Composite column tests - database and comparison with Eurocode 4

Abstract

[EN] The database of 1819 tests on concrete-filled steel tube columns was reported in 2008 [1,2] and covered all tests traced by the author up to 2007. This paper reports on 473 more tests carried out by 26 researchers between 2007 and 2017. These have been divided into short and long circular section columns, rectangular section columns, and also into those subjected to axial load and those with an eccentric load (causing an end moment), and collected into a new database. The results are compared with the provisions of Eurocode 4 (EC4) and show the overall average ratio of Test failure load to EC4 prediction for these 473 tests is 1.10. Eurocode 4 is thus a very reasonable predictor of the failure load and can be used with confidence to design composite columns. The detailed data can be accessed on the ‘web’, which also contains references to the 51 papers from which the data has been extracted; it will be of use to researchers of composite columns who wish to compare any theoretical analysis they produce with test data.