Experimental behaviour of thin-walled steel tube confined concrete column to RC beam joints under cyclic loading

This paper describes eight tests carried out on thin-walled steel tube confined concrete (TWSTCC) column to reinforced concrete (RC) beam joints Subjected to cyclic loading, where the column cross-sectional type and the level of axial load in the column were selected as test parameters. In addition, two concrete filled thin-walled steel tubular column to RC beam joints were also tested for comparison. Each TWSTCC joint specimen consisted of a TWSTCC column and a RC beam Pass through the column to represent an interior joint in a building, The experimental results are analysed to evaluate the influences of different testing parameters on the performance of the beam-column joints. It was found that the TWSTCC joints show generally excellent seismic performance and is adoptable in practical engineering, particularly in earthquake zone. (C) 2009 Elsevier Ltd. All rights reserved.