A fornltila for calculating the heading section of arbitrary three-centered arch and circulararch types was derived in this paper.
文中推导出了任意三心拱和圆弧拱巷道断面积计算的公式。
2
The effects of geometrical imperfections, unuhiform loads and support settlements on the in-plane buckling of circulararch are investigated.
研究了几何缺陷、荷载非均匀分布和支座沉陷对圆弧拱面内屈曲的影响。
3
A propeller is arranged at the lower part of cover body in a circulararch shape and is connected with the motive power steering engine in a shaft connection.