CN1329607C - Method for constructing stand-board built from fair-faced concrete - Google Patents
Method for constructing stand-board built from fair-faced concrete Download PDFInfo
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- CN1329607C CN1329607C CNB2004100670349A CN200410067034A CN1329607C CN 1329607 C CN1329607 C CN 1329607C CN B2004100670349 A CNB2004100670349 A CN B2004100670349A CN 200410067034 A CN200410067034 A CN 200410067034A CN 1329607 C CN1329607 C CN 1329607C
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Abstract
The present invention provides a method for constructing stand-board built from fair-faced concrete, which comprises the steps of foundation treatment, stand-board fabricating, stand-board steam curing and stand-board installation, wherein during the stand-board fabricating, the inner side of a steel molding board is painted with release agent; the release agent is prepared by using (by weight portion) 28-32 portions of soap classes releasing agent, 28-32 portions of diesel oil and 38-42 portions of engine oil and is used along with preparation; the weight proportion of concrete for fabricating a stand-board is 100 portions of cement, 135-145 portions of sand, 260-280 portions of stone, 38-42 portions of water and 1.0-1.2 portions of the releasing agent; the process of steam curing comprises four stages of standing still, heating up, constant temperature and cooling. The surface of a precast non-prestressed stand-board built from fair-faced concrete fabricated by the construction method of the present invention is smooth and is free of bubbles; the deviation of the length, the width and the height of the precast non-prestressed stand-board are all within +-5mm, the deviation of a diagonal of the precast non-prestressed stand-board is within 7mm, the deviation of the thickness of the precast non-prestressed stand-board is within +-5mm, the deviation of the surface smoothness of the precast non-prestressed stand-board is within 5mm, and the warp of the precast non-prestressed stand-board L/800. In addition, the installation of a stand-board can be relatively carried out with structure construction synchronously, which effectively shortens construction period.
Description
Technical field
The present invention relates to a kind of job practices of clear-water concrete member, particularly a kind of job practices of stand-board built from fair-faced concrete.
Background technology
The platen of seeing of existing coliseum all adopts precast prestressed concrete to see platen, does one deck powdering layer at its surface layer again behind the installation in position and reaches requirement elegant in appearance.The primary structure form that the precast prestressed concrete of prior art is seen platen 1 as shown in Figure 1, be " Z " font structure, see in " Z " font to be provided with embedded part 11 in the platen that the cant beam of grandstand is marked time and 5 is provided with embedded part 51, is connected and fixed by embedded part and steel plate 7 each other.This " Z " font sees that the advantage of platen is, there is not installing hole in its appearance, sees that platen utilizes self and the cant beam embedded part on marking time to connect, and whole grandstand slab integral is as one, and presentation quality is higher.But its shortcoming is: one, because " Z " font sees that platen has two knuckles, make and see that platen is complicated at the template system that adds man-hour, the corresponding increase of the cost of template, and the higher zone of the quality problems frequency of occurrences often, knuckle place, knuckle is many more, and the possibility that goes wrong is big more; Be difficult to simulate its stress during operation when two, installing, so very likely in work progress, cause the destruction of seeing platen; Three, install and according to sequence construction from top to bottom the installation of seeing platen must be carried out after grandstand tops out, influence the construction period; Four, the back is installed and occurs the integral waterproofing performance of seeing platen being had certain influence towards the sky seam.
Summary of the invention
Purpose of the present invention, be to overcome the problems referred to above that the prior art precast prestressed concrete sees that platen exists, a kind of job practices of stand-board built from fair-faced concrete is provided, its prefabricated non-prestressed concrete clear water of producing is seen the platen one-shot forming, surface layer need not whitewashed, and apparent mass and inherent quality all can satisfy coliseum to seeing the quality requirement of platen.
To achieve these goals, the present invention has adopted following technical scheme: a kind of job practices of stand-board built from fair-faced concrete, be characterized in, and may further comprise the steps:
A, based process
On marking time, the cant beam of grandstand is provided with and sees mounting groove and the installing hole that platen is adaptive;
Platen is seen in b, making
Adopt and see the corresponding steel form of planform of platen and smear interleaving agent, go out to see platen, seeing on the platen by reserving a plurality of installing holes at interval with concrete for making in the steel form inboard;
C, see platen stream curing
Platen covers with steam-cured oilcloth carries out stream curing for seeing of making, the stream curing process comprise quietly stop, intensification, constant temperature, cooling four-stage;
D, see that platen installs
On will marking time through the steam-cured cant beam of seeing that platen is lifted on each bench of grandstand, the alignment installing hole inserts connecting reinforcement to each installing hole, and pouring into C40 does not have the high-strength mortar of contraction and fix.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, the platen structure shape of seeing described in the step b comprises " T " font, " L " font and " one " font.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, the mounting groove described in the step a adapts to the riser that " T " font and " L " font are seen platen respectively.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, the interleaving agent described in the step b is formulated by soap class interleaving agent 28-32 weight portion, diesel oil 28-32 weight portion, machine oil 38-42 weight portion, with using with joining.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, the concrete weight proportion described in the step b is:
100 parts of cement;
Sand 135-145 part;
Stone 260-280 part;
Water 38-42 part;
Interleaving agent 1.0-1.2 part.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, described interleaving agent is identical with the interleaving agent described in the step b.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, in the stream curing process described in the step c, quietly stop the stage and water all from concrete that smashing finishes and begin to calculate, time was controlled at 2 hours, the temperature rise period programming rate is controlled at≤15 ℃/h, be warming up to 55 ± 2 ℃ after constant temperature 7 hours, control cooling rate≤10 ℃/h then and be cooled to when the temperature difference with environment temperature is not more than 20 ℃ and finish.
The job practices of above-mentioned stand-board built from fair-faced concrete, wherein, it is one group that lifting described in the step c is adopted necessarily to stride number, lifting is earlier arranged first row and is seen platen, arrange the beginning by second and see that platen quantity successively decreases successively, until last row, to finely tune then, the platen of seeing with this group remainder after finishing divides row lifting.
The job practices of a kind of stand-board built from fair-faced concrete of the present invention is owing to adopted above technical scheme: its prefabricated non-prestressed concrete clear water of producing sees that platen has the following advantages:
1, owing to adopted " T " font (or " L " font, " one " font) structure, see that platen does not exist prior art " Z " font to see second knuckle of platen, make and see that platen produces quality problems in manufacturing process frequency greatly reduces, formwork structure is simple economy comparatively also.
2, the change of seeing the platen structure form makes the mode of lifting can simulate its duty, sees platen owing to the stressed influence that causes is installed decreases thereby make.
3, the form of structure of seeing platen makes its installation can and must adopt from bottom to top sequence construction, make the installation work of seeing platen the isostructure construction carry out (for example when carrying out 3,4 layers of structure construction, can carry out the installation that 1,2 bench are seen platen simultaneously) relatively synchronously, shortened the duration effectively.
4, see that the plate of platen and the plate between the plate stitch the horizontal joint that is on the vertical plane, thereby make the waterproof ability of seeing platen obtain guarantee.
The prefabricated non-prestressed concrete clear water that adopts the job practices of the stand-board built from fair-faced concrete of invention to produce sees that every qualitative data of platen is as follows: the deviation of length, width, height is in ± 5mm, cornerwise deviation is in 7mm, the deviation of thickness of slab is in ± 5mm, the deviation of surface finish is in 5mm, and warpage is L/800.
Description of drawings
Fig. 1 is the scheme of installation that prior art " Z " font is seen platen;
Fig. 2 is the form that the is connected and fixed schematic diagram that prior art " Z " font is seen platen;
Fig. 3 is the structure sectional view of " T " font stand-board built from fair-faced concrete among the present invention;
Fig. 4 is the structure sectional view of " L " font stand-board built from fair-faced concrete among the present invention;
Fig. 5 is the structure sectional view of " one " font stand-board built from fair-faced concrete among the present invention;
Fig. 6 is the scheme of installation of " T " font stand-board built from fair-faced concrete among the present invention;
Fig. 7 is the form that the is connected and fixed schematic diagram of " T " font stand-board built from fair-faced concrete among the present invention;
Fig. 8 is the installation design sketch of the stand-board built from fair-faced concrete among the present invention.
The specific embodiment
The job practices of stand-board built from fair-faced concrete of the present invention can be further described with the following Examples.
The job practices of embodiment one, " T " font stand-board built from fair-faced concrete
The structure of " T " font stand-board built from fair-faced concrete 2 among the present invention as shown in Figure 3, it comprises the transverse slat 21 and the riser 22 of one moulding by casting, respectively is provided with installing hole 211 at the two ends of transverse slat, is provided with installing hole 221 on the top of riser.The concrete steps of its construction are as follows:
At first on marking time, the Stand Inclined Beams that " T " font stand-board built from fair-faced concrete prepare to be installed is provided with one with the adaptive mounting groove of the riser of " T " font stand-board built from fair-faced concrete and by the suitable installing hole of installing hole that is provided with at interval on a plurality of and " T " font stand-board built from fair-faced concrete.Adopt with " T " font then and see the corresponding steel form of platen and smear interleaving agent in the steel form inboard, go out to see platen with concrete for making, seeing on the platen by reserving the suitable installing hole of a plurality of installing holes on marking time with cant beam at interval and seeing mutual adaptive installing hole between the platen.In order to guarantee to see the presentation quality of platen, steel form mainly adopts and erects duplex structure (be about to two and see that platen is by symmetric mode moulding by casting together) in construction, a small amount of simply connected structure that adopts the band bed die, can make like this see the platen front and back can both with the closely connected moulding of template.Used concrete weight proportion is: 100 parts of cement, 140 parts in sand, 270 parts in stone, 40 parts in water, 1.1 parts of interleaving agents.The interleaving agent that uses in the interleaving agent that smear the steel form inboard and the concrete is identical, and is all formulated by soap class interleaving agent 30 weight portions, diesel oil 30 weight portions, machine oil 40 weight portions, with using with joining.Use the platen smooth surface of producing after the interleaving agent of seeing not have bubble, also help the maintenance of mould.That makes sees that platen is then with steam-cured oilcloth covering carrying out stream curing, the stream curing process comprise quietly stop, intensification, constant temperature, cooling four-stage, quietly stop the stage and water all from concrete that smashing finishes and begin to calculate, time was controlled at 2 hours, the temperature rise period programming rate is controlled at≤15 ℃/h, constant temperature is 7 hours after being warming up to 55 ± 2 ℃, controls cooling rate≤10 ℃/h then and is cooled to when the temperature difference with environment temperature is not more than 20 ℃ and finishes.Installation situation such as Fig. 6, shown in Figure 7 of " T " font stand-board built from fair-faced concrete, 2 is " T " font stand-board built from fair-faced concrete among the figure, and 5 mark time for the cant beam of grandstand, and 6 is connecting reinforcement.Installation process will be on will marking time through the steam-cured cant beam of seeing that platen is lifted on each bench of grandstand, and the alignment installing hole inserts connecting reinforcement to each installing hole, and pouring into C40 does not have the contraction high-strength mortar and fix.Consider to allow the distance of machine-walking the shortest during installation to reduce the construction period and to save cost, employing is one group necessarily to stride number (for example 9 striding), first row of lifting earlier sees platen, arrange the beginning by second and see that platen quantity successively decreases successively, until last row, finely tune then, the platen of seeing with this group remainder after finishing divides row lifting.The installation effect of seeing platen as shown in Figure 8.
The job practices of embodiment two, " L " font stand-board built from fair-faced concrete
The structure of " L " font stand-board built from fair-faced concrete 3 among the present invention as shown in Figure 4, it comprises the transverse slat 31 and the riser 32 of one moulding by casting, respectively is provided with installing hole 311 at the two ends of transverse slat, is provided with installing hole 321 on the top of riser.The concrete steps of its construction are as follows:
At first on marking time, the Stand Inclined Beams that " L " font stand-board built from fair-faced concrete prepare to be installed is provided with one with the adaptive mounting groove of the riser of " L " font stand-board built from fair-faced concrete and by the suitable installing hole of installing hole that is provided with at interval on a plurality of and " L " font stand-board built from fair-faced concrete.Adopt with " L " font then and see the corresponding steel form of platen and smear interleaving agent in the steel form inboard, go out to see platen with concrete for making, seeing on the platen by reserving the suitable installing hole of a plurality of installing holes on marking time with cant beam at interval and seeing mutual adaptive installing hole between the platen.Steel template structure and embodiment one are similar, and main the employing erect the duplex structure, a small amount of simply connected structure that adopts the band bed die.Used concrete weight proportion is: 100 parts of cement, 135 parts in sand, 280 parts in stone, 38 parts in water, 1.2 parts of interleaving agents.The interleaving agent that uses in the interleaving agent that smear the steel form inboard and the concrete is identical, and is all formulated by soap class interleaving agent 28 weight portions, diesel oil 32 weight portions, machine oil 38 weight portions, with using with joining.The stream curing of " L " font stand-board built from fair-faced concrete and installation are with embodiment one.
The job practices of embodiment three, " one " font stand-board built from fair-faced concrete
The structure of " one " font stand-board built from fair-faced concrete 4 among the present invention as shown in Figure 5, it is a transverse slat, respectively is provided with installing hole 41,42 at the two ends of transverse slat.The concrete steps of its construction are as follows:
At first mark time upward by the suitable installing hole of installing hole that is provided with at interval on a plurality of and " one " font stand-board built from fair-faced concrete in the Stand Inclined Beams of preparing installation " one " font stand-board built from fair-faced concrete.Adopt with " one " font then and see the corresponding steel form of platen and smear interleaving agent in the steel form inboard, go out to see platen with concrete for making, seeing on the platen by reserving the suitable installing hole of a plurality of installing holes on marking time with cant beam at interval and seeing mutual adaptive installing hole between the platen.Steel template structure and embodiment one are similar, and main the employing erect the duplex structure, a small amount of simply connected structure that adopts the band bed die.Used concrete weight proportion is: 100 parts of cement, 145 parts in sand, 260 parts in stone, 42 parts in water, 1.0 parts of interleaving agents.The interleaving agent that uses in the interleaving agent that smear the steel form inboard and the concrete is identical, and is all formulated by soap class interleaving agent 32 weight portions, diesel oil 28 weight portions, machine oil 42 weight portions, with using with joining.The stream curing of " one " font stand-board built from fair-faced concrete and installation are with embodiment one.
Claims (8)
1, a kind of job practices of stand-board built from fair-faced concrete is characterized in that: may further comprise the steps:
A, based process
On marking time, the cant beam of grandstand is provided with and sees mounting groove and the installing hole that platen is adaptive;
Platen is seen in b, making
Adopt and see the corresponding steel form of planform of platen and smear interleaving agent, go out to see platen, seeing on the platen by reserving a plurality of installing holes at interval with concrete for making in the steel form inboard;
C, see platen stream curing
Platen covers with steam-cured oilcloth carries out stream curing for seeing of making, the stream curing process comprise quietly stop, intensification, constant temperature, cooling four-stage;
D, see that platen installs
On will marking time through the steam-cured cant beam of seeing that platen is lifted on each bench of grandstand, the alignment installing hole inserts connecting reinforcement to each installing hole, and pouring into C40 does not have the high-strength mortar of contraction and fix.
2, the job practices of stand-board built from fair-faced concrete according to claim 1 is characterized in that: the platen structure shape of seeing described in the step b comprises " T " font, " L " font and " one " font.
3, the job practices of stand-board built from fair-faced concrete according to claim 1 and 2 is characterized in that: the mounting groove described in the step a adapts to the riser that " T " font and " L " font are seen platen respectively.
4, the job practices of stand-board built from fair-faced concrete according to claim 1 is characterized in that: the interleaving agent described in the step b is formulated by soap class interleaving agent 28-32 weight portion, diesel oil 28-32 weight portion, machine oil 38-42 weight portion, with using with joining.
5, the job practices of stand-board built from fair-faced concrete according to claim 1 is characterized in that: the concrete weight proportion described in the step b is:
100 parts of cement;
Sand 135-145 part;
Stone 260-280 part;
Water 38-42 part;
Interleaving agent 1.0-1.2 part.
6, the job practices of stand-board built from fair-faced concrete according to claim 5 is characterized in that: the interleaving agent that smear contained interleaving agent and steel form inboard in the described concrete is identical.
7, the job practices of stand-board built from fair-faced concrete according to claim 1, it is characterized in that: in the stream curing process described in the step c, quietly stop the stage and water all from concrete that smashing finishes and begin to calculate, time was controlled at 2 hours, the temperature rise period programming rate is controlled at≤15 ℃/h, constant temperature is 7 hours after being warming up to 55 ± 2 ℃, controls cooling rate≤10 ℃/h then and is cooled to when the temperature difference with environment temperature is not more than 20 ℃ and finishes.
8, the job practices of stand-board built from fair-faced concrete according to claim 1, it is characterized in that: it is one group that the lifting described in the steps d is adopted necessarily to stride number, lifting is earlier arranged first row and is seen platen, arrange the beginning by second and see that platen quantity successively decreases successively, until last row, finely tune then, the platen of seeing with this group remainder after finishing divides row lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100670349A CN1329607C (en) | 2004-10-11 | 2004-10-11 | Method for constructing stand-board built from fair-faced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100670349A CN1329607C (en) | 2004-10-11 | 2004-10-11 | Method for constructing stand-board built from fair-faced concrete |
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| Publication Number | Publication Date |
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| CN1760490A CN1760490A (en) | 2006-04-19 |
| CN1329607C true CN1329607C (en) | 2007-08-01 |
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| CNB2004100670349A Expired - Fee Related CN1329607C (en) | 2004-10-11 | 2004-10-11 | Method for constructing stand-board built from fair-faced concrete |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440665B (en) * | 2007-11-22 | 2011-10-19 | 天津市建工工程总承包有限公司 | Bolt adjusting precise mounting method for prefabricated fair-faced concrete grandstand slab |
| CN101713237B (en) * | 2009-11-17 | 2011-06-29 | 中国建筑第八工程局有限公司 | Construction method of large-volume original decorative large pier stud fair-faced concrete |
| CN101886468B (en) * | 2010-03-29 | 2011-08-24 | 南京大地建设集团有限责任公司 | Construction method of suspension type template support in high-position conjoined structure |
| CN102001848B (en) * | 2010-11-15 | 2012-07-25 | 中南大学 | Steamed high-performance concrete and preparation method thereof |
| CN102953548A (en) * | 2011-08-25 | 2013-03-06 | 上海宝冶集团有限公司 | Pouring process for fair-faced concrete stand board |
| CN102490246B (en) * | 2011-12-09 | 2013-09-11 | 山东万斯达建筑科技有限公司 | Concrete prefabricated part making method |
| CN103334588A (en) * | 2013-06-21 | 2013-10-02 | 鞍山三冶建筑工程有限公司 | Construction method for bare concrete prefabricated stand board |
| CN103817778B (en) * | 2014-02-26 | 2016-09-07 | 中天建设集团有限公司 | Prefabricated fair-faced concrete component construction method |
| CN109235943B (en) * | 2018-09-30 | 2024-08-23 | 央固工程科技（上海）有限公司 | Reinforced concrete prefabricated assembly type cinema stand structure |
| CN109968501B (en) * | 2019-03-27 | 2024-04-16 | 宣城市政建设集团有限公司 | Prefabricated stand convenient to installation and preparation mould thereof |
| CN111535623B (en) * | 2020-05-11 | 2021-06-15 | 中建一局集团建设发展有限公司 | Design method of three-fold-line double-step precast concrete stand plate |
| CN113062638A (en) * | 2021-03-05 | 2021-07-02 | 上海建工一建集团有限公司 | Assembly type platform structure and construction method |
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| JPH05295909A (en) * | 1992-04-21 | 1993-11-09 | Taisei Corp | Outdoor-stand |
| CN2154300Y (en) * | 1992-07-07 | 1994-01-26 | 佳木斯第一建筑工程公司 | Combined prefabricated reinforced concrete residence stairs |
| JPH0853949A (en) * | 1994-08-11 | 1996-02-27 | Fujita Corp | Waterproofing method of stand step floor |
| CN2431346Y (en) * | 2000-07-03 | 2001-05-23 | 丰国勋 | Side guard board structure for movable stand |
| CN2575230Y (en) * | 2002-11-05 | 2003-09-24 | 罗伟 | Raising and lowering horizontal transport mechanical parking cars equipment |
| CN2615234Y (en) * | 2003-05-29 | 2004-05-12 | 荣希俊 | Assembling wooden & composite stair step tread |
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- 2004-10-11 CN CNB2004100670349A patent/CN1329607C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05295909A (en) * | 1992-04-21 | 1993-11-09 | Taisei Corp | Outdoor-stand |
| CN2154300Y (en) * | 1992-07-07 | 1994-01-26 | 佳木斯第一建筑工程公司 | Combined prefabricated reinforced concrete residence stairs |
| JPH0853949A (en) * | 1994-08-11 | 1996-02-27 | Fujita Corp | Waterproofing method of stand step floor |
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| CN2575230Y (en) * | 2002-11-05 | 2003-09-24 | 罗伟 | Raising and lowering horizontal transport mechanical parking cars equipment |
| CN2615234Y (en) * | 2003-05-29 | 2004-05-12 | 荣希俊 | Assembling wooden & composite stair step tread |
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| CN1760490A (en) | 2006-04-19 |
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