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Reinforced concrete-fiber reinforce plastic (FRP) pipe confined seawater sea sand recycled concrete combination column

A technology of recycled concrete and reinforced concrete, which is applied to arch beams, bridge door beams, etc., can solve the problems of insufficient rigidity, low cracking load, and low elastic modulus of FRP concrete structure, achieve low construction operation difficulty, and improve bearing capacity. and ductility, the effect of simple steps and science

Inactive Publication Date: 2019-10-11
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

At present, FRP reinforced concrete and FRP tube-confined concrete composite structures have appeared. However, compared with ordinary steel, FRP materials have a lower elastic modulus and the stress-strain relationship is linearly elastic, which leads to insufficient rigidity of FRP concrete structures. , in the course of normal use, the cracking load is low, the crack is too wide and the deflection is too large, and brittle failure occurs

Method used

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  • Reinforced concrete-fiber reinforce plastic (FRP) pipe confined seawater sea sand recycled concrete combination column
  • Reinforced concrete-fiber reinforce plastic (FRP) pipe confined seawater sea sand recycled concrete combination column
  • Reinforced concrete-fiber reinforce plastic (FRP) pipe confined seawater sea sand recycled concrete combination column

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Embodiment Construction

[0018] Such as Figure 1 to Figure 3 The reinforced concrete-FRP tube restrained seawater and sea sand recycled concrete column is a new type of combined structure. According to the actual size of the column, a wooden mold is prepared, combined with the GFRP tube, and the steel cage is fixed between the two. Configure ordinary recycled concrete and seawater sea sand recycled concrete with required strength, pour seawater sea sand recycled concrete into GFRP pipe, and vibrate evenly with a vibrator, pour ordinary recycled concrete between wood mold and GFRP pipe, and use The vibrating rod vibrates evenly, and finally the component is maintained for a period of time and the wooden mold is removed to obtain a reinforced concrete-FRP tube-constrained seawater and sea-sand recycled concrete composite column.

[0019] The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned em...

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Abstract

The invention discloses a reinforced concrete-fiber reinforce plastic (FRP) pipe confined seawater sea sand recycled concrete combination column. A seawater sea sand recycled concrete and an FRP material are combined, and a reinforcing steel bar is configured into a common recycled concrete so as to be prevented from being corroded, so that the problem of low rigidity of the FRP pipe confined seawater sea sand recycled concrete column can be solved, the crack propagation is effectively suppressed, the ductility and a bearing capacity of the reinforced concrete-FRP pipe confined seawater sea sand recycled concrete combination column can be further improved, and the occurrence of brittle fracture is avoided.

Description

technical field [0001] The invention relates to a novel combined structure, which can be applied in the field of civil engineering. [0002] technical background [0003] With the rapid development of urban modernization, concrete is the most commonly used building material in engineering construction, and its production and consumption have been greatly increased. If things go on like this, it will inevitably lead to the shortage of natural coarse aggregate resources; on the other hand, the development of urban modernization in While bringing convenience to people, it also brings a large amount of construction waste. At present, the treatment of construction waste is mainly open-air stacking or landfill, etc. The comprehensive utilization rate of materials is less than 5%, and it has seriously affected the natural ecological environment. In the face of this situation and the promotion of low-carbon economy, recycling construction waste and producing recycled aggregate concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/46
CPCE04C3/46
Inventor 陈洁明
Owner GUANGDONG UNIV OF TECH
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