%0 Journal Article
%T ON STABILITY OF I-SECTION STEEL BEAM CANTILEVERS<br>工字型截面悬臂钢梁的稳定性研究
%A ZHENG Changba
%A ZHANG Honghai
%A LIN Zhixiang
%A <br>郑昌坝
%A 张洪海
%A 林志祥
%J 力学与实践
%D 2007
%I 
%X A given length thin-wall member,under axial or lateral loads below its material limit strength, may under go elastic flexural and torsional buckling.An analysis is carried out for the I-section cantilever steel beam in this paper.Equilibrium method and energy method are used to obtain the differential equation of the elastic flexural and torsional buckling under the axial pressures and transverse loads,and Ritz method is used to solve the derived differential equation and obtain critical values and the limit characteristics of the fixed beam section.
%K thin-walled member
%K I-section
%K flexural and torsional buckling
%K limited characteristic length<br>薄壁构件
%K 工字型截面
%K 弯扭屈曲
%K 极限特征长度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=0BF5C9FB031A532ED0A6D99DC4F6181A&aid=8645C7B6A08160D7C918C3C38C3138C1&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=B31275AF3241DB2D&sid=014B591DF029732F&eid=6AC2A205FBB0EF23&journal_id=1000-0879&journal_name=力学与实践&referenced_num=0&reference_num=10