Fatigue behavior of a riveted connection detail used in steel bridge construction

2020 ◽  
Vol 13 (1) ◽  
pp. 335-349
Author(s):  
Warda Abdulla ◽  
Craig Menzemer
2020 ◽  
Vol 20 (5) ◽  
pp. 1498-1508
Author(s):  
Wen-bo Gao ◽  
Quan-ke Su ◽  
Jin-wen Zhang ◽  
Hong-bing Xie ◽  
Feng Wen ◽  
...  

2020 ◽  
Vol 10 (4) ◽  
pp. 1239
Author(s):  
Haibo Yang ◽  
Ping Wang ◽  
Hongliang Qian ◽  
Pingsha Dong

The fatigue performance of an orthotropic steel bridge deck is significantly influenced by the type of the rib-to-deck connection considering the crossbeam. Fatigue fracture of the weld seam at the rib-to-deck connection has been a serious problem in such decks. In this paper, numerical models are developed for the orthotropic steel bridge decks and are analyzed for the fatigue behavior. The traction structural stress method is proven to be more accurate and effective in predicting the fatigue life. Fatigue behavior of three typical rib-to-deck connections are obtained by using traction structural stress method and by considering the effect of crossbeams. Compared to the bridge deck with weld seam of a large root, the fatigue performance of the deck with single-sided weld seam is much better with lower equivalent structural stress. The results indicate that the weld seam size should be strictly controlled for better fatigue resistance. The fatigue performance of the bridge deck with double-sided seam is significantly better than that of the bridge deck with single-sided weld seam. An increase in the thickness of the inner weld seam in the rib-to-deck connection optimizes the distribution of the equivalent structural stress and shifts the fatigue failure location from the weld root of the outer weld seam to the weld toe of the inner weld seam thus demonstrating the effect of the crossbeam. The trends of equivalent structural stress with geometric parameters of the weld seam in the rib-to-deck connection are obtained in this study. The fatigue behavior of the components and the equivalent structural stress are significantly influenced by the bridge deck thickness.


Author(s):  
Xiaoguang Liu ◽  
Yongjie Pan ◽  
Xinxin Zhao

<p>The construction informatization of railway bridges is becoming a significant feature of “intelligent manufacturing" in China's high speed railway (HSR). In order to explore the implementation of “Internet plus steel bridge construction" and further improve the quality and efficiency of construction, digitization and informatization of steel bridge construction have been studied. The overall framework of digital construction of railway steel bridge construction based on the internet of things (IoT) and BIM technology is proposed after analyzing the key process of quality control during the construction of railway steel bridge. And then the virtual reconstruction of railway steel bridge is presented based on the advanced digital technology. Taking the pre-assembly in fabrication stage and the bolted connection in erection stage of steel bridges as two representative examples, the virtual reconstruction information system has been developed and tested in some HSR railway bridge projects in China, which verifies the feasibility and efficiency of digital control virtual reconstruction strategy. The research is meaningful to the future application and development in intelligent construction of railway steel bridges.</p>


1994 ◽  
Vol 28 (2) ◽  
pp. 81-100 ◽  
Author(s):  
Jayme Mason ◽  
Khosrow Ghavami

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