Steel sheath type steel truss web node structure

A steel sheath and node technology, applied in bridge parts, bridges, buildings, etc., to achieve the effects of high bearing capacity and rigidity, simple operation and less welding

Active Publication Date: 2011-05-18
JSTI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no structural form of steel truss web j

Method used

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  • Steel sheath type steel truss web node structure
  • Steel sheath type steel truss web node structure
  • Steel sheath type steel truss web node structure

Examples

Experimental program
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Effect test

Embodiment 1

[0019] like figure 1 As shown, the steel sheath form truss web node structure, two truss web steel pipes 1, horizontal steel plate 2 and oblique steel sheath 3 are arranged at the node; the horizontal steel plate 2 is parallel to the top and bottom plates, and two truss web steel pipes 1 respectively into a diagonal steel sheath 3 on a horizontal steel plate. Fill epoxy mortar or high-flow cement mortar 7 between the inclined steel sheath 3 and the truss web steel pipe 1 to ensure compactness and adjust construction errors. The inner and outer sides 8 of the oblique steel sheath are roughened to reduce interface slippage. The truss-web steel pipes 1 embedded in the roof and floor concrete are set facing each other in a "herringbone" shape, and the intersections are respectively cut vertically, and the cut surfaces are respectively welded to the steel plate 4 for sealing. The steel plates 4 of the steel pipes are riveted together by ordinary bolts 5, so that the two truss we...

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PUM

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Abstract

The invention discloses a steel sheath type steel truss web node structure. Two truss web steel tubes, a horizontal steel plate and slant steel sheaths are arranged on a node; the horizontal steel plate is parallel to a top plate or a bottom plate; two elliptic holes are formed on the horizontal steel plate; two slant steel sheaths are inserted and welded in the elliptic holes; the two truss web steel tubes are inserted into the slant steel sheaths respectively in the traverse direction; the two truss web steel tubes are inserted into the slant steel sheaths respectively opposite to each other in a herringbone form; intersection parts are vertically cut respectively; cut surfaces are welded with steel plates respectively to be sealed; bolt holes and through reinforcement holes are reserved on the steel plates; and the steel plates of the two steel tubes are riveted together through common bolts to ensure that the two truss web steel tubes are integrated in the traverse direction.

Description

technical field [0001] The invention belongs to the field of civil structures, in particular to a joint structure of truss-web steel pipes and concrete used for steel truss-web composite box girder bridges. Background technique [0002] The steel truss web prestressed concrete composite girder bridge is a new type of composite structure bridge, which uses truss-type steel webs instead of the concrete webs in the concrete box girder, and the end nodes of the webs are directly embedded in the concrete wing plates , forming a combined structural system consisting of concrete roof, truss web steel pipe, concrete bottom plate, external and (or) internal prestressed steel beams working together. [0003] In my country, this type of bridge is still in its infancy, and there is a big gap between the design and research and the international ones. The joints of the truss-web steel pipe and concrete are one of the key parts of this type of bridge structure. At present, there is no s...

Claims

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Application Information

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IPC IPC(8): E01D19/00
Inventor 张建东翟存林张传刚梁新政陈扬
Owner JSTI GRP CO LTD
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