CN101457548A - Node for connecting round steel tube concrete column with reinforced concrete floor and method for making same - Google Patents
Node for connecting round steel tube concrete column with reinforced concrete floor and method for making same Download PDFInfo
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- CN101457548A CN101457548A CNA2008102206592A CN200810220659A CN101457548A CN 101457548 A CN101457548 A CN 101457548A CN A2008102206592 A CNA2008102206592 A CN A2008102206592A CN 200810220659 A CN200810220659 A CN 200810220659A CN 101457548 A CN101457548 A CN 101457548A
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Abstract
The invention discloses a joint for connecting a round steel pipe concrete column and a slab floor and a manufacturing method thereof. A round steel pipe is internally built with concrete, at least one shearing resistant ring rib clings to and is welded at the outer side of the steel pipe along the circumference of the steel pipe; a ring beam is positioned at the outer side of the round steel pipe, and reinforcing steel bars arranged along the ring direction and hoop reinforcements distributed along the radial direction in a radial shape form a reinforcing cage; a whole slab floor is formed by concrete placement. When in preparation, the prefabricated ring beam reinforcing cage is processed in the fabricating yard or the factory. After the reinforcing cage is lifted, a slab floor framework beam is bound, and then the concrete of the ring beam and the slab floor are built at the same time, so that the whole slab floor is formed. The joint steel pipe is not provided with a punching component and a stiffening ring plate, and the section of the steel pipe is not cut, so that the concrete placement in the pipe is not affected. The joint has reasonable transmission force, definite stress, simple form, high bearing capacity, good shock resistant performance and convenient construction, can comparatively save materials, and has great significance in further popularizing the application of encased structures in the projects as well as good engineering application prospect.
Description
Technical field
The present invention relates to concrete column and concrete beam connected node in the Structural Engineering in the civil engineering, specifically relate to novel joint that a kind of concrete-filled circular steel tube column is connected with reinforced concrete floor and preparation method thereof.
Background technology
Middle 1960s is especially after the nineties, and concrete filled steel tube day by day is widely used in the engineerings such as the high level of China and super highrise building, Longspan Bridge with its excellent mechanical property and cost performance.Owing to the effect of contraction of steel pipe to fill concrete, concrete is in the stress state of three-dimensional compression, thereby can give full play to its compressive strength on the one hand; On the other hand because concrete filling effect, improved steel pipe is resisted flexing under responsive to axial force ability.Encased structures is with its very rational combination of materials, can give full play to and utilize steel and concrete material characteristics separately, on performance, reach mutual supplement with each other's advantages, has plasticity and toughness preferably when improving the component load-bearing ability again, for the application of high-strength concrete and high-strength steel provides new approach.Adopt encased structures (especially concrete-filled circular steel tube column) can save a large amount of constructional materialss and easy construction, economic benefit also is conspicuous.
Simultaneously, by the national conditions of present stage China, highrise building is reaching the main cast-in-situ steel reinforced concrete beam-and-slab floor that adopts in following significant period of time now.How to solve steel core concrete column perplexing engineering circle always with being connected of reinforced concrete girder slab superstructure.And as steel tube concrete beam and column node, must transmit shearing and the moment of flexure that beam slab transmits reliably, and force path is directly clear and definite, has enough ductility, can satisfy the seismic design principle of " strong column and weak beam, strong node, weak member ".So steel core concrete column is one of key technology that must solve with being connected of reinforced concrete floor.
At present, there is complex structure to some extent in other connected node of steel core concrete column of using in engineering and reinforced concrete floor, and the welding job amount is big, installs complicated, building of overslaugh pipe inner concrete, the steel pipe walls shortcomings such as influencing the concrete filled steel tube columns bearing capacity that punches.Propose power transmission rationally, safety economy, the steel core concrete column of easy construction and the novel connected node of reinforced concrete girder slab superstructure, becoming the advantage of giving full play to encased structures, the key of promoting encased structures, is the problem that engineering circle urgently will solve.
Summary of the invention
Node that the object of the present invention is to provide that a kind of power transmission is clear and definite, the safe and reliable and convenient construction that can fully guarantee node, the concrete-filled circular steel tube column of economizing material economy is connected with reinforced concrete floor and preparation method thereof.
Purpose of the present invention is achieved through the following technical solutions:
The node that concrete-filled circular steel tube column is connected with reinforced concrete floor comprises round steel pipe, flooring Vierendeel girder or arch without beam plate, ring beam and is welded in the anti-shear ring in the round steel pipe outside; Concreting in the described round steel pipe, at least one anti-shear ring muscle paste along the steel pipe circumference and are welded in the steel pipe outside; Described ring beam is positioned at the round steel pipe outside, constitutes reinforcing cage by the reinforcing bar of arranging along hoop with the stirrup that radially becomes radial arrangement; Described ring beam depth of section is greater than the thickness of flooring Vierendeel girder depth of section or arch without beam plate, the ring beam breadth of section is not less than the thickness of the wide or arch without beam in Vierendeel girder cross section, the anchoring in ring beam of the reinforcing bar of the reinforcing bar of flooring Vierendeel girder or arch without beam plate forms the monolithic concrete superstructure with concreting.
For further realizing purpose of the present invention, described ring beam stirrup radially becomes radial arrangement.
When the height of ring beam 〉=450mm, along short transverse configuration hoop waist muscle, waist muscle diameter is not less than 12mm, and its spacing is not more than 200mm in two sides of ring beam.
Described superstructure beam reinforced steel bar anchors into the length of ring beam more than or equal to corresponding anchorage length Lae.
Described anti-shear ring is circular or square reinforcing bar.
Described ring beam depth of section is greater than the thickness 50mm of flooring Vierendeel girder depth of section or arch without beam plate.
The preparation method of the node that concrete-filled circular steel tube column is connected with reinforced concrete floor comprises the steps and process conditions:
(1) in advance at least one anti-shear ring is welded in the concrete-filled circular steel tube column steel pipe walls outside;
(2) the beam section height of the template of ring beam is made bigger than Vierendeel girder or arch without beam plate, the ring beam breadth of section is not less than the thickness of slab of the wide or arch without beam plate in Vierendeel girder cross section, and template construct and superstructure beam slab are finished the same period;
(3) ring reinforcing bar and ring beam outer shroud reinforcing bar are arranged in the ring beam top and the bottom according to the reinforcing bar amount of calculating along the ring beam hoop is even respectively in the ring beam, and the ring beam stirrup radially becomes radial arrangement;
(4) ring reinforcing bar and the bar splice of ring beam outer shroud are welded to connect or mechanical connection in the ring beam, and the tensile strength of junction is not less than the ring muscle;
(5) ring reinforcing bar, ring beam outer shroud reinforcing bar and the colligation of ring beam stirrup form the ring beam reinforcing cage in the ring beam;
(6) lifting of reinforcing cage is in the template of ring beam, and Vierendeel girder and floor bar stretch into the anchoring of ring beam reinforcing cage;
(7) concrete of ring beam and superstructure beam slab are together built, and its strength grade of concrete is not less than the strength grade of concrete that is attached thereto beam slab.
When ring beam height 〉=450mm, described step (4) also is included in two sides of ring beam along short transverse configuration hoop waist muscle, and waist muscle diameter is not less than 12mm, and its spacing is not more than 200mm.
The relative prior art of the present invention has following advantage and beneficial effect:
(1) the present invention proposes the novel joint that a kind of concrete-filled circular steel tube column is connected with reinforced concrete floor, around the round steel pipe concrete column one reinforced concrete circle beam is set and is used to transmit framework beam-ends moment of flexure, at ring beam middle part or the bottom steel tube outer surface paste circular (or square) reinforcing bar of weldering, be called anti-shear ring, be used for Transfer of Shear.Manufacture craft is simple, and stressed rationally reliable, steel using amount is few, cost saving.
(2) ultimate bearing capacity of joints height, anti-seismic performance is good.Ultimate bearing capacity of joints is higher than the flooring Vierendeel girder bearing capacity that is attached thereto; The application of anti-shear ring, the safety stock height; This novel joint can guarantee the principles of structural design of " strong node, weak member " well, satisfies the anti-seismic construction requirement of " strong column and weak beam ".
(3) the node ring beam is non-directional, and is easy for installation, is convenient to be connected with the Vierendeel girder of any direction.
(4) it is identical with general concrete beam that easy construction, the colligation of reinforced concrete circle beam reinforcing cage require; Anti-shear ring only is connected with steel pipe walls by fillet weld, and the welding job amount is little, and can finish at produce in factory; Except that the spreading of steel pipe, the scene does not have the welding job amount, and it is convenient to construct.
(5) steel duct does not have the punching member and the ring flat-plate of putting more energy into, and steel pipe walls need not punch, and steel tube section is not weakened, and can guarantee the cross section bearing capacity of steel core concrete column, is convenient to manage simultaneously building of inner concrete yet.
Description of drawings
Fig. 1 is the vertical view of concrete-filled circular steel tube column and reinforced concrete floor connected node.
Fig. 2 is the elevation of concrete-filled circular steel tube column and reinforced concrete floor connected node.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is that the B-B of Fig. 1 is to sectional view.
The specific embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples, but embodiments of the present invention are not limited thereto.
Shown in Fig. 1,2,3,4, concrete-filled circular steel tube column and reinforced concrete floor connected node comprise: ring reinforcing bar 4, ring beam outer shroud reinforcing bar 5, ring beam stirrup 6 in round steel pipe 1, flooring Vierendeel girder 2, ring beam 3, the ring beam, anti-shear ring 7.Ring beam 3 is positioned at round steel pipe 1 outside, ring beam 3 builds up cirque structure by ring reinforcing bar 4 and ring beam outer shroud reinforcing bar 5 in the ring beam up and down and ring beam stirrup 6 through concrete casting, wherein ring reinforcing bar 4, ring beam outer shroud reinforcing bar 5 and ring beam stirrup 6 form reinforcing cage by colligation in the ring beam, ring reinforcing bar 4 and ring beam outer shroud reinforcing bar 5 are arranged in the upper and lower of ring beam in the ring beam, 6 colligations of ring beam stirrup encircle in ring beam on reinforcing bar 4 and the ring beam outer shroud reinforcing bar 5, spacing between the ring beam stirrup 6 determines that by Force Calculation ring beam stirrup 6 radially becomes radial arrangement; When depth of beam 〉=450mm, along short transverse configuration hoop waist muscle, waist muscle diameter is not less than 12mm, and its spacing is not more than 200mm in two sides of ring beam; Ring beam 3 depth of sections are preferably greater than 50mm greater than the thickness of flooring Vierendeel girder cross section 2 height or arch without beam plate; Ring beam 3 breadth of section are not less than the thickness of the wide or arch without beam in Vierendeel girder cross section, and reinforcing bar anchoring in ring beam 3 of the reinforcing bar of flooring Vierendeel girder 2 or arch without beam plate is built with concreting and to be formed the monolithic concrete superstructure; Concreting in the round steel pipe, the anti-shear ring level in the tube wall outside is pasted the weldering anti-shear ring.Anti-shear ring 7 is circular or square reinforcing bar, and anti-shear ring 7 adopts fillet weld with the welding of steel pipe column 1 outer wall.
Flooring Vierendeel girder 2 is a reinforced concrete beam, and the stirrup 10 of Vierendeel girder upper longitudinal bar 8, the vertical muscle 9 in Vierendeel girder bottom and Vierendeel girder constitutes the bar construction of flooring Vierendeel girder 2.The anchoring in ring beam 3 of the reinforcing bar of flooring Vierendeel girder 2 is meant that the vertical muscle 9 of Vierendeel girder upper longitudinal bar 8 and Vierendeel girder bottom stretches in the ring beam 3, and satisfies antidetonation anchorage length Lae requirement.The reinforcing bar of arch without beam plate anchoring preparation method in ring beam 3 is identical with 2 anchorings of flooring Vierendeel girder.
This concrete-filled circular steel tube column is as follows with the preparation process of reinforced concrete floor connected node:
The first step is determined reinforced concrete circle beam 3 beam section sizes, and the beam section aspect ratio of ring beam 3 and its flooring Vierendeel girder 2 big 50mm that intersect are with flooring Vierendeel girder 2 comparisons of depth of section maximum; Ring beam 3 breadth of section are not less than with Vierendeel girder 2 cross sections of its breadth of section maximum that intersects wide, and satisfy the anchoring horizontal section length of the vertical muscle 8 of Vierendeel girder.Node formwork and superstructure are finished the same period.
Second step was pasted the anti-shear ring 7 in the weldering concrete-filled circular steel tube column steel pipe walls outside, and anti-shear ring is established twice, and in the ring beam middle part, another road is in the bottom together.
The 3rd step was made the reinforcing cage around the reinforced concrete circle beam 3 of concrete-filled circular steel tube column 1.The ring muscle of reinforcing cage and stirrup quantity are by calculating and constructing and determine.
The 4th step according to fixed ring muscle and stirrup amount of reinforcement and physical dimension on ground or other work planes make reinforcing cages.
After the lifting of the 5th step reinforcing cage is intact, Vierendeel girder and floor bar stretch into the ring beam anchoring, wait to seal the ring beam side template after, (the concrete filled steel tube inner concrete is built and should be built prior to superstructure can concreting to form the monolithic concrete superstructure, otherwise should keep support, avoid the sky steel pipe stressed).
In this concrete-filled circular steel tube column and the reinforced concrete floor connected node, steel pipe adopts Q345B, concrete strength is identical with the superstructure concrete strength, the ring beam reinforced steel bar strength is identical with the flooring Vierendeel girder, be III level steel, welding rod adopts the E50 type, solder flux 5014, and the fillet weld of anti-shear ring and steel pipe walls reaches three grades of weldquality requirements.
As mentioned above, can realize the present invention preferably.
Claims (8)
1, the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column is characterized in that: comprise round steel pipe, flooring Vierendeel girder or arch without beam plate, ring beam and be welded in the anti-shear ring in the round steel pipe outside; Concreting in the described round steel pipe, at least one anti-shear ring muscle paste along the steel pipe circumference and are welded in the steel pipe outside; Described ring beam is positioned at the round steel pipe outside, constitutes reinforcing cage by the reinforcing bar of arranging along hoop with the stirrup that radially becomes radial arrangement; Described ring beam depth of section is greater than the thickness of flooring Vierendeel girder depth of section or arch without beam plate, the ring beam breadth of section is not less than the thickness of the wide or arch without beam in Vierendeel girder cross section, the anchoring in ring beam of the reinforcing bar of the reinforcing bar of flooring Vierendeel girder or arch without beam plate forms the monolithic concrete superstructure with concreting.
2, the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column according to claim 1, it is characterized in that: described ring beam stirrup radially becomes radial arrangement.
3, the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column according to claim 1, it is characterized in that: when the height of ring beam 〉=450mm, two sides at ring beam dispose hoop waist muscle along short transverse, and waist muscle diameter is not less than 12mm, and its spacing is not more than 200mm.
4, the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column according to claim 1 is characterized in that: described superstructure beam reinforced steel bar anchors into the length of ring beam more than or equal to corresponding anchorage length Lae.
5, the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column according to claim 1 is characterized in that: described anti-shear ring is circular or square reinforcing bar.
6, the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column according to claim 1, it is characterized in that: described ring beam depth of section is greater than the thickness 50mm of flooring Vierendeel girder depth of section or arch without beam plate.
7, the preparation method of the node that is connected with reinforced concrete floor of the described concrete-filled circular steel tube column of claim 1, its feature comprises the steps and process conditions:
(1) in advance at least one anti-shear ring is welded in the concrete-filled circular steel tube column steel pipe walls outside;
(2) the beam section height of the template of ring beam is made bigger than Vierendeel girder or arch without beam plate, the ring beam breadth of section is not less than the thickness of slab of the wide or arch without beam plate in Vierendeel girder cross section, and template construct and superstructure beam slab are finished the same period;
(3) ring reinforcing bar and ring beam outer shroud reinforcing bar are arranged in the ring beam top and the bottom according to the reinforcing bar amount of calculating along the ring beam hoop is even respectively in the ring beam, and the ring beam stirrup radially becomes radial arrangement;
(4) ring reinforcing bar and the bar splice of ring beam outer shroud are welded to connect or mechanical connection in the ring beam, and the tensile strength of junction is not less than the ring muscle;
(5) ring reinforcing bar, ring beam outer shroud reinforcing bar and the colligation of ring beam stirrup form the ring beam reinforcing cage in the ring beam;
(6) lifting of reinforcing cage is in the template of ring beam, and Vierendeel girder and floor bar stretch into the anchoring of ring beam reinforcing cage;
(7) concrete of ring beam and superstructure beam slab are together built, and its strength grade of concrete is not less than the strength grade of concrete that is attached thereto beam slab.
8, the preparation method of the node that is connected with reinforced concrete floor of concrete-filled circular steel tube column according to claim 7, it is characterized in that when ring beam height 〉=450mm, described step (4) also is included in two sides of ring beam along short transverse configuration hoop waist muscle, waist muscle diameter is not less than 12mm, and its spacing is not more than 200mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102206592A CN101457548A (en) | 2008-12-31 | 2008-12-31 | Node for connecting round steel tube concrete column with reinforced concrete floor and method for making same |
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| CNA2008102206592A CN101457548A (en) | 2008-12-31 | 2008-12-31 | Node for connecting round steel tube concrete column with reinforced concrete floor and method for making same |
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| CN101457548A true CN101457548A (en) | 2009-06-17 |
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Cited By (18)
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| CN101694109B (en) * | 2009-08-13 | 2010-12-29 | 沈阳建筑大学 | Dropping semi-core-through joint of hollow laminated steel pipe concrete column and steel girder |
| CN101979791A (en) * | 2010-12-02 | 2011-02-23 | 北京建工集团有限责任公司 | Ring beam and annular corbel column reinforced connection joint and construction method thereof |
| CN102071747A (en) * | 2010-12-17 | 2011-05-25 | 华南理工大学建筑设计研究院 | Joint of square steel tube concrete column and reinforced concrete floor and production method thereof |
| CN102425238A (en) * | 2011-12-28 | 2012-04-25 | 中建一局集团第二建筑有限公司 | Node of steel tube concrete lamination column and frame beam and construction method of node |
| CN102619164A (en) * | 2012-04-17 | 2012-08-01 | 上海市城市建设设计研究总院 | Quake-proof reinforcing bar structure of pier column |
| CN106545088A (en) * | 2016-11-24 | 2017-03-29 | 大象建筑设计有限公司 | The switching node and implementation of a kind of upper strata concrete column and lower floor's steel core concrete column |
| CN106836491A (en) * | 2017-03-29 | 2017-06-13 | 长安大学 | A kind of high strength steel pipe concrete column girder connection structure and its construction method |
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| CN108457372A (en) * | 2018-05-02 | 2018-08-28 | 华南理工大学 | A kind of steel core concrete column-steel plate concrete ring beam joint and its construction method |
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| CN111502010A (en) * | 2019-11-21 | 2020-08-07 | 江苏永联精筑建设集团有限公司 | Method for improving construction quality of large-span stiff concrete beam structure |
| CN111608202A (en) * | 2020-06-23 | 2020-09-01 | 中国建筑第四工程局有限公司 | Reverse construction method basement ring beam steel bar installation method and device |
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| CN101694109B (en) * | 2009-08-13 | 2010-12-29 | 沈阳建筑大学 | Dropping semi-core-through joint of hollow laminated steel pipe concrete column and steel girder |
| CN101979791A (en) * | 2010-12-02 | 2011-02-23 | 北京建工集团有限责任公司 | Ring beam and annular corbel column reinforced connection joint and construction method thereof |
| CN101979791B (en) * | 2010-12-02 | 2012-04-11 | 北京建工集团有限责任公司 | Ring beam and annular corbel column reinforced connection joint construction method |
| CN102071747A (en) * | 2010-12-17 | 2011-05-25 | 华南理工大学建筑设计研究院 | Joint of square steel tube concrete column and reinforced concrete floor and production method thereof |
| CN102425238B (en) * | 2011-12-28 | 2013-06-26 | 中建一局集团第二建筑有限公司 | Node of steel tube concrete lamination column and frame beam and construction method of node |
| CN102425238A (en) * | 2011-12-28 | 2012-04-25 | 中建一局集团第二建筑有限公司 | Node of steel tube concrete lamination column and frame beam and construction method of node |
| CN102619164A (en) * | 2012-04-17 | 2012-08-01 | 上海市城市建设设计研究总院 | Quake-proof reinforcing bar structure of pier column |
| CN106545088A (en) * | 2016-11-24 | 2017-03-29 | 大象建筑设计有限公司 | The switching node and implementation of a kind of upper strata concrete column and lower floor's steel core concrete column |
| CN106836491A (en) * | 2017-03-29 | 2017-06-13 | 长安大学 | A kind of high strength steel pipe concrete column girder connection structure and its construction method |
| CN106869172B (en) * | 2017-04-01 | 2019-01-04 | 中交第二航务工程局有限公司 | In-situ deposited prefabricated split-mounting type subway underground station construction method |
| CN106869172A (en) * | 2017-04-01 | 2017-06-20 | 中交第二航务工程局有限公司 | In-situ deposited prefabricated split-mounting type subway underground station construction method |
| CN107299721A (en) * | 2017-05-22 | 2017-10-27 | 广东省建筑工程集团有限公司 | A kind of precast concrete open tubular column node connecting structure and its construction method |
| CN107327030A (en) * | 2017-08-30 | 2017-11-07 | 刘祥锦 | The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column |
| CN108560715A (en) * | 2018-03-21 | 2018-09-21 | 中建四局第六建筑工程有限公司 | A kind of construction method and operating platform of large diameter steel pipe band of column beam |
| CN108457372A (en) * | 2018-05-02 | 2018-08-28 | 华南理工大学 | A kind of steel core concrete column-steel plate concrete ring beam joint and its construction method |
| WO2019210537A1 (en) * | 2018-05-02 | 2019-11-07 | 华南理工大学 | Joint of concrete-filled steel tube column and annular steel plate concrete beam and construction method therefor |
| US11421414B2 (en) | 2018-05-02 | 2022-08-23 | South China University Of Technology | Concrete-filled steel tubular column-steel plate concrete ring beam joint and construction method thereof |
| CN109138269A (en) * | 2018-10-25 | 2019-01-04 | 上海泰大建筑科技有限公司 | A kind of combined beam structure and its construction method |
| CN109138269B (en) * | 2018-10-25 | 2024-06-07 | 上海泰大建筑科技有限公司 | Combined beam structure and construction method thereof |
| CN109944324A (en) * | 2019-04-04 | 2019-06-28 | 河南绿建建筑科技有限公司 | Steel concrete combo box trestle and the combination assembled structural system of reinforced concrete frame column |
| CN111502010A (en) * | 2019-11-21 | 2020-08-07 | 江苏永联精筑建设集团有限公司 | Method for improving construction quality of large-span stiff concrete beam structure |
| CN111608202A (en) * | 2020-06-23 | 2020-09-01 | 中国建筑第四工程局有限公司 | Reverse construction method basement ring beam steel bar installation method and device |
| CN112900718A (en) * | 2021-01-19 | 2021-06-04 | 同济大学 | Beamless floor system node structure suitable for steel tube or steel tube concrete column |
| CN112900718B (en) * | 2021-01-19 | 2022-06-14 | 同济大学 | Beamless floor system node structure suitable for steel tube or steel tube concrete column |
| CN113982309A (en) * | 2021-11-18 | 2022-01-28 | 石家庄铁道大学 | Structure for additionally arranging overhanging structure on reinforced concrete space node and construction method |
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