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Abstract:
Beiliuwu Bridge in Huzhou is a steel-concrete composite integral bridge with semi-rigid connection between pier and girder. The bridge length is 38.2 m, the width is 12.14 m, and the span arrangement is (0.5+12+0.6+12+0.6+12+0.5) m. The main girder of the bridge is made of weather-resistant I-steel and cast-in-place concrete bridge deck. A rubber gasket is set at the joint of main girder and bent cap for adapting to the bending deformation of the main girder, and steel rods covered by rubber sleeve are utilized in the bent cap and cast integrally with the end crossbeam, forming a semi-rigid connection and eliminating the bearings on pier. The integral abutment is used to remove the expansion joints, thus it can be realized that the full bridge has no expansion joints and bearings. Meanwhile, a finite element model of the bridge is established by MIDAS Civil software to analyze its mechanical performance. The results show that, under the dead load, the adoption of integral abutment can make full use of the properties of materials of concrete deck and steel girder, respectively. The stress distribution of main girder will not be impaired whether hinge connection or semi-rigid connection is adopted on the top of pier. Under the temperature load, the stress distribution of the girder on the top of pier is different when the hinge connection or semi-rigid connection is adopted. © 2019, Journal Press, China Railway Bridge Science Research Institute, Ltd. All right reserved.
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Bridge Construction
ISSN: 1003-4722
CN: 42-1191/U
Year: 2019
Issue: 1
Volume: 49
Page: 101-106
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 3
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