Steel truss web-concrete combined joint
A technology of combining joints and concrete, applied in the direction of buildings, bridges, etc., can solve problems such as unfavorable lifting, complex construction procedures, complex structures, etc., to simplify the construction procedures, improve the overall shear performance, and reduce the construction workload.
Pending Publication Date: 2017-12-29
SOUTHEAST UNIV
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Problems solved by technology
[0003] The joint is an important part of the steel truss web-concrete composite girder bridge. The joint connection forms are various, and it is the key part of this type of bridge that needs to be studied. At present, the joints used in the steel truss web-concrete composite girder bridge are mainly isolated joint structures. , each node independently resists shear, and the node bears a relatively large local shear force, which requires a more complex structure; in addition, the isolated node structure is not conducive to hoisting in pieces, and the construction process is more complicated
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Embodiment 1
[0029] A steel truss web-concrete composite node (such as figure 1 shown), the node includes a concrete top slab 9 and a concrete bottom slab 10, a rectangular steel plate 1.1 with an upper hole is pre-embedded in the concrete top slab 9, a rectangular steel plate 1.2 with a lower hole is pre-embedded in the concrete bottom slab 10, and a rectangular steel plate 1.2 with a lower hole is pre-embedded in the concrete bottom slab 10. The corresponding sides of the steel plate 1.1 and the lower rectangular steel plate 1.2 are respectively connected with an upper flange plate 3.1 and a lower flange plate 3.2, and the upper flange plate 3.1 and the lower flange plate 3.2 are along the concrete top plate 9 and the concrete bottom plate 10. Alternately arranged in the length direction, strip steel 2 connects adjacent rectangular steel plates 1.1 with upper openings and adjacent rectangular steel plates 1.2 with lower openings; one end of the truss-web steel pipe 4 is welded to the uppe...
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The invention relates to a steel truss web-concrete combined joint. The steel truss web-concrete combined joint is characterized in that perforated rectangular steel plates are pre-buried in a concrete top plate and a concrete bottom plate; on corresponding sides of the concrete top plate and the concrete bottom plate, flange plates are welded to the perforated rectangular steel plates of the concrete top plate and the concrete bottom plate and staggered along the length direction of the concrete top plate, two truss web steel pipes are welded to each flange plate in a herringbone way, and the flange plates on the concrete top plate and the flange plates on the concrete bottom plate are sequentially connected through the truss web steel pipes; the adjacent perforated rectangular steel plates or flange plates on the concrete top plate or the concrete bottom plate are connected through strip steel. Cooperation with adjacent joints for joint shear resistance can be realized, steel truss web rod and concrete integral shear resistance can be improved, a plate shaped stable structure can be formed, and convenience in hoisting and construction process simplification are realized.
Description
technical field [0001] The invention relates to a steel truss web-concrete composite joint, belonging to the field of steel truss web-concrete composite structures. Background technique [0002] The steel truss web-concrete composite girder bridge is a new type of steel-concrete composite structure bridge that has appeared in the past 30 years. In terms of structure, the concrete web in the traditional concrete box girder is replaced by the steel truss web, and the end of the steel truss web The nodes are directly embedded in the support of the concrete roof and floor, and the connection between the steel truss web and the concrete roof and floor is smoothly transmitted through the node structure. The structure is equipped with external and internal prestressed steel beams. [0003] The joint is an important part of the steel truss web-concrete composite girder bridge. The joint connection forms are various, and it is the key part of this type of bridge that needs to be stud...
Claims
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IPC IPC(8): E01D12/00
CPCE01D12/00
Inventor 万水徐杰郑涛张国清李志聪王朝杰王京力朱中华赵伟娟安风华蒋正文刘祁杰刘华琛
Owner SOUTHEAST UNIV