自重对均布风载下等截面高塔塔顶挠度的影响  

Effect of Weight on the Top Deflection of High Columns under Distributed Wind Pressure

作　　者：田健[1] 张忠宁[1] 李新[1] 

机构地区：[1]沈阳化工学院机械工程学院,辽宁沈阳110142

出　　处：《压力容器》2006年第6期21-22,48,共3页Pressure Vessel Technology

摘　　要：在对自支承式塔设备建立合理的力学模型并进行受力分析的基础上,采用材料力学中的叠加法,计算了高塔设备在均布风载荷、自重联合作用下的塔顶静挠度,提出对于自重和长细比均较大的高塔,塔体自重对塔顶挠度的影响不可忽视,并推导出了计算这种影响的表达式。On the basis of analyzing forces on the self- supported column, the superposition method in mechanics of material was used to calculate the steady deflection at top of the high column under both of weight and distributed wind pressure. The results show that the effect of weight to top deflection of the heavy weight high column can not be ignored and a formulation is deduced to express this effect.

关 键 词：高塔 塔顶挠度 均布风载 自重 

分 类 号：TQ052.4[化学工程] TQ050.2