CN104695555A - Construction process for joint of large-section beam column of different concrete strength grades - Google Patents
Construction process for joint of large-section beam column of different concrete strength grades Download PDFInfo
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- CN104695555A CN104695555A CN201310649752.6A CN201310649752A CN104695555A CN 104695555 A CN104695555 A CN 104695555A CN 201310649752 A CN201310649752 A CN 201310649752A CN 104695555 A CN104695555 A CN 104695555A
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Abstract
The invention discloses a construction process for a joint of a large-section beam column of different concrete strength grades. The process comprises the followings steps: binding steel bars of the beam column, placing a steel wire mesh, binding to fix the steel wire mesh, sealing lateral templates of the beam, inserting steel bar heads, pouring concrete, pulling the steel bar heads out, and forming the concrete. By adopting the construction process provided by the invention, requirements for respective concrete strength grades of a column body and a beam body can be met, strength of the joint of the beam column can be well ensured, integration of a beam and a column is realized through whole binding of the steel bars of the beam column, concrete of different grades can be poured between the beam and the column is realized through the steel wire mesh and the steel bar heads, and the construction process is simple in construction, and convenient to operate, saves the materials greatly on the basis of ensuring use safety of a building structure farthest and is worthy of being popularized in the construction industry.
Description
Technical field
The present invention
relate to the large-section beam Column border node construction technology that a kind of strength grade of concrete is different, belong to strength grade different bean column node concrete construction process technical field.
Background technology
along with the develop rapidly of Chinese national economy, in order to improve national lodging condition and office conditions, high level even construction of super highrise building gets more and more.In order to the means by " strong column and weak beam ", " strong shear capacity and weak bending capacity ", " the weak rod member of strong node ", realize the structural safety three level performance objective of " no damage in small earthquake, middle shake can be repaiied, no collapsing with strong earthquake ", beam cross-section is comparatively large and beam column strength grade of concrete difference is larger.If lower intensity level concrete (beam slab concrete) is built into (in post or beam column crossed node place) in high strength component, by the use safety of the whole building structure of impact, if high strength concrete is built in lower intensity level concrete component, the waste of material will be caused.
Summary of the invention
the object of the invention is to, the large-section beam Column border node construction technology providing a kind of strength grade of concrete different.The heavy in section beam column section header that any concrete rank is differed greatly construct, can guarantee building structure use safety and do not cause the waste of material, and construction is more for convenience, thus overcomes the deficiencies in the prior art.
content of the present invention:
the large-section beam Column border node construction technology that strength grade of concrete is different, this construction technology comprises the following steps:
step one, beam column reinforcing bar binding: described beam column reinforcing bar binding, be post indulged muscle according to design drawing requirement, column tie-bar, beam indulge muscle, beam stirrup, beam lacing wire colligation are fixed.
step 2, gauze wire cloth colligation: to be fixed in plane that in this segment limit inner beam, one of them beam stirrup and beam lacing wire form in the beam that gauze wire cloth is placed in distance bean column node outward flange 25cm ~ 75cm, finally with steel wire, gauze wire cloth colligation to be indulged on muscle at corresponding beam lacing wire, beam stirrup, beam.
step 3, steel bar end are installed: be uniformly placed on gauze wire cloth beam column section header side dorsad endways for steel bar end.
step 4, concreting: after laying template, first build post concrete, after-pouring beam slab concrete, when building post concrete, column cap and its underpart should first vibration compactings, vibrate together with when the column cap concrete of beam slab intersection is until beam slab concreting, but its time interval must not exceed the concrete initial setting time.
step 5, concrete formation: bar dowel is extracted when carrying out first time receipts face, for having enough to meet the need use, concrete formation, column beam joint water seasoning.
in the large-section beam Column border node construction technology that above-mentioned strength grade of concrete is different, described gauze wire cloth specification is 1.5mm Ⅹ 1.5mm Ⅹ 0.6mm, and this gauze wire cloth length and width size 3mm ~ 10mm larger than beam section.
in the large-section beam Column border node construction technology that above-mentioned strength grade of concrete is different, between described steel bar end, arrangement pitches is 20mm ~ 30mm.
in the large-section beam Column border node construction technology that above-mentioned strength grade of concrete is different, described steel bar end diameter is 18mm ~ 36mm, and steel bar end length is than beam section height height 8cm ~ 20cm.
compared with prior art, the present invention is applicable to in the different bean column node concrete construction of strength grade.Pass through the present invention, both cylinder and the strength grade of concrete requirement separately of beam body can have been realized, can ensure bean column node intensity very well again, be bundled by beam column steel bar overall, realizing is an entirety between beam column, again by gauze wire cloth and steel bar end, can realize again building different brackets concrete between beam column, this invention not only construction is simple, easy to operate, and ensure building structure use safety has saved material greatly can maximize, be worth the popularization of building trade.
Accompanying drawing explanation
accompanying drawing 1 is construction schematic diagram of the present invention;
accompanying drawing 2 is construction A-A schematic diagram of the present invention;
accompanying drawing 3 is the structural representation of central sill body of the present invention.
being labeled as in accompanying drawing: 1-cylinder, 2-beam body, 3-beam indulge muscle, 4-beam stirrup, 5-bean column node, 6-gauze wire cloth, 7-steel bar end, the lacing wire of 8-beam.
Detailed description of the invention
below in conjunction with accompanying drawing, the present invention is further described in detail, but not as any limitation of the invention.
embodiment one: the large-section beam Column border node construction technology that a kind of strength grade of concrete is different, as shown in the figure: this construction technology comprises the following steps:
step one, beam column reinforcing bar binding: described beam column reinforcing bar binding, be post indulged muscle according to design drawing requirement, column tie-bar, beam indulge muscle, beam stirrup, beam lacing wire colligation are fixed.
step 2, gauze wire cloth colligation: gauze wire cloth specification adopts 1.5mm Ⅹ 1.5mm Ⅹ 0.6mm model, and this gauze wire cloth length and width size 3mm ~ 10mm larger than beam section.When beam section area is greater than 0.45m
2
time, to be fixed in plane that in this segment limit inner beam, one of them beam stirrup and beam lacing wire form in the beam that gauze wire cloth is placed in distance bean column node outward flange 50cm ~ 75cm, finally with steel wire, gauze wire cloth colligation to be indulged on muscle at corresponding beam lacing wire, beam stirrup, beam.
step 3, steel bar end install: steel bar end adopt diameter be 18mm ~ 36mm plain bars, and steel bar end length than beam section height height 8cm ~ 20cm(according to on-site actual situations, be advisable can conveniently extract steel bar end).Uniformly gauze wire cloth beam column section header side (between steel bar end, arrangement pitches is 20mm ~ 30mm, and spacing generally selects 25mm) is dorsad placed on endways for steel bar end.
step 4, concreting: after laying template, first build post concrete, after-pouring beam slab concrete, when building post concrete, column cap and its underpart should first vibration compactings, at close wouldn't vibrate with the concrete of beam body intersection (height that should vibrate depending on concrete fluidity determining first time), the concrete at column cap position should be no less than 10cm in high ejecting plate face, the concrete that column cap does not vibrate vibrates together when beam slab concreting, but its time interval must not exceed the concrete initial setting time.
step 5, concrete formation: bar dowel is extracted when carrying out first time receipts face, for having enough to meet the need use, concrete formation, column beam joint water seasoning.
embodiment two: the large-section beam Column border node construction technology that a kind of strength grade of concrete is different, as shown in the figure: this construction technology comprises the following steps:
step one, beam column reinforcing bar binding: described beam column reinforcing bar binding, be post indulged muscle according to design drawing requirement, column tie-bar, beam indulge muscle, beam stirrup, beam lacing wire colligation are fixed.
step 2, gauze wire cloth colligation: gauze wire cloth specification adopts 1.5mm Ⅹ 1.5mm Ⅹ 0.6mm model, and this gauze wire cloth length and width size 3mm ~ 10mm larger than beam section.When beam section area is less than 0.45m
2
time, to be fixed in plane that in this segment limit inner beam, one of them beam stirrup and beam lacing wire form in the beam that gauze wire cloth is placed in distance bean column node outward flange 25cm ~ 50cm, finally with steel wire, gauze wire cloth colligation to be indulged on muscle at corresponding beam lacing wire, beam stirrup, beam.
step 3, steel bar end install: steel bar end adopt diameter be 18mm ~ 36mm plain bars, and steel bar end length than beam section height height 8cm ~ 20cm(according to on-site actual situations, be advisable can conveniently extract steel bar end).Uniformly gauze wire cloth beam column section header side (between steel bar end, arrangement pitches is 20mm ~ 30mm, and spacing generally selects 25mm) is dorsad placed on endways for steel bar end.
step 4, concreting: after laying template, first build post concrete, after-pouring beam slab concrete, when building post concrete, column cap and its underpart should first vibration compactings, at close wouldn't vibrate with the concrete of beam body intersection (height that should vibrate depending on concrete fluidity determining first time), the concrete at column cap position should be no less than 10cm in high ejecting plate face, the concrete that column cap does not vibrate vibrates together when beam slab concreting, but its time interval must not exceed the concrete initial setting time.
step 5, concrete formation: bar dowel is extracted when carrying out first time receipts face, for having enough to meet the need use, concrete formation, column beam joint water seasoning.
Claims (4)
1. the large-section beam Column border node construction technology that strength grade of concrete is different, is characterized in that this construction technology comprises the following steps:
Step one, beam column reinforcing bar binding: described beam column reinforcing bar binding, be post indulged muscle according to design drawing requirement, column tie-bar, beam indulge muscle, beam stirrup, beam lacing wire colligation are fixed;
Step 2, gauze wire cloth colligation: to be fixed in plane that in this segment limit inner beam, one of them beam stirrup and beam lacing wire form in the beam that gauze wire cloth is placed in distance bean column node outward flange 25cm ~ 75cm, finally with steel wire, gauze wire cloth colligation to be indulged on muscle at corresponding beam lacing wire, beam stirrup, beam;
Step 3, steel bar end are installed: be uniformly placed on gauze wire cloth beam column section header side dorsad endways for steel bar end;
Step 4, concreting: after laying template, first build post concrete, after-pouring beam slab concrete, when building post concrete, column cap and its underpart should first vibration compactings, vibrate together with when the column cap concrete of beam slab intersection is until beam slab concreting, but its time interval must not exceed the concrete initial setting time;
Step 5, concrete formation: bar dowel is extracted when carrying out first time receipts face, for having enough to meet the need use, concrete formation, column beam joint water seasoning.
2. the large-section beam Column border node construction technology that strength grade of concrete is different according to claim 1, is characterized in that: described gauze wire cloth specification is 1.5mm Ⅹ 1.5mm Ⅹ 0.6mm, and this gauze wire cloth length and width size 3mm ~ 10mm larger than beam section.
3. the large-section beam Column border node construction technology that strength grade of concrete is different according to claim 1, is characterized in that: described steel bar end diameter is 18mm ~ 36mm, and steel bar end length is than beam section height height 8cm ~ 20cm.
4. the large-section beam Column border node construction technology that strength grade of concrete is different according to claim 1, is characterized in that: between described steel bar end, arrangement pitches is 20mm ~ 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310649752.6A CN104695555A (en) | 2013-12-06 | 2013-12-06 | Construction process for joint of large-section beam column of different concrete strength grades |
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| CN201310649752.6A CN104695555A (en) | 2013-12-06 | 2013-12-06 | Construction process for joint of large-section beam column of different concrete strength grades |
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| CN104695555A true CN104695555A (en) | 2015-06-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951988A (en) * | 2016-07-20 | 2016-09-21 | 河北科工建筑工程集团有限公司 | Different-strength-grade concrete structure of beam-column joint and construction technology of concrete structure |
| CN106703189A (en) * | 2017-01-06 | 2017-05-24 | 中建七局(上海)有限公司 | Construction method of concrete separation screen plate for concrete with different grades at beam column nodes based on BIM |
| CN107724680A (en) * | 2016-08-11 | 2018-02-23 | 五冶集团上海有限公司 | A kind of high-storey building frame structure beam-column node construction method |
| CN112502437A (en) * | 2020-07-30 | 2021-03-16 | 河北建设集团天辰建筑工程有限公司 | Different intensity grade concrete placement shaping isolating device of beam column node |
| CN114232812A (en) * | 2021-12-29 | 2022-03-25 | 中铁建设集团有限公司 | Unequal strength wall beam joint based on steel plate hoop constrained concrete superposed short column |
Citations (4)
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| JP2001303666A (en) * | 2000-04-24 | 2001-10-31 | Kajima Corp | Joint section structure between reinforced concrete column and steel frame beam |
| CN1560393A (en) * | 2004-02-25 | 2005-01-05 | 华南理工大学 | Connection structure of connection of floor beam and steel pipe concrece pole and construction method thereof |
| CN102359279A (en) * | 2011-09-11 | 2012-02-22 | 威海建设集团股份有限公司 | Improved method for installing reinforcement cage in beam column joint zone of reinforced concrete frame structure |
| CN103088915A (en) * | 2012-08-16 | 2013-05-08 | 杨众 | Cast-in-site column with column cap and construction method |
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2013
- 2013-12-06 CN CN201310649752.6A patent/CN104695555A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001303666A (en) * | 2000-04-24 | 2001-10-31 | Kajima Corp | Joint section structure between reinforced concrete column and steel frame beam |
| CN1560393A (en) * | 2004-02-25 | 2005-01-05 | 华南理工大学 | Connection structure of connection of floor beam and steel pipe concrece pole and construction method thereof |
| CN102359279A (en) * | 2011-09-11 | 2012-02-22 | 威海建设集团股份有限公司 | Improved method for installing reinforcement cage in beam column joint zone of reinforced concrete frame structure |
| CN103088915A (en) * | 2012-08-16 | 2013-05-08 | 杨众 | Cast-in-site column with column cap and construction method |
Non-Patent Citations (1)
| Title |
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| 王宗昌: "《建筑工程质量通病预防控制实用技术》", 30 November 2007 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951988A (en) * | 2016-07-20 | 2016-09-21 | 河北科工建筑工程集团有限公司 | Different-strength-grade concrete structure of beam-column joint and construction technology of concrete structure |
| CN107724680A (en) * | 2016-08-11 | 2018-02-23 | 五冶集团上海有限公司 | A kind of high-storey building frame structure beam-column node construction method |
| CN106703189A (en) * | 2017-01-06 | 2017-05-24 | 中建七局(上海)有限公司 | Construction method of concrete separation screen plate for concrete with different grades at beam column nodes based on BIM |
| CN112502437A (en) * | 2020-07-30 | 2021-03-16 | 河北建设集团天辰建筑工程有限公司 | Different intensity grade concrete placement shaping isolating device of beam column node |
| CN114232812A (en) * | 2021-12-29 | 2022-03-25 | 中铁建设集团有限公司 | Unequal strength wall beam joint based on steel plate hoop constrained concrete superposed short column |
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Application publication date: 20150610 |