CN102995830A - Self-adaptive split column and manufacturing method thereof - Google Patents
Self-adaptive split column and manufacturing method thereof Download PDFInfo
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- CN102995830A CN102995830A CN2011102902410A CN201110290241A CN102995830A CN 102995830 A CN102995830 A CN 102995830A CN 2011102902410 A CN2011102902410 A CN 2011102902410A CN 201110290241 A CN201110290241 A CN 201110290241A CN 102995830 A CN102995830 A CN 102995830A
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Abstract
The invention relates to a self-adaptive split column belonging to the technical field of reinforced concrete columns. The self-adaptive split column is characterized by being an integral-section column comprising a reinforced concrete reinforcement unit and partition materials, wherein the reinforced concrete reinforcement unit consists of 2 or 4 reinforcement subunits, the partition materials are arranged among the reinforcement subunits and are vertical to each other and arranged at a set parting position along the reinforced concrete reinforcement unit, at least concrete at protection layers of peripheral longitudinal bars in the section of the column is not partitioned, wherein the parting position refers to at least one vertical slot along an interface between the partition materials and the concrete in the reinforced concrete column along with increase of the load, and the partition materials are plates. The manufacturing method of the self-adaptive split column comprises the following steps of binding reinforced bars, placing the partition materials, supporting templates, pouring concrete, maintaining, removing forms and the like. According to the self-adaptive split column, the brittle failure of the column is changed into ductile failure, and therefore the quakeproof performance of the self-adaptive split column is remarkably improved.
Description
Invention field
The self adaptation separated column belongs to the reinforced concrete structure technical field, relates in particular to a kind of pillar and manufacture method thereof that is applicable to multilayer, high-level structure.
Background technology
In steel concrete multilayer and high building structure, because the restriction of use functional requirement and ratio of axial compressive force to axial compressive ultimate capacity of section etc. often form short column even ultrashort post in structure.The destruction of Reinforced Concrete Short generally is shear failure or bond damage, all is the very poor brittle fracture of ductility, and destructive process is of short duration suddenly, and it is very little to consume energy, and is easy to cause structural damage even collapses in earthquake.
In order to improve the particularly anti-seismic performance of utmost point short column of short column, a kind of separated column has appearred, namely with barrier material pillar is separated into the assembly of several pillars, the ratio of shear span to effective depth of section of each pillar is larger, thereby improves the anti-seismic performance of pillar.The barrier material of separated column connects the cross section of pillar, and functional performance is affected, and the ratio of rigidity integral post of normal operational phase is little.
The barrier material of self adaptation separated column does not connect the pillar cross section, therefore shows as integral post in normal operational phase.Along with the raising of horizontal loading, the self adaptation separated column experience evolution process from the integral post to the separated column: load hour, pillar is in elastic stage, shows as the mechanical characteristic of integral post, rigidity is large; Along with load increases, pillar is along sheet material and the concrete perps that occurs at the interface, perps width, length is along with the increase of pillar sidesway increases gradually, the process of the carrying out difference of different parts perps, and perps has according to the stressed automatic appearance of pillar and changes the characteristics of condition; After reaching the peak value bearing capacity, the condition of perps tends towards stability, and pillar is divided into separated column, has greatly improved ductility and the energy dissipation capacity of pillar.The self adaptation separated column changes short column or ultrashort brittle shear failure of living the ductile fracture of separated column into, and the pillar anti-seismic performance is significantly improved
Summary of the invention
The purpose of this invention is to provide a kind of reinforced-concrete post with self-adaptive parting function, can improve the ductility of short column or ultrashort post, improve its stress performance.
The invention is characterized in that described self adaptation separated column is integral post, contain a steel concrete arrangement of reinforcement unit and barrier material, barrier material only accounts for the part in pillar cross section, its size is no more than pillar cross-sectional perimeter stirrup, Main Function is to weaken concrete section, the topping place concrete of the vertical muscle of periphery in the pillar cross section is not separated, and the concrete of pillar is an integral body; Pillar cross-sectional perimeter stirrup is continuous.Described steel concrete arrangement of reinforcement unit is comprised of two or four uniform section body arrangement of reinforcement subelement, described barrier material is that the parting position of setting in described steel concrete arrangement of reinforcement unit is vertically arranged, and be arranged between the uniform section body arrangement of reinforcement subelement, described parting position refers to along with load increases in described reinforced concrete column along described barrier material and concrete at least one perps that occurs at the interface, pillar is divided into 2 uniform section unit posts at least, described barrier material is sheet material, and described sheet material is metal sheet or fibre reinforced composites (FRP) plate or the similar materials such as gypsum plank or plank.In order to adjust the pillar performance, in needs, can hole-opening on barrier material.
Along with load increases, described self adaptation separated column can change the smaller whole Section Column of shear span into ratio of shear span to effective depth of section larger separated column, thereby has improved significantly the ductility when pillar destroys.
The manufacture method of self adaptation separated column of the present invention is summarized as follows:
(1) colligation forms stirrup and the vertical muscle of the two or four unit post of self adaptation separated column;
(2) the unit intercolumniation after placing colligation complete barrier material, barrier material only accounts for the part in self adaptation separated column cross section, and size is no more than pillar cross-sectional circumference stirrup, and above-mentioned barrier material adopts sheet material;
(3) the peripheral stirrup of colligation encloses bundle together with all unit posts;
(4) template is fixed on the cage of reinforcement periphery;
(5) concreting and guarantee concrete compaction;
(6) concrete is carried out maintenance, namely make the self adaptation separated column after the form removal.
The present invention compared with prior art has following advantage:
(1) self adaptation separated column of the present invention can significantly improve ductility and the energy dissipation capacity of short column and ultrashort post, improves its anti-seismic performance.
(2) self adaptation separated column of the present invention is whole Section Column in normal operational phase, and rigidity is large, and functional performance is good.
(3) self adaptation separated column of the present invention does not increase difficulty of construction and cost substantially.
Description of drawings
Fig. 1. self adaptation separated column sectional view of the present invention, 1 is barrier material, and 2 is the unit post, and 3 is the peripheral stirrup of pillar, 4 unit column tie-bars;
Fig. 2. the peripheral stirrup of self adaptation separated column of the present invention and unit column tie-bar structural representation.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
In the drawings, self adaptation separated column of the present invention is separated material 1 and is divided into 4 uniform section unit posts 2, and " seismic design provision in building code " (GB50011-2010) regulation of 6.3.7,6.3.8 and 6.3.9 bar is satisfied in the vertical muscle of each unit post 2 and the configuration of stirrup 4.Barrier material 1 is for being sheet material, and its size is no more than the peripheral stirrup 3 of pillar.The peripheral stirrup 3 of pillar encloses the concrete of 4 unit posts 2 of bundle and whole pillar.The concrete of self adaptation separated column of the present invention is not separated material 1 to be separated fully, and the concrete of 4 unit posts 2 links together outside topping and barrier material 1 scope.
The self adaptation separated column is applicable to the ratio of shear span to effective depth of section≤2 pillars in frame construction, frame shear wall structure and the frame supported shear wall structure of earthquake zone.
The manufacturing process of self adaptation separated column of the present invention is as follows:
(1) the vertical muscle of colligation unit post 2 and stirrup 4, the vertical muscle of each unit post 2 adopts symmetric reinforcement, and " seismic design provision in building code " (GB50011-2010) regulation of 6.3.7,6.3.8 and 6.3.9 bar is satisfied in the configuration of vertical muscle and stirrup 4.
(2) barrier material 1 is placed between the bar frame of unit post 2.
(3) the peripheral stirrup 3 of colligation pillar encloses bundle together with unit post 2.
(4) formwork supporting plate, concreting, then maintenance namely makes the self adaptation separated column after the form removal.
In building course, self adaptation separated column and common pillar construction technology are basic identical, only arrange barrier material at the position that needs parting.
The self adaptation separated column be in the ordinary reinforced concrete post along the portrait configuration barrier material to separate concrete, realize the self-adaptive parting function.Barrier material is sheet material, and sheet material can be metal sheet, fibre reinforced composites (being FRP) thin plate or polymer plastic flitch or the similar materials such as gypsum plank or plank.
Claims (8)
1. self adaptation separated column; it is characterized in that containing the whole Section Column of steel concrete arrangement of reinforcement unit and barrier material; there are 2 or 4 subelements in described steel concrete arrangement of reinforcement unit; be furnished with barrier material between subelement; described barrier material accounts for the part in pillar cross section; vertically arranged in the parting position of setting along described steel concrete arrangement of reinforcement unit; the topping place concrete that guarantees the vertical muscle of periphery in the pillar cross section is not separated; described parting position refers to that described barrier material is sheet material along with load increases in described reinforced concrete column along described barrier material and concrete at least one perps that occurs at the interface.
2. self adaptation separated column according to claim 1 is characterized in that described sheet material is metal sheet.
3. self adaptation separated column according to claim 1 is characterized in that described sheet material is fiber-reinforced composite composite material (FRP) thin plate.
4. self adaptation separated column according to claim 1 is characterized in that described sheet material is the high molecule plastic thin plate.
5. self adaptation separated column according to claim 1 is characterized in that described sheet material is the similar materials such as gypsum plank or plank.
6. self adaptation separated column according to claim 1 is characterized in that not having hole on the described sheet material.
7. self adaptation separated column according to claim 1 is characterized in that having hole on the described sheet material.
8. the manufacture method of self adaptation separated column is characterized in that being to comprise the following steps:
(1) colligation forms stirrup and the vertical muscle of the two or four unit post of self adaptation separated column;
(2) the unit intercolumniation after placing colligation complete barrier material, barrier material only accounts for the part in self adaptation separated column cross section, and size is no more than pillar cross-sectional circumference stirrup;
(3) the peripheral stirrup of colligation encloses bundle together with all unit posts;
(4) template is fixed on integral post cage of reinforcement periphery;
(5) concreting and guarantee concrete compaction;
(6) concrete is carried out maintenance, namely make the self adaptation separated column after the form removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102902410A CN102995830A (en) | 2011-09-18 | 2011-09-18 | Self-adaptive split column and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102902410A CN102995830A (en) | 2011-09-18 | 2011-09-18 | Self-adaptive split column and manufacturing method thereof |
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| CN102995830A true CN102995830A (en) | 2013-03-27 |
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| CN2011102902410A Pending CN102995830A (en) | 2011-09-18 | 2011-09-18 | Self-adaptive split column and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672572A (en) * | 2016-03-18 | 2016-06-15 | 广西大学 | Multi-bundle-shaped ultra-high-performance concrete constraint common concrete L-shaped column and L-shaped short-leg shear wall |
| CN105666627A (en) * | 2016-02-25 | 2016-06-15 | 南京林业大学 | High-strength glue-laminated bamboo hollow column and preparation method thereof |
| CN106013421A (en) * | 2016-06-15 | 2016-10-12 | 黄山学院 | Building method for steel-wood combined assembling type fiber concrete building |
| CN106351257A (en) * | 2016-10-14 | 2017-01-25 | 北京工业大学 | Built-in separation plate prefabricated separate post for underground structure |
| CN107433679A (en) * | 2017-09-20 | 2017-12-05 | 沈阳建筑大学 | A kind of New Thin-walled steel tube confinement steel concrete separated column and preparation method thereof |
| CN108518023A (en) * | 2018-05-25 | 2018-09-11 | 中铁第勘察设计院集团有限公司 | Subway station anti-earthquake ductility center pillar |
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| JPH07139051A (en) * | 1993-11-15 | 1995-05-30 | Takenaka Komuten Co Ltd | Centrifugal force steel pipe concrete column and manufacture thereof |
| CN2474607Y (en) * | 2001-03-27 | 2002-01-30 | 天津大学 | Steel concrete separated column for high storey building |
| CN2806624Y (en) * | 2005-06-27 | 2006-08-16 | 扬州大学 | Reinforced concrete damping column |
| CN202401665U (en) * | 2011-09-18 | 2012-08-29 | 烟台大学 | Self-adapting split column |
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2011
- 2011-09-18 CN CN2011102902410A patent/CN102995830A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07139051A (en) * | 1993-11-15 | 1995-05-30 | Takenaka Komuten Co Ltd | Centrifugal force steel pipe concrete column and manufacture thereof |
| CN2474607Y (en) * | 2001-03-27 | 2002-01-30 | 天津大学 | Steel concrete separated column for high storey building |
| CN2806624Y (en) * | 2005-06-27 | 2006-08-16 | 扬州大学 | Reinforced concrete damping column |
| CN202401665U (en) * | 2011-09-18 | 2012-08-29 | 烟台大学 | Self-adapting split column |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666627A (en) * | 2016-02-25 | 2016-06-15 | 南京林业大学 | High-strength glue-laminated bamboo hollow column and preparation method thereof |
| CN105666627B (en) * | 2016-02-25 | 2018-01-12 | 南京林业大学 | High-strength bamboo wood open tubular column and preparation method |
| CN105672572A (en) * | 2016-03-18 | 2016-06-15 | 广西大学 | Multi-bundle-shaped ultra-high-performance concrete constraint common concrete L-shaped column and L-shaped short-leg shear wall |
| CN106013421A (en) * | 2016-06-15 | 2016-10-12 | 黄山学院 | Building method for steel-wood combined assembling type fiber concrete building |
| CN106351257A (en) * | 2016-10-14 | 2017-01-25 | 北京工业大学 | Built-in separation plate prefabricated separate post for underground structure |
| CN107433679A (en) * | 2017-09-20 | 2017-12-05 | 沈阳建筑大学 | A kind of New Thin-walled steel tube confinement steel concrete separated column and preparation method thereof |
| CN108518023A (en) * | 2018-05-25 | 2018-09-11 | 中铁第勘察设计院集团有限公司 | Subway station anti-earthquake ductility center pillar |
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Application publication date: 20130327 |