CN106049666A - Prefabricated assembled concrete structure and construction method thereof - Google Patents
Prefabricated assembled concrete structure and construction method thereof Download PDFInfo
- Publication number
- CN106049666A CN106049666A CN201610636485.2A CN201610636485A CN106049666A CN 106049666 A CN106049666 A CN 106049666A CN 201610636485 A CN201610636485 A CN 201610636485A CN 106049666 A CN106049666 A CN 106049666A
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- grouting
- assembled
- assembled architecture
- slurry
- mortar
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/383—Connection of concrete parts using adhesive materials, e.g. mortar or glue
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
- E04C2/2885—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the field of building construction, in particular to a prefabricated assembled concrete structure and a construction method thereof. The prefabricated assembled concrete structure comprises assembled building components and a body structure, and further comprises bed-mortar and mortar cabin separating strips and grouting cavities. The bed-mortar and mortar cabin separating strips are located between the assembled building components and horizontally arranged; the grouting cavities are cavity portions defined by the bed-mortar and mortar cabin separating strips and the assembled building components, and the assembled building components are provided with grouting holes communicated with the grouting cavities. The construction method includes the steps of 1, installing the assembled building components; 2, preparing grouting mortar; 3, defoaming the mortar; 4, manufacturing low-pressure grouting test pieces; 5, carrying out grouting, and meanwhile shooting a video or a picture; 6, filling in a construction record, and carrying out supervisor signing; 7, sorting data. According to the prefabricated assembled concrete structure and the construction method, the technologies of all stages of the grouting construction process of the assembled building components are strictly controlled, key factors affecting grouting quality are eliminated, and the grouting construction quality is guaranteed to the maximum degree.
Description
Technical field
The present invention relates to the realm of building construction, be specially a kind of assembled architecture PC structure and construction method thereof.
Background technology
This project is the first batch of engineering that fabricated construction construction technology applies to security housing project, and this engineering is a large amount of
Use precast concrete sandwich heat preservation wallboard (vertical supporting member), balcony handrail plate (nonload bearing element), the anti-fire screen of staircase
Wall (nonload bearing element) three major types component, and these components are in the milk, grouting amount has reached 63 tons.
At present, grouting technique is not the most very skilled, and in addition, the quality testing after grouting does not also have effective method
And instrument and equipment.So, in order to ensure the grouting construction quality of engineering, the quality monitoring to whole filling process is very requirement
's.
At present, owing to control and the detection method of prefabricated assembled concrete structure mortar depositing construction quality do not determine, and
And for grouting construction neither one effectively, working procedure easily, add grouting material when outside air temperature is less than 5 DEG C the most not
Can carry out grouting construction, filled the temperature at post-grouting position of slurry in 48h must not less than 10 DEG C etc. various execution conditions
Limiting, complete grouting construction is the problem that construction needs to solve at present high-quality and high-efficiency.
Summary of the invention
The present invention is directed to problem present in existing construction, it is proposed that prefabricated assembled concrete structure and strictly regulating
Working procedure, strictly monitors work progress, ensure that the quality of grouting construction well.
Concrete solution is: a kind of prefabricated assembled concrete structure, including assembled architecture component and agent structure,
Also include seat slurry mortar point storehouse bar and grouting chamber, seat slurry mortar divide storehouse bar between assembled architecture component, along assembled
The width of building element be horizontally disposed with and along assembled architecture component length direction parallel interval be distributed；Grouting chamber
The re-entrant portion surrounded for seat slurry mortar point storehouse bar and assembled architecture component, assembled architecture component offers connection grouting
The grout hole in chamber.
Described assembled architecture component is precast concrete sandwich heat preservation wallboard, balcony handrail plate or the anti-fire screen of staircase
Wall.
Described precast concrete sandwich heat preservation wallboard includes that load-bearing concrete layer, heat-insulation layer and non-bearing are prefabricated successively
Concrete layer, wherein precast concrete sandwich heat preservation wallboard thickness is 300～350mm, and load-bearing precast concrete layer thickness is 180
～220mm, insulation layer thickness is 50～100mm, and non-bearing precast concrete layer thickness is 30～80mm.
Described seat slurry mortar point storehouse bar is arranged on Fen Cang position, its a height of 20～40mm, a width of 10～30mm, a length of
150～250mm, the gap between assembled architecture component is divided into chamber of being in the milk one by one；Described grouting chamber is divided into pure bin to note
Slurry and grout sleeve are in the milk.
A kind of construction method of prefabricated assembled concrete structure, described construction method is:
(1) assembled architecture component is installed: on-the-spot slip casting position divides storehouse complete, and assembled architecture lifting component completes, seam crossing
Filleting is complete, forms airtight bin, chamber of being i.e. in the milk；Get out relevant device, whether check in grouting chamber whether spillage and cavity
Moistening.
(2) preparation grouting slurry: by design proportioning preparation grouting material, be initially charged the water of 80% during the mix of grouting material,
Add the water of residue 20% after stirring, stir.
(3) slurry froth breaking: slurry stands 2 minutes, eliminates the bubble within grouting material, prepares in being subsequently poured into low pressure vessel
Grouting.
(4) assembled architecture component low pressure grouting material test specimen is made: grouting material needs indwelling test cube in the same condition, Mei Donglou, every
Layer, often construction one group of test block of flowing water section indwelling, the test block witness sampling that assembled architecture component low pressure is in the milk by management, and retain
Image data.
(5) it is in the milk: same layer assembled architecture component grouting chamber number plate, grout sleeve, the bin that divided are entered
Row grouting；First inject at grout hole, treat that grouting material is emerged from spout hole and continues several seconds, represent that prefabricated components have been in the milk
Full, utilize rubber stopper to block tight by grout hole and spout hole after filling；In this step implementation process, grouting material is at outside air temperature
Can not carry out grouting construction during less than 5 DEG C, the ambient temperature at the post-grouting position of grouting must not be less than 10 DEG C in 48h, to filling
Slurry position carries out the side reporting of overall process, and the moment pays close attention to the change of outside air temperature, when outside air temperature is less than 10 DEG C, and position of being in the milk
Insulation is taked in 48h.Grouting overall process video to be shot or photo.
In step (1), PE bar is pasted in the outside of adjacent assembled architecture panels seam, and present slurry mortar point storehouse bar does not has
Placing assembled architecture component before initial set, now the reinforcing bar of lower floor's assembled architecture component is inserted into upper strata assembled architecture structure
In the steel bushing of part, steel bushing forms entirety with grouting chamber, forms cavity with seat slurry mortar filleting.
After step (5), also include that (6) fill in assembled architecture component low pressure grouting construction record management signature；
(7) array data.
In described step (4) implementation process, often group 3 pieces of test specimens of test block, test block specification is 40 × 40 × 160mm；Grouting
Operation often completes 500 concrete-steel sleeve grouting jointings and does one group of test specimen, often group 3 joints of test specimen, needs during test specimen indwelling
Dispenser operates grouting, and has carried out the foster maintenance of mark in 28 days.
Grouting before tissue management, unit in charge of construction Quality Inspector to grouting region carry out an acceptance inspection, check and accept by after can carry out under
Procedure.
Within being in the milk latter 12 hours, component and grouting jointing must not vibrated and impacts；
Cleaning blender, agitator, grouting cylinder after grouting immediately, grouting cylinder need to clean once after often having irrigated one,
Can reuse after cleaning.
Beneficial effect: devise low-pressure grouting technique in the present invention, utilizes seat slurry mortar point storehouse bar to be divided into slip casting position
Each bin carries out a point storehouse slip casting, and the bin that bigger is divided into a limited number of little bin by point storehouse, and such workman just may be used
Quickly to have noted a little bin, so complete one piece of precast concrete the slip casting of grouting chamber；One grouting chamber is big
About between 2.5m～5.0, being divided into several little bins grouting works for grouting workman and be easier to operate to, quality is more held
Easy to control；It control effectively additionally, this form of construction work also helps the technique to each stage during grouting construction,
Eliminate the effects of the act the key factor of grouting quality, it is possible to ensure the construction quality of grouting to greatest extent.
Accompanying drawing explanation
Fig. 1 is grouting construction process flow chart；
Fig. 2 is prefabricated assembled concrete structure partial plane graph；
Fig. 3 is prefabricated assembled concrete structure vertical 1-1 profile；
Fig. 4 is prefabricated assembled concrete structure vertical 2-2 profile；
In figure, 1-precast concrete sandwich heat preservation wallboard；2-seat slurry mortar divides storehouse bar；3-agent structure；4-cast-in-place concrete is tied
Structure.
Detailed description of the invention
This project is the engineering of security housing project, a large amount of employing PC plate, balcony handrail plate, newel wall three major types structures
Part, and these components are in the milk.The grouting pressure that the slip casting of this engineering uses is 0.2 MPa, arranges at low pressure air compressor
In the range of atmospheric pressure, and the type of the air compressor that we use belongs to low pressure air compressor.
As depicted in figs. 1 and 2, this prefabricated assembled concrete structure, including precast concrete sandwich heat preservation wallboard 1 He
Floor, also include seat slurry mortar point storehouse bar 2 and grouting chamber, seat slurry mortar divide storehouse bar 2 between assembled architecture component, along
The width of assembled architecture component be horizontally disposed with and along assembled architecture component length direction parallel interval be distributed；；
The re-entrant portion that grouting chamber is seat slurry mortar point storehouse bar 2 and assembled architecture component surrounds, is divided into pure bin slip casting and grouting set
Cylinder grouting, grout sleeve usually communicates with the bin divided, and having the bin top at some positions is not have grout sleeve
, so being called pure bin, assembled architecture component offers the grout hole in connection grouting chamber.
Precast concrete sandwich heat preservation wallboard 1 includes that load-bearing concrete layer, heat-insulation layer and non-bearing are prefabricated mixed successively
Solidifying soil layer, wherein precast concrete sandwich heat preservation wallboard thickness is 320mm, and load-bearing precast concrete layer thickness is 200mm, insulation
Layer thickness is 70mm, and non-bearing precast concrete layer thickness is 50mm.
Described seat slurry mortar point storehouse bar 2 is arranged on Fen Cang position, its a height of 30mm, a width of 20mm, a length of 200mm, edge
The width of wall is arranged, and the gap between assembled architecture component is divided into chamber of being in the milk one by one.
When precast concrete sandwich heat preservation wallboard is installed, can be formed between precast concrete sandwich heat preservation wallboard and floor
The gap of width about 20mm, cry again grouting chamber.PE bar, PE bar are pasted in the outside placing precast concrete sandwich heat preservation position of wallboards
Size: 30mm is thick, 70mm width, and Fen Cang position is placed the seat slurry mortar of high 30mm, wide 20mm, long 200mm that seat slurry is made and divided
Storehouse bar, present slurry mortar point storehouse bar places precast concrete sandwich heat preservation wallboard before not having initial set.Now lower floor's concrete
The reinforcing bar of soil sandwich heat preservation wallboard is inserted in the steel bushing of upper strata precast concrete sandwich heat preservation wallboard, steel bushing and grouting chamber
Forming entirety, with sitting slurry, 20mm stitches filleting, closure forms cavity, then needs grouting chamber is carried out grouting construction.
Preparation grouting material, the ratio of mud (water and the ratio of dry-mixed mortar) of grouting material is 0.12:1, the mix process of grouting material
In be initially charged 80% water, add after stirring residue 20% water, stir, stand 2 minutes, elimination grouting material inside
Bubble, be subsequently poured in low pressure vessel and prepare grouting.
Grouting first should be injected according to grouting point storehouse situation at grout hole, treats that grouting material is emerged from spout hole and continues
Several seconds, represent that the grouting such as precast concrete sandwich heat preservation wallboard, balcony handrail plate, staircase fire partition are the fullest.Prefabricated mixed
The grout sleeve grouting of solidifying soil sandwich heat preservation wallboard etc., bottom grout sleeve, grout hole is implanted sequentially, and treats the top of its correspondence
Spout hole emerge grouting material time and continue several seconds, represent in steel bushing and fill, utilize rubber stopper by grout hole after filling and
Spout hole closure is tight.
Under preference temperature, use the technology of low-pressure grouting, grouting steel bushing, the bin that divide are in the milk: be in the milk
Expect outside air temperature less than 5 DEG C time cannot carry out grouting construction, the ambient temperature at the post-grouting position of grouting in 48h not
Must be less than 10 DEG C, therefore we carry out the side reporting of overall process to grouting position, and the moment pays close attention to the change of outside air temperature.Outdoor
Not carrying out cementing operations when temperature is less than 5 DEG C, when outside air temperature is less than 10 DEG C, Insulation is taked at grouting position in 48h.Fill
Within having starched latter 12 hours, component and steel bushing grouting jointing must not vibrated and impacts.
The utensils such as blender, agitator, grouting cylinder are cleaned immediately after grouting, in order to avoid grouting material solidification, cleaning difficulty.
Notice that grouting cylinder need to clean once after often having irrigated one, can reuse after cleaning.So being in the milk in each teams and groups
Must at least prepare two grouting pressure tanks during operation, one of them is standby.
During grouting construction, test cube in the same condition and test specimen need to be made.Grouting material needs indwelling test cube in the same condition, Mei Donglou,
Every layer, often construction one group of test block of flowing water section indwelling, often group 3 pieces, test block specification is 40 × 40 × 160mm；Grouting operation often completes
500 concrete-steel sleeve grouting jointings do one group of test specimen, often group 3 joints of test specimen, during test specimen indwelling, and need to be on dispenser
Operate grouting, and carry out the foster maintenance of mark in 28 days.
Management, unit in charge of construction Quality Inspector should be organized before the grouting constructions such as precast concrete sandwich heat preservation wallboard to grouting region
Carry out an acceptance inspection, check and accept by after can carry out next procedure.
This technology can ensure the construction quality of grouting to greatest extent.
Claims (10)
1. a prefabricated assembled concrete structure, including assembled architecture component and agent structure, is characterized in that, also includes seat
Slurry mortar divides storehouse bar (2) and grouting chamber, seat slurry mortar to divide storehouse bar (2) between assembled architecture component, build along assembled
Build the width of component be horizontally disposed with and be distributed along the length direction parallel interval of assembled architecture component；Grouting chamber is
The re-entrant portion that seat slurry mortar point storehouse bar (2) and assembled architecture component surround, assembled architecture component offers connection and fills
The grout hole in slurry chamber.
Prefabricated assembled concrete structure the most according to claim 1, is characterized in that, described assembled architecture component is pre-
Concrete sandwich heat-insulation wall plate (1) processed, balcony handrail plate or staircase fire partition.
Prefabricated assembled concrete structure the most according to claim 2, is characterized in that, described precast concrete sandwich heat preservation
Wallboard (1) includes load-bearing concrete layer, heat-insulation layer and non-bearing concrete layer successively, and wherein precast concrete is sandwich
Heat-insulation wall plate thickness is 300～350mm, and load-bearing precast concrete layer thickness is 180～220mm, insulation layer thickness be 50～
100mm, non-bearing precast concrete layer thickness is 30～80mm.
4. according to the prefabricated assembled concrete structure described in claims 1 to 3 any one, it is characterized in that, described seat slurry
Mortar point storehouse bar (2) is arranged on Fen Cang position, its a height of 20～40mm, a width of 10～30mm, a length of 150～250mm, will assembling
Gap between formula building element is divided into chamber of being in the milk one by one；Described grouting chamber is divided into pure bin slip casting and grout sleeve slip casting.
5. a construction method for prefabricated assembled concrete structure, is characterized in that, described construction method is:
(1) assembled architecture component is installed: on-the-spot slip casting position divides storehouse complete, and assembled architecture lifting component completes, seam crossing
Filleting is complete, forms airtight bin, chamber of being i.e. in the milk；Get out relevant device, whether check in grouting chamber whether spillage and cavity
Moistening；
(2) preparation grouting slurry: by design proportioning preparation grouting material, be initially charged the water of 80% during the mix of grouting material, stirring
Add the water of residue 20% after Jun Yun, stir；
(3) slurry froth breaking: slurry stands 2 minutes, eliminates the bubble within grouting material, prepares to fill in being subsequently poured into low pressure vessel
Slurry；
(4) make assembled architecture component low pressure grouting material test specimen: grouting material needs indwelling test cube in the same condition, Mei Donglou, every layer, every
Construction one group of test block of flowing water section indwelling, the test block witness sampling that assembled architecture component low pressure is in the milk by management, and retain image
Data；
(5) it is in the milk: same layer assembled architecture component grouting chamber number plate, grout sleeve, the bin that divided are filled
Slurry；First inject at grout hole, treat that grouting material is emerged from spout hole and continues several seconds, represent that prefabricated components grouting is the fullest,
Rubber stopper is utilized to block tight by grout hole and spout hole after filling；In this step implementation process, grouting material is low at outside air temperature
Can not carry out grouting construction in 5 DEG C time, the ambient temperature at the post-grouting position having filled slurry must not be less than 10 DEG C in 48h, to note
Slurry position carries out the side reporting of overall process, and the moment pays close attention to the change of outside air temperature, when outside air temperature is less than 10 DEG C, and position of being in the milk
Insulation is taked in 48h；
Grouting overall process video to be shot or photo.
Construction method the most according to claim 5, is characterized in that, in step (1), adjacent assembled architecture panels stitches
Outside paste PE bar, present slurry mortar point storehouse bar places assembled architecture component, now lower floor's assembled before not having initial set
The reinforcing bar of building element is inserted in the steel bushing of upper strata assembled architecture component, and steel bushing connects with grouting chamber, starches sand with seat
Slurry filleting forms cavity.
Construction method the most according to claim 5, is characterized in that, after step (5), also includes that (6) fill in assembled
Building element low-pressure grouting construction note management signature；(7) array data.
Assembled architecture component low pressure grouting process the most according to claim 5, is characterized in that, real in described step (4)
During executing, often group 3 pieces of test specimens of test block, test block specification is 40 × 40 × 160mm；Grouting operation often completes 500 reinforcing bar steel bushings
Cylinder grouting jointing makees one group of parallel test specimen, and often group 3 joints of test specimen, during test specimen indwelling, need to operate on dispenser
Grouting, and carry out the foster maintenance of mark in 28 days.
Construction method the most according to claim 5, is characterized in that, before grouting, tissue management, unit in charge of construction Quality Inspector are to filling
Slurry region carry out an acceptance inspection, check and accept by after can carry out next procedure.
Construction method the most according to claim 5, is characterized in that, within being in the milk latter 12 hours, and component and steel bushing
Grouting jointing must not vibrated and impact；
Cleaning blender, agitator, grouting cylinder after grouting immediately, grouting cylinder need to clean once after often having irrigated one,
Can reuse after cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636485.2A CN106049666A (en) | 2016-08-05 | 2016-08-05 | Prefabricated assembled concrete structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636485.2A CN106049666A (en) | 2016-08-05 | 2016-08-05 | Prefabricated assembled concrete structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN106049666A true CN106049666A (en) | 2016-10-26 |
Family
ID=57480941
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610636485.2A Pending CN106049666A (en) | 2016-08-05 | 2016-08-05 | Prefabricated assembled concrete structure and construction method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948493A (en) * | 2017-04-05 | 2017-07-14 | 桂林理工大学 | A kind of pre- seat slurry fabricated construction component connection method |
| CN110820990A (en) * | 2019-11-28 | 2020-02-21 | 中煤第三建设（集团）有限责任公司 | Embedded steel bar positioning and grouting method for PC component construction |
| CN111472548A (en) * | 2020-04-27 | 2020-07-31 | 贵州建工集团第三建筑工程有限责任公司 | High-rise building assembly type prefabricated wallboard reinforcing steel bar grouting process |
| CN114086773A (en) * | 2021-11-25 | 2022-02-25 | 赣州建工集团有限公司 | Construction process for prefabricated building concrete structure |
| CN114592689A (en) * | 2022-02-11 | 2022-06-07 | 瑞洲建设集团有限公司 | Fabricated building construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948493A (en) * | 2017-04-05 | 2017-07-14 | 桂林理工大学 | A kind of pre- seat slurry fabricated construction component connection method |
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| CN111472548A (en) * | 2020-04-27 | 2020-07-31 | 贵州建工集团第三建筑工程有限责任公司 | High-rise building assembly type prefabricated wallboard reinforcing steel bar grouting process |
| CN114086773A (en) * | 2021-11-25 | 2022-02-25 | 赣州建工集团有限公司 | Construction process for prefabricated building concrete structure |
| CN114592689A (en) * | 2022-02-11 | 2022-06-07 | 瑞洲建设集团有限公司 | Fabricated building construction method |
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Application publication date: 20161026 |
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