Finite-element study on the ultimate strength of planer overlap tubular K-joints and full scale tests on the ultimate strength of CHS joints are researched in this dissertation.

• 本文研究的内容主要包括平面K型圆钢管搭接节点极限承载力的有限元研究和圆钢管相贯节点极限承载力的足尺试验研究两部分。