输电铁塔无中间支撑压杆稳定承载力研究  

Stability Analysis Of The Angle Steel Under Compression In The Transmission Towers

作　　者：曹旭东 李晓莉[2] 胡大柱[3] 周光宇[4] 

机构地区：[1]中国建筑东北设计研究院,辽宁沈阳110003 [2]沈阳建筑工程学院信息与控制工程学院,辽宁沈阳110168 [3]同济大学土木工程学院,上海200092 [4]沈阳建筑大学,辽宁沈阳110168

出　　处：《房材与应用》2004年第6期31-33,共3页Housing Materials & Applications

摘　　要：以单面螺栓连接的等边单角钢压杆稳定试验资料为依据,利用大型有限元程序ANSYS建立了无中间支撑输电塔受压斜材的实体有限元模型,通过弧长法计算其极限荷载值,比较试验结果和有限元计算值后发现误差较小,说明该有限元模型可以满足工程上的应用。通过该模型计算了23组不同长细比的杆件,这组杆件拓宽了试验的长细比范围,并根据计算结果,运用最小二乘法数据统计原理,给出了适用于较大长细比范围的修正长细比公式。according to the experimental data of stability of single equal-leg angle steels under compression with one-sided bolt connection, the fem model of the panel in transmission towers is built up. By comparing the fem results, which are obtained by arc-lengthen method, and the experimental data, this model can be well fit for the requirement in engineering. Twenty-three members which to consider different slenderness ratios are analyzed. These members broaden the range of the slenderness ratios. According to the results, the updated slenderness ratio formulation is presented in the end.

关 键 词：单面连接 等边单角钢 ANSYS 受压斜材 修正长细比公式 

分 类 号：TU312[建筑科学—结构工程]