CN102296753A - Hollow column member with built-in high tensile steel bars and pipes for confinement of ultra high performance concrete - Google Patents
Hollow column member with built-in high tensile steel bars and pipes for confinement of ultra high performance concrete Download PDFInfo
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- CN102296753A CN102296753A CN201110166642A CN201110166642A CN102296753A CN 102296753 A CN102296753 A CN 102296753A CN 201110166642 A CN201110166642 A CN 201110166642A CN 201110166642 A CN201110166642 A CN 201110166642A CN 102296753 A CN102296753 A CN 102296753A
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Abstract
The invention provides a hollow column member with built-in high tensile steel bars and pipes for a confinement of ultra high performance concrete, especially being suitable for the field of pier column member of high rise, heavy load and longspan structures. The member comprises a reinforcement cage consisting of outer steel pipes, longitudinal high tensile steel bars and stirrups, and hollow ultra high performance concrete poured on the internal surface of the outer steel pipes wrapping the reinforcement cage. The invention fully utilizes the advantages of the ultra high performance concrete, the high tensile steel bars, and the hoop confinement of the outer steel pipes, effectively reduces the cross section of the member, improves the bearing capacity and stretch ability of the member, so that the member has good earthquake resistant behavior, the materials are saved and the available space is increased at the same time. According to the invention, prestress is not needed, the construction technology is simple, and the construction speed is improved. The member is suitable for the precasting production, is good for application of the two high tensile materials in projects, and meets the design concepts of energy saving, environmental protection and new style.
Description
Technical field
The present invention is built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member, be particularly useful for high level, heavy duty, longspan structure pier stud member field.
Background technology
Ultra-high performance concrete (Ultra High Performance Concrete is abbreviated as UHPC) claims RPC (Reactive Powder Concrete is abbreviated as RPC) again.Because the difference of its preparation, construction technology, its mechanical property and deformability all obviously are better than ordinary concrete and high-strength concrete, comprise based on the maximum density theory, remove coarse aggregate, the fineness that improves component is with active, so that reduce material internal defect to greatest extent; Mix steel fibre, increase toughness; Use high efficiency water reducing agent, reduce water-cement ratio and porosity; The high temperature maintenance, the hydration rate of promotion cementitious material and degree of hydration etc.Ultra-high performance concrete is the novel concrete based composites with superhigh intensity, high tenacity, high-durability, high crack-resistant and good volume stability, and being specially adapted to has the engineering field that high-strength, lightweight, resistance are split, good durability requires to structure.
High tensile reinforcement is HRB500 in the representative of China, have that intensity height, good-extensibility, solderability and plasticity are good, the intensity price is than advantage such as high, that safety stock is big, shock resistance is good, be used the performance that to give full play to the two with the high-strength plastic gel material, be particularly useful for the beam column member of heavy duty, large-span structure.Adopt high-strength steel influential point of tendons to bring good economical, societal benefits, the scientific and technological progress of builing industry will be promoted, and can save expenses such as a large amount of energy, electric power, transportation and processing, reduce the discharging of flue gas, dust and pollutant, promote the reinforcing bar updating and upgrading of a product, reduce resource consumption, Push Technology progress, the theory that meets environmental protection and sustainable development, but reason is used less at home owing to promotion efficiency deficiency, achievement in research be immature etc.
Reinforced concrete post adopts plain bars and ordinary concrete or high-strength concrete, when increasing, load rely on increasing section size and reinforcement ratio to improve its bearing capacity, exist sectional dimension excessive when load is excessive, consume material is too much, seriously takies shortcomings such as can utilizing space and ductility deficiency.If adopt ordinary concrete or high-strength concrete and high tensile reinforcement combined, then since the high tensile reinforcement yield strength much larger than concrete intensity, high tensile reinforcement not surrender as yet when concrete is crushed, can't give full play to the effect of high tensile reinforcement, and the brittle fracture of sign can appear not having in member ductility wretched insufficiency.
The concrete filled steel tube combined member is because steel pipe makes concrete resistance to compression bearing capacity increase substantially to concrete hoop effect of contraction, and concrete has then effectively been avoided the thin-walled flexing of steel pipe to the constraint of steel pipe; The ductility of concrete filled steel tubular member also is greatly improved, do not have when effectively having overcome component damage obvious sign between the topic.But still there are the following problems for steel core concrete column, and used plain bars and concrete intensity are still not enough, and the member section area is still excessive when load is big, and its lightweight, high-strength performance still remain further to be improved.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of existing steel concrete and steel core concrete column member, a kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member is provided.In high-rise, heavy duty, large-span structure, this combined member not only can be given full play to the advantage of these two kinds of Materials with High Strength of ultra-high performance concrete and high tensile reinforcement, and the compressive strength and the supporting capacity of the hoop of steel pipe constraint significantly raising ultra-high performance concrete post, reduced deformation of members, improve ductility, had good seismic resistance; Making full use of of Materials with High Strength effectively reduced the member section size, saved material, alleviated deadweight, increased and can utilize the space; Hollow structure has then improved the bending rigidity and the stability of member, has improved anti-seismic performance.The present invention meets energy-saving and environmental protection, novel design concept.
To achieve these goals, the present invention has adopted following technical scheme.A kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member, the cavity ultra-high performance concrete 2 that it comprises the cage of reinforcement in outer steel pipe 1, the outer steel pipe and is cast in outer steel pipe internal-surface parcel cage of reinforcement; Described cage of reinforcement is made up of longitudinal reinforcement 3 and stirrup 4, and stirrup 4 places the outside of longitudinal reinforcement 3, forms the closed ring of restriction longitudinal reinforcement 3 displacements; Leave cavity 5 in the middle of the member; Described longitudinal reinforcement 3 adopts high tensile reinforcement, and described stirrup 4 adopts high tensile reinforcement or plain bars.
Described high tensile reinforcement is meant that yield strength is 500MPa and above reinforcing bar.
Described ultra-high performance concrete 2 is for mixing or do not mix the ultra-high performance concrete that steel fibre or steel fibre and polyvinyl alcohol, polyethylene or basalt fibre mix.
The cross sectional shape of described outer steel pipe 1 comprises circle, rectangle, polygon, nose circle shape.
Described outer steel pipe 1 is uniform section or variable cross-section straight tube along its length.
Described outer steel pipe 1 and cavity 5 coaxial arrangement.
Described cavity 5 adopt circular cross-sections or with outer steel pipe shape same cross-sectional, and its cross section along the column length variation tendency with outside steel pipe consistent.
Making step of the present invention is as follows:
1) externally steel pipe carries out the type selecting making;
2) assembling reinforcement skeleton;
3) make inner formword;
4) build ultra-high performance concrete, simultaneously the high temperature maintenance.
Built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member has been integrated the advantage of ultra-high performance concrete, high tensile reinforcement and concrete-filled steel tubular hollow, the engineering that helps ultra-high performance concrete and high tensile reinforcement is used and is promoted, and mainly has the following advantages:
Adopt the combination of high tensile reinforcement and two kinds of Materials with High Strength of ultra-high performance concrete, utilize steel pipe to apply the hoop constraint simultaneously, can significantly reduce sectional dimension, increase bearing capacity, thereby saved material, reduced energy consumption, increased and to have utilized the space;
Adopt hollow structure, improved bending rigidity, increased member pressurized stability;
Help alleviating the deadweight of member, improve anti-seismic performance;
Ultra-high performance concrete is higher to curing requirements, and hollow structure has reduced concrete thickness, helps the maintenance of ultra-high performance concrete;
Under the pressurized situation, can obtain ductility preferably, overcome the problem of the excessive ductility deficiency of ultra-high performance concrete fragility;
Has refractoriness preferably.
Description of drawings
Fig. 1 is a circular hollow cross section built-in high tensile reinforcement steel tube confinement ultra-high performance concrete post member cross sectional representation;
Fig. 2 is a rectangle hollow cross section built-in high tensile reinforcement steel tube confinement ultra-high performance concrete post member cross sectional representation;
Fig. 3 is the built-in high tensile reinforcement steel tube confinement of a hexagon hollow section ultra-high performance concrete post member cross sectional representation;
Fig. 4 is the built-in high tensile reinforcement steel tube confinement of a nose circle shape hollow section ultra-high performance concrete post member cross sectional representation;
Fig. 5 is the built-in high tensile reinforcement steel tube confinement of a uniform section ultra-high performance concrete post member longitudinal sectional drawing;
Fig. 6 is the built-in high tensile reinforcement steel tube confinement of a variable cross-section ultra-high performance concrete post member longitudinal sectional drawing;
Among the figure: 1, outer steel pipe, 2, ultra-high performance concrete, 3, longitudinal reinforcement, 4, stirrup, 5, cavity.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in the figure, a kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member, the cavity ultra-high performance concrete 2 that it comprises the cage of reinforcement in outer steel pipe 1, the outer steel pipe and is cast in outer steel pipe internal-surface parcel cage of reinforcement; Described cage of reinforcement is made up of longitudinal reinforcement 3 and stirrup 4, and stirrup 4 places the outside of longitudinal reinforcement 3, forms the closed ring of restriction longitudinal reinforcement 3 displacements; Leave cavity 5 in the middle of the member; Described longitudinal reinforcement 3 adopts high tensile reinforcement, and described stirrup 4 adopts high tensile reinforcement or plain bars;
Described high tensile reinforcement is meant yield strength 500MPa and above reinforcing bar;
Described ultra-high performance concrete 2 is for mixing or do not mix the ultra-high performance concrete that steel fibre or steel fibre and polyvinyl alcohol, polyethylene or basalt fibre mix.
The cross sectional shape of described outer steel pipe 1 comprises circle, rectangle, polygon, nose circle shape, as shown in Figure 1 and Figure 4, also can adopt other structures except that Fig. 1 and Fig. 4.
Described outer steel pipe 1 is uniform section or variable cross-section straight tube along its length, as shown in Figure 5 and Figure 6.
Described outer steel pipe 1 and cavity 5 coaxial arrangement.
Described cavity 5 adopt circular cross-sections or with outer steel pipe shape same cross-sectional, and its cross section along the column length variation tendency with outside steel pipe consistent.
The manufacturing process of this structure comprises:
At first externally steel pipe 1 carries out type selecting, makes the cavity template simultaneously, and the good cage of reinforcement of colligation according to the design drawing installation in position, is built the three in steel pipe with ultra-high performance concrete then, carries out maintenance simultaneously.
The type selecting of outer steel pipe still should be considered the curing requirements of ultra-high performance concrete 2 except that considering member stress characteristics and member concrete environment of living in, preferentially select the uniform section form of thickness for use.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member is characterized in that: the cavity ultra-high performance concrete (2) that it comprises the cage of reinforcement in outer steel pipe (1), the outer steel pipe and is cast in outer steel pipe internal-surface parcel cage of reinforcement; Described cage of reinforcement is made up of longitudinal reinforcement (3) and stirrup (4), and stirrup (4) places the outside of longitudinal reinforcement (3), forms the closed ring of restriction longitudinal reinforcement (3) displacement; Leave cavity (5) in the middle of the member; Described longitudinal reinforcement (3) adopts high tensile reinforcement, and described stirrup (4) adopts high tensile reinforcement or plain bars;
Described high tensile reinforcement is meant yield strength 500MPa and above reinforcing bar;
Described ultra-high performance concrete (2) is for mixing or do not mix the ultra-high performance concrete that steel fibre or steel fibre and polyvinyl alcohol, polyethylene or basalt fibre mix.
2. a kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member according to claim 1, it is characterized in that: the cross sectional shape of described outer steel pipe (1) comprises circle, rectangle, polygon, nose circle shape.
3. a kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member according to claim 1, it is characterized in that: described outer steel pipe (1) is uniform section or variable cross-section straight tube along its length.
4. a kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member according to claim 1 is characterized in that: described outer steel pipe (1) and cavity (5) coaxial arrangement.
5. a kind of built-in high tensile reinforcement steel tube confinement ultra-high performance concrete hollow column member according to claim 1, it is characterized in that: described cavity (5) adopt to adopt circular cross-section or with outer steel pipe shape same cross-sectional, and its cross section along the column length variation tendency with outside steel pipe consistent.
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| CN201110166642A CN102296753A (en) | 2011-06-20 | 2011-06-20 | Hollow column member with built-in high tensile steel bars and pipes for confinement of ultra high performance concrete |
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| CN201110166642A CN102296753A (en) | 2011-06-20 | 2011-06-20 | Hollow column member with built-in high tensile steel bars and pipes for confinement of ultra high performance concrete |
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| CN103206043A (en) * | 2013-03-18 | 2013-07-17 | 广西大学 | PVC (polyvinyl chloride) pipe constrained and round spiral stirrup hooped reinforced concrete combined column |
| CN104005567A (en) * | 2014-05-07 | 2014-08-27 | 北京工业大学 | Ultra-high-performance concrete reinforced concrete column with fiber reinforced polymers wound around steel pipe |
| CN105507456A (en) * | 2016-01-29 | 2016-04-20 | 广东工业大学 | Composite shear wall with FRP (fiber reinforced polymer) tubes and metal tubes arranged inside |
| CN106812248A (en) * | 2017-02-21 | 2017-06-09 | 中恒建设集团有限公司 | A kind of construction refuse regenerated concrete superposed column and its construction technology |
| CN106917470A (en) * | 2017-03-10 | 2017-07-04 | 哈尔滨工业大学深圳研究生院 | The steel tube confinement concrete-filled rectangular steel tube component and its processing method of a kind of sandwich |
| WO2017194248A1 (en) * | 2016-05-10 | 2017-11-16 | Duktus (Production) Gmbh | Pipe and method for producing a pipe |
| CN107460995A (en) * | 2017-08-31 | 2017-12-12 | 华侨大学 | A kind of anti-buckling thin-wall steel tube steel fiber reinforced concrete coupled column and its construction method |
| CN108104146A (en) * | 2017-12-13 | 2018-06-01 | 郑州大学 | Prevent the pre-stressed steel pipe concrete tension binder and construction method that cushion cap shifts |
| CN108797320A (en) * | 2018-07-25 | 2018-11-13 | 重庆大学 | A kind of the UHPC pipes-concrete prefabricated assembling combination bridge pier and its construction method of spigot-and-socket joint |
| CN109252621A (en) * | 2018-11-22 | 2019-01-22 | 福泉市发隆钢构有限公司 | A kind of high load bearing stength steel core concrete column |
| CN109322502A (en) * | 2017-07-31 | 2019-02-12 | 湖南大学 | A kind of high tensile reinforcement ultra-high performance concrete plate reinforced for flexural member |
| CN110016993A (en) * | 2019-04-28 | 2019-07-16 | 熊福军 | A kind of concrete steel structural upright |
| CN110067339A (en) * | 2019-05-30 | 2019-07-30 | 福州大学 | A kind of high strength steel pipe constraint ultra-high performance concrete rod structure and its construction method |
| CN111139948A (en) * | 2020-03-02 | 2020-05-12 | 哈尔滨工业大学 | Assembled steel pipe concrete friction pendulum shock insulation pier stud |
| CN111321845A (en) * | 2019-11-25 | 2020-06-23 | 华东交通大学 | Ultra-light high-performance round-sleeved round hollow sandwich steel tube concrete column |
| CN112030986A (en) * | 2020-07-31 | 2020-12-04 | 中铁第四勘察设计院集团有限公司 | Combined steel pipe concrete waist beam structure, prefabricated member, connecting joint and construction method |
| CN112252807A (en) * | 2020-09-24 | 2021-01-22 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel tube-concrete composite electric pole and preparation method thereof |
| CN112267743A (en) * | 2020-09-24 | 2021-01-26 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel pipe-ultra-high performance concrete composite electric pole and preparation method thereof |
| CN112267747A (en) * | 2020-09-24 | 2021-01-26 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel pipe-ultra-high performance concrete composite electric pole and preparation method thereof |
| CN112282482A (en) * | 2020-09-24 | 2021-01-29 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel tube-concrete composite electric pole and preparation method thereof |
| CN112359843A (en) * | 2020-10-14 | 2021-02-12 | 中铁第四勘察设计院集团有限公司 | Hoop-bolt mixed node, foundation pit inner support structure and construction method |
| CN112573940A (en) * | 2019-09-27 | 2021-03-30 | 王哲 | Multi-temperature maintenance manufacturing method of combined structure and combined structure |
| CN113293930A (en) * | 2021-05-20 | 2021-08-24 | 武汉大学 | UHPC pipe restraint recycled concrete post externally pasted with FRP cloth |
| CN113309292A (en) * | 2021-06-07 | 2021-08-27 | 哈尔滨工业大学 | Variable-section multi-steel-pipe high-strength waste concrete combined column and construction method thereof |
| CN113638545A (en) * | 2019-12-08 | 2021-11-12 | 王哲 | Combined structure suitable for wide temperature range and manufacturing method |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103206043A (en) * | 2013-03-18 | 2013-07-17 | 广西大学 | PVC (polyvinyl chloride) pipe constrained and round spiral stirrup hooped reinforced concrete combined column |
| CN104005567A (en) * | 2014-05-07 | 2014-08-27 | 北京工业大学 | Ultra-high-performance concrete reinforced concrete column with fiber reinforced polymers wound around steel pipe |
| CN105507456A (en) * | 2016-01-29 | 2016-04-20 | 广东工业大学 | Composite shear wall with FRP (fiber reinforced polymer) tubes and metal tubes arranged inside |
| WO2017194248A1 (en) * | 2016-05-10 | 2017-11-16 | Duktus (Production) Gmbh | Pipe and method for producing a pipe |
| CN106812248A (en) * | 2017-02-21 | 2017-06-09 | 中恒建设集团有限公司 | A kind of construction refuse regenerated concrete superposed column and its construction technology |
| CN106917470A (en) * | 2017-03-10 | 2017-07-04 | 哈尔滨工业大学深圳研究生院 | The steel tube confinement concrete-filled rectangular steel tube component and its processing method of a kind of sandwich |
| CN109322502A (en) * | 2017-07-31 | 2019-02-12 | 湖南大学 | A kind of high tensile reinforcement ultra-high performance concrete plate reinforced for flexural member |
| CN107460995A (en) * | 2017-08-31 | 2017-12-12 | 华侨大学 | A kind of anti-buckling thin-wall steel tube steel fiber reinforced concrete coupled column and its construction method |
| CN108104146A (en) * | 2017-12-13 | 2018-06-01 | 郑州大学 | Prevent the pre-stressed steel pipe concrete tension binder and construction method that cushion cap shifts |
| CN108797320A (en) * | 2018-07-25 | 2018-11-13 | 重庆大学 | A kind of the UHPC pipes-concrete prefabricated assembling combination bridge pier and its construction method of spigot-and-socket joint |
| CN109252621A (en) * | 2018-11-22 | 2019-01-22 | 福泉市发隆钢构有限公司 | A kind of high load bearing stength steel core concrete column |
| CN110016993A (en) * | 2019-04-28 | 2019-07-16 | 熊福军 | A kind of concrete steel structural upright |
| CN110067339A (en) * | 2019-05-30 | 2019-07-30 | 福州大学 | A kind of high strength steel pipe constraint ultra-high performance concrete rod structure and its construction method |
| CN112573940B (en) * | 2019-09-27 | 2023-12-01 | 王哲 | Multi-temperature maintenance manufacturing method of combined structure and combined structure |
| CN112573940A (en) * | 2019-09-27 | 2021-03-30 | 王哲 | Multi-temperature maintenance manufacturing method of combined structure and combined structure |
| CN111321845A (en) * | 2019-11-25 | 2020-06-23 | 华东交通大学 | Ultra-light high-performance round-sleeved round hollow sandwich steel tube concrete column |
| CN113638545A (en) * | 2019-12-08 | 2021-11-12 | 王哲 | Combined structure suitable for wide temperature range and manufacturing method |
| CN111139948A (en) * | 2020-03-02 | 2020-05-12 | 哈尔滨工业大学 | Assembled steel pipe concrete friction pendulum shock insulation pier stud |
| CN112030986A (en) * | 2020-07-31 | 2020-12-04 | 中铁第四勘察设计院集团有限公司 | Combined steel pipe concrete waist beam structure, prefabricated member, connecting joint and construction method |
| CN112282482A (en) * | 2020-09-24 | 2021-01-29 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel tube-concrete composite electric pole and preparation method thereof |
| CN112267747A (en) * | 2020-09-24 | 2021-01-26 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel pipe-ultra-high performance concrete composite electric pole and preparation method thereof |
| CN112267743A (en) * | 2020-09-24 | 2021-01-26 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel pipe-ultra-high performance concrete composite electric pole and preparation method thereof |
| CN112252807A (en) * | 2020-09-24 | 2021-01-22 | 惠州富盈新材料科技有限公司 | Non-prestressed stainless steel tube-concrete composite electric pole and preparation method thereof |
| CN112359843A (en) * | 2020-10-14 | 2021-02-12 | 中铁第四勘察设计院集团有限公司 | Hoop-bolt mixed node, foundation pit inner support structure and construction method |
| CN113293930A (en) * | 2021-05-20 | 2021-08-24 | 武汉大学 | UHPC pipe restraint recycled concrete post externally pasted with FRP cloth |
| CN113309292A (en) * | 2021-06-07 | 2021-08-27 | 哈尔滨工业大学 | Variable-section multi-steel-pipe high-strength waste concrete combined column and construction method thereof |
| CN113309292B (en) * | 2021-06-07 | 2022-12-16 | 哈尔滨工业大学 | Variable-section multi-steel-pipe high-strength waste concrete combined column and construction method thereof |
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Application publication date: 20111228 |