本文主要针对海洋结构物中的典型局部结构——K型管节点局部结构进行数值模拟分析，考察局部结构型式对其疲劳行为的影响。
The influence of detailed configuration of Tubular K-joint on its fatigue behavior is investigated using numerical simulation analysis in this paper.
外包钢加固法所需钢材型号较简单，取材容易，可以根据节点和构件的型式因地制宜，但是对节点核心区的变形约束作用有限。
Wrapped steel strengthening method is easy to construct and fits many kinds of members. While the effects of limiting displacement of the joint.
外包钢加固法所需钢材型号较简单，取材容易，可以根据节点和构件的型式因地制宜，但是对节点核心区的变形约束作用有限。
Wrapped steel strengthening method is easy to construct and fits many kinds of members. While the effects of limiting displacement of the joint.
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