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Content available Fatigue stress analysis of orthotropic steel bridge decks in Xinghai Bay Cross-sea Bridge
Li Wenwu, Qin Sifeng, Wang Huili
Archives of Civil Engineering
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2020
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Vol. 66, nr 1
327--340
EN
Fatigue properties of orthotropic steel bridge deck of Xinghai Bay Cross-sea Bridge in Dalian were analyzed. The segment model of orthotropic bridge deck was established by using the finite element software Abaqus. The intersection between diaphragm and U-rib was selected to analysis. The fatigue loading model III was adopted which was provided by “Specifications for Design of Highway Steel Bridge”. First, the transverse stress influence line and the transverse severest loading position were determined. Then, five loading regions were selected near the transverse severest position. The stress amplitude of the intersection was ascertained through loading on the longitudinal bridge for each region. Finally, the fatigue checking for the intersection was carried out. The results showed that the maximum fatigue stress amplitude of orthotropic deck in Xinghai Bay Cross-sea Bridge met the requirements of "Specifications for Design of Highway Steel Bridge".
2
Content available remote Analysis on Wave Forces Acting on Box Girder of Twin-Decks Offshore Bridge
Zhang X., Zhou H., Wang H., Gao K.
Przegląd Elektrotechniczny
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2012
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R. 88, nr 9b
29-32
EN
Based on the practice twin-decks bridge and model test, and considering different deck elevation and the different wave factor, the wave loads of various models were simulated using the 2D numerical wave tank, and compare with the corresponding experimental values and theoretical values. All the wave forces have the tendency to decrease after they reach the maximum with the increase of bridge elevation, and there exists the most dangerous bridge elevation under wave action. The optimum elevation of the bridge deck in this paper is recommended +5.5~+6.0 m.
PL
W artykule analizowano siły działające na skutek ruchu fal na dźwigar mostu morskiego dwupoziomowego. Do symulacji wykorzystano metody numeryczne i określono najbardziej niebezpieczne wyniesienie mostu.
3
Content available remote Chiński kolos
Sikora A.
Nowoczesne Budownictwo Inżynieryjne
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2007
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Nr 5
26
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