Corrugated steel web box girder with steel-concrete combined board lower wing edges

A corrugated steel web and concrete technology, applied in bridges, bridge materials, bridge construction, etc., can solve the problems of reducing structural bearing capacity, stiffness and durability, difficulty in on-site operation and construction, and difficulty in popularization and application, and achieve reduction Formwork engineering and concrete wet work workload and formwork support process, shorten the construction period, and reduce the effect of on-site workload
CN101280547AInactive Publication Date: 2008-10-08TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2008-10-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a corrugated steel web box beam with steel-concrete composite plate bottom flange, in particular to a corrugated steel web box beam that is applied in railway and bridges. The corrugated steel web box beam is composed of a top flange concrete slab, a corrugated steel web and a steel-concrete composite plate bottom flange, wherein steel-concrete composite plate is composed of a slotted steel plate formed by side plates and bottom plates, and a concrete, the steel plate is welded with bolts and reinforced meshes are arranged at middle position of the concrete. The structure can overcome the problem that the traditional corrugated steel web box beam has complicated construction for steel structure positioning on the spot, and also can exert tensile strength of the steel plate so as to improve crack resistance of structure effectively and avoid crack from being exposed, so that structural endurance is improved obviously, therefore the work load and difficulty of the construction of concrete in-field casting of box beam bottom flange is reduced greatly. The corrugated steel web box beam with steel-concrete composite plate bottom flange has simple structure, rapid and convenient construction and is easy to meet the requirement of planar shape of bridge, and also has good technical economic benefit.
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Description

technical field

[0001] The invention relates to a corrugated steel web box girder with a lower flange of a steel-concrete composite plate, which can be applied to railway bridges and highway bridges; it belongs to the technical field of bridge structures. Background technique

[0002] Traditional corrugated steel web concrete composite box girder, such as figure 1 As shown in (a) and 1(b), it consists of the upper flange concrete slab 1, the lower flange concrete slab 2 and two corrugated steel webs placed vertically or obliquely. The corrugated steel webs of each leg and the upper and lower After the steel plate of the flange is welded at the factory and transported to the construction site, it needs to be accurately positioned, which makes the construction difficult. When pouring the lower flange concrete slab, it is necessary to erect scaffolding and supporting formwork on site, and there are problems such as on-site operation and construction difficulty. On the other h...

Claims

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