The optimization of the radius of openings and the gap between openings is performed based on a modified eigen buckling load, which corresponds to arch efficiency.
通过选用一种代表开洞拱效率的特征值屈曲荷载参数，研究了腹板孔洞的半径和间距的优化尺寸。
The effects of geometrical imperfections, unuhiform loads and support settlements on the in-plane buckling of circular arch 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。
For a secondary bifurcation buckling load, the limit load carried capacity of the arch of 0.1 rise-span ratio is the biggest one under a full span load distribution.
全跨均布荷载作用下，矢跨比0.1的拱极值点屈曲和二次分岔屈曲极限承载力均大于其他拱。
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