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Construction method of steel-clad concrete building piece

A construction method and concrete technology, applied to building components, buildings, manufacturing tools, etc., can solve the problems that are not conducive to the control of steel-clad beam section dimension accuracy, dust control, etc., to achieve easy control, protection of external corners, material Effects from a wide range of sources

Inactive Publication Date: 2018-08-17
CHINA CONSTR ELECTRIC POWER CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional method adopts the method of upright pouring of precast concrete flower basket beams. The upper surface and side of the cured precast concrete flower basket beams are perforated to plant reinforcements, and then the anchor reinforcements and the external steel plates are welded and fixed by perforation plug welding. This method is used for steel cladding construction. After the completion, it is not conducive to the control of the dimensional accuracy of the steel-clad beam section after the cladding, and has a negative impact on the protection of the external corner of the precast concrete flower basket beam and the control of dust.

Method used

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  • Construction method of steel-clad concrete building piece
  • Construction method of steel-clad concrete building piece
  • Construction method of steel-clad concrete building piece

Examples

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Effect test

Embodiment 1

[0033] see figure 1 As shown, the steel-clad beam of the prefabricated steel-clad concrete building part is illustrated by taking the flower basket beam as an example: for the cross-sectional shape of the flower basket beam, see figure 2 , including two ends and a middle section, one end and the middle section are connected through a right-angle transition, and the other end and the middle section are transitioned through a bevel, and the cladding steel structure 2 is located on the surface of the right-angle end and the middle section. Adopt the form of inverted welded prefabricated concrete flower basket beam covered with steel formwork, cooperate with the formwork support system 1 of the part not covered with steel, so that the surface of the precast concrete flower basket beam is poured upside down and formed by one-time pouring of steel, the specific steps are as follows:

[0034] Step 1: Upside-down welding of the upper surface and sides of the precast concrete flower b...

Embodiment 2

[0046] Prefabricated steel-clad concrete building parts and steel-clad beams are explained by taking the clad concrete cover slab as an example:

[0047] see Figure 5 As shown, the surface steel-clad structure 2 welded upside down is used as the finalized formwork for pouring the precast concrete cover, and the anchor bars 3 are preset inside the steel-clad structure, so that the precast concrete cover can be poured at one time. The specific steps are as follows:

[0048] Step 1: use the closed steel plate on the surface of the prefabricated concrete cover plate as the concrete pouring bottom form, and weld the anchor bar 3 on the surface steel plate;

[0049] Step 2: Open round holes 8 at the four corners of the steel plate on the surface;

[0050] Step 3: welding the angle steel frame 22 upside down on the surface steel plate 21;

[0051] Step 4: Preset the anchor bar 3 inside the angle steel frame around;

[0052] Step 5: Weld the surrounding angle steel frame and the s...

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Abstract

The invention discloses a construction method of a steel-clad concrete building piece. The construction method of the steel-clad concrete building piece is characterized by comprising the following steps of processing a steel-clad structure of the steel-clad concrete building piece; arranging anchor bars on the inner side of the steel-clad structure beforehand; and carrying out concrete pouring molding on the steel-clad structure with the anchor bars arranged beforehand. According to the construction method of the steel-clad concrete building piece, a manner of welding surface cladding steel of an inverted precast concrete beam is adopted, a surface steel-clad structure formed in a welding manner is used as a shaping formwork of precast concrete beam pouring, the anchor bars are arranged inside the steel-clad structure beforehand, a wood formwork supporting system of a non-steel-clad part is used in cooperation, and therefore, the precast concrete ledger beam with surface steel cladding is molded through one-time pouring in an inverted manner. With the construction method of the steel-clad concrete building piece, the situation that a precast concrete beam with surface steel cladding is difficult for construction in an upright manner is avoided, the dimensional accuracy of a beam section is easier to control, external corners are protected, and flying dust is less.

Description

technical field [0001] The invention relates to a construction method of a prefabricated concrete-clad steel building part, which belongs to the field of building construction. Background technique [0002] Yangjiang Nuclear Power Plant adopts CPR1000 technology, in which the conventional island lubricating oil room is a concrete frame structure, located in the northeast corner of the conventional island powerhouse, with a plane size of about 12m×21m. There are 9 prefabricated concrete secondary beams at the top of the lubricating oil room at an elevation of +16.2m, all of which are flower basket beams. In order to ensure its structural quality, safety, and better appearance to better serve the overall image and use requirements of the plant, the 9 prefabricated concrete flower basket beams are specially covered with steel. [0003] The traditional method adopts the method of upright pouring of precast concrete flower basket beams. The upper surface and side of the cured pr...

Claims

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Application Information

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IPC IPC(8): B28B1/14B28B23/02E04C3/293
CPCB28B1/14B28B23/02E04C3/293
Inventor 邓亮文郑捷金五一
Owner CHINA CONSTR ELECTRIC POWER CONSTR
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