开口薄壁截面梁的弯心坐标的简便计算  

Simple calculation of the coordinates of the bending center of the thin-walled beam with open section

作　　者：孙晔青[1] 黄玲[1] 

机构地区：[1]南昌航空工业学院土木建筑系,江西南昌330034

出　　处：《南昌航空工业学院学报》2005年第2期16-19,共4页Journal of Nanchang Institute of Aeronautical Technology（Natural Science Edition）

摘　　要：针对开口薄壁截面梁的剪流和弯心坐标的复杂计算问题,导出了简便计算公式。对于由n个小矩形组成的开口薄壁截面,可以用图乘法计算弯心坐标,避免了复杂的积分运算。A simple calculation expression of the shearing flow and the coordinates of bending center is introduced for the thin- walled beam with open section. The method of graph multiplication can be used to calculate the coordinates of the bending center of the thin - walled beam with open section which consists of n small rectangles, thus avoiding complicated integrated operation.

关 键 词：开口薄壁截面 弯心坐标 剪流 静矩 

分 类 号：O34[理学—固体力学]