Fatigue of rib shear connectors - Analysis and engineering model
Fatigue of rib shear connectors - Analysis and engineering model
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DOI：
10.1002/best.201900091
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发表时间：
2020-03-01
影响因子：
1.1
通讯作者：
Classen, Martin
中科院分区：
文献类型：
--
作者：
Christou, Georgios;Ungermann, Jan;Classen, Martin
肋剪力连接件的疲劳分析与工程模型复合销钉剪力连接件的使用在建筑和桥梁建设中变得越来越重要。除了复合材料销钉的高承载能力和刚度外，与头钉相比，它们在循环载荷下的承载性能明显更好，这是另一个重要的优势。因此，在桥梁建设中使用这些创新的剪切连接件特别有前途。然而，由于试验数据基础较低，现有的复合材料榫槽疲劳设计规范选择较为保守，无法充分发挥其良好的循环承载性能。本文在试验结果的基础上，详细分析了复合材料销钉在循环荷载作用下的承载性能。在此基础上，建立了复合材料销钉寿命估算模型。
Fatigue of rib shear connectors - Analysis and engineering modelThe use of composite dowel shear connectors is becoming increasingly important in both building and bridge constructions. In addition to the high load-bearing capacity and stiffness of the composite dowels, their significantly better load-bearing behaviour under cyclic loading compared to headed studs is one further important advantage. As a result, the use of these innovative shear connectors in bridge construction is particularly promising. However, the existing regulations for the fatigue design of composite dowels were chosen conservatively due to the low experimental data basis, so that the advantageous cyclic load-bearing behaviour cannot yet be fully deployed. Within the scope of this article, the load bearing behaviour of composite dowels under cyclic loading is analysed in detail on the basis of experimental findings. Based on this, a model for estimating the service life of the composite dowels is developed.