Buckling Analysis of Tapered Continuous Columns by Using Modified Buckling Mode Shapes

作     者：Sina Toosi Akbar Esfandiari Ahmad Rahbar Ranji 

作者机构：Department of Ocean Engineering AmirKabir University of Technology 

出 版 物：《Journal of Marine Science and Application》 (船舶与海洋工程学报（英文版）)

年 卷 期：2019年第18卷第2期

页      面：160-166页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 

主　　题：Buckling analysis Tapered column.Continuous columns Finite element method Modified buckling mode shapes 

摘      要：Elastic critical buckling load of a column depends on various parameters,such as boundary conditions,material,and crosssection *** main purpose of this work is to present a new method for investigating the buckling load of tapered columns subjected to axial *** proposed method is based on modified buckling mode shape of tapered structure and perturbation *** mode shape of the damaged structure can be expressed as a linear combination of mode shapes of the intact *** in length in piecewise form can be positive or *** method can be used for single-span and continuous *** of results with those of finite element and Timoshenko methods shows the high accuracy and efficiency of the proposed method for detecting buckling load.