CN104389437A - Construction method for connecting steel pipe concrete column connection structure to reinforced concrete column - Google Patents
Construction method for connecting steel pipe concrete column connection structure to reinforced concrete column Download PDFInfo
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- CN104389437A CN104389437A CN201410652123.3A CN201410652123A CN104389437A CN 104389437 A CN104389437 A CN 104389437A CN 201410652123 A CN201410652123 A CN 201410652123A CN 104389437 A CN104389437 A CN 104389437A
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Abstract
The invention relates to a construction method for connecting a steel pipe concrete column connection structure to a reinforced concrete column. The construction method is suitable for a floor raising and rebuilding project. A separation type tightening protection barrel is arranged at the end part of an original column, and three tightening rings are arranged on the protection barrel and are anchored by bolts; the bottom end of a section steel column is arranged at the middle part position of the separation type tightening protection barrel; a connection steel plate is arranged at the bottom of the section steel column, and two reinforcement ribs welded with the connection steel plate are symmetrically arranged on a web plate of the section steel column; a plurality of holes are pre-drilled in the connection steel plate, so that longitudinal ribs, which are exposed after concrete at a certain height is drilled off, of the original column can pass through and are welded with the connection steel plate through welding nuts. The construction method is high in construction speed and high in connection strength and has higher technical economical benefits.
Description
Technical field
The present invention relates to the construction method of direct type steel column syndeton on a kind of reinforced concrete post, be applicable to floor and increase and alteration work, belong to building engineering technical field.
Background technology
Steel column is concrete column embedded set shaped steel combination component, and steel column is as the main body supporting member of building.Steel column compares general reinforced concrete post, although steel using amount is a little large a little, resistance to deformation and anti-seismic performance good.And in work progress, shaped steel has larger bearing capacity, can be used as scaffold and use.Present stage China commonly use relevant to steel column be profile steel concrete column, profile steel concrete column is at the peripheral concreting of shaped steel.
Increase and alteration work for floor, first to solve be exactly pillar increase problem.The floor of China increased and generally selected two kinds of methods with alteration work pillar present stage: 1, have the electroslag pressure welding that just adopts of reserving rib to be connected; 2, chemically-planted steel bar is just adopted to connect without reserving rib.Above two kinds of method reality are all adopt connecting reinforcement, and the mode of concreting connects post.These two kinds of method construction periods are long, and the large and common concrete component of cost is more and more difficult to meet the building and instructions for use that improve constantly.
Along with the economic development of China, all kinds of rooms problem constantly occurs.At present, China has extensively carried out the way that newly-built and old room add-story reconstruction combines, and solves the problem of all kinds of rooms deficiency.According to statistics, in all kinds of houses that the whole nation is built, the house of 1/3 ~ 1/4 is had to have add-story reconstruction condition.After adopting add-story reconstruction scheme, than " tearing open old newly-built " scheme, there is more advantage.But for add-story reconstruction, but there is no practicable method to carry out.For the phenomenon of domestic house land used resource anxiety, country solves this problem in the urgent need to effective method.
Therefore, need badly at present and seek that a kind of bonding strength is high, speed of application, do not increase cost and the syndeton that can extend reinforced concrete post height seems very important again.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of bonding strength that effectively can improve former concrete column and steel column is provided, accelerate speed of application, the reinforced concrete post of minimizing environmental pollution connects the construction method of steel core concrete column syndeton.
For realizing above-mentioned technical purpose, present invention employs following technical scheme:
The construction method of direct type steel column syndeton on this reinforced concrete post, mainly comprises the following steps:
1) cut end concrete: cut by the above concrete of former concrete column design attitude, expose former post and indulge muscle, excision stirrup, and vertical muscle is cleaned;
2) make steel column 1 and junction steel plate: man-hour is added to steel column and junction steel plate, is welded with steel column by junction steel plate in advance, and the web of pre-processed ribs and steel column and junction steel plate are welded;
3) steel column is fixed on former concrete column end: the steel column combined is hung on the capital of former concrete column, junction steel plate is reserved with hole and former post, and to indulge muscle position corresponding, make the hole that vertical muscle is reserved through junction steel plate, entangle former post with welded nut and indulge muscle, and indulge muscle with former post and junction steel plate welds;
4) steel pile casting is set: be enclosed within former concrete column by the separate type lock ring casing processed, then lock ring hoop on separate type lock ring casing, by bolt tightening, fix;
5) end is built: using separate type lock ring casing as permanent template, and at former concrete column end young concrete, overall maintenance is shaping.
As preferably: step 4) in, lock ring ring is the road arranged at equal intervals according to the size uniform of separate type lock ring steel pile casting.
As preferably: step 5) in, should symmetrical construction during concreting, note when vibrating guaranteeing not disturbance steel column and former concrete column.
As preferably: step 2) in, described ribs is between steel column web symmetrically arranged two.
The invention has the beneficial effects as follows:
1, the setting of separate type lock ring casing serves the effect of template, strengthen the bonding strength of steel column and former concrete column, and separate type casing is easy for installation as permanent part simultaneously.
2, lock ring ring strengthens the frictional resistance of separate type lock ring casing and former concrete column, further increases the bearing capacity of pillar.
3, ribs to be arranged so that steel column is connected with junction steel plate more tight, also improve the resistance to capsizing of steel column.
4, nut be arranged so that the combination that muscle indulged by junction steel plate and former post is more tight, make the connection of steel column and former concrete column more firm.
5, former column end cast-in-situ concrete makes steel column embedded in concrete column, substantially increases the concatenation ability of the two.
Accompanying drawing explanation
Fig. 1 is direct type steel column syndeton schematic perspective view on reinforced concrete post;
Fig. 2 is direct type steel column joint face schematic diagram on reinforced concrete post;
Fig. 3 is direct type steel column syndeton sectional drawing on reinforced concrete post.
Description of reference numerals: steel column 1; Ribs 2; Lock ring ring 3; Bolt 4; Muscle 5 indulged by former post; Concrete 6; Junction steel plate 7; Welded nut 8; Separate type lock ring casing 9; Former concrete column 10.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further.Although the present invention will be described in conjunction with preferred embodiment, should know, and not represent and limit the invention in described embodiment.On the contrary, the present invention will contain can be included in attached claims limit scope of the present invention in alternative, modified and equivalent.
As shown in Figures 1 to 3, the present invention includes former concrete column and steel column, former concrete column 10 concrete grade is C30, and diameter is 600mm, vertical muscle diameter 18mm, protective layer thickness 25mm.Steel column 1 is the H profile steel of Q235, high 200mm, wide 200mm, web thickness 8mm, wing plate thickness 12mm.
By former concrete column 10 end upper concrete chisel removal, cut height 500mm, expose former post and indulge muscle 5, excision stirrup, and cleaned.
The thick Q235A steel plate of 10mm is adopted to make the circular junction steel plate 7 of diameter 580mm and the isosceles right triangle ribs 2 of right-angle side 200mm.Junction steel plate 7 is welded on steel column 1 bottom, and on the web that two ribs 2 are symmetrically welded at steel column 1 and junction steel plate 7.Wherein the circular hole being circumferentially evenly drilled with 8 20mm diameters of diameter 550mm on circular junction steel plate 7, passes through so that muscle 5 indulged by former post.
The Q235A steel plate that separate type lock ring casing 9 adopts 10mm thick rolls and forms, and two lobe casings can be closely integrated into internal diameter 600mm, the hollow original post of external diameter 620mm, high 1000mm.Lock ring ring 3 adopts the thick Q235A steel plate of 10mm to roll equally and forms, and is set to 40mm wide, internal diameter 620mm, can fits tightly, and select M30 bolt 4 in order to fastening with separate type lock ring casing 9.
Again the steel column 1 of the band ribs 2 made, junction steel plate 7 is winched to former concrete column 10 to push up, former post is allowed to indulge muscle 5 through the circular hole that junction steel plate 7 is preset, steel column 1 is set to and cuts end, entangle former post with welded nut 8 subsequently and indulge muscle 5, and welded nut 8 and former post are indulged muscle 5 and junction steel plate 7 is welded to each other.
Be enclosed within former concrete column 10 by the two lobe separate type lock ring casings 9 made subsequently, the junction steel plate 7 bottom steel column 1 is positioned at the medium position of casing, is then loaded onto by lock ring ring 3, tightens with bolt 4.
Finally concreting in the space that separate type lock ring casing 9 and steel column 1 surround, do template with separate type lock ring casing 9, overall maintenance is shaping.
Above-mentioned detailed description of the invention does not limit technical scheme of the present invention in any form, and the technical scheme that the mode that every employing is equal to replacement or equivalent transformation obtains all drops on protection scope of the present invention.
Claims (4)
1. the construction method of direct type steel column syndeton on reinforced concrete post, mainly comprises the following steps:
1) cut end concrete: cut by the above concrete of former concrete column (10) design attitude, expose former post and indulge muscle (5), excision stirrup, and vertical muscle is cleaned;
2) steel column (1) and junction steel plate (7) is made: man-hour is added to steel column (1) and junction steel plate (7), in advance junction steel plate (7) is welded with steel column (1), and the web of pre-processed ribs (2) and steel column (1) and junction steel plate (7) are welded;
3) steel column (1) is fixed on former concrete column (10) end: the steel column combined (1) is hung on the capital of former concrete column (10), junction steel plate (7) is reserved with hole and former post, and to indulge muscle (5) position corresponding, make the hole that vertical muscle is reserved through junction steel plate (7), entangle former post with welded nut (8) and indulge muscle (5), and indulge muscle (5) with former post and junction steel plate (7) welds;
4) steel pile casting is set: be enclosed within former concrete column (10) by the separate type lock ring casing (9) processed, then lock ring ring (3) is bound round on separate type lock ring casing (9), bolt (4) is tightened, fixes;
5) end is built: using separate type lock ring casing (9) as permanent template, and in former concrete column (10) end young concrete (6), overall maintenance is shaping.
2. the construction method of direct type steel column syndeton on reinforced concrete post according to claim 1, it is characterized in that: step 4) in, lock ring ring (3) is (3) road arranged at equal intervals according to the size uniform of separate type lock ring steel pile casting (9).
3. the construction method of direct type steel column syndeton on reinforced concrete post according to claim 1, it is characterized in that: step 5) in, answer symmetrical construction time concreting (6), note when vibrating guaranteeing not disturbance steel column (1) and former concrete column (10).
4. the construction method of direct type steel column syndeton on reinforced concrete post according to claim 1, is characterized in that: step 2) in, described ribs (2) is between steel column (1) web symmetrically arranged two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652123.3A CN104389437B (en) | 2014-11-17 | 2014-11-17 | A kind of reinforced column connects the constructional method that steel column connects structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410652123.3A CN104389437B (en) | 2014-11-17 | 2014-11-17 | A kind of reinforced column connects the constructional method that steel column connects structure |
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| CN104389437A true CN104389437A (en) | 2015-03-04 |
| CN104389437B CN104389437B (en) | 2016-06-08 |
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| CN201410652123.3A Expired - Fee Related CN104389437B (en) | 2014-11-17 | 2014-11-17 | A kind of reinforced column connects the constructional method that steel column connects structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804428A (en) * | 2016-03-25 | 2016-07-27 | 浙江省建筑设计研究院 | Manufacturing method of vertical deformation control structure of additionally-arranged structure column |
| CN105863297A (en) * | 2016-06-15 | 2016-08-17 | 福建江夏学院 | Reinforced concrete frame column storey-adding transform structure and construction method |
| CN109424072A (en) * | 2017-08-23 | 2019-03-05 | 香港华艺设计顾问(深圳)有限公司 | The connecting node and construction method of spacer bar concrete column on a kind of girder steel |
| CN109505379A (en) * | 2017-09-14 | 2019-03-22 | 润弘精密工程事业股份有限公司 | Load-bearing rod structure and the workshop for using the structure |
| TWI656263B (en) * | 2017-09-14 | 2019-04-11 | 潤弘精密工程事業股份有限公司 | Structure of load-bearing columns and factory using the same |
| CN113338615A (en) * | 2021-07-05 | 2021-09-03 | 中建科工集团有限公司 | A mould for pouring strength nature post |
| CN113982305A (en) * | 2021-10-27 | 2022-01-28 | 上海建工二建集团有限公司 | Force transmission node of reconstruction and reconstruction structure and construction method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804428A (en) * | 2016-03-25 | 2016-07-27 | 浙江省建筑设计研究院 | Manufacturing method of vertical deformation control structure of additionally-arranged structure column |
| CN105863297A (en) * | 2016-06-15 | 2016-08-17 | 福建江夏学院 | Reinforced concrete frame column storey-adding transform structure and construction method |
| CN109424072A (en) * | 2017-08-23 | 2019-03-05 | 香港华艺设计顾问(深圳)有限公司 | The connecting node and construction method of spacer bar concrete column on a kind of girder steel |
| CN109505379A (en) * | 2017-09-14 | 2019-03-22 | 润弘精密工程事业股份有限公司 | Load-bearing rod structure and the workshop for using the structure |
| TWI656263B (en) * | 2017-09-14 | 2019-04-11 | 潤弘精密工程事業股份有限公司 | Structure of load-bearing columns and factory using the same |
| CN109505379B (en) * | 2017-09-14 | 2021-08-24 | 润弘精密工程事业股份有限公司 | Bearing column structure and plant using same |
| CN113338615A (en) * | 2021-07-05 | 2021-09-03 | 中建科工集团有限公司 | A mould for pouring strength nature post |
| CN113982305A (en) * | 2021-10-27 | 2022-01-28 | 上海建工二建集团有限公司 | Force transmission node of reconstruction and reconstruction structure and construction method thereof |
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| CN104389437B (en) | 2016-06-08 |
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Inventor after: Wu Zerui Inventor before: Wang Xinquan |
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Effective date of registration: 20170620 Address after: Luohu District Baoan road Shenzhen city Guangdong province 518000 No. 3083 Caiwuwei development building 2101 Patentee after: SHENZHEN GOLDEN CENTURY ENGINEERING INDUSTRY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310003 City Ring Road No. 63 in the center of wealth (Office) Room 405 Patentee before: HANGZHOU JIANGRUN TECHNOLOGY Ltd. |
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Granted publication date: 20160608 Termination date: 20211117 |