Fatigue performance of UHPC bridge deck system with field-cast dovetail joint

2021 ◽  
Vol 237 ◽  
pp. 112108
Author(s):  
Kaiwei Lu ◽  
Qizhi Xu ◽  
Wenchao Li ◽  
Ye Hu ◽  
Jingquan Wang ◽  
...  
Keyword(s):  
Bridge Deck ◽  
Fatigue Performance

Fatigue performance of bridge deck pavement materials

2009 ◽  
Vol 24 (2) ◽  
pp. 318-320 ◽  
Author(s):  
Shaopeng Wu ◽  
Guang Zhang ◽  
Jun Han ◽  
Gang Liu ◽  
Jie Zhou
Keyword(s):  
Bridge Deck ◽  
Fatigue Performance ◽  
Pavement Materials ◽  
Bridge Deck Pavement

scholarly journals Fatigue Performance of Different Rib-To-Deck Connections Using Traction Structural Stress Method

2020 ◽  
Vol 10 (4) ◽  
pp. 1239
Author(s):  
Haibo Yang ◽  
Ping Wang ◽  
Hongliang Qian ◽  
Pingsha Dong
Keyword(s):  
Bridge Deck ◽  
Weld Seam ◽  
Numerical Models ◽  
Fatigue Behavior ◽  
Fatigue Performance ◽  
Steel Bridge ◽  
Structural Stress ◽  
Weld Toe ◽  
Weld Root ◽  
And Shifts

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.

Study of Fatigue Tests on the Structural Details of Welding Joints of Integral Bridge Deck and Main Girder Gusset Plates

2011 ◽  
Vol 243-249 ◽  
pp. 1638-1645
Author(s):  
Cai Ping Huang ◽  
Zhong Xian Zhang ◽  
Ji Zhang ◽  
Jin Zhou Chen
Keyword(s):  
Fatigue Life ◽  
Bridge Deck ◽  
Fatigue Tests ◽  
Fatigue Performance ◽  
Scale Model ◽  
Gusset Plates ◽  
Integral Bridge ◽  
Structural Details ◽  
Tensile Forces ◽  
Welding Joints

Under the action of both dead and live loads, the welding joints of the integral bridge deck and the main truss gusset plates of a steel truss bridge in the transverse and longitudinal directions are all subjected to tensile force, the fatigue performance of which greatly influence the safety and durability of the bridge during operation. Fatigue tests were carried out on a full-scale model designed and made in accordance with the structural details of the welding joints of the integral bridge deck and the main truss gusset plates of Dashengguan Changjiang River Bridge. On the basis of the results of the fatigue tests, the stress distribution of the welding joints was analyzed, the fatigue life of the welding joints under load cycles with constant amplitude was discussed and the fatigue performance of the welding joints under the condition of two-way tensile forces was studied. It is concluded that under the effect of fatigue loading with given amplitude, the fatigue life of the welding joints is more than 200 million numbers of load cycles, the structural details of welding joints have ample fatigue resistant ability under the condition of two-way tensile forces, and the maximum main stress value of the fatigue tests is lower than the allowable fatigue stress value given in various codes and relevant references and the fatigue strength meets requirement.

scholarly journals An Experimental Study on Properties of Pre-Coated Aggregates Grouting Asphalt Concrete for Bridge Deck Pavement

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5323
Author(s):  
Zhicheng Xiao ◽  
Wenke Huang ◽  
Kuanghuai Wu ◽  
Guihai Nie ◽  
Hafiz Muhammad Zahid Hassan ◽  
...  
Keyword(s):  
High Temperature ◽  
Asphalt Concrete ◽  
Bridge Deck ◽  
Asphalt Binder ◽  
Microstructural Analysis ◽  
Temperature Stability ◽  
Fatigue Performance ◽  
High Temperature Stability ◽  
Pavement Materials ◽  
Bridge Deck Pavement

Epoxy asphalt concrete, mortar asphalt concrete and Gussasphalt concrete are commonly used types of deck pavement materials in bridge deck pavement engineering. However, achieving the high-temperature stability and anti-fatigue performance of the deck pavement materials is still challenging. In order to reduce the rutting and cracking risks of the asphalt mixture, this paper proposed pre-coated aggregates grouting asphalt concrete (PGAC) for bridge deck pavement. Laboratory tests were conducted to determine the optimum grouting materials and to evaluate the mechanical performances of the PGAC material. Test results showed that the mechanical properties for PGAC with grouting material of high-viscosity-modified asphalt binder blending with mineral filler were superior to that of GMA-10 used for the Hong Kong-Zhuhai-Macau Bridge deck pavement. Microstructural analysis showed that the PGAC had a more stable skeleton structure compared to other typical aggregate mixtures. This study highlights the performances of the proposed PGAC and sheds light on the deck pavement material improvement of both high-temperature stability and anti-fatigue performance that could be achieved.

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