CN104746494A - Hollow interlining FRP-steel tube sea sand recycled concrete member - Google Patents
Hollow interlining FRP-steel tube sea sand recycled concrete member Download PDFInfo
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- CN104746494A CN104746494A CN201510156412.9A CN201510156412A CN104746494A CN 104746494 A CN104746494 A CN 104746494A CN 201510156412 A CN201510156412 A CN 201510156412A CN 104746494 A CN104746494 A CN 104746494A
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- steel pipe
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- sea sand
- recycled concrete
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Abstract
The invention belongs to the field of engineering structures and particularly relates to a hollow interlining FRP-steel tube sea sand recycled concrete member. According to the hollow interlining FRP-steel tube sea sand recycled concrete member, the outer surface of an outer steel tube is coated with an FRP material layer in a pasting mode, and sea sand recycled concrete is filled between the inner surface of the outer steel tube and the outer surface of an inner steel tube. By the adoption of a hollow interlining section form, the axle load bearing capacity of the hollow interlining FRP-steel tube sea sand recycled concrete member is not lower than that of solid steel tube concrete, and the flexural capacity and the fire-resistant and high temperature-resistant performance are further improved; the outer surface of the outer steel tube is coated with the FRP material layer in a pasting mode, so that the corrosion to the steel tube from external environment of corrosion areas such as coastal areas and offshore areas is avoided; the sea sand recycled concrete is filled into the steel tubes, so that the bearing capacity and the deformability of the concrete are improved, the potential safety hazard of the sea sand is lowered, and the combination function is fully played. The FRP-steel tube sea sand recycled concrete member promotes the application of the sea sand recycled concrete, energy sources are fully saved, the renewable resources are fully used, and the good social benefits and economic benefits are achieved.
Description
Technical field
Patent of the present invention belongs to engineering structures field, a kind of novel hollow sandwich FRP-steel pipe sea of specific design sand recycled concrete component.
Background technology
Along with engineering construction amount constantly increases, cause exhaustive exploitation and the use of building sand, stone, cause river sand and rubble, cobble resource day by day deficient, not only make the deterioration of the ecological environment, and occurred critical shortage.And adopt extra large sand regenerated coarse aggregate concrete to be a kind of approach of dealing with problems well.Sea sand regenerated coarse aggregate concrete is replaced by the part in concrete/all natural coarse aggregate regenerated coarse aggregate, and fines part/all replace with extra large sand, be called for short extra large sand regeneration concrete.As a kind of new green environment protection constructional materials, extra large sand regeneration concrete has vast potential for future development and application value, is but extensively promoted, and main cause is exactly be the CL containing meeting corrosion steel in extra large sand regeneration concrete
-the material initial imperfection that (chlorion) and regenerated coarse aggregate bring, make its mechanical property and endurance quality comparatively ordinary concrete decline to some extent.And adopt steel pipe sea sand recycled concrete component to be a kind of approach effectively overcome the above problems, outside tubing internal portion core concrete provides constraint and goes along with sb. to guard him, core concrete to support to tubing, both compensate for the mechanical property that extra large sand regeneration concrete is poor, had inhibit again the CL in extra large sand
-to the corrosion retraining tubing and inner reinforcing bar, give full play to compound action.But anti-bending bearing capacity and fire-resistant, the resistant to elevated temperatures performance of common solid steel pipe sea sand regeneration concrete await further raising.In addition, in coastal area or ocean structure engineering, directly use steel pipe sea sand recycled concrete component, external environment condition also can be made to form corrosion to component, affect bearing capacity and the durability of component/structure.
Summary of the invention
In order to solve the problem in the middle of existing reality, patent of the present invention provides a kind of hollow sandwich FRP-steel pipe sea sand recycled concrete component that may be used for coastal, that air pollution is regional mechanical durability can be good.It can effectively utilize regenerated coarse aggregate and sea sand resources, reduces the consumption of common sandstone, realizes the Green Development of civil engineering.
The technical problem that this project will solve: overcome the anti-bending strength of solid steel pipe sea sand regeneration concrete and the poor performance of fireproof high-temperature resistant, and solving its perishable performance in coastal region and ocean structure engineering, patent of the present invention provides a kind of hollow sandwich FRP-steel pipe sea sand recycled concrete component.This component not only has good bending resistance and fireproof high-temperature resistant performance, and overcomes the defect being easy to corrode.
The technical scheme that patent of the present invention adopts is: placed with one heart by two-layer steel pipe, fills extra large sand regeneration concrete being positioned at the interbedded space of two-layer steel pipe simultaneously, and the FRP of the coated stickup of the external surface of steel pipe outside material layer.
The cross sectional shape of described outer steel pipe can adopt circle, square, rectangle.
The cross sectional shape of described interior steel pipe can adopt circle, square, rectangle.
Described steel pipe steel are welding, clod wash or stainless steel tube.
Described extra large sand regeneration concrete comprises regenerated coarse aggregate concrete (regeneration concrete), extra large sand, river sand, ordinary concrete, the mixing of extra large sand, river sand, regenerated coarse aggregate concrete (regeneration concrete), ordinary concrete.
Described FRP material layer is CFRP(fibre reinforced composite plastic), GFRP(glass fiber reinforced composite plastics), AFRP(aramid fiber strengthen composite plastic), BFRP(basalt fibre strengthen composite plastic), the mixing of CFRP, GFRP, AFRP, BFRP.
The beneficial effect of patent of the present invention is: by the outer outer surface of steel tube coated stickup FRP material of hollow sandwich FRP-steel pipe sea sand regeneration concrete, under effectively can preventing coastal area or marine environment, external condition is to the corrosion of steel pipe, improves the service behaviour of structure.And adopting the form of structure of the two steel pipe of hollow, its axial carrying capacity is not less than single solid steel pipe concrete and can improves the bending resistance of component, and fireproof high-temperature resistant performance improves further.Meanwhile, length of load bearing material is not only by inside and outside steel pipe, and as template during construction, can save building costs.Filled between inside and outside steel pipe by extra large sand regeneration concrete, steel pipe provides constraint to concrete, and its strength and deformation ability is heightened; Meanwhile, concrete also provides support steel pipe, and to prevent its too early flexing, the two is supported mutually, has given full play to the advantage of combining structure.In addition, owing to corroding the chlorion of steel containing being easy in extra large sand, but under the effect of steel tube confinement, it is very little to the etching extent of steel, reduces the potential safety hazard of extra large sand regeneration concrete.Patent of the present invention effectively make use of extra large sand, regeneration concrete, abundant energy conservation and renewable resource utilization, is used for by this component, in coastal or ocean structure engineering, having good Social benefit and economic benefit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, patent of the present invention is further illustrated.
Fig. 1 to Fig. 9 is the plane section figure of rectangular hollow sandwich FRP-steel pipe sea sand regeneration concrete in square in rectangular, outer rectangular inner circle in square in cylindrical inner circle, cylindrical, cylindrical, outer rectangular interior pros, outer rectangular interior rectangular, outer square inner circle, outer pros, outer pros respectively.
Figure 10 is the schematic perspective view of Fig. 1.
Label in figure: 1-FRP material layer, the outer steel pipe of 2-, 3-sea sand regeneration concrete, steel pipe in 4-.
Detailed description of the invention
Patent of the present invention provides a kind of Novel hollow interlayer FRP-steel pipe sea sand recycled concrete component, is described further patent detailed description of the invention of the present invention below in conjunction with accompanying drawing.
The structure of this component is: at the external surface of steel pipe 2 coated bonding FRP material layer 1, the area filling sea sand regeneration concrete 3 between steel pipe 2 inner surface and steel pipe 4 external surface.FRP material layer 1 can adopt the mixing of CFRP, GFRP, AFRP, BFRP or CFRP, GFRP, AFRP, BFRP.Steel pipe 2 can adopt circle, square or rectangular with the cross section of steel pipe 4.Steel pipe 2 and steel pipe 4 can adopt seamless, weld or stainless steel tube.Sea sand regeneration concrete 3 comprises regenerated coarse aggregate concrete, extra large sand, river sand, ordinary concrete, and extra large sand, river sand, regenerated coarse aggregate concrete, ordinary concrete mix.
Due to the coated FRP material layer 1 of steel pipe 2 external surface, avoid steel pipe 2 directly to contact with external environment, significantly improve its durability; Steel pipe 2 and steel pipe 4, make extra large sand regeneration concrete 3 and isolation, greatly reduce the corrosiveness of steel pipe, reduce the hidden danger of extra large sand regeneration concrete 3, facilitate the application of extra large sand regeneration concrete simultaneously.The hollow section form be simultaneously made up of with extra large sand regeneration concrete steel pipe 2, steel pipe 4 also substantially increases anti-bending bearing capacity, is conducive to reinforcement fireproof high-temperature resistant performance.This component application is waited area in coastal, the effect such as axial compression and moment of flexure can be born simultaneously, there is good economy and environment benefit.
Claims (6)
1. a hollow sandwich FRP-steel pipe sea sand recycled concrete component, it is characterized in that at the external surface of steel pipe 2 coated stickup FRP material layer 1, and extra large sand regeneration concrete is filled between steel pipe 2 inner surface and steel pipe 4 external surface, the part that steel pipe 4 inner surface comprises is hollow.
2. hollow sandwich FRP-steel pipe sea according to claim 1 sand recycled concrete component, is characterized in that the cross-sectional form that steel pipe 2 adopts is circular, square or rectangular.
3. hollow sandwich FRP-steel pipe sea according to claim 1 sand recycled concrete component, is characterized in that the cross-sectional form that steel pipe 4 adopts is circular, square or rectangular.
4. hollow sandwich FRP-steel pipe according to claim 1 sea sand recycled concrete component, it is characterized in that steel pipe 2 and steel pipe 4 for welding, seamless or stainless steel tube.
5. hollow sandwich FRP-steel pipe sea according to claim 1 sand recycled concrete component, it comprises regenerated coarse aggregate concrete (regeneration concrete), extra large sand, river sand, ordinary concrete to it is characterized in that described extra large sand regeneration concrete, the mixing of regenerated coarse aggregate concrete (regeneration concrete), extra large sand, river sand, ordinary concrete.
6. hollow sandwich FRP-steel pipe sea according to claim 1 sand recycled concrete component, its feature is the mixing of CFRP, GFRP, AFRP, BFRP, CFRP, GFRP, AFRP, BFRP in FRP material layer 1 form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156412.9A CN104746494A (en) | 2015-04-03 | 2015-04-03 | Hollow interlining FRP-steel tube sea sand recycled concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156412.9A CN104746494A (en) | 2015-04-03 | 2015-04-03 | Hollow interlining FRP-steel tube sea sand recycled concrete member |
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| CN104746494A true CN104746494A (en) | 2015-07-01 |
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| CN201510156412.9A Pending CN104746494A (en) | 2015-04-03 | 2015-04-03 | Hollow interlining FRP-steel tube sea sand recycled concrete member |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297708A (en) * | 2015-10-19 | 2016-02-03 | 广西大学 | Compound recycled concrete pile of carbon fibers and steel tube |
| CN106193285A (en) * | 2016-06-22 | 2016-12-07 | 温州大学 | A kind of sea sand renewable hybrid concrete component |
| CN106284844A (en) * | 2016-10-13 | 2017-01-04 | 沈阳建筑大学 | A kind of concrete-filled double skin steel tube superposed column and preparation method thereof |
| CN108360744A (en) * | 2018-02-11 | 2018-08-03 | 广东工业大学 | A kind of structural column |
| CN110318496A (en) * | 2019-07-15 | 2019-10-11 | 哈尔滨工业大学 | A kind of sandwich pipe concrete combined member of assembled strut prestressing force |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201785751U (en) * | 2010-07-15 | 2011-04-06 | 南京工业大学 | Double-tube reinforced composite material combined pile |
| CN202248269U (en) * | 2011-10-13 | 2012-05-30 | 南京林业大学 | Hollow combination of fiber-steel composite pipe and concrete |
| JP2013083071A (en) * | 2011-10-07 | 2013-05-09 | Nippon Steel & Sumitomo Metal | Double pipe structure using spiral pipe |
| CN203034351U (en) * | 2012-11-20 | 2013-07-03 | 福州大学 | Round-end-shaped hollow steel pipe concrete column |
| CN103572894A (en) * | 2013-10-17 | 2014-02-12 | 清华大学 | Occlusion light combination column |
| 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 |
| CN203905299U (en) * | 2014-03-10 | 2014-10-29 | 中南大学 | Hollow stainless steel tube, steel wire net tube and carbon steel tube combination column adopting recycled concrete |
| CN205024660U (en) * | 2015-04-03 | 2016-02-10 | 山东科技大学 | Cavity intermediate layer FRP - steel pipe sea sand recycled concrete component |
-
2015
- 2015-04-03 CN CN201510156412.9A patent/CN104746494A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201785751U (en) * | 2010-07-15 | 2011-04-06 | 南京工业大学 | Double-tube reinforced composite material combined pile |
| JP2013083071A (en) * | 2011-10-07 | 2013-05-09 | Nippon Steel & Sumitomo Metal | Double pipe structure using spiral pipe |
| CN202248269U (en) * | 2011-10-13 | 2012-05-30 | 南京林业大学 | Hollow combination of fiber-steel composite pipe and concrete |
| CN203034351U (en) * | 2012-11-20 | 2013-07-03 | 福州大学 | Round-end-shaped hollow steel pipe concrete column |
| CN103572894A (en) * | 2013-10-17 | 2014-02-12 | 清华大学 | Occlusion light combination column |
| CN203905299U (en) * | 2014-03-10 | 2014-10-29 | 中南大学 | Hollow stainless steel tube, steel wire net tube and carbon steel tube combination column adopting recycled concrete |
| 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 |
| CN205024660U (en) * | 2015-04-03 | 2016-02-10 | 山东科技大学 | Cavity intermediate layer FRP - steel pipe sea sand recycled concrete component |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297708A (en) * | 2015-10-19 | 2016-02-03 | 广西大学 | Compound recycled concrete pile of carbon fibers and steel tube |
| CN106193285A (en) * | 2016-06-22 | 2016-12-07 | 温州大学 | A kind of sea sand renewable hybrid concrete component |
| CN106284844A (en) * | 2016-10-13 | 2017-01-04 | 沈阳建筑大学 | A kind of concrete-filled double skin steel tube superposed column and preparation method thereof |
| CN108360744A (en) * | 2018-02-11 | 2018-08-03 | 广东工业大学 | A kind of structural column |
| CN110318496A (en) * | 2019-07-15 | 2019-10-11 | 哈尔滨工业大学 | A kind of sandwich pipe concrete combined member of assembled strut prestressing force |
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