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

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.

Abstract: 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.