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首页> 外文会议>6th International Colloquium on Stability and Ductility of Steel Structures Timisoara,Romania 9-11 September 1999 >Remarks on the use of EC3-annex J for the prediction of aluminium joint behaviour
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Remarks on the use of EC3-annex J for the prediction of aluminium joint behaviour

机译：关于使用EC3-annex J预测铝接头行为的说明

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A critical examination of the possibility to apply EC3-Annex J componetn mehtod for hte prediction of the ultimate resistance of aluminium T-stub joints is presented in this paper.Based upon numerical results,the need to develop alternative simplified procedures is firstly stated.This is essentially due to the fact that in case of aluminium alloy structural components the material strain hardening and ductility may strongly influence the behaviour of the system,especially at the collapse limit state.Therefore,the codified approach for steel appears to be inadequate to be simply extended to aluminium joints,being unable to predict the collapse mechanism type,as well as to account for the beeficial effect of hardening.On the basis of a wide parametric analysis, a correction procedure is proposed in this paper.It allows such effects to be properly accounted for at least when the collapse mechanism type 1 occurs - namely in case of strong bolt-weak T-stub flange combination - through a balancing factor to be used in the same simplified relationship proposed by CE3-Annex.J.Finally,the variation of this factor with both material strain hardening and ductility is provided.
机译：本文对EC3-Annex J组件方法用于预测T型铝接头的极限抗力的可能性进行了严格的审查。基于数值结果，首先提出了开发替代简化程序的需要。主要是因为在铝合金结构部件的情况下，材料的应变硬化和延展性可能会强烈影响系统的性能，尤其是在塌陷极限状态下。因此，钢的规范化方法似乎不够简单扩展到铝制节点，无法预测坍塌机制的类型，也不能考虑硬化的有益效果。在广泛的参数分析的基础上，本文提出了一种修正程序。至少在发生塌陷机构类型1时（即在牢固的螺栓-弱T-stub法兰组合的情况下）通过平衡最后，提供了该因子随材料应变硬化和延展性的变化。

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