symmetry double tapered steel column (SDTC) with tubular cross-section using Rayleigh-Ritz methods. The computer program based on the Rayleigh-Ritz method and MATLAB has been presented. The computer program has been verified with previously published results and obtained reliably. An investigation of CBL of SDTS columns with changes in column length and outer diameters has been done. Finally, the regression formulas were proposed based on the tool Trendline options/Polynomial of Microsoft Excel 365 software can be helped the designer to predict the critical buckling load of the symmetry double tapered column with tubular cross-section.
Rayleigh-Ritz Method; Prediction formula; Total potential energy; Euler's critical load; SDTS columns.
