A corrugated steel web box girder bridge lined with concrete structure
A corrugated steel web and concrete-lined technology, which is applied to bridges, bridge construction, bridge parts, etc., to achieve the effects of preventing the lining concrete from cracking, improving the structural bearing capacity, and facilitating construction
Active Publication Date: 2021-04-13
山东高速高广公路有限公司 +1
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Problems solved by technology
[0003] In order to solve the above-mentioned technical defects of the steel-concrete composite section composed of traditional corrugated steel webs and solid lining concrete, the present invention provides a corrugated steel web box girder bridge lined with concrete structure
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[0016] In order to make the object, technical solution and advantages of the present invention more clear, the implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.
[0017] A corrugated steel web box girder bridge lined with concrete structure, including a corrugated steel web 2 of a box girder near the fulcrum of the bridge, and a plurality of studs 4 (or other shear forces) are welded on the inner surface of the corrugated steel web 2 Connectors), the inner surface of the corrugated steel web 2 is filled with a lined concrete layer, the lined concrete layer includes a concrete bottom layer 1.1 and a concrete surface layer 1.2, and the concrete bottom layer 1.1 is integrated with the shear connector The concrete block, the con...
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The invention relates to a novel lined concrete structure of a corrugated steel web box girder bridge, which includes a bridge box girder web-corrugated steel web, and shear connectors are welded on the inner surface of the corrugated steel web. The inner surface of the corrugated steel web is filled with a lining concrete layer. The lining concrete layer includes a concrete bottom layer and a concrete surface layer. The concrete block units are distributed at intervals, and the longitudinal and lateral spaced parts of the concrete block units are all arranged to be separated from the shear force connectors. The invention has simple structure and convenient construction; under the condition that the bearing capacity of the structure remains unchanged, the occurrence of cracks in the lining concrete is reduced; the prestressing efficiency near the fulcrum is improved, and the overall performance of the structure is stronger.
Description
technical field [0001] The invention relates to the field of steel-concrete composite bridge design, in particular to the design of a corrugated steel web box girder bridge lined with concrete structure. Background technique [0002] Long-span corrugated steel web box continuous girder bridges and continuous rigid frame bridges have large negative bending moments and shear forces near the pier tops, and the constraint conditions and stress states are relatively complex. In order to improve the mechanical performance of the corrugated steel web composite beam in this area, avoid the buckling of the corrugated steel web and the buckling of the steel flange, and at the same time make the shear force transfer more uniform, the inner side of the corrugated steel web is usually filled with concrete within a certain distance near the top of the pier. Steel-concrete composite section. Due to the inconsistency between the rigidity of corrugated steel web and concrete, there is obvio...
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IPC IPC(8): E01D2/04E01D19/00E01D21/00
CPCE01D2/04E01D19/00E01D21/00
Inventor 姜竹昌曹洪亮李淑琴尹永胜刘洪成路本升杨振宁李月路
Owner 山东高速高广公路有限公司