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Carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks

A cast-in-situ floor slab and processing method technology, applied in building maintenance, industrial buildings, construction and other directions, can solve the problems of uneven floor, increased floor weight, long operation time, etc., to achieve low maintenance costs, improve integrity, prevent The effect of continuing to expand

Inactive Publication Date: 2013-12-25
郑州长发网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a cast-in-place reinforcement method aimed at the problems of long on-site wet operation time, large dust, uneven floor, increased floor weight, affecting the use of the factory building, and sticking steel plates that will not change with the shape of the surface of the structure in the above existing reinforcement methods. The carbon fiber cloth through-wall reinforcement technology for the cracks on the top of the beam can effectively improve the flexural bearing capacity of the floor on the top of the beam and reduce the deformation of the floor, prevent the expansion of cracks, and meet the continuous load and use requirements of the plant structure

Method used

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  • Carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks
  • Carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks
  • Carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as Figure 1-Figure 3 As shown, a carbon fiber cloth through-wall reinforcement treatment method for cracks on the top of cast-in-place floor slabs includes the following steps:

[0025] (1), dig a hole 5 at the bottom of the brick wall 1 on the top of the slab, the height of the hole 5 is 53mm, and the width is 200mm. According to the stress situation of the cast-in-place floor 4, the spacing of the holes is selected, and a hole is generally drawn every 300mm;

[0026] (2) Use epoxy resin grout to pressure grout the cracks. After grouting, use epoxy resin cement to smooth and seal the grouting mouth, and perform surface treatment after sealing;

[0027] (3) Use a grinding wheel to grind and clean the surface of the floor where the carbon fiber cloth is pasted;

[0028] (4) Brush epoxy resin adhesive on the position where the carbon fiber cloth is pasted;

[0029] (5), paste carbon fiber cloth 2 on the epoxy resin adhesive, the width of carbon fiber cloth is 200m...

Embodiment 2

[0033] Such as Figure 1-Figure 3 As shown, a carbon fiber cloth through-wall reinforcement treatment method for cracks on the top of cast-in-place floor slabs includes the following steps:

[0034] (1) Hole 5 is cut at the bottom of brick wall 1 on the top of the slab. The height of hole 5 is 53mm and the width is 200mm. According to the force of cast-in-place floor 4, the distance between holes is selected, and a hole is usually cut every 300mm;

[0035] (2) Use epoxy resin grout to pressure grout the cracks. After grouting, use epoxy resin cement to smooth and seal the grouting mouth, and perform surface treatment after sealing;

[0036] (3) Use a grinding wheel to grind and clean the surface of the floor where the carbon fiber cloth is pasted;

[0037] (4) Brush epoxy resin adhesive on the position where the carbon fiber cloth is pasted;

[0038] (5) Paste the carbon fiber cloth 2 on the epoxy resin adhesive, the width of the carbon fiber cloth is 200mm, and the thicknes...

Embodiment 3

[0042] Such as Figure 1-Figure 3 As shown, a carbon fiber cloth through-wall reinforcement treatment method for cracks on the top of cast-in-place floor slabs includes the following steps:

[0043] (1) Hole 5 is cut at the bottom of brick wall 1 on the top of the slab. The height of hole 5 is 53mm and the width is 200mm. According to the force of cast-in-place floor 4, the distance between holes is selected, and a hole is usually cut every 300mm;

[0044] (2) Use epoxy resin grout to pressure grout the cracks. After grouting, use epoxy resin cement to smooth and seal the grouting mouth, and perform surface treatment after sealing;

[0045] (3) Use a grinding wheel to grind and clean the surface of the floor where the carbon fiber cloth is pasted;

[0046] (4) Brush epoxy resin adhesive on the position where the carbon fiber cloth is pasted;

[0047] (5) Paste the carbon fiber cloth 2 on the epoxy resin adhesive, the width of the carbon fiber cloth is 200mm, and the thicknes...

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Abstract

The invention relates to a carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks. The method includes the steps: (1) perforating the bottom of a roof brick wall; (2) performing pressure grouting on the cracks with epoxy resin grout, after grouting, trowelling and sealing positions of grout nipples with epoxy resin plaster, and performing surface treatment after sealing; (3) polishing and cleaning the floor surface at the positions for adhering carbon fiber sheets by a grinding wheel; (4) brushing the positions for adhering the carbon fiber sheets with epoxy resin binders; (5) adhering the carbon fiber sheets to the epoxy resin binders; (6) adhering carbon fiber sheet pressing strips to two ends of each carbon fiber sheet; (7) restoring a floor. The method has the advantages that pressure grouting treatment is adopted at the cracks to adhere floors on two sides of each crack together again, so that integrity of the floor and the structure is improved; due to through-wall adherence of the carbon fiber sheets, continuity, adhering, anchoring and direct tension of the carbon fiber sheets are guaranteed; the pressing strips are arranged at the ends of the carbon fiber sheets, so that combined action of the carbon fiber sheets is guaranteed.

Description

technical field [0001] The invention relates to the field of construction, in particular to a method for reinforcing cracks on top of beams of cast-in-place floor slabs through walls with carbon fiber cloth. Background technique [0002] Most multi-storey industrial buildings adopt cast-in-place reinforced concrete beam-slab structure. The floor slab at the top of the beam often has cracks along the length of the beam due to insufficient bending resistance, which affects the performance and structural safety of the factory building. Certain reinforcement measures are required. deal with. [0003] At present, the enlarging section method and the bonded steel reinforcement method are commonly used for reinforcement. These two methods have the following problems. [0004] 1) Enlarging cross-section reinforcement method: This reinforcement method takes a long time for wet construction on site and has a large amount of dust, which has a certain impact on normal production; and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04H5/02
Inventor 孙增寿
Owner 郑州长发网络科技有限公司
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