Prediction of the cbl of the SDTC with tubular cross-section using Rayleigh-Ritz method
Tác giả: Nguyễn Thị Quỳnh, Nguyễn Thị Thanh Tùng
Proceedings of the 1st Conference on Advances in Civil Engineering (ICACE 2022)
Quyển: 01/2023 Trang: 75-80
Năm xuất bản: 1/2023
Tóm tắt
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.
Từ khóa
Rayleigh-Ritz Method; Prediction formula; Total potential energy; Euler's critical load; SDTS columns.
