CN101487293A - Concrete pouring method for beam-column joints with different strength grades - Google Patents
Concrete pouring method for beam-column joints with different strength grades Download PDFInfo
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- CN101487293A CN101487293A CNA2008101241423A CN200810124142A CN101487293A CN 101487293 A CN101487293 A CN 101487293A CN A2008101241423 A CNA2008101241423 A CN A2008101241423A CN 200810124142 A CN200810124142 A CN 200810124142A CN 101487293 A CN101487293 A CN 101487293A
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- concrete
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- floor
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 10
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A method for pouring concrete with different strength grades on beam-column joints relates to the technical field of construction engineering. The vertical dense-mesh steel wire meshes are arranged around the beam-column joints, and when floor concrete is poured, column concrete cement with the strength grade higher than that of the floor concrete is adopted to pour the beam-column joints in the steel wire meshes. The invention is simple and easy to construct, can greatly improve the strength of the beam-column joint on the floor slab, ensures that the strength grade of the concrete of the wall-attached column with high strength grade is not reduced, the strength grade of the concrete of the column joint with high strength grade at the horizontal structure beam slab and the column joint is not reduced, does not waste the concrete with high strength grade, does not generate construction joints at the junction of the concrete with high and low strength grade, does not form cold joints, is compactly combined, and ensures the engineering quality.
Description
Technical field
The present invention relates to the architectural engineering construction technique field, particularly the floor pouring procedure at highrise building bean column node place.
Background technology
As everyone knows, the steel concrete cylinder that building is used to support is not continuous, on the concrete floor of every layer of formation by the position of the former steel concrete colligation upper strata cylinder reinforcing bar that makes progress.In building engineering construction; regular meeting runs into designing requirement and is higher than the problem of horizontal structure (Vierendeel girder, plate) strength grade of concrete with vertical structure (shear wall, the frame column) strength grade of concrete of one deck, is higher than the problem of wall strength grade of concrete with one deck vertical structure frame column, responde strength grade of concrete.Because when this floor of cast plate, in order to realize the globality of floor, the floorslab concrete strength grade is consistent.But just be lower than column intensity between floor for the position of the cylinder herein concrete strength that supports usefulness, its consequence that causes is well imagined.
Existing following two kinds of job practicess:
1, employing is blocked high lower intensity level concrete boundary formwork and is established, build the concrete of high strength grade earlier, treat to build again after the form removal concrete of low-intensity grade, make like this with a layer vertical member, produce a lot of constuction joints with layer horizontal member, and influence workmanship; Outer wall of basement, wall is different with the responde strength grade of concrete, with the method construction, also easily makes outer wall of basement produce seepage.
2, adopt the pumping commercial concrete to build, the concrete of building the high strength grade earlier is to the top, the concrete of after-pouring low-intensity grade, but because of the slump of pumping of concrete is generally 160～180mm, trickling is far away after vibrating, high strength grade concrete amount can increase much like this, workload is big, poor timing, time has been grown the final set of the concrete edge of high strength grade concrete, lower intensity level concrete does not also cover and builds, and will make the concrete intersection of height strength grade produce cold seam, influences workmanship; Time is too short, the concrete of high strength grade is not initial set also, and the concrete of low-intensity grade has just covered and built, and easily causes the concrete of low-intensity grade to sneak into the concrete position of high strength grade, and the concrete intensity of reduction high strength grade influences workmanship.
Summary of the invention
The object of the invention is to invent a kind of concreting method with different intensity grades for beam column nodes that can improve floor place column intensity.
The present invention is provided with vertical dense mesh around bean column node, in the cast floorslab concrete, adopt the post concrete cement that is higher than the floorslab concrete strength grade that the bean column node in the gauze wire cloth is poured into a mould.
The present invention is simple, be easy to construction, can improve the intensity of bean column node on the floor greatly, the responde strength grade of concrete of high strength grade is not reduced, the post node strength grade of concrete of horizontal structure beam slab, post node place high strength grade does not reduce, do not waste the concrete of high strength grade, high lower intensity level concrete intersection does not produce constuction joint, does not form cold seam, in conjunction with closely knit, guaranteed workmanship.
The distance of described dense mesh and bean column node reinforcing bar is 50 ± 5cm.Keep suitable distance, can further ensure the intensity of beam column body.
The present invention can make the concrete of two kinds of strength grades be combined as a whole again simultaneously in order to cut apart the concrete of height strength grade, and the steel wire diameter of described dense mesh is 0.5～0.9mm; The mesh of dense mesh is 5 * 5～8 * 8mm.
The specific embodiment
1, reinforced bar engineering
The reinforcement fabrication colligation must strict be undertaken by drawing and standard, after the colligation moulding, forbids to trample.
2, dense mesh is installed
At the bean column node place, apart from the about 50 ± 5cm in post limit, fix vertical dense mesh all around.
The steel wire diameter of dense mesh is 0.5～0.9mm, and the mesh of dense mesh is 5 * 5～8 * 8mm.
3, cast floorslab concrete
Employing meets the concrete of floor strength grade pours into a mould the floor beyond the gauze wire cloth with the ground pump, and simultaneously, the post concrete that adopts tower crane, hanging basket to be higher than the beam slab strength grade of concrete is poured into a mould with interior bean column node gauze wire cloth.Bean column node place concrete adopts the secondary vibration method, promptly vibrates once before the concrete initial set again, strengthens the concrete compactness of interface.
4, maintenance
Promptly concrete is carried out maintenance after the concreting 12, keep concrete surface moistening, curing time is no less than 14 days.
Claims (4)
1, concreting method with different intensity grades for beam column nodes, it is characterized in that around bean column node, being provided with vertical dense mesh, in the cast floorslab concrete, adopt the concrete of the post that is higher than the beam slab strength grade of concrete that the bean column node in the gauze wire cloth is poured into a mould.
2, according to the described concreting method with different intensity grades for beam column nodes of claim 1, the distance that it is characterized in that described dense mesh and post limit is 50 ± 5cm.
3, according to the described concreting method with different intensity grades for beam column nodes of claim 1, the steel wire diameter that it is characterized in that described dense mesh is 0.5～0.9mm.
4, according to claim 1 or 2 or 3 described concreting method with different intensity grades for beam column nodes, the mesh that it is characterized in that dense mesh is 5 * 5～8 * 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101241423A CN101487293A (en) | 2008-06-25 | 2008-06-25 | Concrete pouring method for beam-column joints with different strength grades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101241423A CN101487293A (en) | 2008-06-25 | 2008-06-25 | Concrete pouring method for beam-column joints with different strength grades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101487293A true CN101487293A (en) | 2009-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101241423A Pending CN101487293A (en) | 2008-06-25 | 2008-06-25 | Concrete pouring method for beam-column joints with different strength grades |
Country Status (1)
| Country | Link |
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| CN (1) | CN101487293A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174292A (en) * | 2013-03-07 | 2013-06-26 | 山西太行建设开发有限公司 | Pouring construction method of frame structure with concrete nodes of multiple mark numbers |
| CN103572968A (en) * | 2013-11-18 | 2014-02-12 | 济南四建（集团）有限责任公司 | Method for marking construction of newly-stirred pump-concrete with different strength grades |
| CN103790240A (en) * | 2014-01-17 | 2014-05-14 | 洛阳广鑫建设集团有限公司 | Construction method for concrete of different strength grades and on beam-column joints of high-rise building |
| CN104405133A (en) * | 2014-12-17 | 2015-03-11 | 中建五局蚌埠建筑工程有限公司 | Combined high-low grade concrete separator |
| CN104831932A (en) * | 2015-05-27 | 2015-08-12 | 浙江宏超建设集团有限公司 | Construction technology for high-grade concrete column base |
| CN105464219A (en) * | 2014-09-12 | 2016-04-06 | 中建四局第一建筑工程有限公司 | Concrete pouring method for transfer story beam-column nodes and partitions used by method |
| CN106522365A (en) * | 2016-11-21 | 2017-03-22 | 中建八局第四建设有限公司 | Concrete pouring method for joint of transverse beam and vertical column and separation tool |
| CN108130951A (en) * | 2017-11-21 | 2018-06-08 | 中国建筑第八工程局有限公司 | The concrete construction method of column beam slab node |
| CN109024886A (en) * | 2018-09-12 | 2018-12-18 | 中建四局第六建筑工程有限公司 | A kind of crossover node concrete structure and the high low grade control method of concrete |
| CN115749282A (en) * | 2022-12-12 | 2023-03-07 | 广东建科建设咨询有限公司 | Quality control method for concrete with different marks at beam column joint part |
-
2008
- 2008-06-25 CN CNA2008101241423A patent/CN101487293A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174292A (en) * | 2013-03-07 | 2013-06-26 | 山西太行建设开发有限公司 | Pouring construction method of frame structure with concrete nodes of multiple mark numbers |
| CN103572968A (en) * | 2013-11-18 | 2014-02-12 | 济南四建（集团）有限责任公司 | Method for marking construction of newly-stirred pump-concrete with different strength grades |
| CN103572968B (en) * | 2013-11-18 | 2015-09-16 | 济南四建（集团）有限责任公司 | Newly mix the sign construction method of pumping of concrete different intensity grades |
| CN103790240A (en) * | 2014-01-17 | 2014-05-14 | 洛阳广鑫建设集团有限公司 | Construction method for concrete of different strength grades and on beam-column joints of high-rise building |
| CN105464219A (en) * | 2014-09-12 | 2016-04-06 | 中建四局第一建筑工程有限公司 | Concrete pouring method for transfer story beam-column nodes and partitions used by method |
| CN104405133A (en) * | 2014-12-17 | 2015-03-11 | 中建五局蚌埠建筑工程有限公司 | Combined high-low grade concrete separator |
| CN104405133B (en) * | 2014-12-17 | 2016-03-09 | 中建五局蚌埠建筑工程有限公司 | Combined high-low grade concrete separator |
| CN104831932A (en) * | 2015-05-27 | 2015-08-12 | 浙江宏超建设集团有限公司 | Construction technology for high-grade concrete column base |
| CN106522365A (en) * | 2016-11-21 | 2017-03-22 | 中建八局第四建设有限公司 | Concrete pouring method for joint of transverse beam and vertical column and separation tool |
| CN108130951A (en) * | 2017-11-21 | 2018-06-08 | 中国建筑第八工程局有限公司 | The concrete construction method of column beam slab node |
| CN109024886A (en) * | 2018-09-12 | 2018-12-18 | 中建四局第六建筑工程有限公司 | A kind of crossover node concrete structure and the high low grade control method of concrete |
| CN115749282A (en) * | 2022-12-12 | 2023-03-07 | 广东建科建设咨询有限公司 | Quality control method for concrete with different marks at beam column joint part |
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Open date: 20090722 |