CN103924733B - A kind of injection steel pipe sea sand recycled concrete component - Google Patents

A kind of injection steel pipe sea sand recycled concrete component Download PDF

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Publication number
CN103924733B
CN103924733B CN201410087237.8A CN201410087237A CN103924733B CN 103924733 B CN103924733 B CN 103924733B CN 201410087237 A CN201410087237 A CN 201410087237A CN 103924733 B CN103924733 B CN 103924733B
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steel pipe
injection
sea sand
regeneration concrete
injection steel
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CN103924733A (en
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唐昀超
冯文贤
宝鼎晶
蔡阳
胡金木
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Guangzhou Urban Investment Housing Construction Engineering Co ltd
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Guangdong University of Technology
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Abstract

The present invention relates to a kind of injection steel pipe sea sand regeneration concrete post, including injection steel pipe, be filled with sea sand regeneration concrete in injection steel pipe, described injection steel pipe two ends are provided with end cap.Injection steel pipe includes steel pipe, plastic layer, and plastic layer is arranged on the inwall of steel pipe.Injection steel pipe internal-surface has good elastoplasticity and intensity, and antiseptic property.Directly apply to sea sand be molded in the regeneration concrete of steel pipe, without sea sand is processed, sea sand regeneration concrete is filled in described injection steel pipe formation injection steel tube regeneration concrete column, then steel pipe is sealed by the sealing lid of injection steel pipe two ends band plastic washer.Injection steel pipe provides clamping force for regeneration concrete so that combine closely between sea sand regeneration concrete;Additionally, anticorrosive coat elastoplasticity and intensity in injection steel pipe are good, bending and compressive strength is 3.5 times of common steel tube, can play anticorrosion buffer action, and injection steel pipe and regeneration concrete can be made again more to combine closely, and functional effect is more preferable.

Description

A kind of injection steel pipe sea sand recycled concrete component
Technical field
The present invention relates to a kind of injection steel pipe sea sand recycled concrete component, particularly relate to a kind of in fill out the injection steel pipe sea sand regeneration concrete post of sea sand regeneration concrete.
Background technology
China's industrialization and building manufacturing industry thereof are also in an extensive source material and the developmental stage of the big consumption of the energy, process of construction needs substantial amounts of fluvial sand, also create substantial amounts of building castoff simultaneously, how to utilize discarded concrete, improve its intensity so that renewable resource utilization, substitute fluvial sand with sea sand simultaneously, and carrying out the batch micro operations of industrialized building component, the always emphasis of people's research, steel tube regeneration concrete column is industrial and architectural have a wide range of applications.And because steel are corrosive by sea sand, often sea sand need to be carried out pre-treatment, reach the requirement of building function.Tradition wastes substantial amounts of human and material resources to the processing method of sea sand, with high costs.When the untreated original marine sand concrete of employing of the prior art forms steel core concrete column, for steel pipe corrosion-proof, FRP or river sand it is set between steel pipe inner wall and sea sand as sealing coat, then fills out sea sand.Although the method can directly use sea sand, with FRP structure isolation scheme, various cost is increased accordingly specially, and use fluvial sand isolation scheme, and steel pipe two ends need first to carry out filling and leading up processing with the measured river sand concrete of matter, then with bonding machine and technical staff, steel lid two ends are welded, various complex manufacturing technology, difficult quality controls, and easily make a small amount of sea, fluvial sand mix together, and steel pipe is formed corrosion, program intensity is the highest.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of injection steel pipe sea sand recycled concrete component.The present invention is effectively utilized sea sand, regeneration concrete, fully saves the energy and utilizes regenerated resources, can realize the strategic objective of green manufacturing and sustainable development.
The technical scheme is that the injection steel pipe sea sand regeneration concrete post of the present invention, including injection steel pipe, be filled with sea sand regeneration concrete in described injection steel pipe, described injection steel pipe two ends are provided with end cap.
Described injection steel pipe includes steel pipe, plastic layer, and plastic layer is arranged on the inwall of steel pipe.
Described sea sand regeneration concrete includes sea sand, fluvial sand, regeneration concrete, normal concrete, sea sand, fluvial sand, regeneration concrete, normal concrete mix homogeneously.
The invention has the beneficial effects as follows: the present invention lead to injection steel pipe in be filled with sea sand regeneration concrete, and injection steel pipe two ends are provided with end cap, wherein be molded steel pipe, end cap can realize the manufacture of building component of industrial mass, low cost, technique can realize standardization and simplification, quality controls well, and injection steel pipe internal-surface has good elastoplasticity and intensity, and antiseptic property.Directly apply to sea sand be molded in the regeneration concrete of steel pipe, without sea sand is processed, sea sand regeneration concrete is filled in described injection steel pipe formation injection steel tube regeneration concrete column, then steel pipe is sealed by the sealing lid of injection steel pipe two ends band plastic washer.So, on the one hand injection steel pipe provides clamping force for regeneration concrete so that combine closely between sea sand regeneration concrete;On the other hand, anticorrosive coat elastoplasticity and intensity in injection steel pipe are good, and bending and compressive strength is 3.5 times of common steel tube, both can play anticorrosion buffer action, and injection steel pipe and regeneration concrete can be made again more to combine closely, and functional effect is more preferable.The present invention is effectively utilized sea sand, regeneration concrete, fully saves the energy and renewable resource utilization, it is achieved green manufacturing and the strategic objective of sustainable development.The use of the sea sand regeneration concrete post of the injection built-in stiffener of steel pipe can directly substitute traditional steel pipe and armored concrete.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section that the present invention is molded steel pipe sea sand recycled concrete component,
Fig. 2 is the sealing cap assemblies intention that the present invention is molded steel pipe and band plastic washer thereof.
Detailed description of the invention
Below in conjunction with embodiment, the present invention done further detailed description, but embodiments of the present invention are not limited to this.
Embodiment:
The present invention is further described for 1 explanation and detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, below in conjunction with the accompanying drawings 1 explanation and detailed description of the invention the present invention is further described.
As it is shown in figure 1, injection steel pipe sea sand regeneration concrete post component, including injection steel pipe, being filled with sea sand regeneration concrete 4 in wherein said injection steel pipe, described injection steel pipe two ends are provided with end cap 5.
In the present embodiment, described injection steel pipe includes steel pipe 1, plastic layer 2, and plastic layer 2 is arranged on the inwall of steel pipe 1.
In the present embodiment, described end cap 5 is threadedly secured to be molded the two ends of steel pipe, or end cap 5 is fixed on the two ends of injection steel pipe by connector 6.In the present embodiment, described connector 6 is screw.
For further ensuring that sealing, described end cap 5 is also equiped with packing ring 7 with the contact surface of injection steel pipe.In the present embodiment, described plastic washer 7 is plastic washer.
In the present embodiment, described sea sand regeneration concrete 4 includes sea sand, fluvial sand, regeneration concrete, normal concrete, sea sand, fluvial sand, regeneration concrete, normal concrete mix homogeneously.It is will to make sea sand regeneration concrete without the chemically treated sea sand such as desalination and regeneration concrete, sea sand regeneration concrete is cast in inside and has in the injection steel pipe of corrosion-resistant coating that sea sand of the present invention is directly applied to be molded the method for steel tube regeneration concrete component.
In the present embodiment, described regeneration concrete refers to discarded concrete block after broken, cleaning, classification, mix with grating by a certain percentage, partly or entirely replace the natural aggregates (mainly coarse aggregate) such as sandstone, add the novel concrete that cement, water etc. are joined.Wherein, it is not necessary to sea sand is processed, sea sand regeneration concrete is filled in described injection steel pipe formation injection steel tube regeneration concrete column.In the present embodiment, using the regeneration concrete of 70%, the concrete of 30% is comprehensively configured to new mixed regeneration concrete.
In the present embodiment, for strengthening the intensity of steel pipe 1 further, the inwall of described steel pipe 1 is additionally provided with reinforcement steel wire 3.
The outer contour shape of described steel pipe 1 is circular and rectangle.In the present embodiment, the outer contour shape of steel pipe 1 is circular, described steel pipe 1 is placed in the tool, inner surface in the same cross section of steel pipe 1 close at the two of upper and lower end face, isogonism is installed and is strengthened steel wire 3, in the present embodiment, strengthening steel wire 3 is finer wire, then to steel pipe 1 inner surface to carrying out injection-moulded plastic layer 2, can be in case the plastic layer 2 of the chemical classes corrosion such as salt be injection molding melt and dissolved at steel pipe inner wall, it is formed with the plastic layer of steel wire, and form an entirety with steel pipe, i.e. it is molded steel pipe, this can be the highest with the injection steel pipe cost of industrialized mass, while improving intensity and plasticity, form a corrosion-resistant coating, directly can be filled with undressed original sea sand regeneration concrete post in injection steel pipe.
Additionally, for avoid the sea sand regeneration concrete 4 corrosion to steel pipe 1, described sea sand regeneration concrete 4 to be additionally added antirust agent.
The present invention is when making, inwall at steel pipe 1 is molded melt and dissolved plastic layer 2 and the short steel wire 3 for reinforced plastics Rotating fields near upper and lower position, is cast with, in being molded the hollow area that melt and dissolved plastic layer is surrounded, the sea sand regeneration concrete 4 that original undressed sea sand is made;Arrange sealing lid 8 at described injection steel pipe two ends, sealing lid 8 is ordinary carbon steel material.
The present invention is molded steel pipe and can produce in batches as requested manufacturer, the plastic layer about 0.5-1.4mm that steel pipe inner wall injection is melt and dissolved, steel pipe sizes is D × L × t(diameter × length × thickness), according to functional requirement, its physical dimension can be designed according to functional requirement.This application, desirable a size of=180 × 500 × 6mm, wherein the bottom sealing cap assemblies of a size of (diameter × length) 180mm × 5mm.
Built-in FRP steel stiffener of the present invention, can produce in batches as requested manufacturer.FRP shaped steel stiffener may be provided at the center of sea sand regeneration concrete.Improve the stress performance of steel pipe sea sand regeneration concrete.
After making injection steel pipe, to scene, sea sand regeneration concrete is directly cast in injection steel pipe.After concrete filled steel tube is poured into a mould, it may appear that the contraction in the range of error of about about 2mm, mortar at this moment can be used to polish after it solidifies, then with sealing cap assemblies, injection steel pipe two ends be carried out assembling sealing.
Injection steel pipe sea sand recycled concrete component is under the effect of axial compressive force, injection steel pipe provides hoop constraint effect to internal regeneration concrete, core concrete is made to be in the state of multiaspect pressurized, it is greatly improved its resistance to compression, rupture strength, raising resistance to corrosion, steel duct fills regeneration concrete, avoid steel pipe generation unstability, thus improve the overall mechanical property of component.
A kind of injection steel pipe sea sand recycled concrete component that the present invention provides, its advantage is:
1) with the fluvial sand of original sea sand alternate resources shortage, energy-conservation and economize on resources, cost reduces.
2) using regeneration concrete, together with sea sand, be fabricated to marine sand concrete, energy-conservation and economize on resources, cost reduces.
3) it is molded melt and dissolved plastic layer due to steel pipe inner wall, the uniform finer wire composition being arranged on plastic layer can improve plastic layer intensity effect, and core regeneration concrete is in injection steel pipe, the corrosion of steel pipe is restricted by a small amount of chemical analysis in the chloride ion of sea sand regeneration concrete and regeneration concrete etc., it is molded the application of steel pipe simultaneously, improves its resistance to compression, rupture strength, raising resistance to corrosion.
The chemical analysis injecting undressed original sea sand and discarded concrete in traditional steel pipe can make steel pipe corrosion product volumetric expansion cause concrete cracking, accelerates the corrosion of steel, causes reinforced concrete structure to be destroyed.Therefore, the plastic layer that inwall injection is melt and dissolved, and finer wire is installed, plastic layer improves with the laminating intensity of steel, is not easy to and comes off and deform.
4) the assembled sealing cap assemblies of plastic washer is arranged on steel pipe both ends of the surface and plays strict sealing function.The sealing cap assemblies structural advantages of plastic washer, standard component can be made as, to in-site installation, design and manufacture advantage and the advantage of processing cost is provided for batch micro operations building component, the elasticity of built-in plastic washer and plasticity, on the one hand play the cushioning effect of pressure distortion axial to steel pipe, on the other hand play antisepsis.Seal cap assemblies with traditional human weld to compare, decrease welding equipment and solder technologist, be also greatly reduced cost.
The injection steel pipe sealing cap assemblies of plastic washer is unlike ordinary reinforced concrete, the two ends of the concrete inner concrete in injection steel pipe are mounted with combination seal, inside is in an environment sealed, corrosion is limited, and the expansion of internal material also can have advantageous effect to the combination between steel pipe and core sea sand regeneration concrete.
5) injection steel pipe sea sand regeneration concrete is widely used, it is mainly used in compression member, such as single or multiple lift industrial premises pillar, send power transformation prefabricated components, high level or Super High civil buildings post etc., it is possible to be used as flexural member, such as the arch rib etc. in highway or Urban Bridge.
A kind of injection steel pipe sea sand regeneration concrete that the present invention provides is widely used, it is mainly used in compression member, such as single or multiple lift industrial premises pillar, send power transformation prefabricated components, high-rise civil building post etc., it is possible to be used as flexural member, such as the arch rib etc. in highway or Urban Bridge.

Claims (4)

1. an injection steel pipe sea sand regeneration concrete post component, including injection steel pipe, it is characterised in that being filled with sea sand regeneration concrete in described injection steel pipe, described injection steel pipe two ends are provided with end cap;Described injection steel pipe includes steel pipe, plastic layer, plastic layer is arranged on the inwall of steel pipe, the inwall of described steel pipe is additionally provided with reinforcement steel wire, described reinforcement steel wire isogonism be arranged on the inner surface in the same cross section of steel pipe close at the two of upper and lower end face, steel pipe internal-surface is carried out injection-moulded plastic layer, plastic layer is injection molding melt and dissolved at steel pipe inner wall, it is formed with the plastic layer strengthening steel wire, this plastic layer forms an entirety with steel pipe, i.e. it is molded steel pipe, after making injection steel pipe, sea sand regeneration concrete is directly cast in injection steel pipe, after concrete filled steel tube is poured into a mould, mortar is used to polish after it solidifies, with end cap, injection steel pipe two ends are carried out assembling again to seal, described end cap by screw thread or by connector be fixed on injection steel pipe two ends, described end cap is also equiped with plastic washer with the contact surface of injection steel pipe.
Injection steel pipe sea sand regeneration concrete post component the most according to claim 1, it is characterised in that: the outer contour shape of described injection steel pipe is circular or rectangle.
Injection steel pipe sea sand regeneration concrete post component the most according to claim 1, it is characterized in that described sea sand regeneration concrete includes sea sand, fluvial sand, regeneration concrete, normal concrete, sea sand, fluvial sand, regeneration concrete, normal concrete mix homogeneously.
Injection steel pipe sea sand regeneration concrete post component the most according to claim 1, it is characterised in that: described sea sand regeneration concrete has been additionally added antirust agent.
CN201410087237.8A 2014-03-11 2014-03-11 A kind of injection steel pipe sea sand recycled concrete component Active CN103924733B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763094A (en) * 2015-04-03 2015-07-08 山东科技大学 Sea sand recycled concrete member for hollow double-skin steel pipe
CN107514095A (en) * 2017-09-21 2017-12-26 华侨大学 A kind of steel PVC multiple tubes marine sand concrete coupled column

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Publication number Priority date Publication date Assignee Title
CN201649285U (en) * 2010-02-02 2010-11-24 哈尔滨工业大学深圳研究生院 FRP sectional steel sea-sand concrete component
CN202370171U (en) * 2011-08-05 2012-08-08 哈尔滨工业大学深圳研究生院 Steel pipe concrete column filled with marine sand concrete
CN103388377A (en) * 2013-08-07 2013-11-13 清华大学 Novel FRP (fiber reinforced plastic)-steel tube-epoxy resin-sea sand concrete compression member
CN203905295U (en) * 2014-03-11 2014-10-29 广东工业大学 Sea-sand recycled concrete component provided with injection-molded steel pipe

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN201649285U (en) * 2010-02-02 2010-11-24 哈尔滨工业大学深圳研究生院 FRP sectional steel sea-sand concrete component
CN202370171U (en) * 2011-08-05 2012-08-08 哈尔滨工业大学深圳研究生院 Steel pipe concrete column filled with marine sand concrete
CN103388377A (en) * 2013-08-07 2013-11-13 清华大学 Novel FRP (fiber reinforced plastic)-steel tube-epoxy resin-sea sand concrete compression member
CN203905295U (en) * 2014-03-11 2014-10-29 广东工业大学 Sea-sand recycled concrete component provided with injection-molded steel pipe

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Effective date of registration: 20230216

Address after: 510280 9/F, 2/F, 1/2, No. 2, Ligang Road, Haizhu District, Guangzhou City, Guangdong Province

Patentee after: Guangzhou Urban Investment Housing Construction Engineering Co.,Ltd.

Address before: 510006 No. 100 West Ring Road, Guangzhou University, Guangzhou, Guangdong, Panyu District

Patentee before: GUANGDONG University OF TECHNOLOGY