CN102767249A - Fiber-reinforced concrete externally-restricted buckling-restrained supporting component and manufacturing method thereof - Google Patents
Fiber-reinforced concrete externally-restricted buckling-restrained supporting component and manufacturing method thereof Download PDFInfo
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- CN102767249A CN102767249A CN2012102348301A CN201210234830A CN102767249A CN 102767249 A CN102767249 A CN 102767249A CN 2012102348301 A CN2012102348301 A CN 2012102348301A CN 201210234830 A CN201210234830 A CN 201210234830A CN 102767249 A CN102767249 A CN 102767249A
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Abstract
The invention discloses a fiber-reinforced concrete externally-restricted buckling-restrained supporting component and a manufacturing method thereof. The fiber-reinforced concrete externally-restricted buckling-restrained supporting component comprises a core-material supporting component and an externally-restricted component, wherein the externally-restricted component is sleeved at the periphery of the core-material supporting component, a non-cohesive material layer is arranged in a gap of the externally-restricted component and the core-material supporting component, and the externally-restricted component is made of a concrete externally-packaged fiber-reinforced material; when the fiber-reinforced concrete externally-restricted buckling-restrained supporting component is manufactured, firstly the non-cohesive material layer is arranged on the outer surface of the core-material supporting component; then concrete is poured in a supporting mould at the periphery of the core-material supporting component which is provided with the non-cohesive material layer; and after the poured concrete is cured, a template is dismantled, and the fiber-reinforced material is covered on the outer surface of the concrete. Therefore, the fiber-reinforced material is applied by the invention to replace traditional externally-restricted parts, such as a steel-pipe and shaped-steel combination and the like, so that the self-weight of the component and the antiseptic maintenance cost can be effectively lowered.
Description
Technical field
The present invention relates to engineering structures energy dissipation parts, refer in particular to the outer fibre reinforced concrete member that is constrained to that a kind of anti-flexing supports, belong to technical field of structural engineering.
The invention still further relates to the job practices of the outer constraining anti-buckling supporting member of a kind of fibre reinforced concrete.
Background technology
Anti-flexing supports mainly to be made up of steel core component (core), outer confining part (steel pipe, concrete etc.) and non-cohesive material.Its operating principle is: the responsive to axial force that braced structures is born under geological process is all born by the core of centre of support; This core is surrendered power consumption under axial tension and pressure effect; And concrete that pours in peripheral steel pipe and the sleeve pipe or mortar offer the crooked restriction of core, flexing when avoiding the core pressurized.
At present, the overcoat constraint element of curvature-prevention support component is form of structure such as steel pipe, shaped steel combination.But outer constraint element is steel, is exposed in the air to be prone to corrode, and it is stressed thereby influence.Event need be considered the antirust of outer constraint element.The antirust processing mode that cost is low, its durability is relatively poor; And effect rust-proofing method preferably, cost is higher.Simultaneously, the deadweight of member is bigger to the antidetonation stressing influence.Increase as the vault wind brace of arch bridge is conducted oneself with dignity significantly increases the seismic response that causes arch bridge.So in the seismic hardening of structure, the deadweight of strenthening member also need suitably be controlled.
Summary of the invention
The present invention is directed to the deficiency of prior art; Provide a kind of fibre reinforced concrete outer constraining anti-buckling supporting member; It is used fiber reinforced material and replaces outer constraint component such as traditional steel pipe, shaped steel combination, can alleviate the deadweight of member effectively and reduce anticorrosion maintenance cost.
For realizing above technical purpose, the present invention will take following technical scheme:
The outer constraining anti-buckling supporting member of a kind of fibre reinforced concrete; Comprise the core supporting member and be socketed in the peripheral outer confining part of core supporting member; In the gap of said outer confining part and core supporting member the non-cohesive material layer is set, said outer confining part adopts concrete outer wrapping fiber reinforcing material to process.
The concrete skeletal grain particle diameter of said concrete outer wrapping fiber reinforcing material is less than 1/2 of the minimum spacing of core supporting member outer rim and outer confining part external surface, and concrete is mortar or light aggregate concrete.
The section form of core supporting member is in-line, cross or I-shaped; Concrete outer rim section form is circular or rectangle.
Said non-cohesive material layer forms through the silica gel that is coated in core supporting member outside wall surface; Perhaps the non-cohesive material layer forms through the vulcanie sheet that is bonded in core supporting member outside wall surface.
The fiber reinforced material of said concrete outer wrapping fiber reinforcing material is carbon fiber or glass fiber.
Another technical purpose of the present invention provides the preparation method of the outer constraining anti-buckling supporting member of a kind of above-mentioned fibre reinforced concrete, and may further comprise the steps: (1) is provided with the non-cohesive material layer at the external surface of core supporting member; (2) at the peripheral formwork fluid concrete of the core supporting member that is provided with the non-cohesive material layer; (3) treat the concrete curing of step (2) cast after, the template of dismantling covers fiber reinforced material at concrete external surface and gets final product.
According to above technical scheme, corresponding to prior art, the present invention has following advantage:
The one, durability is better: the corrosion of the outer constraint of conventional steel can be effectively avoided in the application of fiber reinforced material, has endurance quality preferably.
The 2nd, be easy to change: after outer constraint is damaged, change, avoided the dismounting of the outer constraint of steel pipe than being easier to.
The 3rd, the deadweight that has alleviated member: carbon fiber sheet thickness is about 2mm, and it is very light to conduct oneself with dignity, the deadweight that can alleviate member.The application of light aggregate concrete is also filled outer constraint than traditional ordinary concrete and is alleviated deadweight.
Description of drawings
Fig. 1-the 1st, a kind of structural representation of the outer constraining anti-buckling supporting member of fibre reinforced concrete according to the invention;
Fig. 1-2 is the vertical view of Fig. 1-1;
Fig. 2 is second kind of structural representation of the outer constraining anti-buckling supporting member of fibre reinforced concrete according to the invention;
Fig. 3 is the third structural representation of the outer constraining anti-buckling supporting member of fibre reinforced concrete according to the invention;
Fig. 4 is the 4th a kind of structural representation of the outer constraining anti-buckling supporting member of fibre reinforced concrete according to the invention;
Wherein: fiber reinforced material outer 1; The outer restraint layer 2 of concrete; Core supporting member 3; Non-cohesive material layer 4.
The specific embodiment
Accompanying drawing discloses the structural representation of preferred embodiment involved in the present invention without limitation; Below will combine accompanying drawing that technical scheme of the present invention at length is described.
Shown in Fig. 1 to 4; The outer constraining anti-buckling supporting member of fibre reinforced concrete according to the invention; Comprise the core supporting member and be socketed in the peripheral outer confining part of core supporting member; In the gap of said outer confining part and core supporting member the non-cohesive material layer is set, said outer confining part is a concrete outer wrapping fiber reinforcing material.Said concrete skeletal grain particle diameter is less than 1/2 of the minimum spacing of core supporting member outer rim and fiber reinforced material outside wall surface, and the concrete type can be mortar, light aggregate concrete or other forms of concrete.The section form of core supporting member is in-line, cross or I-shaped; Concrete outer rim section form is circular or rectangle.Said non-cohesive material layer forms through the silica gel that is coated in core supporting member outside wall surface; Perhaps the non-cohesive material layer forms through the vulcanie sheet that is bonded in core supporting member outside wall surface.Said fiber reinforced material adopts the fiber reinforced material of carbon fiber, glass fiber and other types to be made.
During making, at first the external surface at the core supporting member covers thick silica gel or the vulcanie non-cohesive material of one deck 1-2mm, has propped up template then, builds fill concrete or mortar.Treat that concrete or mortar reach certain intensity, after the form removal fiber reinforced material layer is sticked on the concrete external surface and get final product.The multi-layer fiber reinforcing material can be used in the position that is prone to the generation flexing at member.
Claims (6)
1. the outer constraining anti-buckling supporting member of a fibre reinforced concrete; Comprise the core supporting member and be socketed in the peripheral outer confining part of core supporting member; In the gap of said outer confining part and core supporting member the non-cohesive material layer is set, it is characterized in that: said outer confining part adopts concrete outer wrapping fiber reinforcing material to process.
2. according to the outer constraining anti-buckling supporting member of the said fibre reinforced concrete of claim 1; It is characterized in that: the concrete skeletal grain particle diameter of said concrete outer wrapping fiber reinforcing material is less than 1/2 of the minimum spacing of core supporting member outer rim and outer confining part external surface, and concrete is mortar or light aggregate concrete.
3. according to the outer constraining anti-buckling supporting member of the said fibre reinforced concrete of claim 1, it is characterized in that: the section form of core supporting member is in-line, cross or I-shaped; Concrete outer rim section form is circular or rectangle.
4. according to the outer constraining anti-buckling supporting member of the said fibre reinforced concrete of claim 1, it is characterized in that: said non-cohesive material layer forms through the silica gel that is coated in core supporting member outside wall surface; Perhaps the non-cohesive material layer forms through the vulcanie sheet that is bonded in core supporting member outside wall surface.
5. according to the outer constraining anti-buckling supporting member of the said fibre reinforced concrete of claim 1, it is characterized in that: the fiber reinforced material of said concrete outer wrapping fiber reinforcing material is carbon fiber or glass fiber.
6. the preparation method of the outer constraining anti-buckling supporting member of the said fibre reinforced concrete of claim 1 is characterized in that may further comprise the steps: (1) is provided with the non-cohesive material layer at the external surface of core supporting member; (2) at the peripheral formwork fluid concrete of the core supporting member that is provided with the non-cohesive material layer; (3) treat the concrete curing of step (2) cast after, the template of dismantling covers fiber reinforced material at concrete external surface and gets final product.
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| CN2012102348301A CN102767249A (en) | 2012-07-06 | 2012-07-06 | Fiber-reinforced concrete externally-restricted buckling-restrained supporting component and manufacturing method thereof |
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| CN2012102348301A CN102767249A (en) | 2012-07-06 | 2012-07-06 | Fiber-reinforced concrete externally-restricted buckling-restrained supporting component and manufacturing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273663A (en) * | 2013-06-04 | 2013-09-04 | 南京工业大学 | Manufacturing method of maintenance-free steel-composite material buckling restrained brace |
| CN104032974A (en) * | 2014-05-13 | 2014-09-10 | 同济大学 | Method for reinforcing steel component and structure of reinforced steel component |
| CN104775539A (en) * | 2015-04-20 | 2015-07-15 | 中南林业科技大学 | Carbon fiber reinforced stirrup and steel plate hoop buckling-restrained energy-dissipation brace |
| CN104863283A (en) * | 2015-05-29 | 2015-08-26 | 重庆大学 | Steel tube fiber concrete support |
| CN104912220A (en) * | 2015-04-20 | 2015-09-16 | 中南林业科技大学 | Buckling-restrained energy-dissipated brace of carbon fiber reinforced cold-formed thin-wall square steel pipe |
| CN110208020A (en) * | 2019-05-19 | 2019-09-06 | 北京工业大学 | A kind of buckling-resistant support structure testing machine vibration absorber |
| CN112593977A (en) * | 2020-11-17 | 2021-04-02 | 中煤科工集团北京华宇工程有限公司 | Roadway support device |
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| CN101105053A (en) * | 2007-07-10 | 2008-01-16 | 中国建筑科学研究院 | Double-layer sleeve linear buckling restrained brace with transverse partition plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103273663A (en) * | 2013-06-04 | 2013-09-04 | 南京工业大学 | Manufacturing method of maintenance-free steel-composite material buckling restrained brace |
| CN103273663B (en) * | 2013-06-04 | 2015-07-15 | 南京工业大学 | Manufacturing method of maintenance-free steel-composite material buckling restrained brace |
| CN104032974A (en) * | 2014-05-13 | 2014-09-10 | 同济大学 | Method for reinforcing steel component and structure of reinforced steel component |
| CN104775539A (en) * | 2015-04-20 | 2015-07-15 | 中南林业科技大学 | Carbon fiber reinforced stirrup and steel plate hoop buckling-restrained energy-dissipation brace |
| CN104912220A (en) * | 2015-04-20 | 2015-09-16 | 中南林业科技大学 | Buckling-restrained energy-dissipated brace of carbon fiber reinforced cold-formed thin-wall square steel pipe |
| CN104775539B (en) * | 2015-04-20 | 2018-07-06 | 中南林业科技大学 | Fibre reinforced stirrup steel plate hoop buckling-restrained energy-dissipation |
| CN104863283A (en) * | 2015-05-29 | 2015-08-26 | 重庆大学 | Steel tube fiber concrete support |
| CN104863283B (en) * | 2015-05-29 | 2019-03-01 | 重庆大学 | Steel tube fiber concrete support |
| CN110208020A (en) * | 2019-05-19 | 2019-09-06 | 北京工业大学 | A kind of buckling-resistant support structure testing machine vibration absorber |
| CN112593977A (en) * | 2020-11-17 | 2021-04-02 | 中煤科工集团北京华宇工程有限公司 | Roadway support device |
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Application publication date: 20121107 |