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A feasibility study on mechanical connections of very high strength (VHS) circular steel tubes

conference contribution
posted on 2023-05-23, 05:40 authored by Jiao, H, Mashiri, F, Xiao, Z, Imms, D
The Very High Strength (VHS) circular steel tube is a quenched and tempered high alloy steel that was invented in Australia in the 1990s. It has a yield strength of 1350MPa that is three times higher than the strength of common structural steels being used in the building industry. While it was found that VHS tube meets the strength and ductility requirements specified in current Australian steel design standards, VHS tubes are not extensively used as structural members due to the strength loss in the heat affected zone after welding. In this study, VHS tubes were connected by using an innovative mechanical joint method. No welding was involved in the connection. Tensile test results revealed that full strength of the VHS tubes was achieved by using this connection method.


Publication title

Proceedings of the 6th International Symposium on Steel Structures


K Johg-Rak, K Woo-Bum, K Ki-Du, Y Sung-Won, C Eun-Soo, J Young-Kyu




School of Engineering


Korean Society of Steel Construction

Place of publication

Seoul, Korea

Event title

International Symposium on Steel Structures (ISSS)

Event Venue

Seoul, Korea

Date of Event (Start Date)


Date of Event (End Date)


Rights statement

Copyright 2011 The Korean Society of Steel Construction

Repository Status

  • Restricted

Socio-economic Objectives

Other construction not elsewhere classified

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