The static behavior of uniplanar tubular steel T-joints excluding the effects of chord bending
- Delft Univ. of Technology (Netherlands)
The design of welded tubular connections involves several failure modes. Especially for multiplanar joints, which are currently being investigated by the author, it is essential to base the strength on appropriate models which can be used in general for uniplanar and multiplanar joints. For this reason, a further analysis of the basic behavior is made. For example, for uniplanar T-joints, failure is caused by local joint failure or by overall chord bending and shear. The most governing parameter (chord length), however, is not included explicitly in the current design codes. In order to determine the influences of the geometrical parameters on the axial static strength due to local joint failure, 17 finite element analyses have been performed on T-joints. The influence of the geometrical parameter {alpha} (i.e., overall chord bending) on the static strength has been excluded by applying moments to the chord ends. The influences of {beta} and 2{gamma} on the xial behavior are made clear. Furthermore, after combining the finite element results with the results of the analytical ring model approach, an ultimate strength formula has been established for axially loaded uniplanar T-joints, excluding the effects of overall chord bending. The chord bending effects will be included separately, which makes the behavior more clear and is in line with the approach for other types of joints.
- OSTI ID:
- 433606
- Report Number(s):
- CONF-940409--; ISBN 1-880653-10-9
- Country of Publication:
- United States
- Language:
- English
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