Steel-concrete folding plate combined beam

A reinforced concrete slab and concrete technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of complex construction procedures and structures, slow construction speed, etc. Effect

Inactive Publication Date: 2005-03-02
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Steel-concrete composite beams make full use of the characteristics of good tensile properties of steel and concrete in compression, but o

Method used

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  • Steel-concrete folding plate combined beam
  • Steel-concrete folding plate combined beam
  • Steel-concrete folding plate combined beam

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Embodiment Construction

[0015] The invention provides a steel-concrete laminated slab composite beam. The laminated slab composite beam is welded on the steel beam 1 with shear connectors (bolts or channel steel) 2, and the solid reinforced concrete or hollow reinforced concrete prefabricated slab 3 is horizontally placed on the steel beam 1 (I-shaped steel beam or box-shaped steel beam) ) on the upper flange of the slab, which not only bears the construction load, but also bears the vertical load as a part of the floor; the beard tendons 4 protruding from the end of the prefabricated slab cross each other, and at least 1 / 3 of them are welded to each other to play the role of longitudinal shear resistance. function; the top surface of the prefabricated slab 3 is roughened, and the shear structural reinforcement 5 can also be arranged in the prefabricated slab to increase the connection performance with the post-cast concrete 6; Seat negative moment reinforcement. The prefabricated slab and cast-in-p...

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Abstract

The present invention discloses one kind of combined beam of laminated steel-concrete plate for highway bridge and building as support member of bridge and building. Shear resistant connecting parts are welded to steel beam, prefabricated solid or hollow reinforced concrete boards are set on the steel beam, the steel bar tails are crossed and welded together, and the post-deposited concrete is deposited to form the combined beam. The combined beam has the advantages similar to those of in-situ deposited combined beam as well as saving in formwork and formwork supported step, simple prefabricated board structure, fast construction speed, etc. The present invention has wide application foreground in bridge structure and building structure fields.

Description

technical field [0001] The invention belongs to the scope of building support components for bridges and buildings, in particular to a steel-concrete laminated plate composite beam used in highway bridges and industrial and civil building floor systems. Background technique [0002] Existing reinforced concrete beams are load-bearing members composed of steel bars and concrete, with volume and self-heavy weight. Composite beams can reduce the structural height and self-weight by combining steel beams and concrete to jointly bear the force, thereby reducing the section size and foundation load of vertical load-bearing members. Compared with steel beams, it can reduce the amount of steel used, increase the rigidity, reduce the height of the structure, and enhance the corrosion resistance and durability. Steel-concrete composite beams make full use of the characteristics of steel tensile strength and concrete compression resistance, but ordinary steel-concrete composite beams ...

Claims

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Application Information

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IPC IPC(8): E01D19/00E04C3/293
Inventor 聂建国
Owner TSINGHUA UNIV
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