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Pretension prestress composite beam prefabricated component having gaps and corbels

A technology of prefabricated components and composite beams, applied in the direction of long strip structural components, building components, structural elements, etc. for load bearing

Active Publication Date: 2012-10-17
HUA HUI ENGINEERING DESIGN GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, although the top surface of the composite frame beam prefabricated component can be made to be equal to the bottom surface of the floor slab, the above-mentioned side formwork is omitted, but because the gap is too large, the composite frame beam prefabricated component cannot be equipped with full-length longitudinal prestressed reinforcement at the height of the gap , the steel bar can effectively bear the tensile stress formed on the upper surface of the prefabricated component after the full-length prestressed steel bars arranged in the lower part of the prefabricated component are stretched, and control the crack width of the upper concrete, which restricts the overall length of the lower part of the laminated frame beam Due to the number of prestressed steel bars, the composite frame beam prefabricated members have to increase the section height or width to meet the design requirements of the limit state of bearing capacity and the limit state of normal service

Method used

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  • Pretension prestress composite beam prefabricated component having gaps and corbels
  • Pretension prestress composite beam prefabricated component having gaps and corbels

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Embodiment Construction

[0024] Please refer to the attached figure 1 And attached figure 2 As shown, the present invention is a pre-tensioned prestressed composite beam prefabricated component with gaps and corbels, which includes a composite beam prefabricated component main body 1; on the composite beam prefabricated component main body 1 Several notches 2 are provided; a corbel 3 is provided at the bottom of each notch 2 .

[0025] Further, the main body part 1 of the composite beam prefabricated component is provided with a lower prestressed steel bar 11 , a waist bar 12 , an upper prestressed steel bar 13 , a stirrup 14 and a corbel embedded part 4 . Wherein, the lower prestressed steel bar 11 is a high-strength steel strand, and when the multi-layer lower prestressed steel bar 11 needs to be configured according to the calculation of the limit state of the bearing capacity, a plastic pipe 15 or Wrap plastic cloth 15 to form a free contraction section, the length of the plastic tube or plast...

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Abstract

The present invention relates to a pretension prestress composite beam prefabricated component having gaps and corbels. The pretension prestress composite beam prefabricated component comprises a composite beam prefabricated component main body portion, wherein a plurality of gaps are arranged on the composite beam prefabricated component main body portion, and the bottom of each gap is provided with a corbel. The pretension prestress composite beam prefabricated component having gaps and corbels in the present invention is applicable for a frame beam in a composite secondary beam shelved prefabricated integral casting system, and has characteristics of convenient construction, safe and reliable structure, effective transfer of carried construction load, and the like.

Description

technical field [0001] The invention relates to a building component, in particular to a pre-tensioned prestressed composite beam prefabricated component with gaps and corbels, belonging to the technical field of civil engineering. Background technique [0002] The prefabricated integrated reinforced concrete structure is assembled on the construction site by partially prefabricating structural components such as structural columns, beams, walls, and slabs in the factory, and then the connection nodes between the prefabricated components and the part of the cast-in-place structure are assembled. The formwork and steel bar binding process, and finally through the on-site pouring of concrete, make the prefabricated structural components, as well as the prefabricated structural components and the cast-in-place structure form a complete house structure. [0003] At present, there are two ways to connect the laminated secondary beam to the laminated frame beam. One is to directly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/294
Inventor 肖景平
Owner HUA HUI ENGINEERING DESIGN GROUP CO LTD
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