CN104674998B - 45-degree slope roof cast-in-place concrete construction method - Google Patents
45-degree slope roof cast-in-place concrete construction method Download PDFInfo
- Publication number
- CN104674998B CN104674998B CN201310609702.5A CN201310609702A CN104674998B CN 104674998 B CN104674998 B CN 104674998B CN 201310609702 A CN201310609702 A CN 201310609702A CN 104674998 B CN104674998 B CN 104674998B
- Authority
- CN
- China
- Prior art keywords
- concrete
- steel wire
- pitched roof
- construction
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a 45-degree slope roof cast-in-place concrete construction method. The method is characterized by comprising the following steps: a, preparing concrete; b, arranging a steel wire mesh on a slope roof; c, setting the casting sequence of the concrete; d, curing the concrete and performing form removal. The 45-degree slope roof cast-in-place concrete construction method has the advantages that the leakage hidden trouble remained to the slope roof concrete structure in the existing construction is effectively overcome, the concrete forming quality is guaranteed, the engineering quality is safe and reliable, the delay of construction period and economic loss thereof caused by rework repair due to leakage of the structure are avoided, and the created potential economic benefit is far greater than the increased investment.
Description
Technical field
The present invention relates to a kind of concrete construction method, specifically, be a kind of 45 ° of pitched roof cast-in-place concrete construction methods.
Background technology
Along with the development of building industry, in architectural design, pitched roof, with the application of its exclusive architectural appearance effect, flexibly space and good drainage performance, makes designer and the more favor of owner use it for house villa and high low layer office building roof shape.But this pitched roof but has certain difficulty of construction, the pitched roof construction of the biggest slope ratio, often due to selection of construction method is improper in construction, easily causes concreting leakiness, easily cause seepage.
The most known Concrete Construction Method of Inclined Room Face also exists above-mentioned all inconvenience and problem.
Summary of the invention
The purpose of the present invention, is to propose a kind of 45 ° of pitched roof cast-in-place concrete construction methods preventing and flowing to during concreting at the bottom of slope.
For achieving the above object, the technical solution of the present invention is:
A kind of 45 ° of pitched roof cast-in-place concrete construction methods, it is characterised in that comprise the following steps:
A, prepare concrete
Prepare concrete, make the slump of concrete 120～150mm；Automobile concrete arm-pump is used to make vertical transport instrument, it is ensured that the seriality of concreting and mobility；
B, pitched roof arrange steel wire
Arranging pitched roof concrete blinding, and by the every 0.6m of plagioclase, arrange one steel wire along pitched roof, steel wire is fixed with template plate face, to guarantee that concrete can stop concrete not toward tenesmus stream toward steel wire during tenesmus stream；Steel wire square is pressed in concrete surface simultaneously, it is to avoid concrete toward tenesmus stream time thus cause roof boarding in uneven thickness；
C, concrete pour order, comprise the steps of
(1) according to order from lower to upper, step pours piecemeal, does not occur concrete toward tenesmus flow phenomenon, and sets special messenger and control to pour situation, measure the slump at any time, contact in time the slump of control concrete with mixing plant in casting process；
(2) along eaves Section of Outer Ring Line with the loop wire of a width of 300mm by carrying out concreting clockwise, and carry out handing over circle before the concrete initial set initially poured, then carry out pouring of the second circle by the loop wire of a width of 300mm；
(3) gradually close to ridge, until completing the pouring construction of whole roofing concrete；
C, pitched roof pour and vibrated concrete,
Casting concrete, when pouring, steel wire square is pressed in concrete surface, and with " point shake method " construction, makes vibrating head be perpendicular to template and vibrate in the face of flooring roofing concrete, strict control vibrates spacing 500mm, order with pouring order of concrete and vibrating time, every some time of vibration 4～6s；
D, the maintenance of concrete and form removal, comprise the steps of
(1) after concreting, 4～6h concrete cover with straw mattress when entering final set, and the moist curing that waters is no less than 14d；
(2) during form removal, the intensity of water-proof concrete must be over the difference of the 75% of design strength grade, surface temperature of concrete and ambient temperature, less than 15 DEG C, in case concrete surface produces crack, it should be noted that do not make template and concrete component impaired during folding mould.
45 ° of pitched roof cast-in-place concrete construction methods of the present invention can also be further achieved by the following technical measures.
Aforesaid method, in wherein said step b, the steel wire diameter >=0.55mm of steel wire, the height >=120mm of steel wire.
Aforesaid method, in wherein said step c, the small holes occurred in casting concrete should be repaired in time, is first rinsed well by hole during repairing, and brushing one ratio of mud is the cement mortar of 0.4, then is that 1:2.5 cement mortar is tamped floating with the ratio of mud.
After using technique scheme, 45 ° of pitched roof cast-in-place concrete construction methods of the present invention have the advantage that
1, efficiently against the hidden leakage defect staying in construction in the past pitched roof xoncrete structure, it is ensured that concrete formation quality；
2, construction quality is safe and reliable, and avoiding does over again due to structural leakage in the past repairs the schedule delays and economic loss thereof caused；
3, the potential economic benefit created is much larger than the input increased.
Accompanying drawing explanation
Fig. 1 is the sloping roof structure floor map of the embodiment of the present invention；
Fig. 2 is the roofing flap arrangement of reinforcement schematic diagram of the embodiment of the present invention；
Fig. 3 is that the steel wire of the embodiment of the present invention arranges schematic diagram；
Fig. 4 is the sectional view of A-A in Fig. 3.
In figure: 1 reinforcing bar, 2 templates, 3 steel wires.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
Referring now to the sloping roof structure floor map that Fig. 1, Fig. 1 are the embodiment of the present invention, Fig. 2 is the roofing flap arrangement of reinforcement schematic diagram of the embodiment of the present invention.45 ° of pitched roof cast-in-place concrete construction methods of the present invention, it is characterised in that comprise the following steps:
A, prepare concrete
Prepare concrete, owing to the concreting of Sloping roof is extremely difficult, it requires that the slump of concrete is 120～150mm；Automobile concrete arm-pump is used to make vertical transport instrument, it is ensured that the seriality of concreting and mobility；
B, pitched roof arrange steel wire
Fig. 3 is that the steel wire of the embodiment of the present invention arranges schematic diagram, and Fig. 4 is the sectional view of A-A in Fig. 3.Pitched roof concrete blinding 2 is set; and by the every 0.6m of plagioclase; along pitched roof, one steel wire 3 is set; steel wire is fixed with template plate face; the steel wire diameter of steel wire is 0.55mm; steel wire height is 120mm, to guarantee that concrete can stop concrete not toward tenesmus stream toward steel wire during tenesmus stream；Steel wire square is pressed in concrete surface simultaneously, it is to avoid concrete toward tenesmus stream time thus cause roof boarding in uneven thickness；
C, concrete pour order, comprise the steps of
(1) according to order from lower to upper, step pours piecemeal, does not occur concrete toward tenesmus flow phenomenon, and sets special messenger and control to pour situation, measure the slump at any time, contact in time the slump of control concrete with mixing plant in casting process；
(2) along eaves Section of Outer Ring Line with the loop wire of a width of 300mm by carrying out concreting clockwise, and carry out handing over circle before the concrete initial set initially poured, then carry out pouring of the second circle by the loop wire of a width of 300mm；
(3) gradually close to ridge, until completing the pouring construction of whole roofing concrete；
C, pitched roof pour and vibrated concrete,
Casting concrete, when pouring, steel wire square is pressed in concrete surface, and with " point shake method " construction, make vibrating head be perpendicular to flooring roofing concrete faced by template to vibrate, the strict spacing that controls to vibrate, spacing of vibrating controls to be advisable at 500mm, the same pouring order of concrete of order of vibrating, vibrating time, every some time of vibration 4～6s；" point shake method " construction has following major advantage: one is that vibration area is little, a step vibration can put in place, can improve the density of concrete；Two is that required time of vibrating is short, and every some time of vibration about about 5s decreases concrete and runs off；Three is that constructing operation is simple, and vibrating head only needs a people just can operate, and decreases workmen and tramples reinforcing bar, can better ensure that reinforcing bar not invariant shift shape；Four be point shake method construction time concrete the slump little, decrease water consumption, can significantly reduce the capillary channel of inside concrete, improve the density of roofing concrete, reduce and have honeycombing at the bottom of roof boarding.The small holes occurred in casting concrete should be repaired in time, is first rinsed well by hole during repairing, and brushing one ratio of mud is the cement mortar of 0.4, then is that 1:2.5 cement mortar is tamped floating with the ratio of mud.
D, the maintenance of concrete and form removal, comprise the steps of
(1) after concreting, 4～6h concrete cover with straw mattress when entering final set, and the moist curing that waters is no less than 14d；
(2) due to relatively tight to the curing requirements of concrete, therefore unsuitable form removal eraly.During form removal, the intensity of water-proof concrete must be over the difference of the 75% of design strength grade, surface temperature of concrete and ambient temperature, less than 15 DEG C, in case concrete surface produces crack, it should be noted that do not make template and concrete component impaired during folding mould.
The present invention has substantive distinguishing features and significant technological progress, and 45 ° of pitched roof cast-in-place concrete construction methods of the present invention solve wide-angle pitched roof and easily flow at the bottom of slope when concreting, is difficult to a difficult problem for one-time-concreting molding.
45 ° of pitched roof cast-in-place concrete construction methods of the present invention of the present invention amount to 13 buildings in the first phase in 2011 the middle and primary schools' standardization of pool comprehensive test region and state-run kindergarten construction project, Pingtan standardization school of comprehensive test region second phase middle and primary schools project in 2012 amounts to utilization in 12 buildings, effect is notable, obtain the abundant affirmation of supervisor and construction unit, achieve good economic and social benefit.
Above example is used for illustrative purposes only, rather than limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, it is also possible to make various conversion or change.Therefore, the technical scheme of all equivalents also should belong to scope of the invention, should be limited by each claim.
Claims (3)
1. one kind 45 ° pitched roof cast-in-place concrete construction methods, it is characterised in that comprise the following steps:
A, prepare concrete
Prepare concrete, make the slump of concrete 120～150mm；Automobile concrete arm-pump is used to make vertical transport instrument, it is ensured that the seriality of concreting and mobility；
B, pitched roof arrange steel wire
Arranging pitched roof concrete blinding, and by the every 0.6m of plagioclase, arrange one steel wire along pitched roof, steel wire is fixed with template plate face；
C, concrete pour order, comprise the steps of
(1) according to order from lower to upper, step pours piecemeal, does not occur concrete toward tenesmus flow phenomenon, and sets special messenger and control to pour situation, measure the slump at any time, contact in time the slump of control concrete with mixing plant in casting process；
(2) along eaves Section of Outer Ring Line with the loop wire of a width of 300mm by carrying out concreting clockwise, and carry out handing over circle before the concrete initial set initially poured, then carry out pouring of the second circle by the loop wire of a width of 300mm；
(3) gradually close to ridge, until completing the pouring construction of whole roofing concrete；
D, pitched roof pour and vibrated concrete,
Casting concrete, when pouring, steel wire square is pressed in concrete surface, and with " point shake method " construction, makes vibrating head be perpendicular to template and vibrate in the face of flooring roofing concrete, strict control vibrates spacing 500mm, order with pouring order of concrete and vibrating time, every some time of vibration 4～6s；
E, the maintenance of concrete and form removal, comprise the steps of
(1) after concreting, 4～6h concrete cover with straw mattress when entering final set, and the moist curing that waters is no less than 14d；
(2) during form removal, the intensity of water-proof concrete must be over the difference of the 75% of design strength grade, surface temperature of concrete and ambient temperature, less than 15 DEG C, in case concrete surface produces crack, it should be noted that do not make template and concrete component impaired during form removal.
45 ° of pitched roof cast-in-place concrete construction methods the most as claimed in claim 1, it is characterised in that in described step b, the steel wire diameter >=0.55mm of steel wire, the height >=120mm of steel wire.
45 ° of pitched roof cast-in-place concrete construction methods the most as claimed in claim 1, it is characterized in that, in described step d, the small holes occurred in casting concrete should be repaired in time, first hole is rinsed well during repairing, brushing one ratio of mud is the cement mortar of 0.4, then is that 1:2.5 cement mortar is tamped floating with the ratio of mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609702.5A CN104674998B (en) | 2013-11-27 | 2013-11-27 | 45-degree slope roof cast-in-place concrete construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609702.5A CN104674998B (en) | 2013-11-27 | 2013-11-27 | 45-degree slope roof cast-in-place concrete construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104674998A CN104674998A (en) | 2015-06-03 |
| CN104674998B true CN104674998B (en) | 2017-01-11 |
Family
ID=53310542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310609702.5A Active CN104674998B (en) | 2013-11-27 | 2013-11-27 | 45-degree slope roof cast-in-place concrete construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104674998B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013572A (en) * | 2016-06-07 | 2016-10-12 | 中国十七冶集团有限公司 | Concrete pitched roof anti-seepage control method |
| CN106284875B (en) * | 2016-08-31 | 2019-05-03 | 中冶天工集团有限公司 | The concrete device for trapping and construction method of heavy grade roofing |
| CN110005112A (en) * | 2019-04-16 | 2019-07-12 | 中国十七冶集团有限公司 | A kind of pitched roof concrete structure and its construction method |
| CN112112426A (en) * | 2019-06-20 | 2020-12-22 | 中国十九冶集团有限公司 | Inclined roof single-face formwork concrete pouring formwork structure and construction method |
| CN113550499A (en) * | 2021-06-07 | 2021-10-26 | 中国五冶集团有限公司 | Concrete construction method for antique slope roof |
| CN114108800A (en) * | 2021-12-09 | 2022-03-01 | 中国一冶集团有限公司 | Steel wire mesh framing cabin for cornice board concrete pouring and pouring construction method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0765371B2 (en) * | 1987-08-12 | 1995-07-19 | 清水建設株式会社 | How to build a sloping roof by concrete |
| CN202170600U (en) * | 2011-07-21 | 2012-03-21 | 中国建筑第二工程局有限公司 | Segregation preventing device for concrete pouring of large-angle sloping roof |
-
2013
- 2013-11-27 CN CN201310609702.5A patent/CN104674998B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104674998A (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104674998B (en) | 45-degree slope roof cast-in-place concrete construction method | |
| CN106436893A (en) | Fully-prefabricated structure and construction method thereof | |
| CN103015719B (en) | Integral casting process for reinforced concrete wastewater tank of pre-drilling engineering | |
| CN113175163B (en) | Construction method of integrated roof node structure | |
| CN208455910U (en) | Large-span hemispherical reinforced concrete dome structure and template system thereof | |
| CN109024870A (en) | The connection structure and its construction method of assembled underground structure vertical member | |
| CN206220238U (en) | Fully-prefabricated assembled structure | |
| CN106760110A (en) | Based on BIM profiled sheet armored concrete hollow sandwich floor construction engineering methods | |
| CN105672664A (en) | Integral heat insulation wallboard building system | |
| CN102116092A (en) | Method for constructing reinforcing band for compensating contraction of concrete and preventing cracks | |
| CN103615076B (en) | The oblique roofing concrete construction method of a kind of heavy grade | |
| CN103352569A (en) | Construction method of integrally-poured architecture building | |
| CN107605107A (en) | A kind of method for controlling pitched roof concrete construction quality | |
| CN203270627U (en) | Construction joint structure of shear wall | |
| CN106639297A (en) | Fair-faced finishing concrete formwork system | |
| CN103883022A (en) | Earthquake-resistant, sound-insulating and crack-resistant integrated structure for inner wall and outer wall of enclosure structure and construction method thereof | |
| CN104652280B (en) | Overlength, after water fish ridge wall one-time continuous moulding irrigation method and overlength fish ridge wall thereof | |
| CN204418691U (en) | A kind of for cast-in-place vertical member and horizontal member junction concrete blocking apparatus | |
| CN101818530A (en) | Regenerative masonry wall system and construction method thereof | |
| CN110761559A (en) | Method for fixing concrete pouring template of inclined roof | |
| CN203412143U (en) | Wall body structure of integrally poured building house | |
| CN206205139U (en) | A kind of prefabricated composite construction parapet | |
| CN104032741A (en) | Rapid construction method for large-size temperature control in water conservancy project | |
| CN107938907A (en) | A kind of inclined roof exempts from formwork construction method | |
| CN202689365U (en) | Prefabricated reinforced concrete roof gutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |