CN104775620B - The complete fast construction method of high-rise frame node different intensity grades concrete sort permutation - Google Patents
The complete fast construction method of high-rise frame node different intensity grades concrete sort permutation Download PDFInfo
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- CN104775620B CN104775620B CN201510088624.8A CN201510088624A CN104775620B CN 104775620 B CN104775620 B CN 104775620B CN 201510088624 A CN201510088624 A CN 201510088624A CN 104775620 B CN104775620 B CN 104775620B
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Abstract
The invention discloses a kind of high-rise frame node different intensity grades concrete sort permutation complete construction method, including the construction of core area hoop reinforcement cage, the transport of concrete, the pumping of concrete, concrete pour smash, the maintenance of concrete, the step such as joint reinforcing bar construction measure.The stirrup of non-corner node area part is first made hoop reinforcement cage by the present invention, then the high strength concrete of lower floor's post only need to be poured onto this layer of beam bottom, this layer of beam slab and non-corner node area are all poured using the relatively lower intensity level concrete unification of floor beam slab, beam column corner node area is directly poured according to post strength grade of concrete, it is to avoid the construction problem such as occur beam column division surface construction wrong and different strength concrete simultaneously to pour.This construction method is more quick than traditional construction method, ensure that quality is easy to operate.
Description
The application is application number " 201310362276.X ", the applying date：2013.8.20, " high-rise frame node is different for title
The divisional application of strength grade concrete sort permutation complete construction method ".
Technical field
The present invention relates to a kind of high-rise frame node different intensity grades concrete sort permutation complete construction method.
Background technology
In high-storey building frame structure, the axial compression ratio for meeting post requires, and controls column section to increase room simultaneously as far as possible
Room uses space.Post design becomes a kind of inevitable choice using higher-strength grade concrete, and for by the floor based on curved
For beam slab, the concrete from higher-strength grade is not need and unfavorable.
《Technical specification for concrete structures of high-rise building》The design and construction of beam column node area concrete is not made bright
True regulation, the domestic research to node district stress performance is not very comprehensive；At traditional method node, reinforcing bar is crisscross, and
Beam-ends styletable and node district reinforcing bar are required for encrypting, and be not only difficult to constructing operation, and concrete strength also cannot be well
Ensure, there is very big hidden danger of quality.
Traditional method is to adopt 45 at 1 times of deck-molding of styletableoFast-easy closing-up net is separated, then by node district and post
Concrete is poured into a mould together, pours into a mould beam slab concrete before post concrete initial set again.This method is there is problems that have：①
45oFaying surface is difficult to realize, and 2. the front pillar concrete in cast beam slab concrete have passed through the presetting period.Once and this point
Every faying surface do bad, then be easy to beam-ends occur failure by shear.And the design in Concrete Structures of Tall Building with
In construction, this problem can not possibly be avoided again.Therefore, it is necessary to the node different to slab column concrete strength carries energy
Power, deformability, energy dissipation capacity are further studied.
Content of the invention
It is an object of the invention to provide a kind of easy construction, the high-rise frame node different intensity grades of favorable working performance
Concrete sort permutation complete construction method.
The technical solution of the present invention is：
A kind of high-rise frame node different intensity grades concrete sort permutation complete construction method, is characterized in that：Including following
Step：
（One）The construction of core area hoop reinforcement cage：
（A）A hoop reinforcement cage made by node district stirrup, post is indulged muscle and holds together in cage；The specific practice of hoop reinforcement cage is：
1）Stirrup specification machine-shaping by requirement in structure chart；
2）The reinforcing bar of φ 12 is placed in the middle part of every side of stirrup periphery as additional vertical muscle；
3）Stirrup is welded into hoop reinforcement cage with additional vertical muscle point by stirrup spacing on request；
4）The maximum deck-molding at each node of node hoop reinforcement cage height is defined；
（B）Several short round steel are arranged on beam position, as the skeleton supporting beam steel；Beam lower rebar is inserted in respectively and sets
The beam hoop that meter requires, enters the setting of cross girders lower rebar from low to high, beam bottom reinforcing bar is stretched into and its elevation institute from Beam Elevation
At the corresponding hoop reinforcement cage in position；
（C）Beam longitudinal structure muscle stretches into hoop reinforcement cage corresponding with its position；
（D）Penetrate back from low to high according to back elevation and indulge muscle, and the top of guarantee girder is indulged muscle and indulged at secondary beam top
Above muscle, then vertical muscle is stretched in node district hoop reinforcement cage；
（E）By the beam stirrup spacing of design requirement, beam stirrup is uniformly spread out, and colligation becomes beam reinforcement cages；Beam if there are
Longitudinal structure reinforcing bar and S-shaped contact stirrup, and also the perpendicular limb of beam hoop is caught in colligation respectively on beam hoop；
（F）After having checked the bar gauge of beam, lay down the short round steel of support beam muscle, beam muscle is sunk together with node hoop reinforcement cage
Enter in mould；
（G）With galvanized wire, hoop reinforcement cage and post are indulged muscle colligation to get up；
（Two）The transport of concrete：According to transportation route mileage, determine the quantity of concrete mixing and transporting car；Concrete stirs
Mix transport vehicle and ensure good working order；
（Three）The pumping of concrete
（1）Scene, by arrangement and method for construction requirement stringing, checks in pipe whether there is concrete residue before stringing, for reducing pumping
Pressure loss pipeline fixation firm, especially inclined tube and vertical tube；
（2）First clear water moistening pipeline is used before pumping, then with cement mortar lubrication piping and pump machine；
（3）The amount of concrete of hopper keeps being not less than 20cm suitable for reading, in order to avoid pump machine inhalation rate is low or blocks up because sucking air
Plug；
（4）Set up position laying bamboo slab rubber passage in pump line, prevention connect concrete when tearing pump line open be scattered cause dirty to reinforcing bar
Dye；When rotating material distributing machine, wrap discharge end with woven bag, in order to avoid the beam slab steel not poured in pollution material distributing machine rotating range
Muscle；
（Four）Pouring of concrete is smash
（1）First pour vertical wall, post, then pour horizontal beam, plate, beam-column joint core, when having high-low bay, first pour low across
Position concrete, pours high across position concrete before its initial set.When low have wall, post high-strength grade concrete across position when,
Should first pour to low across top of the plate position；
（2）Lengthen poker vibrator using Φ 50 to vibrate beam column concrete, take Φ 30 to lengthen insertion for node district
Formula vibrator vibrates；
（3）, vibrator should insert soon and pull out slowly, the time of staying of often vibrating needs 20～30 seconds, and spacing of vibrating is not more than 50
, it is deep that vibrating spear should insert next layer 50；
（4）Construction area division principle：The concrete of the high and low grade to pour in region finally pours time difference not
Exceed and deduct 2h setting time and be advisable；During construction, for guaranteeing that concrete construction sews up raft quality, constructed using tower crane is motor-driven
Sew up pouring of raft, to control the unstability of concrete initial set time；
（5）When pouring walling, post concrete, placement layer by layer vibrates；Before concrete initial set, pour beam slab therewith；When pouring
The core space intensive to wall beam, node of column and beam reinforcing bar, varying strength concrete intersection, strengthen vibrating, prevent leakage is shaken phenomenon, really
Protect density and the design strength of beam-column joint core concrete；
（Five）The maintenance of concrete
（1）After concreting finishes, surface maintenance takes plastic covering thin film to add a cover straw bag watering maintenance, prevents from mixing
Solidifying soil internal moisture evaporation, and keep concrete surface to moisten；
（2）Quadric-plastering, confining surface desciccation crack should be strengthened for after final set before floorslab concrete initial set；Table after final set
The covering curing phase was strengthened no less than 14 days in face；
（3）For R.C. wall board, just in the outer wet straw screen or mat of side mounting of template or straw bag before casting concrete, prevent moisture
Distribute, guarantee simultaneously template do not absorb water, not spillage；After concrete final set, in addition to keeping both sides straw screen or mat humidity, should be constantly from top
Face water seasoning, curing age is no less than 14 days, and form removable is no earlier than 5 days；
（Six）Joint reinforcing bar construction measure
（1）Hypothesis X-direction is main frame, and in node district, the upper and lower reinforcing bar of the beam of Y-direction is it is necessary to from X-direction
Pass through above the following and lower rebar of the upper reinforcement of beam；
（2）The reinforcing bar of beam puts in beam column node area, avoids vertical reinforcement and the stirrup of post；
（3）Reinforcing bar must is fulfilled for code requirement in the anchorage length of node district.
The stirrup of non-corner node area part is first made hoop reinforcement cage by the present invention, the then high strength concrete of lower floor's post
Only this layer of beam bottom need to be poured onto, the beam slab of this floor and non-corner node area all adopt the relatively lower intensity level concrete of floor beam slab to unify
Pour, beam column corner node area is directly poured according to post strength grade of concrete, it is to avoid beam column division surface construction wrong occurs
And different strength concrete such as pours at the construction problem simultaneously.This construction method is more quick than traditional construction method, guarantor
Card quality is easy to operate.
With reference to embodiment, the invention will be further described.
Specific embodiment
A kind of high-rise frame node different intensity grades concrete sort permutation complete construction method, comprises the following steps：
（One）The construction of core area hoop reinforcement cage：
（A）A hoop reinforcement cage made by node district stirrup, post is indulged muscle and holds together in cage；The specific practice of hoop reinforcement cage is：
1）Stirrup specification machine-shaping by requirement in structure chart；
2）The reinforcing bar of φ 12 is placed in the middle part of every side of stirrup periphery as additional vertical muscle；
3）Stirrup is welded into hoop reinforcement cage with additional vertical muscle point by stirrup spacing on request；
4）The maximum deck-molding at each node of node hoop reinforcement cage height is defined；
（B）Several short round steel are arranged on beam position, as the skeleton supporting beam steel；Beam lower rebar is inserted in respectively and sets
The beam hoop that meter requires, enters the setting of cross girders lower rebar from low to high, beam bottom reinforcing bar is stretched into and its elevation institute from Beam Elevation
At the corresponding hoop reinforcement cage in position；
（C）Beam longitudinal structure muscle stretches into hoop reinforcement cage corresponding with its position；
（D）Penetrate back from low to high according to back elevation and indulge muscle, and the top of guarantee girder is indulged muscle and indulged at secondary beam top
Above muscle, then vertical muscle is stretched in node district hoop reinforcement cage；
（E）By the beam stirrup spacing of design requirement, beam stirrup is uniformly spread out, and colligation becomes beam reinforcement cages；Beam if there are
Longitudinal structure reinforcing bar and S-shaped contact stirrup, and also the perpendicular limb of beam hoop is caught in colligation respectively on beam hoop；
（F）After having checked the bar gauge of beam, lay down the short round steel of support beam muscle, beam muscle is sunk together with node hoop reinforcement cage
Enter in mould；
（G）With galvanized wire, hoop reinforcement cage and post are indulged muscle colligation to get up；
（Two）The transport of concrete：According to transportation route mileage, determine the quantity of concrete mixing and transporting car；Concrete stirs
Mix transport vehicle and ensure good working order；
（Three）The pumping of concrete
（1）Scene, by arrangement and method for construction requirement stringing, checks in pipe whether there is concrete residue before stringing, for reducing pumping
Pressure loss pipeline fixation firm, especially inclined tube and vertical tube；
（2）First clear water moistening pipeline is used before pumping, then with cement mortar lubrication piping and pump machine；
（3）The amount of concrete of hopper keeps being not less than 20cm suitable for reading, in order to avoid pump machine inhalation rate is low or blocks up because sucking air
Plug；
（4）Set up position laying bamboo slab rubber passage in pump line, prevention connect concrete when tearing pump line open be scattered cause dirty to reinforcing bar
Dye；When rotating material distributing machine, wrap discharge end with woven bag, in order to avoid the beam slab steel not poured in pollution material distributing machine rotating range
Muscle；
（Four）Pouring of concrete is smash
（1）First pour vertical wall, post, then pour horizontal beam, plate, beam-column joint core, when having high-low bay, first pour low across
Position concrete, pours high across position concrete before its initial set.When low have wall, post high-strength grade concrete across position when,
Should first pour to low across top of the plate position；
（2）Lengthen poker vibrator using Φ 50 to vibrate beam column concrete, take Φ 30 to lengthen insertion for node district
Formula vibrator vibrates；
（3）, vibrator should insert soon and pull out slowly, the time of staying of often vibrating needs 20～30 seconds, and spacing of vibrating is not more than 50
, it is deep that vibrating spear should insert next layer 50；
（4）Construction area division principle：The concrete of the high and low grade to pour in region finally pours time difference not
Exceed and deduct 2h setting time and be advisable；During construction, for guaranteeing that concrete construction sews up raft quality, constructed using tower crane is motor-driven
Sew up pouring of raft, to control the unstability of concrete initial set time；
（5）When pouring walling, post concrete, placement layer by layer vibrates；Before concrete initial set, pour beam slab therewith；When pouring
The core space intensive to wall beam, node of column and beam reinforcing bar, varying strength concrete intersection, strengthen vibrating, prevent leakage is shaken phenomenon, really
Protect density and the design strength of beam-column joint core concrete；
（Five）The maintenance of concrete
（1）After concreting finishes, surface maintenance takes plastic covering thin film to add a cover straw bag watering maintenance, prevents from mixing
Solidifying soil internal moisture evaporation, and keep concrete surface to moisten；
（2）Quadric-plastering, confining surface desciccation crack should be strengthened for after final set before floorslab concrete initial set；Table after final set
The covering curing phase was strengthened no less than 14 days in face；
（3）For R.C. wall board, just in the outer wet straw screen or mat of side mounting of template or straw bag before casting concrete, prevent moisture
Distribute, guarantee simultaneously template do not absorb water, not spillage；After concrete final set, in addition to keeping both sides straw screen or mat humidity, should be constantly from top
Face water seasoning, curing age is no less than 14 days, and form removable is no earlier than 5 days；
（Six）Joint reinforcing bar construction measure
（1）Hypothesis X-direction is main frame, and in node district, the upper and lower reinforcing bar of the beam of Y-direction is it is necessary to from X-direction
Pass through above the following and lower rebar of the upper reinforcement of beam；
（2）The reinforcing bar of beam puts in beam column node area, avoids vertical reinforcement and the stirrup of post；
（3）Reinforcing bar must is fulfilled for code requirement in the anchorage length of node district.
Claims (1)
1. a kind of complete fast construction method of high-rise frame node different intensity grades concrete sort permutation, is characterized in that：Including under
Row step：
(1) construction of core area hoop reinforcement cage：
(A) hoop reinforcement cage made by core area stirrup, post is indulged muscle and holds together in hoop reinforcement cage；The specific practice of hoop reinforcement cage is：
1) by the stirrup specification machine-shaping of requirement in structure chart；
2) reinforcing bar of φ 12mm is placed in the middle part of every side of stirrup periphery as additional vertical muscle；
3) stirrup is welded into hoop reinforcement cage with additional vertical muscle point by stirrup spacing on request；
4) the maximum deck-molding at each node of hoop reinforcement cage height is defined；
(B) several short round steel are arranged on beam position, as the skeleton supporting beam steel；Beam lower rebar being inserted in respectively design will
The beam hoop asked, enters the setting of cross girders lower rebar from low to high from Beam Elevation, beam lower rebar is stretched into and is located with its elevation
At the corresponding hoop reinforcement cage in position；
(C) beam longitudinal structure muscle stretches into hoop reinforcement cage corresponding with its position；
(D) penetrate back from low to high according to back elevation and indulge muscle, and ensure the vertical muscle in top of girder in the vertical muscle in secondary beam top
Above, then muscle is indulged at the top of girder to stretch in core area hoop reinforcement cage；
(E) by the beam stirrup spacing of design requirement, beam stirrup is uniformly spread out, and colligation becomes beam reinforcement cages；Beam is if there are longitudinal direction
Distributing bar and S-shaped contact stirrup, and also the perpendicular limb of beam hoop is caught in colligation respectively on beam hoop；
(F) after having checked the bar gauge of beam, lay down the short round steel of the skeleton supporting beam steel, by the skeleton of beam steel and node
Hoop reinforcement cage sinks in mould together；
(G) with galvanized wire, hoop reinforcement cage and post are indulged muscle colligation to get up；
(2) transport of concrete：According to transportation route mileage, determine the quantity of concrete mixing and transporting car；Concrete-agitating is transported
Defeated car ensures good working order；
(3) pumping of concrete
(1) scene, by arrangement and method for construction requirement stringing, checks in pipe whether there is concrete residue before stringing, for reducing the pressure of pumping
Power loss pipeline inclined tube fixation is firm；
(2) first use clear water moistening pipeline before pumping, then with cement mortar lubrication piping and pump machine；
(3) amount of concrete of hopper keeps being not less than 20cm suitable for reading, in order to avoid pump machine inhalation rate is low or blocks because sucking air；
(4) pump line set up position laying bamboo slab rubber passage, prevention connect concrete when tearing pump line open be scattered cause to reinforcing bar pollute；Turn
During dynamic material distributing machine, wrap discharge end with woven bag, in order to avoid the beam reinforced steel bar not poured in pollution material distributing machine rotating range；
(4) pouring of concrete is smash
(1) first pour vertical wall, post, then pour horizontal beam, plate, core area, when having high-low bay, first pour low across position coagulation
Soil, pours high across position concrete before its initial set；When low have wall, post high-strength grade concrete across position when, should first pour
To low across top of the plate position；
(2) lengthen poker vibrator using Φ 50mm to vibrate beam column concrete, take Φ 30mm to lengthen insertion for core area
Formula vibrator vibrates；
(3) vibrator should be inserted soon and pull out slowly, and a time of staying of often vibrating needs 30 seconds, and spacing of vibrating is not more than 50, vibrating spear
Next layer 50 should be inserted deep；
(4) construction area division principle：The concrete of the high and low grade to pour in region finally pours time difference and is less than and coagulates
The knot time is advisable；During construction, for guaranteeing that concrete construction sews up raft quality, using tower crane motor-driven carry out constructing sew up pouring of raft
Build, to control the unstability of concrete initial set time；
(5), when pouring walling, post concrete, placement layer by layer vibrates；Before concrete initial set, pour beam slab therewith；To wall when pouring
The intensive core area of beam, node of column and beam reinforcing bar, varying strength concrete intersection, strengthen vibrating, and prevent leakage is shaken phenomenon it is ensured that core
The density of core area concrete and design strength；
(5) maintenance of concrete
(1), after concreting finishes, surface maintenance takes plastic covering thin film to add a cover straw bag watering maintenance, prevents in concrete
Portion's moisture evaporation, and keep concrete surface to moisten；
(2) quadric-plastering, confining surface desciccation crack should be strengthened for after final set before floorslab concrete initial set；After final set, surface adds
The strong covering curing phase is no less than 14 days；
(3) for R.C. wall board, just in the outer wet straw screen or mat of side mounting of template or straw bag before casting concrete, prevent moisture from dissipating
Send out, guarantee simultaneously template do not absorb water, not spillage；After concrete final set, in addition to keeping both sides straw screen or mat humidity, should be constantly from top surface
Water seasoning, curing age is no less than 14 days, and form removable is no earlier than 5 days；
(6) joint reinforcing bar construction measure
(1) assume that X-direction is main frame, in core area, the upper and lower reinforcing bar of the beam of Y-direction is it is necessary to from the beam of X-direction
Pass through above the following and lower rebar of upper reinforcement；
(2) reinforcing bar of beam puts in beam column core area, avoids post and indulges muscle and stirrup；
(3) reinforcing bar must is fulfilled for code requirement in the anchorage length in core area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088624.8A CN104775620B (en) | 2013-08-20 | 2013-08-20 | The complete fast construction method of high-rise frame node different intensity grades concrete sort permutation |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310362276.XA CN103410319B (en) | 2013-08-20 | 2013-08-20 | Complete construction method for sorting and replacing concretes of different strength grades of high-rise frame joints |
| CN201510088624.8A CN104775620B (en) | 2013-08-20 | 2013-08-20 | The complete fast construction method of high-rise frame node different intensity grades concrete sort permutation |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310362276.XA Division CN103410319B (en) | 2013-08-20 | 2013-08-20 | Complete construction method for sorting and replacing concretes of different strength grades of high-rise frame joints |
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| Publication Number | Publication Date |
|---|---|
| CN104775620A CN104775620A (en) | 2015-07-15 |
| CN104775620B true CN104775620B (en) | 2017-03-01 |
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| CN201510088624.8A Expired - Fee Related CN104775620B (en) | 2013-08-20 | 2013-08-20 | The complete fast construction method of high-rise frame node different intensity grades concrete sort permutation |
| CN201310362276.XA Expired - Fee Related CN103410319B (en) | 2013-08-20 | 2013-08-20 | Complete construction method for sorting and replacing concretes of different strength grades of high-rise frame joints |
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| CN201310362276.XA Expired - Fee Related CN103410319B (en) | 2013-08-20 | 2013-08-20 | Complete construction method for sorting and replacing concretes of different strength grades of high-rise frame joints |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107859352A (en) * | 2017-11-23 | 2018-03-30 | 中铁建设集团南方工程有限公司 | Consolidation process construction at skyscraper different strength concrete bean column node |
| CN108643577A (en) * | 2018-04-02 | 2018-10-12 | 李芳群 | 2 Anti-shock buildings of construction are bypassed the immediate leadership Anti-Typhoon easy shatter-proof 3 generation specific purpose tool and usage |
| CN117166608B (en) * | 2023-09-05 | 2024-03-26 | 中铁建设集团华北工程有限公司 | Post grouting-based concrete beam column node strength construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000017843A (en) * | 1998-06-29 | 2000-01-18 | Tokyu Constr Co Ltd | Anchoring method for main reinforcement in column-beam joint of structure and anchoring construction for main reinforcement in beam |
| CN201351313Y (en) * | 2009-01-15 | 2009-11-25 | 西安建筑科技大学 | Concrete special-shaped column equipped with lattice type channel steel framework-reinforced concrete beam frame joint |
| CN102011434A (en) * | 2010-11-24 | 2011-04-13 | 沈阳建筑大学 | BRB (buckling restrained brace) concrete frame beam-column joint |
| CN102061770A (en) * | 2010-03-03 | 2011-05-18 | 柳忠林 | Construction method for imitated frame structure of long-span prestressed concrete beam slab |
| CN103104039A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting cover plate connection and construction method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2436339A1 (en) * | 2003-07-30 | 2005-01-30 | Aluma Enterprises Inc. | Shoring leg with node connectors |
-
2013
- 2013-08-20 CN CN201510088624.8A patent/CN104775620B/en not_active Expired - Fee Related
- 2013-08-20 CN CN201310362276.XA patent/CN103410319B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000017843A (en) * | 1998-06-29 | 2000-01-18 | Tokyu Constr Co Ltd | Anchoring method for main reinforcement in column-beam joint of structure and anchoring construction for main reinforcement in beam |
| CN201351313Y (en) * | 2009-01-15 | 2009-11-25 | 西安建筑科技大学 | Concrete special-shaped column equipped with lattice type channel steel framework-reinforced concrete beam frame joint |
| CN102061770A (en) * | 2010-03-03 | 2011-05-18 | 柳忠林 | Construction method for imitated frame structure of long-span prestressed concrete beam slab |
| CN102011434A (en) * | 2010-11-24 | 2011-04-13 | 沈阳建筑大学 | BRB (buckling restrained brace) concrete frame beam-column joint |
| CN103104039A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting cover plate connection and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103410319A (en) | 2013-11-27 |
| CN103410319B (en) | 2015-04-01 |
| CN104775620A (en) | 2015-07-15 |
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