Fiber cloth outside steel pipe inner filling coral concrete combined structural column

Abstract

The invention discloses a fiber cloth outside steel pipe inner filling coral concrete combined structural column, which is realized through the following technical scheme that the fiber cloth outside steel pipe inner filling coral concrete combined structural column consists of fiber cloth, a steel pipe and coral concrete, wherein the fiber cloth is wound outside the steel pipe; the steel pipe is filled with the coral concrete. Through the restriction by a round pipe, the intensity of the coral concrete is improved; through the sealing by an outer pipe, the durability of the coral concrete is enhanced; through FRP (fiber reinforced plastic) external dressing, the anti-corrosion performance of the steel pipe is enhanced; through an inner liner of the steel pipe, the defect of fragility of an FRP material is overcome.

Description

technical field [0001] The invention relates to a novel steel-concrete composite structural member, which belongs to the technical field of structural engineering. Background technique [0002] Using coral reefs and sand to prepare coral concrete is an inevitable choice for offshore island and reef engineering construction. Although my country has successfully applied coral concrete to roads, revetments and breakwaters, etc., it has been found in public literature and research results that the strength grade of concrete using coral aggregate is generally lower than the C30 strength grade, so coral aggregate concrete has not yet been used. For structural load-bearing members to achieve structural applications. Of course, whether the structural application of coral concrete is feasible or not, the following key issues need to be resolved urgently: First, due to the limitation of the strength of coral aggregates, it is difficult for concrete to achieve a high strength level; T...

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Problems solved by technology

Of course, whether the structural application of coral concrete is feasible or not, the following key issues need to be resolved urgently: First, due to the limitation of the strength of coral aggregates, it is difficult for concrete to achieve a high strength level; The durability of concrete; the third is that there are a lot of chloride ions in the coral concrete mixed with sea water, which is very easy to corrode the steel in the components; The driving time limit is urgent, and it is difficult to adopt formwork pouring and conventional maintenance technology for construction

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