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A kind of structure of steel-concrete joint section of steel beam insertion type mixed beam

A hybrid beam, plug-in technology, applied in the direction of bridges, bridge parts, bridge materials, etc., can solve the problems of uneven transition bridge deck pavement, and achieve the effect of convenient processing, production, installation and layout, clear force, and reasonable transition.

Active Publication Date: 2016-09-14
西安长安大学工程设计研究院有限公司
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Problems solved by technology

In addition, the steel-concrete combination section is a composite structure, and the smooth transition of the synergistic stress and internal force between the steel and concrete materials is very important, and the uneven transition will also have a very negative impact on the bridge deck pavement

Method used

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  • A kind of structure of steel-concrete joint section of steel beam insertion type mixed beam
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  • A kind of structure of steel-concrete joint section of steel beam insertion type mixed beam

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Embodiment Construction

[0045] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, the present invention includes a concrete beam-composite beam connection structure connected between the concrete beam 1 and the composite beam 2, and the composite beam 2 includes a plurality of steel beams 2-1 arranged along the longitudinal bridge direction and laid on a multi-channel The concrete bridge deck 2-2 on the steel beam 2-1, multiple steel beams 2-1 are arranged on the same horizontal plane and arranged from left to right along the transverse bridge direction, the concrete bridge deck 2- 2 and the concrete beam 1 are fastened and connected as a whole, and the upper surfaces of the two are flush. The structures of multiple steel beams 2-1 are the same, the steel beams 2-1 are steel plate beams and their cross-sectional shape is I-shaped, and the steel plate beams include upper flange plates 2-11, located on the upper flange The lower flange plate 2-12 directly below the plate 2...

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Abstract

The invention discloses a steel beam inserted type steel-concrete combined section construction of a composite beam. The construction comprises a concrete beam-composite beam connecting structure connected between a concrete beam and the composite beam, and the composite beam comprises multiple steel beams and concrete bridge deck slabs. Each steel beam is a steel plate beam and comprises an upper flange plate, a lower flange plate and a web plate. The concrete beam-composite beam connecting structure comprises a front bearing plate, multiple rear bearing plates, multiple upper transverse penetrating steel bars, multiple lower transverse penetrating steel bars and multiple combined shearing resistant connecting structures located on the joint of the concrete beam and the composite beam. Each combined shearing resistant connecting structure comprises two upper rigid transition stiffening ribs, two lower rigid transition stiffening ribs, two upper longitudinal stiffening ribs and two lower longitudinal stiffening ribs. Shear nails are arranged on the sections, inserted into the concrete beam, of the upper flange plates and the lower flange plates. The steel beam inserted type steel-concrete combined section construction of the composite beam is simple in structure, reasonable in design, easy and convenient to construct and good in using effect, the connecting effect for constructing and forming steel-concrete joint parts is good, and stress is reasonable.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a steel-concrete combination section structure of a steel beam insertion type mixed beam. Background technique [0002] There are generally two types of materials for bridge girders: steel and concrete. The main girders can be divided into steel girders, concrete girders, composite girders, and hybrid girders according to the different combinations of these two materials. Composite beams are composed of steel and concrete in the cross section, which is a combination of different materials in the cross section. The composite beam means that the main beam is composed of steel and concrete along the length direction of the beam. The beam body of the main beam is a steel beam, and the beam body of the side span is a concrete beam. In hybrid girder cable-stayed bridges and other types of hybrid girder bridges, the steel-concrete combined section completes the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D19/00
CPCE01D19/00E01D2101/268
Inventor 刘永健周玉利张凯刘江胡建荣朱伟庆刘纯
Owner 西安长安大学工程设计研究院有限公司
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