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。 Based on the stability test data of single-sided single-angle bar with single bolt connection, the finite element model ANSYS was used to establish the solid finite element model of the incompressible slope without intermediate support transmission tower. The ultimate load value Compared with the experimental results and the finite element calculation, the error was found to be small, indicating that the finite element model can meet the engineering application. Through the model, 23 groups of bars with different slenderness ratio were calculated. The group of bars broadened the slenderness ratio range of the test. Based on the calculation results and using the principle of least squares data statistics, Than the range of correction slenderness ratio formula.