In order to ensure the installation quality of the housetop net structure of the civic centre in Shenzhen, and to bring into play the compression stress on the structure, the forward intersection method was applied to determine the geometric centre of the spherical joints.
为确保深圳市民中心大屋盖网架的安装质量,发挥结构的受力作用,运用前方交会法来确定球心节点的几何中心。
distance between the geometric centre of the bearing set and the point of action of the radial load fr, mm
是轴承组几何中心和径向负荷Fr作用点之间的距离,毫米
the geometric concept of the mique point with a complete quadrilateral is employed to locate the instantaneous acceleration centre of a moving plane.
本文运用几何学中完全四边形的密克点概念来求取运动平面瞬时加速度中心。
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