The laws of the ultimate capacity ratio of K-joints and KK joints (namely multiplanar coefficient) varying with the main geometrical parameters were obtained.
研究了KK型节点和K型节点极限承载力之比（即空间作用系数）随节点几何参数的变化规律。
Moreover, through comparision of the planar K-joints, the load bearing capacity ratio of multiplanar KK-joint and planar K-joint is also obtained.
另外，通过与平面K型节点对比，得出空间节点与平面节点承载力的比值。
The planar K-type and multiplanar KK-type joints are very commonly used in the directly welded circular hollow section (CHS) structures.
平面K型和空间KK型节点是直接焊接圆钢管结构中普遍使用的一种节点形式。
The planar K-type and multiplanar KK-type joints are very commonly used in the directly welded circular hollow section (CHS) structures.
平面K型和空间KK型节点是直接焊接圆钢管结构中普遍使用的一种节点形式。
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