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Circular hollow through plate connections

This article reviews prior research on connections between through‐plates and circular hollow sections (CHS) and presents a finite element (FE) study validated against laboratory experiments. The FE analysis indicates that, for a given geometric configuration, the behaviour of through‐plate‐to‐CHS connections closely matches the sum of branch‐plate‐to‐CHS connection behaviour in plate tension and compression. A connection design strength, which is shown to be valid for a wide range of connection geometries and which is the sum of existing design recommendations for branch plate‐to‐CHS connections loaded in axial tension and compression, is hence proposed for through‐plate‐to‐CHS T‐connections. This therefore enables maximum advantage to be taken of the capacity of this type of “reinforced” tubular connection.