Behavior analysis of bar gaps in welded YT-joints for rolled-steel circular hollow sections
We present a parametric analysis of gap variation between the lap brace and through brace of YT welded joints for rolled-steel circular hollow sections on plane steel structures. Our aim is to investigate the collapse behavior of YT-joints under lap brace axial compression. In particular, we focus on e/d0 ratios above 0.25 so bending moments can be taken into account during the design. We find that joint failure is primarily due to chord wall plastification (Mode A) and cross-sectional chord buckling (Mode F) in the region underneath the lap brace. Our joint design followed the Limit States Method, and our results were based on a comparative analysis of three different methods: an analytical solution derived from a set of international technical norms, an experimental analysis, and numerical modeling using Ansys as calibrated by our experimental results.
Main Authors: | Vieira,R.F., Requena,J.A.V., Freitas,A. M. S., Arcaro,V. F. |
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Format: | Digital revista |
Language: | English |
Published: |
Associação Brasileira de Ciências Mecânicas
2010
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252010000400001 |
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